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-rw-r--r--drivers/gpu/drm/bridge/adv7511/adv7511.h16
-rw-r--r--drivers/gpu/drm/bridge/adv7511/adv7511_cec.c14
-rw-r--r--drivers/gpu/drm/bridge/adv7511/adv7511_drv.c108
-rw-r--r--drivers/gpu/drm/bridge/adv7511/adv7533.c7
-rw-r--r--drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c11
-rw-r--r--drivers/gpu/drm/bridge/analogix/anx7625.c51
-rw-r--r--drivers/gpu/drm/bridge/analogix/anx7625.h4
-rw-r--r--drivers/gpu/drm/bridge/chipone-icn6211.c2
-rw-r--r--drivers/gpu/drm/bridge/imx/Kconfig11
-rw-r--r--drivers/gpu/drm/bridge/imx/Makefile1
-rw-r--r--drivers/gpu/drm/bridge/imx/imx93-mipi-dsi.c917
-rw-r--r--drivers/gpu/drm/bridge/ite-it66121.c17
-rw-r--r--drivers/gpu/drm/bridge/lontium-lt9211.c2
-rw-r--r--drivers/gpu/drm/bridge/lontium-lt9611uxc.c2
-rw-r--r--drivers/gpu/drm/bridge/lvds-codec.c12
-rw-r--r--drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c57
-rw-r--r--drivers/gpu/drm/bridge/panel.c2
-rw-r--r--drivers/gpu/drm/bridge/samsung-dsim.c60
-rw-r--r--drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c6
-rw-r--r--drivers/gpu/drm/bridge/synopsys/dw-hdmi.c2
-rw-r--r--drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c99
-rw-r--r--drivers/gpu/drm/bridge/tc358767.c2
-rw-r--r--drivers/gpu/drm/bridge/tc358768.c245
-rw-r--r--drivers/gpu/drm/bridge/ti-dlpc3433.c2
-rw-r--r--drivers/gpu/drm/bridge/ti-sn65dsi83.c2
-rw-r--r--drivers/gpu/drm/bridge/ti-sn65dsi86.c1
26 files changed, 1433 insertions, 220 deletions
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511.h b/drivers/gpu/drm/bridge/adv7511/adv7511.h
index 1744580024..39c9ece373 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511.h
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511.h
@@ -333,6 +333,18 @@ enum adv7511_type {
#define ADV7511_MAX_ADDRS 3
+struct adv7511_chip_info {
+ enum adv7511_type type;
+ unsigned int max_mode_clock_khz;
+ unsigned int max_lane_freq_khz;
+ const char * const *supply_names;
+ unsigned int num_supplies;
+ unsigned int reg_cec_offset;
+ bool has_dsi;
+ bool link_config;
+ bool hpd_override_enable;
+};
+
struct adv7511 {
struct i2c_client *i2c_main;
struct i2c_client *i2c_edid;
@@ -341,7 +353,6 @@ struct adv7511 {
struct regmap *regmap;
struct regmap *regmap_cec;
- unsigned int reg_cec_offset;
enum drm_connector_status status;
bool powered;
@@ -369,7 +380,6 @@ struct adv7511 {
struct gpio_desc *gpio_pd;
struct regulator_bulk_data *supplies;
- unsigned int num_supplies;
/* ADV7533 DSI RX related params */
struct device_node *host_node;
@@ -377,7 +387,7 @@ struct adv7511 {
u8 num_dsi_lanes;
bool use_timing_gen;
- enum adv7511_type type;
+ const struct adv7511_chip_info *info;
struct platform_device *audio_pdev;
struct cec_adapter *cec_adap;
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_cec.c b/drivers/gpu/drm/bridge/adv7511/adv7511_cec.c
index 2a6b91f752..44451a9658 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_cec.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_cec.c
@@ -33,7 +33,7 @@ static const u8 ADV7511_REG_CEC_RX_FRAME_LEN[] = {
static void adv_cec_tx_raw_status(struct adv7511 *adv7511, u8 tx_raw_status)
{
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
unsigned int val;
if (regmap_read(adv7511->regmap_cec,
@@ -84,7 +84,7 @@ static void adv_cec_tx_raw_status(struct adv7511 *adv7511, u8 tx_raw_status)
static void adv7511_cec_rx(struct adv7511 *adv7511, int rx_buf)
{
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
struct cec_msg msg = {};
unsigned int len;
unsigned int val;
@@ -121,7 +121,7 @@ static void adv7511_cec_rx(struct adv7511 *adv7511, int rx_buf)
void adv7511_cec_irq_process(struct adv7511 *adv7511, unsigned int irq1)
{
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
const u32 irq_tx_mask = ADV7511_INT1_CEC_TX_READY |
ADV7511_INT1_CEC_TX_ARBIT_LOST |
ADV7511_INT1_CEC_TX_RETRY_TIMEOUT;
@@ -177,7 +177,7 @@ void adv7511_cec_irq_process(struct adv7511 *adv7511, unsigned int irq1)
static int adv7511_cec_adap_enable(struct cec_adapter *adap, bool enable)
{
struct adv7511 *adv7511 = cec_get_drvdata(adap);
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
if (adv7511->i2c_cec == NULL)
return -EIO;
@@ -223,7 +223,7 @@ static int adv7511_cec_adap_enable(struct cec_adapter *adap, bool enable)
static int adv7511_cec_adap_log_addr(struct cec_adapter *adap, u8 addr)
{
struct adv7511 *adv7511 = cec_get_drvdata(adap);
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
unsigned int i, free_idx = ADV7511_MAX_ADDRS;
if (!adv7511->cec_enabled_adap)
@@ -292,7 +292,7 @@ static int adv7511_cec_adap_transmit(struct cec_adapter *adap, u8 attempts,
u32 signal_free_time, struct cec_msg *msg)
{
struct adv7511 *adv7511 = cec_get_drvdata(adap);
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
u8 len = msg->len;
unsigned int i;
@@ -345,7 +345,7 @@ static int adv7511_cec_parse_dt(struct device *dev, struct adv7511 *adv7511)
int adv7511_cec_init(struct device *dev, struct adv7511 *adv7511)
{
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
int ret = adv7511_cec_parse_dt(dev, adv7511);
if (ret)
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index 2611afd2c1..8be235144f 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
@@ -121,7 +121,7 @@ static const struct regmap_config adv7511_regmap_config = {
.val_bits = 8,
.max_register = 0xff,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
.reg_defaults_raw = adv7511_register_defaults,
.num_reg_defaults_raw = ARRAY_SIZE(adv7511_register_defaults),
@@ -354,7 +354,7 @@ static void __adv7511_power_on(struct adv7511 *adv7511)
* first few seconds after enabling the output. On the other hand
* adv7535 require to enable HPD Override bit for proper HPD.
*/
- if (adv7511->type == ADV7535)
+ if (adv7511->info->hpd_override_enable)
regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
ADV7535_REG_POWER2_HPD_OVERRIDE,
ADV7535_REG_POWER2_HPD_OVERRIDE);
@@ -373,7 +373,7 @@ static void adv7511_power_on(struct adv7511 *adv7511)
*/
regcache_sync(adv7511->regmap);
- if (adv7511->type == ADV7533 || adv7511->type == ADV7535)
+ if (adv7511->info->has_dsi)
adv7533_dsi_power_on(adv7511);
adv7511->powered = true;
}
@@ -381,7 +381,7 @@ static void adv7511_power_on(struct adv7511 *adv7511)
static void __adv7511_power_off(struct adv7511 *adv7511)
{
/* TODO: setup additional power down modes */
- if (adv7511->type == ADV7535)
+ if (adv7511->info->hpd_override_enable)
regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
ADV7535_REG_POWER2_HPD_OVERRIDE, 0);
@@ -397,7 +397,7 @@ static void __adv7511_power_off(struct adv7511 *adv7511)
static void adv7511_power_off(struct adv7511 *adv7511)
{
__adv7511_power_off(adv7511);
- if (adv7511->type == ADV7533 || adv7511->type == ADV7535)
+ if (adv7511->info->has_dsi)
adv7533_dsi_power_off(adv7511);
adv7511->powered = false;
}
@@ -682,7 +682,7 @@ adv7511_detect(struct adv7511 *adv7511, struct drm_connector *connector)
status = connector_status_disconnected;
} else {
/* Renable HPD sensing */
- if (adv7511->type == ADV7535)
+ if (adv7511->info->hpd_override_enable)
regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
ADV7535_REG_POWER2_HPD_OVERRIDE,
ADV7535_REG_POWER2_HPD_OVERRIDE);
@@ -786,7 +786,7 @@ static void adv7511_mode_set(struct adv7511 *adv7511,
else
low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
- if (adv7511->type == ADV7511)
+ if (adv7511->info->type == ADV7511)
regmap_update_bits(adv7511->regmap, 0xfb,
0x6, low_refresh_rate << 1);
else
@@ -921,7 +921,7 @@ static enum drm_mode_status adv7511_bridge_mode_valid(struct drm_bridge *bridge,
{
struct adv7511 *adv = bridge_to_adv7511(bridge);
- if (adv->type == ADV7533 || adv->type == ADV7535)
+ if (adv->info->has_dsi)
return adv7533_mode_valid(adv, mode);
else
return adv7511_mode_valid(adv, mode);
@@ -1004,37 +1004,30 @@ static const char * const adv7533_supply_names[] = {
static int adv7511_init_regulators(struct adv7511 *adv)
{
+ const char * const *supply_names = adv->info->supply_names;
+ unsigned int num_supplies = adv->info->num_supplies;
struct device *dev = &adv->i2c_main->dev;
- const char * const *supply_names;
unsigned int i;
int ret;
- if (adv->type == ADV7511) {
- supply_names = adv7511_supply_names;
- adv->num_supplies = ARRAY_SIZE(adv7511_supply_names);
- } else {
- supply_names = adv7533_supply_names;
- adv->num_supplies = ARRAY_SIZE(adv7533_supply_names);
- }
-
- adv->supplies = devm_kcalloc(dev, adv->num_supplies,
+ adv->supplies = devm_kcalloc(dev, num_supplies,
sizeof(*adv->supplies), GFP_KERNEL);
if (!adv->supplies)
return -ENOMEM;
- for (i = 0; i < adv->num_supplies; i++)
+ for (i = 0; i < num_supplies; i++)
adv->supplies[i].supply = supply_names[i];
- ret = devm_regulator_bulk_get(dev, adv->num_supplies, adv->supplies);
+ ret = devm_regulator_bulk_get(dev, num_supplies, adv->supplies);
if (ret)
return ret;
- return regulator_bulk_enable(adv->num_supplies, adv->supplies);
+ return regulator_bulk_enable(num_supplies, adv->supplies);
}
static void adv7511_uninit_regulators(struct adv7511 *adv)
{
- regulator_bulk_disable(adv->num_supplies, adv->supplies);
+ regulator_bulk_disable(adv->info->num_supplies, adv->supplies);
}
static bool adv7511_cec_register_volatile(struct device *dev, unsigned int reg)
@@ -1042,7 +1035,7 @@ static bool adv7511_cec_register_volatile(struct device *dev, unsigned int reg)
struct i2c_client *i2c = to_i2c_client(dev);
struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
- reg -= adv7511->reg_cec_offset;
+ reg -= adv7511->info->reg_cec_offset;
switch (reg) {
case ADV7511_REG_CEC_RX1_FRAME_HDR:
@@ -1068,7 +1061,7 @@ static const struct regmap_config adv7511_cec_regmap_config = {
.val_bits = 8,
.max_register = 0xff,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
.volatile_reg = adv7511_cec_register_volatile,
};
@@ -1093,12 +1086,10 @@ static int adv7511_init_cec_regmap(struct adv7511 *adv)
goto err;
}
- if (adv->type == ADV7533 || adv->type == ADV7535) {
+ if (adv->info->reg_cec_offset == ADV7533_REG_CEC_OFFSET) {
ret = adv7533_patch_cec_registers(adv);
if (ret)
goto err;
-
- adv->reg_cec_offset = ADV7533_REG_CEC_OFFSET;
}
return 0;
@@ -1192,7 +1183,6 @@ static int adv7511_parse_dt(struct device_node *np,
static int adv7511_probe(struct i2c_client *i2c)
{
- const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
struct adv7511_link_config link_config;
struct adv7511 *adv7511;
struct device *dev = &i2c->dev;
@@ -1209,15 +1199,11 @@ static int adv7511_probe(struct i2c_client *i2c)
adv7511->i2c_main = i2c;
adv7511->powered = false;
adv7511->status = connector_status_disconnected;
-
- if (dev->of_node)
- adv7511->type = (enum adv7511_type)of_device_get_match_data(dev);
- else
- adv7511->type = id->driver_data;
+ adv7511->info = i2c_get_match_data(i2c);
memset(&link_config, 0, sizeof(link_config));
- if (adv7511->type == ADV7511)
+ if (adv7511->info->link_config)
ret = adv7511_parse_dt(dev->of_node, &link_config);
else
ret = adv7533_parse_dt(dev->of_node, adv7511);
@@ -1254,7 +1240,7 @@ static int adv7511_probe(struct i2c_client *i2c)
goto uninit_regulators;
dev_dbg(dev, "Rev. %d\n", val);
- if (adv7511->type == ADV7511)
+ if (adv7511->info->type == ADV7511)
ret = regmap_register_patch(adv7511->regmap,
adv7511_fixed_registers,
ARRAY_SIZE(adv7511_fixed_registers));
@@ -1306,7 +1292,7 @@ static int adv7511_probe(struct i2c_client *i2c)
i2c_set_clientdata(i2c, adv7511);
- if (adv7511->type == ADV7511)
+ if (adv7511->info->link_config)
adv7511_set_link_config(adv7511, &link_config);
ret = adv7511_cec_init(dev, adv7511);
@@ -1325,7 +1311,7 @@ static int adv7511_probe(struct i2c_client *i2c)
adv7511_audio_init(dev, adv7511);
- if (adv7511->type == ADV7533 || adv7511->type == ADV7535) {
+ if (adv7511->info->has_dsi) {
ret = adv7533_attach_dsi(adv7511);
if (ret)
goto err_unregister_audio;
@@ -1368,22 +1354,50 @@ static void adv7511_remove(struct i2c_client *i2c)
i2c_unregister_device(adv7511->i2c_edid);
}
+static const struct adv7511_chip_info adv7511_chip_info = {
+ .type = ADV7511,
+ .supply_names = adv7511_supply_names,
+ .num_supplies = ARRAY_SIZE(adv7511_supply_names),
+ .link_config = true,
+};
+
+static const struct adv7511_chip_info adv7533_chip_info = {
+ .type = ADV7533,
+ .max_mode_clock_khz = 80000,
+ .max_lane_freq_khz = 800000,
+ .supply_names = adv7533_supply_names,
+ .num_supplies = ARRAY_SIZE(adv7533_supply_names),
+ .reg_cec_offset = ADV7533_REG_CEC_OFFSET,
+ .has_dsi = true,
+};
+
+static const struct adv7511_chip_info adv7535_chip_info = {
+ .type = ADV7535,
+ .max_mode_clock_khz = 148500,
+ .max_lane_freq_khz = 891000,
+ .supply_names = adv7533_supply_names,
+ .num_supplies = ARRAY_SIZE(adv7533_supply_names),
+ .reg_cec_offset = ADV7533_REG_CEC_OFFSET,
+ .has_dsi = true,
+ .hpd_override_enable = true,
+};
+
static const struct i2c_device_id adv7511_i2c_ids[] = {
- { "adv7511", ADV7511 },
- { "adv7511w", ADV7511 },
- { "adv7513", ADV7511 },
- { "adv7533", ADV7533 },
- { "adv7535", ADV7535 },
+ { "adv7511", (kernel_ulong_t)&adv7511_chip_info },
+ { "adv7511w", (kernel_ulong_t)&adv7511_chip_info },
+ { "adv7513", (kernel_ulong_t)&adv7511_chip_info },
+ { "adv7533", (kernel_ulong_t)&adv7533_chip_info },
+ { "adv7535", (kernel_ulong_t)&adv7535_chip_info },
{ }
};
MODULE_DEVICE_TABLE(i2c, adv7511_i2c_ids);
static const struct of_device_id adv7511_of_ids[] = {
- { .compatible = "adi,adv7511", .data = (void *)ADV7511 },
- { .compatible = "adi,adv7511w", .data = (void *)ADV7511 },
- { .compatible = "adi,adv7513", .data = (void *)ADV7511 },
- { .compatible = "adi,adv7533", .data = (void *)ADV7533 },
- { .compatible = "adi,adv7535", .data = (void *)ADV7535 },
+ { .compatible = "adi,adv7511", .data = &adv7511_chip_info },
+ { .compatible = "adi,adv7511w", .data = &adv7511_chip_info },
+ { .compatible = "adi,adv7513", .data = &adv7511_chip_info },
+ { .compatible = "adi,adv7533", .data = &adv7533_chip_info },
+ { .compatible = "adi,adv7535", .data = &adv7535_chip_info },
{ }
};
MODULE_DEVICE_TABLE(of, adv7511_of_ids);
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7533.c b/drivers/gpu/drm/bridge/adv7511/adv7533.c
index 7e3e56441a..4481489aaf 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7533.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7533.c
@@ -103,18 +103,15 @@ void adv7533_dsi_power_off(struct adv7511 *adv)
enum drm_mode_status adv7533_mode_valid(struct adv7511 *adv,
const struct drm_display_mode *mode)
{
- unsigned long max_lane_freq;
struct mipi_dsi_device *dsi = adv->dsi;
u8 bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);
/* Check max clock for either 7533 or 7535 */
- if (mode->clock > (adv->type == ADV7533 ? 80000 : 148500))
+ if (mode->clock > adv->info->max_mode_clock_khz)
return MODE_CLOCK_HIGH;
/* Check max clock for each lane */
- max_lane_freq = (adv->type == ADV7533 ? 800000 : 891000);
-
- if (mode->clock * bpp > max_lane_freq * adv->num_dsi_lanes)
+ if (mode->clock * bpp > adv->info->max_lane_freq_khz * adv->num_dsi_lanes)
return MODE_CLOCK_HIGH;
return MODE_OK;
diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
index 800555aef9..5748a8581a 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c
@@ -1211,6 +1211,7 @@ static const u16 anx78xx_chipid_list[] = {
0x7808,
0x7812,
0x7814,
+ 0x7816,
0x7818,
};
@@ -1231,9 +1232,7 @@ static int anx78xx_i2c_probe(struct i2c_client *client)
mutex_init(&anx78xx->lock);
-#if IS_ENABLED(CONFIG_OF)
anx78xx->bridge.of_node = client->dev.of_node;
-#endif
anx78xx->client = client;
i2c_set_clientdata(client, anx78xx);
@@ -1367,16 +1366,11 @@ static void anx78xx_i2c_remove(struct i2c_client *client)
kfree(anx78xx->edid);
}
-static const struct i2c_device_id anx78xx_id[] = {
- { "anx7814", 0 },
- { /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(i2c, anx78xx_id);
-
static const struct of_device_id anx78xx_match_table[] = {
{ .compatible = "analogix,anx7808", .data = anx7808_i2c_addresses },
{ .compatible = "analogix,anx7812", .data = anx781x_i2c_addresses },
{ .compatible = "analogix,anx7814", .data = anx781x_i2c_addresses },
+ { .compatible = "analogix,anx7816", .data = anx781x_i2c_addresses },
{ .compatible = "analogix,anx7818", .data = anx781x_i2c_addresses },
{ /* sentinel */ },
};
@@ -1389,7 +1383,6 @@ static struct i2c_driver anx78xx_driver = {
},
.probe = anx78xx_i2c_probe,
.remove = anx78xx_i2c_remove,
- .id_table = anx78xx_id,
};
module_i2c_driver(anx78xx_driver);
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index 5168628f11..29d91493b1 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -1298,10 +1298,32 @@ static void anx7625_config(struct anx7625_data *ctx)
XTAL_FRQ_SEL, XTAL_FRQ_27M);
}
+static int anx7625_hpd_timer_config(struct anx7625_data *ctx)
+{
+ int ret;
+
+ /* Set irq detect window to 2ms */
+ ret = anx7625_reg_write(ctx, ctx->i2c.tx_p2_client,
+ HPD_DET_TIMER_BIT0_7, HPD_TIME & 0xFF);
+ ret |= anx7625_reg_write(ctx, ctx->i2c.tx_p2_client,
+ HPD_DET_TIMER_BIT8_15,
+ (HPD_TIME >> 8) & 0xFF);
+ ret |= anx7625_reg_write(ctx, ctx->i2c.tx_p2_client,
+ HPD_DET_TIMER_BIT16_23,
+ (HPD_TIME >> 16) & 0xFF);
+
+ return ret;
+}
+
+static int anx7625_read_hpd_gpio_config_status(struct anx7625_data *ctx)
+{
+ return anx7625_reg_read(ctx, ctx->i2c.rx_p0_client, GPIO_CTRL_2);
+}
+
static void anx7625_disable_pd_protocol(struct anx7625_data *ctx)
{
struct device *dev = ctx->dev;
- int ret;
+ int ret, val;
/* Reset main ocm */
ret = anx7625_reg_write(ctx, ctx->i2c.rx_p0_client, 0x88, 0x40);
@@ -1315,6 +1337,19 @@ static void anx7625_disable_pd_protocol(struct anx7625_data *ctx)
DRM_DEV_DEBUG_DRIVER(dev, "disable PD feature fail.\n");
else
DRM_DEV_DEBUG_DRIVER(dev, "disable PD feature succeeded.\n");
+
+ /*
+ * Make sure the HPD GPIO already be configured after OCM release before
+ * setting HPD detect window register. Here we poll the status register
+ * at maximum 40ms, then config HPD irq detect window register
+ */
+ readx_poll_timeout(anx7625_read_hpd_gpio_config_status,
+ ctx, val,
+ ((val & HPD_SOURCE) || (val < 0)),
+ 2000, 2000 * 20);
+
+ /* Set HPD irq detect window to 2ms */
+ anx7625_hpd_timer_config(ctx);
}
static int anx7625_ocm_loading_check(struct anx7625_data *ctx)
@@ -1437,20 +1472,6 @@ static void anx7625_start_dp_work(struct anx7625_data *ctx)
static int anx7625_read_hpd_status_p0(struct anx7625_data *ctx)
{
- int ret;
-
- /* Set irq detect window to 2ms */
- ret = anx7625_reg_write(ctx, ctx->i2c.tx_p2_client,
- HPD_DET_TIMER_BIT0_7, HPD_TIME & 0xFF);
- ret |= anx7625_reg_write(ctx, ctx->i2c.tx_p2_client,
- HPD_DET_TIMER_BIT8_15,
- (HPD_TIME >> 8) & 0xFF);
- ret |= anx7625_reg_write(ctx, ctx->i2c.tx_p2_client,
- HPD_DET_TIMER_BIT16_23,
- (HPD_TIME >> 16) & 0xFF);
- if (ret < 0)
- return ret;
-
return anx7625_reg_read(ctx, ctx->i2c.rx_p0_client, SYSTEM_STSTUS);
}
diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.h b/drivers/gpu/drm/bridge/analogix/anx7625.h
index 80d3fb4e98..39ed35d338 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.h
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.h
@@ -259,6 +259,10 @@
#define AP_MIPI_RX_EN BIT(5) /* 1: MIPI RX input in 0: no RX in */
#define AP_DISABLE_PD BIT(6)
#define AP_DISABLE_DISPLAY BIT(7)
+
+#define GPIO_CTRL_2 0x49
+#define HPD_SOURCE BIT(6)
+
/***************************************************************/
/* Register definition of device address 0x84 */
#define MIPI_PHY_CONTROL_3 0x03
diff --git a/drivers/gpu/drm/bridge/chipone-icn6211.c b/drivers/gpu/drm/bridge/chipone-icn6211.c
index d205e755e5..82d23e4df0 100644
--- a/drivers/gpu/drm/bridge/chipone-icn6211.c
+++ b/drivers/gpu/drm/bridge/chipone-icn6211.c
@@ -197,7 +197,7 @@ static const struct regmap_config chipone_regmap_config = {
.val_bits = 8,
.rd_table = &chipone_dsi_readable_table,
.wr_table = &chipone_dsi_writeable_table,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
.max_register = MIPI_ATE_STATUS(1),
};
diff --git a/drivers/gpu/drm/bridge/imx/Kconfig b/drivers/gpu/drm/bridge/imx/Kconfig
index 9fae28db6a..5a4f3d5850 100644
--- a/drivers/gpu/drm/bridge/imx/Kconfig
+++ b/drivers/gpu/drm/bridge/imx/Kconfig
@@ -49,4 +49,15 @@ config DRM_IMX8QXP_PIXEL_LINK_TO_DPI
Choose this to enable pixel link to display pixel interface(PXL2DPI)
found in Freescale i.MX8qxp processor.
+config DRM_IMX93_MIPI_DSI
+ tristate "Freescale i.MX93 specific extensions for Synopsys DW MIPI DSI"
+ depends on OF
+ depends on COMMON_CLK
+ select DRM_DW_MIPI_DSI
+ select GENERIC_PHY
+ select GENERIC_PHY_MIPI_DPHY
+ help
+ Choose this to enable MIPI DSI controller found in Freescale i.MX93
+ processor.
+
endif # ARCH_MXC || COMPILE_TEST
diff --git a/drivers/gpu/drm/bridge/imx/Makefile b/drivers/gpu/drm/bridge/imx/Makefile
index 8e2ebf3399..2b0c2e44aa 100644
--- a/drivers/gpu/drm/bridge/imx/Makefile
+++ b/drivers/gpu/drm/bridge/imx/Makefile
@@ -4,3 +4,4 @@ obj-$(CONFIG_DRM_IMX8QXP_LDB) += imx8qxp-ldb.o
obj-$(CONFIG_DRM_IMX8QXP_PIXEL_COMBINER) += imx8qxp-pixel-combiner.o
obj-$(CONFIG_DRM_IMX8QXP_PIXEL_LINK) += imx8qxp-pixel-link.o
obj-$(CONFIG_DRM_IMX8QXP_PIXEL_LINK_TO_DPI) += imx8qxp-pxl2dpi.o
+obj-$(CONFIG_DRM_IMX93_MIPI_DSI) += imx93-mipi-dsi.o
diff --git a/drivers/gpu/drm/bridge/imx/imx93-mipi-dsi.c b/drivers/gpu/drm/bridge/imx/imx93-mipi-dsi.c
new file mode 100644
index 0000000000..2347f8dd63
--- /dev/null
+++ b/drivers/gpu/drm/bridge/imx/imx93-mipi-dsi.c
@@ -0,0 +1,917 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Copyright 2022,2023 NXP
+ */
+
+#include <linux/bitfield.h>
+#include <linux/bits.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/math.h>
+#include <linux/media-bus-format.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/phy/phy-mipi-dphy.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include <drm/bridge/dw_mipi_dsi.h>
+#include <drm/drm_bridge.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+
+/* DPHY PLL configuration registers */
+#define DSI_REG 0x4c
+#define CFGCLKFREQRANGE_MASK GENMASK(5, 0)
+#define CFGCLKFREQRANGE(x) FIELD_PREP(CFGCLKFREQRANGE_MASK, (x))
+#define CLKSEL_MASK GENMASK(7, 6)
+#define CLKSEL_STOP FIELD_PREP(CLKSEL_MASK, 0)
+#define CLKSEL_GEN FIELD_PREP(CLKSEL_MASK, 1)
+#define CLKSEL_EXT FIELD_PREP(CLKSEL_MASK, 2)
+#define HSFREQRANGE_MASK GENMASK(14, 8)
+#define HSFREQRANGE(x) FIELD_PREP(HSFREQRANGE_MASK, (x))
+#define UPDATE_PLL BIT(17)
+#define SHADOW_CLR BIT(18)
+#define CLK_EXT BIT(19)
+
+#define DSI_WRITE_REG0 0x50
+#define M_MASK GENMASK(9, 0)
+#define M(x) FIELD_PREP(M_MASK, ((x) - 2))
+#define N_MASK GENMASK(13, 10)
+#define N(x) FIELD_PREP(N_MASK, ((x) - 1))
+#define VCO_CTRL_MASK GENMASK(19, 14)
+#define VCO_CTRL(x) FIELD_PREP(VCO_CTRL_MASK, (x))
+#define PROP_CTRL_MASK GENMASK(25, 20)
+#define PROP_CTRL(x) FIELD_PREP(PROP_CTRL_MASK, (x))
+#define INT_CTRL_MASK GENMASK(31, 26)
+#define INT_CTRL(x) FIELD_PREP(INT_CTRL_MASK, (x))
+
+#define DSI_WRITE_REG1 0x54
+#define GMP_CTRL_MASK GENMASK(1, 0)
+#define GMP_CTRL(x) FIELD_PREP(GMP_CTRL_MASK, (x))
+#define CPBIAS_CTRL_MASK GENMASK(8, 2)
+#define CPBIAS_CTRL(x) FIELD_PREP(CPBIAS_CTRL_MASK, (x))
+#define PLL_SHADOW_CTRL BIT(9)
+
+/* display mux control register */
+#define DISPLAY_MUX 0x60
+#define MIPI_DSI_RGB666_MAP_CFG GENMASK(7, 6)
+#define RGB666_CONFIG1 FIELD_PREP(MIPI_DSI_RGB666_MAP_CFG, 0)
+#define RGB666_CONFIG2 FIELD_PREP(MIPI_DSI_RGB666_MAP_CFG, 1)
+#define MIPI_DSI_RGB565_MAP_CFG GENMASK(5, 4)
+#define RGB565_CONFIG1 FIELD_PREP(MIPI_DSI_RGB565_MAP_CFG, 0)
+#define RGB565_CONFIG2 FIELD_PREP(MIPI_DSI_RGB565_MAP_CFG, 1)
+#define RGB565_CONFIG3 FIELD_PREP(MIPI_DSI_RGB565_MAP_CFG, 2)
+#define LCDIF_CROSS_LINE_PATTERN GENMASK(3, 0)
+#define RGB888_TO_RGB888 FIELD_PREP(LCDIF_CROSS_LINE_PATTERN, 0)
+#define RGB888_TO_RGB666 FIELD_PREP(LCDIF_CROSS_LINE_PATTERN, 6)
+#define RGB565_TO_RGB565 FIELD_PREP(LCDIF_CROSS_LINE_PATTERN, 7)
+
+#define MHZ(x) ((x) * 1000000UL)
+
+#define REF_CLK_RATE_MAX MHZ(64)
+#define REF_CLK_RATE_MIN MHZ(2)
+#define FOUT_MAX MHZ(1250)
+#define FOUT_MIN MHZ(40)
+#define FVCO_DIV_FACTOR MHZ(80)
+
+#define MBPS(x) ((x) * 1000000UL)
+
+#define DATA_RATE_MAX_SPEED MBPS(2500)
+#define DATA_RATE_MIN_SPEED MBPS(80)
+
+#define M_MAX 625UL
+#define M_MIN 64UL
+
+#define N_MAX 16U
+#define N_MIN 1U
+
+struct imx93_dsi {
+ struct device *dev;
+ struct regmap *regmap;
+ struct clk *clk_pixel;
+ struct clk *clk_ref;
+ struct clk *clk_cfg;
+ struct dw_mipi_dsi *dmd;
+ struct dw_mipi_dsi_plat_data pdata;
+ union phy_configure_opts phy_cfg;
+ unsigned long ref_clk_rate;
+ u32 format;
+};
+
+struct dphy_pll_cfg {
+ u32 m; /* PLL Feedback Multiplication Ratio */
+ u32 n; /* PLL Input Frequency Division Ratio */
+};
+
+struct dphy_pll_vco_prop {
+ unsigned long max_fout;
+ u8 vco_cntl;
+ u8 prop_cntl;
+};
+
+struct dphy_pll_hsfreqrange {
+ unsigned long max_mbps;
+ u8 hsfreqrange;
+};
+
+/* DPHY Databook Table 3-13 Charge-pump Programmability */
+static const struct dphy_pll_vco_prop vco_prop_map[] = {
+ { 55, 0x3f, 0x0d },
+ { 82, 0x37, 0x0d },
+ { 110, 0x2f, 0x0d },
+ { 165, 0x27, 0x0d },
+ { 220, 0x1f, 0x0d },
+ { 330, 0x17, 0x0d },
+ { 440, 0x0f, 0x0d },
+ { 660, 0x07, 0x0d },
+ { 1149, 0x03, 0x0d },
+ { 1152, 0x01, 0x0d },
+ { 1250, 0x01, 0x0e },
+};
+
+/* DPHY Databook Table 5-7 Frequency Ranges and Defaults */
+static const struct dphy_pll_hsfreqrange hsfreqrange_map[] = {
+ { 89, 0x00 },
+ { 99, 0x10 },
+ { 109, 0x20 },
+ { 119, 0x30 },
+ { 129, 0x01 },
+ { 139, 0x11 },
+ { 149, 0x21 },
+ { 159, 0x31 },
+ { 169, 0x02 },
+ { 179, 0x12 },
+ { 189, 0x22 },
+ { 204, 0x32 },
+ { 219, 0x03 },
+ { 234, 0x13 },
+ { 249, 0x23 },
+ { 274, 0x33 },
+ { 299, 0x04 },
+ { 324, 0x14 },
+ { 349, 0x25 },
+ { 399, 0x35 },
+ { 449, 0x05 },
+ { 499, 0x16 },
+ { 549, 0x26 },
+ { 599, 0x37 },
+ { 649, 0x07 },
+ { 699, 0x18 },
+ { 749, 0x28 },
+ { 799, 0x39 },
+ { 849, 0x09 },
+ { 899, 0x19 },
+ { 949, 0x29 },
+ { 999, 0x3a },
+ { 1049, 0x0a },
+ { 1099, 0x1a },
+ { 1149, 0x2a },
+ { 1199, 0x3b },
+ { 1249, 0x0b },
+ { 1299, 0x1b },
+ { 1349, 0x2b },
+ { 1399, 0x3c },
+ { 1449, 0x0c },
+ { 1499, 0x1c },
+ { 1549, 0x2c },
+ { 1599, 0x3d },
+ { 1649, 0x0d },
+ { 1699, 0x1d },
+ { 1749, 0x2e },
+ { 1799, 0x3e },
+ { 1849, 0x0e },
+ { 1899, 0x1e },
+ { 1949, 0x2f },
+ { 1999, 0x3f },
+ { 2049, 0x0f },
+ { 2099, 0x40 },
+ { 2149, 0x41 },
+ { 2199, 0x42 },
+ { 2249, 0x43 },
+ { 2299, 0x44 },
+ { 2349, 0x45 },
+ { 2399, 0x46 },
+ { 2449, 0x47 },
+ { 2499, 0x48 },
+ { 2500, 0x49 },
+};
+
+static void dphy_pll_write(struct imx93_dsi *dsi, unsigned int reg, u32 value)
+{
+ int ret;
+
+ ret = regmap_write(dsi->regmap, reg, value);
+ if (ret < 0)
+ dev_err(dsi->dev, "failed to write 0x%08x to pll reg 0x%x: %d\n",
+ value, reg, ret);
+}
+
+static inline unsigned long data_rate_to_fout(unsigned long data_rate)
+{
+ /* Fout is half of data rate */
+ return data_rate / 2;
+}
+
+static int
+dphy_pll_get_configure_from_opts(struct imx93_dsi *dsi,
+ struct phy_configure_opts_mipi_dphy *dphy_opts,
+ struct dphy_pll_cfg *cfg)
+{
+ struct device *dev = dsi->dev;
+ unsigned long fin = dsi->ref_clk_rate;
+ unsigned long fout;
+ unsigned long best_fout = 0;
+ unsigned int fvco_div;
+ unsigned int min_n, max_n, n, best_n = UINT_MAX;
+ unsigned long m, best_m = 0;
+ unsigned long min_delta = ULONG_MAX;
+ unsigned long delta;
+ u64 tmp;
+
+ if (dphy_opts->hs_clk_rate < DATA_RATE_MIN_SPEED ||
+ dphy_opts->hs_clk_rate > DATA_RATE_MAX_SPEED) {
+ dev_dbg(dev, "invalid data rate per lane: %lu\n",
+ dphy_opts->hs_clk_rate);
+ return -EINVAL;
+ }
+
+ fout = data_rate_to_fout(dphy_opts->hs_clk_rate);
+
+ /* DPHY Databook 3.3.6.1 Output Frequency */
+ /* Fout = Fvco / Fvco_div = (Fin * M) / (Fvco_div * N) */
+ /* Fvco_div could be 1/2/4/8 according to Fout range. */
+ fvco_div = 8UL / min(DIV_ROUND_UP(fout, FVCO_DIV_FACTOR), 8UL);
+
+ /* limitation: 2MHz <= Fin / N <= 8MHz */
+ min_n = DIV_ROUND_UP_ULL((u64)fin, MHZ(8));
+ max_n = DIV_ROUND_DOWN_ULL((u64)fin, MHZ(2));
+
+ /* clamp possible N(s) */
+ min_n = clamp(min_n, N_MIN, N_MAX);
+ max_n = clamp(max_n, N_MIN, N_MAX);
+
+ dev_dbg(dev, "Fout = %lu, Fvco_div = %u, n_range = [%u, %u]\n",
+ fout, fvco_div, min_n, max_n);
+
+ for (n = min_n; n <= max_n; n++) {
+ /* M = (Fout * N * Fvco_div) / Fin */
+ m = DIV_ROUND_CLOSEST(fout * n * fvco_div, fin);
+
+ /* check M range */
+ if (m < M_MIN || m > M_MAX)
+ continue;
+
+ /* calculate temporary Fout */
+ tmp = m * fin;
+ do_div(tmp, n * fvco_div);
+ if (tmp < FOUT_MIN || tmp > FOUT_MAX)
+ continue;
+
+ delta = abs(fout - tmp);
+ if (delta < min_delta) {
+ best_n = n;
+ best_m = m;
+ min_delta = delta;
+ best_fout = tmp;
+ }
+ }
+
+ if (best_fout) {
+ cfg->m = best_m;
+ cfg->n = best_n;
+ dev_dbg(dev, "best Fout = %lu, m = %u, n = %u\n",
+ best_fout, cfg->m, cfg->n);
+ } else {
+ dev_dbg(dev, "failed to find best Fout\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void dphy_pll_clear_shadow(struct imx93_dsi *dsi)
+{
+ /* Reference DPHY Databook Figure 3-3 Initialization Timing Diagram. */
+ /* Select clock generation first. */
+ dphy_pll_write(dsi, DSI_REG, CLKSEL_GEN);
+
+ /* Clear shadow after clock selection is done a while. */
+ fsleep(1);
+ dphy_pll_write(dsi, DSI_REG, CLKSEL_GEN | SHADOW_CLR);
+
+ /* A minimum pulse of 5ns on shadow_clear signal. */
+ fsleep(1);
+ dphy_pll_write(dsi, DSI_REG, CLKSEL_GEN);
+}
+
+static unsigned long dphy_pll_get_cfgclkrange(struct imx93_dsi *dsi)
+{
+ /*
+ * DPHY Databook Table 4-4 System Control Signals mentions an equation
+ * for cfgclkfreqrange[5:0].
+ */
+ return (clk_get_rate(dsi->clk_cfg) / MHZ(1) - 17) * 4;
+}
+
+static u8
+dphy_pll_get_hsfreqrange(struct phy_configure_opts_mipi_dphy *dphy_opts)
+{
+ unsigned long mbps = dphy_opts->hs_clk_rate / MHZ(1);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(hsfreqrange_map); i++)
+ if (mbps <= hsfreqrange_map[i].max_mbps)
+ return hsfreqrange_map[i].hsfreqrange;
+
+ return 0;
+}
+
+static u8 dphy_pll_get_vco(struct phy_configure_opts_mipi_dphy *dphy_opts)
+{
+ unsigned long fout = data_rate_to_fout(dphy_opts->hs_clk_rate) / MHZ(1);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(vco_prop_map); i++)
+ if (fout <= vco_prop_map[i].max_fout)
+ return vco_prop_map[i].vco_cntl;
+
+ return 0;
+}
+
+static u8 dphy_pll_get_prop(struct phy_configure_opts_mipi_dphy *dphy_opts)
+{
+ unsigned long fout = data_rate_to_fout(dphy_opts->hs_clk_rate) / MHZ(1);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(vco_prop_map); i++)
+ if (fout <= vco_prop_map[i].max_fout)
+ return vco_prop_map[i].prop_cntl;
+
+ return 0;
+}
+
+static int dphy_pll_update(struct imx93_dsi *dsi)
+{
+ int ret;
+
+ ret = regmap_update_bits(dsi->regmap, DSI_REG, UPDATE_PLL, UPDATE_PLL);
+ if (ret < 0) {
+ dev_err(dsi->dev, "failed to set UPDATE_PLL: %d\n", ret);
+ return ret;
+ }
+
+ /*
+ * The updatepll signal should be asserted for a minimum of four clkin
+ * cycles, according to DPHY Databook Figure 3-3 Initialization Timing
+ * Diagram.
+ */
+ fsleep(10);
+
+ ret = regmap_update_bits(dsi->regmap, DSI_REG, UPDATE_PLL, 0);
+ if (ret < 0) {
+ dev_err(dsi->dev, "failed to clear UPDATE_PLL: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int dphy_pll_configure(struct imx93_dsi *dsi, union phy_configure_opts *opts)
+{
+ struct dphy_pll_cfg cfg = { 0 };
+ u32 val;
+ int ret;
+
+ ret = dphy_pll_get_configure_from_opts(dsi, &opts->mipi_dphy, &cfg);
+ if (ret) {
+ dev_err(dsi->dev, "failed to get phy pll cfg %d\n", ret);
+ return ret;
+ }
+
+ dphy_pll_clear_shadow(dsi);
+
+ /* DSI_REG */
+ val = CLKSEL_GEN |
+ CFGCLKFREQRANGE(dphy_pll_get_cfgclkrange(dsi)) |
+ HSFREQRANGE(dphy_pll_get_hsfreqrange(&opts->mipi_dphy));
+ dphy_pll_write(dsi, DSI_REG, val);
+
+ /* DSI_WRITE_REG0 */
+ val = M(cfg.m) | N(cfg.n) | INT_CTRL(0) |
+ VCO_CTRL(dphy_pll_get_vco(&opts->mipi_dphy)) |
+ PROP_CTRL(dphy_pll_get_prop(&opts->mipi_dphy));
+ dphy_pll_write(dsi, DSI_WRITE_REG0, val);
+
+ /* DSI_WRITE_REG1 */
+ dphy_pll_write(dsi, DSI_WRITE_REG1, GMP_CTRL(1) | CPBIAS_CTRL(0x10));
+
+ ret = clk_prepare_enable(dsi->clk_ref);
+ if (ret < 0) {
+ dev_err(dsi->dev, "failed to enable ref clock: %d\n", ret);
+ return ret;
+ }
+
+ /*
+ * At least 10 refclk cycles are required before updatePLL assertion,
+ * according to DPHY Databook Figure 3-3 Initialization Timing Diagram.
+ */
+ fsleep(10);
+
+ ret = dphy_pll_update(dsi);
+ if (ret < 0) {
+ clk_disable_unprepare(dsi->clk_ref);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void dphy_pll_clear_reg(struct imx93_dsi *dsi)
+{
+ dphy_pll_write(dsi, DSI_REG, 0);
+ dphy_pll_write(dsi, DSI_WRITE_REG0, 0);
+ dphy_pll_write(dsi, DSI_WRITE_REG1, 0);
+}
+
+static int dphy_pll_init(struct imx93_dsi *dsi)
+{
+ int ret;
+
+ ret = clk_prepare_enable(dsi->clk_cfg);
+ if (ret < 0) {
+ dev_err(dsi->dev, "failed to enable config clock: %d\n", ret);
+ return ret;
+ }
+
+ dphy_pll_clear_reg(dsi);
+
+ return 0;
+}
+
+static void dphy_pll_uninit(struct imx93_dsi *dsi)
+{
+ dphy_pll_clear_reg(dsi);
+ clk_disable_unprepare(dsi->clk_cfg);
+}
+
+static void dphy_pll_power_off(struct imx93_dsi *dsi)
+{
+ dphy_pll_clear_reg(dsi);
+ clk_disable_unprepare(dsi->clk_ref);
+}
+
+static int imx93_dsi_get_phy_configure_opts(struct imx93_dsi *dsi,
+ const struct drm_display_mode *mode,
+ union phy_configure_opts *phy_cfg,
+ u32 lanes, u32 format)
+{
+ struct device *dev = dsi->dev;
+ int bpp;
+ int ret;
+
+ bpp = mipi_dsi_pixel_format_to_bpp(format);
+ if (bpp < 0) {
+ dev_dbg(dev, "failed to get bpp for pixel format %d\n", format);
+ return -EINVAL;
+ }
+
+ ret = phy_mipi_dphy_get_default_config(mode->clock * MSEC_PER_SEC, bpp,
+ lanes, &phy_cfg->mipi_dphy);
+ if (ret < 0) {
+ dev_dbg(dev, "failed to get default phy cfg %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static enum drm_mode_status
+imx93_dsi_validate_mode(struct imx93_dsi *dsi, const struct drm_display_mode *mode)
+{
+ struct drm_bridge *bridge = dw_mipi_dsi_get_bridge(dsi->dmd);
+
+ /* Get the last bridge */
+ while (drm_bridge_get_next_bridge(bridge))
+ bridge = drm_bridge_get_next_bridge(bridge);
+
+ if ((bridge->ops & DRM_BRIDGE_OP_DETECT) &&
+ (bridge->ops & DRM_BRIDGE_OP_EDID)) {
+ unsigned long pixel_clock_rate = mode->clock * 1000;
+ unsigned long rounded_rate;
+
+ /* Allow +/-0.5% pixel clock rate deviation */
+ rounded_rate = clk_round_rate(dsi->clk_pixel, pixel_clock_rate);
+ if (rounded_rate < pixel_clock_rate * 995 / 1000 ||
+ rounded_rate > pixel_clock_rate * 1005 / 1000) {
+ dev_dbg(dsi->dev, "failed to round clock for mode " DRM_MODE_FMT "\n",
+ DRM_MODE_ARG(mode));
+ return MODE_NOCLOCK;
+ }
+ }
+
+ return MODE_OK;
+}
+
+static enum drm_mode_status
+imx93_dsi_validate_phy(struct imx93_dsi *dsi, const struct drm_display_mode *mode,
+ unsigned long mode_flags, u32 lanes, u32 format)
+{
+ union phy_configure_opts phy_cfg;
+ struct dphy_pll_cfg cfg = { 0 };
+ struct device *dev = dsi->dev;
+ int ret;
+
+ ret = imx93_dsi_get_phy_configure_opts(dsi, mode, &phy_cfg, lanes,
+ format);
+ if (ret < 0) {
+ dev_dbg(dev, "failed to get phy cfg opts %d\n", ret);
+ return MODE_ERROR;
+ }
+
+ ret = dphy_pll_get_configure_from_opts(dsi, &phy_cfg.mipi_dphy, &cfg);
+ if (ret < 0) {
+ dev_dbg(dev, "failed to get phy pll cfg %d\n", ret);
+ return MODE_NOCLOCK;
+ }
+
+ return MODE_OK;
+}
+
+static enum drm_mode_status
+imx93_dsi_mode_valid(void *priv_data, const struct drm_display_mode *mode,
+ unsigned long mode_flags, u32 lanes, u32 format)
+{
+ struct imx93_dsi *dsi = priv_data;
+ struct device *dev = dsi->dev;
+ enum drm_mode_status ret;
+
+ ret = imx93_dsi_validate_mode(dsi, mode);
+ if (ret != MODE_OK) {
+ dev_dbg(dev, "failed to validate mode " DRM_MODE_FMT "\n",
+ DRM_MODE_ARG(mode));
+ return ret;
+ }
+
+ ret = imx93_dsi_validate_phy(dsi, mode, mode_flags, lanes, format);
+ if (ret != MODE_OK) {
+ dev_dbg(dev, "failed to validate phy for mode " DRM_MODE_FMT "\n",
+ DRM_MODE_ARG(mode));
+ return ret;
+ }
+
+ return MODE_OK;
+}
+
+static bool imx93_dsi_mode_fixup(void *priv_data,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct imx93_dsi *dsi = priv_data;
+ unsigned long pixel_clock_rate;
+ unsigned long rounded_rate;
+
+ pixel_clock_rate = mode->clock * 1000;
+ rounded_rate = clk_round_rate(dsi->clk_pixel, pixel_clock_rate);
+
+ memcpy(adjusted_mode, mode, sizeof(*mode));
+ adjusted_mode->clock = rounded_rate / 1000;
+
+ dev_dbg(dsi->dev, "adj clock %d for mode " DRM_MODE_FMT "\n",
+ adjusted_mode->clock, DRM_MODE_ARG(mode));
+
+ return true;
+}
+
+static u32 *imx93_dsi_get_input_bus_fmts(void *priv_data,
+ struct drm_bridge *bridge,
+ struct drm_bridge_state *bridge_state,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state,
+ u32 output_fmt,
+ unsigned int *num_input_fmts)
+{
+ u32 *input_fmts, input_fmt;
+
+ *num_input_fmts = 0;
+
+ switch (output_fmt) {
+ case MEDIA_BUS_FMT_RGB888_1X24:
+ case MEDIA_BUS_FMT_RGB666_1X18:
+ case MEDIA_BUS_FMT_FIXED:
+ input_fmt = MEDIA_BUS_FMT_RGB888_1X24;
+ break;
+ case MEDIA_BUS_FMT_RGB565_1X16:
+ input_fmt = output_fmt;
+ break;
+ default:
+ return NULL;
+ }
+
+ input_fmts = kmalloc(sizeof(*input_fmts), GFP_KERNEL);
+ if (!input_fmts)
+ return NULL;
+ input_fmts[0] = input_fmt;
+ *num_input_fmts = 1;
+
+ return input_fmts;
+}
+
+static int imx93_dsi_phy_init(void *priv_data)
+{
+ struct imx93_dsi *dsi = priv_data;
+ unsigned int fmt = 0;
+ int ret;
+
+ switch (dsi->format) {
+ case MIPI_DSI_FMT_RGB888:
+ fmt = RGB888_TO_RGB888;
+ break;
+ case MIPI_DSI_FMT_RGB666:
+ fmt = RGB888_TO_RGB666;
+ regmap_update_bits(dsi->regmap, DISPLAY_MUX,
+ MIPI_DSI_RGB666_MAP_CFG, RGB666_CONFIG2);
+ break;
+ case MIPI_DSI_FMT_RGB666_PACKED:
+ fmt = RGB888_TO_RGB666;
+ regmap_update_bits(dsi->regmap, DISPLAY_MUX,
+ MIPI_DSI_RGB666_MAP_CFG, RGB666_CONFIG1);
+ break;
+ case MIPI_DSI_FMT_RGB565:
+ fmt = RGB565_TO_RGB565;
+ regmap_update_bits(dsi->regmap, DISPLAY_MUX,
+ MIPI_DSI_RGB565_MAP_CFG, RGB565_CONFIG1);
+ break;
+ }
+
+ regmap_update_bits(dsi->regmap, DISPLAY_MUX, LCDIF_CROSS_LINE_PATTERN, fmt);
+
+ ret = dphy_pll_init(dsi);
+ if (ret < 0) {
+ dev_err(dsi->dev, "failed to init phy pll: %d\n", ret);
+ return ret;
+ }
+
+ ret = dphy_pll_configure(dsi, &dsi->phy_cfg);
+ if (ret < 0) {
+ dev_err(dsi->dev, "failed to configure phy pll: %d\n", ret);
+ dphy_pll_uninit(dsi);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void imx93_dsi_phy_power_off(void *priv_data)
+{
+ struct imx93_dsi *dsi = priv_data;
+
+ dphy_pll_power_off(dsi);
+ dphy_pll_uninit(dsi);
+}
+
+static int
+imx93_dsi_get_lane_mbps(void *priv_data, const struct drm_display_mode *mode,
+ unsigned long mode_flags, u32 lanes, u32 format,
+ unsigned int *lane_mbps)
+{
+ struct imx93_dsi *dsi = priv_data;
+ union phy_configure_opts phy_cfg;
+ struct device *dev = dsi->dev;
+ int ret;
+
+ ret = imx93_dsi_get_phy_configure_opts(dsi, mode, &phy_cfg, lanes,
+ format);
+ if (ret < 0) {
+ dev_dbg(dev, "failed to get phy cfg opts %d\n", ret);
+ return ret;
+ }
+
+ *lane_mbps = DIV_ROUND_UP(phy_cfg.mipi_dphy.hs_clk_rate, USEC_PER_SEC);
+
+ memcpy(&dsi->phy_cfg, &phy_cfg, sizeof(phy_cfg));
+
+ dev_dbg(dev, "get lane_mbps %u for mode " DRM_MODE_FMT "\n",
+ *lane_mbps, DRM_MODE_ARG(mode));
+
+ return 0;
+}
+
+/* High-Speed Transition Times */
+struct hstt {
+ unsigned int maxfreq;
+ struct dw_mipi_dsi_dphy_timing timing;
+};
+
+#define HSTT(_maxfreq, _c_lp2hs, _c_hs2lp, _d_lp2hs, _d_hs2lp) \
+{ \
+ .maxfreq = (_maxfreq), \
+ .timing = { \
+ .clk_lp2hs = (_c_lp2hs), \
+ .clk_hs2lp = (_c_hs2lp), \
+ .data_lp2hs = (_d_lp2hs), \
+ .data_hs2lp = (_d_hs2lp), \
+ } \
+}
+
+/* DPHY Databook Table A-4 High-Speed Transition Times */
+static const struct hstt hstt_table[] = {
+ HSTT(80, 21, 17, 15, 10),
+ HSTT(90, 23, 17, 16, 10),
+ HSTT(100, 22, 17, 16, 10),
+ HSTT(110, 25, 18, 17, 11),
+ HSTT(120, 26, 20, 18, 11),
+ HSTT(130, 27, 19, 19, 11),
+ HSTT(140, 27, 19, 19, 11),
+ HSTT(150, 28, 20, 20, 12),
+ HSTT(160, 30, 21, 22, 13),
+ HSTT(170, 30, 21, 23, 13),
+ HSTT(180, 31, 21, 23, 13),
+ HSTT(190, 32, 22, 24, 13),
+ HSTT(205, 35, 22, 25, 13),
+ HSTT(220, 37, 26, 27, 15),
+ HSTT(235, 38, 28, 27, 16),
+ HSTT(250, 41, 29, 30, 17),
+ HSTT(275, 43, 29, 32, 18),
+ HSTT(300, 45, 32, 35, 19),
+ HSTT(325, 48, 33, 36, 18),
+ HSTT(350, 51, 35, 40, 20),
+ HSTT(400, 59, 37, 44, 21),
+ HSTT(450, 65, 40, 49, 23),
+ HSTT(500, 71, 41, 54, 24),
+ HSTT(550, 77, 44, 57, 26),
+ HSTT(600, 82, 46, 64, 27),
+ HSTT(650, 87, 48, 67, 28),
+ HSTT(700, 94, 52, 71, 29),
+ HSTT(750, 99, 52, 75, 31),
+ HSTT(800, 105, 55, 82, 32),
+ HSTT(850, 110, 58, 85, 32),
+ HSTT(900, 115, 58, 88, 35),
+ HSTT(950, 120, 62, 93, 36),
+ HSTT(1000, 128, 63, 99, 38),
+ HSTT(1050, 132, 65, 102, 38),
+ HSTT(1100, 138, 67, 106, 39),
+ HSTT(1150, 146, 69, 112, 42),
+ HSTT(1200, 151, 71, 117, 43),
+ HSTT(1250, 153, 74, 120, 45),
+ HSTT(1300, 160, 73, 124, 46),
+ HSTT(1350, 165, 76, 130, 47),
+ HSTT(1400, 172, 78, 134, 49),
+ HSTT(1450, 177, 80, 138, 49),
+ HSTT(1500, 183, 81, 143, 52),
+ HSTT(1550, 191, 84, 147, 52),
+ HSTT(1600, 194, 85, 152, 52),
+ HSTT(1650, 201, 86, 155, 53),
+ HSTT(1700, 208, 88, 161, 53),
+ HSTT(1750, 212, 89, 165, 53),
+ HSTT(1800, 220, 90, 171, 54),
+ HSTT(1850, 223, 92, 175, 54),
+ HSTT(1900, 231, 91, 180, 55),
+ HSTT(1950, 236, 95, 185, 56),
+ HSTT(2000, 243, 97, 190, 56),
+ HSTT(2050, 248, 99, 194, 58),
+ HSTT(2100, 252, 100, 199, 59),
+ HSTT(2150, 259, 102, 204, 61),
+ HSTT(2200, 266, 105, 210, 62),
+ HSTT(2250, 269, 109, 213, 63),
+ HSTT(2300, 272, 109, 217, 65),
+ HSTT(2350, 281, 112, 225, 66),
+ HSTT(2400, 283, 115, 226, 66),
+ HSTT(2450, 282, 115, 226, 67),
+ HSTT(2500, 281, 118, 227, 67),
+};
+
+static int imx93_dsi_phy_get_timing(void *priv_data, unsigned int lane_mbps,
+ struct dw_mipi_dsi_dphy_timing *timing)
+{
+ struct imx93_dsi *dsi = priv_data;
+ struct device *dev = dsi->dev;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(hstt_table); i++)
+ if (lane_mbps <= hstt_table[i].maxfreq)
+ break;
+
+ if (i == ARRAY_SIZE(hstt_table)) {
+ dev_err(dev, "failed to get phy timing for lane_mbps %u\n",
+ lane_mbps);
+ return -EINVAL;
+ }
+
+ *timing = hstt_table[i].timing;
+
+ dev_dbg(dev, "get phy timing for %u <= %u (lane_mbps)\n",
+ lane_mbps, hstt_table[i].maxfreq);
+
+ return 0;
+}
+
+static const struct dw_mipi_dsi_phy_ops imx93_dsi_phy_ops = {
+ .init = imx93_dsi_phy_init,
+ .power_off = imx93_dsi_phy_power_off,
+ .get_lane_mbps = imx93_dsi_get_lane_mbps,
+ .get_timing = imx93_dsi_phy_get_timing,
+};
+
+static int imx93_dsi_host_attach(void *priv_data, struct mipi_dsi_device *device)
+{
+ struct imx93_dsi *dsi = priv_data;
+
+ dsi->format = device->format;
+
+ return 0;
+}
+
+static const struct dw_mipi_dsi_host_ops imx93_dsi_host_ops = {
+ .attach = imx93_dsi_host_attach,
+};
+
+static int imx93_dsi_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct imx93_dsi *dsi;
+ int ret;
+
+ dsi = devm_kzalloc(dev, sizeof(*dsi), GFP_KERNEL);
+ if (!dsi)
+ return -ENOMEM;
+
+ dsi->regmap = syscon_regmap_lookup_by_phandle(np, "fsl,media-blk-ctrl");
+ if (IS_ERR(dsi->regmap)) {
+ ret = PTR_ERR(dsi->regmap);
+ dev_err(dev, "failed to get block ctrl regmap: %d\n", ret);
+ return ret;
+ }
+
+ dsi->clk_pixel = devm_clk_get(dev, "pix");
+ if (IS_ERR(dsi->clk_pixel))
+ return dev_err_probe(dev, PTR_ERR(dsi->clk_pixel),
+ "failed to get pixel clock\n");
+
+ dsi->clk_cfg = devm_clk_get(dev, "phy_cfg");
+ if (IS_ERR(dsi->clk_cfg))
+ return dev_err_probe(dev, PTR_ERR(dsi->clk_cfg),
+ "failed to get phy cfg clock\n");
+
+ dsi->clk_ref = devm_clk_get(dev, "phy_ref");
+ if (IS_ERR(dsi->clk_ref))
+ return dev_err_probe(dev, PTR_ERR(dsi->clk_ref),
+ "failed to get phy ref clock\n");
+
+ dsi->ref_clk_rate = clk_get_rate(dsi->clk_ref);
+ if (dsi->ref_clk_rate < REF_CLK_RATE_MIN ||
+ dsi->ref_clk_rate > REF_CLK_RATE_MAX) {
+ dev_err(dev, "invalid phy ref clock rate %lu\n",
+ dsi->ref_clk_rate);
+ return -EINVAL;
+ }
+ dev_dbg(dev, "phy ref clock rate: %lu\n", dsi->ref_clk_rate);
+
+ dsi->dev = dev;
+ dsi->pdata.max_data_lanes = 4;
+ dsi->pdata.mode_valid = imx93_dsi_mode_valid;
+ dsi->pdata.mode_fixup = imx93_dsi_mode_fixup;
+ dsi->pdata.get_input_bus_fmts = imx93_dsi_get_input_bus_fmts;
+ dsi->pdata.phy_ops = &imx93_dsi_phy_ops;
+ dsi->pdata.host_ops = &imx93_dsi_host_ops;
+ dsi->pdata.priv_data = dsi;
+ platform_set_drvdata(pdev, dsi);
+
+ dsi->dmd = dw_mipi_dsi_probe(pdev, &dsi->pdata);
+ if (IS_ERR(dsi->dmd))
+ return dev_err_probe(dev, PTR_ERR(dsi->dmd),
+ "failed to probe dw_mipi_dsi\n");
+
+ return 0;
+}
+
+static void imx93_dsi_remove(struct platform_device *pdev)
+{
+ struct imx93_dsi *dsi = platform_get_drvdata(pdev);
+
+ dw_mipi_dsi_remove(dsi->dmd);
+}
+
+static const struct of_device_id imx93_dsi_dt_ids[] = {
+ { .compatible = "fsl,imx93-mipi-dsi", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx93_dsi_dt_ids);
+
+static struct platform_driver imx93_dsi_driver = {
+ .probe = imx93_dsi_probe,
+ .remove_new = imx93_dsi_remove,
+ .driver = {
+ .of_match_table = imx93_dsi_dt_ids,
+ .name = "imx93_mipi_dsi",
+ },
+};
+module_platform_driver(imx93_dsi_driver);
+
+MODULE_DESCRIPTION("Freescale i.MX93 MIPI DSI driver");
+MODULE_AUTHOR("Liu Ying <victor.liu@nxp.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c
index 8f5846b76d..1cf3fb1f13 100644
--- a/drivers/gpu/drm/bridge/ite-it66121.c
+++ b/drivers/gpu/drm/bridge/ite-it66121.c
@@ -1505,7 +1505,6 @@ static const char * const it66121_supplies[] = {
static int it66121_probe(struct i2c_client *client)
{
- const struct i2c_device_id *id = i2c_client_get_device_id(client);
u32 revision_id, vendor_ids[2] = { 0 }, device_ids[2] = { 0 };
struct device_node *ep;
int ret;
@@ -1527,7 +1526,7 @@ static int it66121_probe(struct i2c_client *client)
ctx->dev = dev;
ctx->client = client;
- ctx->info = (const struct it66121_chip_info *) id->driver_data;
+ ctx->info = i2c_get_match_data(client);
of_property_read_u32(ep, "bus-width", &ctx->bus_width);
of_node_put(ep);
@@ -1613,13 +1612,6 @@ static void it66121_remove(struct i2c_client *client)
mutex_destroy(&ctx->lock);
}
-static const struct of_device_id it66121_dt_match[] = {
- { .compatible = "ite,it66121" },
- { .compatible = "ite,it6610" },
- { }
-};
-MODULE_DEVICE_TABLE(of, it66121_dt_match);
-
static const struct it66121_chip_info it66121_chip_info = {
.id = ID_IT66121,
.vid = 0x4954,
@@ -1632,6 +1624,13 @@ static const struct it66121_chip_info it6610_chip_info = {
.pid = 0x0611,
};
+static const struct of_device_id it66121_dt_match[] = {
+ { .compatible = "ite,it66121", &it66121_chip_info },
+ { .compatible = "ite,it6610", &it6610_chip_info },
+ { }
+};
+MODULE_DEVICE_TABLE(of, it66121_dt_match);
+
static const struct i2c_device_id it66121_id[] = {
{ "it66121", (kernel_ulong_t) &it66121_chip_info },
{ "it6610", (kernel_ulong_t) &it6610_chip_info },
diff --git a/drivers/gpu/drm/bridge/lontium-lt9211.c b/drivers/gpu/drm/bridge/lontium-lt9211.c
index 4d404f5ef8..c8881796fb 100644
--- a/drivers/gpu/drm/bridge/lontium-lt9211.c
+++ b/drivers/gpu/drm/bridge/lontium-lt9211.c
@@ -89,7 +89,7 @@ static const struct regmap_config lt9211_regmap_config = {
.volatile_table = &lt9211_rw_table,
.ranges = &lt9211_range,
.num_ranges = 1,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
.max_register = 0xda00,
};
diff --git a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
index 6f33bb0dd3..e971b75e90 100644
--- a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
+++ b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
@@ -296,7 +296,7 @@ static int lt9611uxc_connector_get_modes(struct drm_connector *connector)
unsigned int count;
struct edid *edid;
- edid = lt9611uxc->bridge.funcs->get_edid(&lt9611uxc->bridge, connector);
+ edid = drm_bridge_get_edid(&lt9611uxc->bridge, connector);
drm_connector_update_edid_property(connector, edid);
count = drm_add_edid_modes(connector, edid);
kfree(edid);
diff --git a/drivers/gpu/drm/bridge/lvds-codec.c b/drivers/gpu/drm/bridge/lvds-codec.c
index 8c5668dca0..991732c4b6 100644
--- a/drivers/gpu/drm/bridge/lvds-codec.c
+++ b/drivers/gpu/drm/bridge/lvds-codec.c
@@ -5,6 +5,7 @@
*/
#include <linux/gpio/consumer.h>
+#include <linux/media-bus-format.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_graph.h>
@@ -71,12 +72,6 @@ static void lvds_codec_disable(struct drm_bridge *bridge)
"Failed to disable regulator \"vcc\": %d\n", ret);
}
-static const struct drm_bridge_funcs funcs = {
- .attach = lvds_codec_attach,
- .enable = lvds_codec_enable,
- .disable = lvds_codec_disable,
-};
-
#define MAX_INPUT_SEL_FORMATS 1
static u32 *
lvds_codec_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
@@ -102,7 +97,7 @@ lvds_codec_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
return input_fmts;
}
-static const struct drm_bridge_funcs funcs_decoder = {
+static const struct drm_bridge_funcs funcs = {
.attach = lvds_codec_attach,
.enable = lvds_codec_enable,
.disable = lvds_codec_disable,
@@ -184,8 +179,9 @@ static int lvds_codec_probe(struct platform_device *pdev)
return ret;
} else {
lvds_codec->bus_format = ret;
- lvds_codec->bridge.funcs = &funcs_decoder;
}
+ } else {
+ lvds_codec->bus_format = MEDIA_BUS_FMT_RGB888_1X24;
}
/*
diff --git a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
index 460db3c8a0..e93083bbec 100644
--- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
+++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
@@ -65,12 +65,11 @@ struct ge_b850v3_lvds {
static struct ge_b850v3_lvds *ge_b850v3_lvds_ptr;
-static u8 *stdp2690_get_edid(struct i2c_client *client)
+static int stdp2690_read_block(void *context, u8 *buf, unsigned int block, size_t len)
{
+ struct i2c_client *client = context;
struct i2c_adapter *adapter = client->adapter;
- unsigned char start = 0x00;
- unsigned int total_size;
- u8 *block = kmalloc(EDID_LENGTH, GFP_KERNEL);
+ unsigned char start = block * EDID_LENGTH;
struct i2c_msg msgs[] = {
{
@@ -81,53 +80,15 @@ static u8 *stdp2690_get_edid(struct i2c_client *client)
}, {
.addr = client->addr,
.flags = I2C_M_RD,
- .len = EDID_LENGTH,
- .buf = block,
+ .len = len,
+ .buf = buf,
}
};
- if (!block)
- return NULL;
+ if (i2c_transfer(adapter, msgs, 2) != 2)
+ return -1;
- if (i2c_transfer(adapter, msgs, 2) != 2) {
- DRM_ERROR("Unable to read EDID.\n");
- goto err;
- }
-
- if (!drm_edid_block_valid(block, 0, false, NULL)) {
- DRM_ERROR("Invalid EDID data\n");
- goto err;
- }
-
- total_size = (block[EDID_EXT_BLOCK_CNT] + 1) * EDID_LENGTH;
- if (total_size > EDID_LENGTH) {
- kfree(block);
- block = kmalloc(total_size, GFP_KERNEL);
- if (!block)
- return NULL;
-
- /* Yes, read the entire buffer, and do not skip the first
- * EDID_LENGTH bytes.
- */
- start = 0x00;
- msgs[1].len = total_size;
- msgs[1].buf = block;
-
- if (i2c_transfer(adapter, msgs, 2) != 2) {
- DRM_ERROR("Unable to read EDID extension blocks.\n");
- goto err;
- }
- if (!drm_edid_block_valid(block, 1, false, NULL)) {
- DRM_ERROR("Invalid EDID data\n");
- goto err;
- }
- }
-
- return block;
-
-err:
- kfree(block);
- return NULL;
+ return 0;
}
static struct edid *ge_b850v3_lvds_get_edid(struct drm_bridge *bridge,
@@ -137,7 +98,7 @@ static struct edid *ge_b850v3_lvds_get_edid(struct drm_bridge *bridge,
client = ge_b850v3_lvds_ptr->stdp2690_i2c;
- return (struct edid *)stdp2690_get_edid(client);
+ return drm_do_get_edid(connector, stdp2690_read_block, client);
}
static int ge_b850v3_lvds_get_modes(struct drm_connector *connector)
diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c
index 9316384b44..7f41525f7a 100644
--- a/drivers/gpu/drm/bridge/panel.c
+++ b/drivers/gpu/drm/bridge/panel.c
@@ -302,9 +302,7 @@ struct drm_bridge *drm_panel_bridge_add_typed(struct drm_panel *panel,
panel_bridge->panel = panel;
panel_bridge->bridge.funcs = &panel_bridge_bridge_funcs;
-#ifdef CONFIG_OF
panel_bridge->bridge.of_node = panel->dev->of_node;
-#endif
panel_bridge->bridge.ops = DRM_BRIDGE_OP_MODES;
panel_bridge->bridge.type = connector_type;
diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c
index f24666b481..63a1a0c88b 100644
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@@ -410,6 +410,8 @@ static const struct samsung_dsim_driver_data exynos3_dsi_driver_data = {
.num_bits_resol = 11,
.pll_p_offset = 13,
.reg_values = reg_values,
+ .pll_fin_min = 6,
+ .pll_fin_max = 12,
.m_min = 41,
.m_max = 125,
.min_freq = 500,
@@ -427,6 +429,8 @@ static const struct samsung_dsim_driver_data exynos4_dsi_driver_data = {
.num_bits_resol = 11,
.pll_p_offset = 13,
.reg_values = reg_values,
+ .pll_fin_min = 6,
+ .pll_fin_max = 12,
.m_min = 41,
.m_max = 125,
.min_freq = 500,
@@ -442,6 +446,8 @@ static const struct samsung_dsim_driver_data exynos5_dsi_driver_data = {
.num_bits_resol = 11,
.pll_p_offset = 13,
.reg_values = reg_values,
+ .pll_fin_min = 6,
+ .pll_fin_max = 12,
.m_min = 41,
.m_max = 125,
.min_freq = 500,
@@ -457,6 +463,8 @@ static const struct samsung_dsim_driver_data exynos5433_dsi_driver_data = {
.num_bits_resol = 12,
.pll_p_offset = 13,
.reg_values = exynos5433_reg_values,
+ .pll_fin_min = 6,
+ .pll_fin_max = 12,
.m_min = 41,
.m_max = 125,
.min_freq = 500,
@@ -472,6 +480,8 @@ static const struct samsung_dsim_driver_data exynos5422_dsi_driver_data = {
.num_bits_resol = 12,
.pll_p_offset = 13,
.reg_values = exynos5422_reg_values,
+ .pll_fin_min = 6,
+ .pll_fin_max = 12,
.m_min = 41,
.m_max = 125,
.min_freq = 500,
@@ -491,6 +501,8 @@ static const struct samsung_dsim_driver_data imx8mm_dsi_driver_data = {
*/
.pll_p_offset = 14,
.reg_values = imx8mm_dsim_reg_values,
+ .pll_fin_min = 2,
+ .pll_fin_max = 30,
.m_min = 64,
.m_max = 1023,
.min_freq = 1050,
@@ -614,7 +626,23 @@ static unsigned long samsung_dsim_set_pll(struct samsung_dsim *dsi,
u16 m;
u32 reg;
- fin = dsi->pll_clk_rate;
+ if (dsi->pll_clk) {
+ /*
+ * Ensure that the reference clock is generated with a power of
+ * two divider from its parent, but close to the PLLs upper
+ * limit.
+ */
+ fin = clk_get_rate(clk_get_parent(dsi->pll_clk));
+ while (fin > driver_data->pll_fin_max * MHZ)
+ fin /= 2;
+ clk_set_rate(dsi->pll_clk, fin);
+
+ fin = clk_get_rate(dsi->pll_clk);
+ } else {
+ fin = dsi->pll_clk_rate;
+ }
+ dev_dbg(dsi->dev, "PLL ref clock freq %lu\n", fin);
+
fout = samsung_dsim_pll_find_pms(dsi, fin, freq, &p, &m, &s);
if (!fout) {
dev_err(dsi->dev,
@@ -956,10 +984,12 @@ static void samsung_dsim_set_display_mode(struct samsung_dsim *dsi)
u32 reg;
if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) {
- int byte_clk_khz = dsi->hs_clock / 1000 / 8;
- int hfp = (m->hsync_start - m->hdisplay) * byte_clk_khz / m->clock;
- int hbp = (m->htotal - m->hsync_end) * byte_clk_khz / m->clock;
- int hsa = (m->hsync_end - m->hsync_start) * byte_clk_khz / m->clock;
+ u64 byte_clk = dsi->hs_clock / 8;
+ u64 pix_clk = m->clock * 1000;
+
+ int hfp = DIV64_U64_ROUND_UP((m->hsync_start - m->hdisplay) * byte_clk, pix_clk);
+ int hbp = DIV64_U64_ROUND_UP((m->htotal - m->hsync_end) * byte_clk, pix_clk);
+ int hsa = DIV64_U64_ROUND_UP((m->hsync_end - m->hsync_start) * byte_clk, pix_clk);
/* remove packet overhead when possible */
hfp = max(hfp - 6, 0);
@@ -1700,7 +1730,10 @@ of_find_panel_or_bridge:
return ret;
}
- DRM_DEV_INFO(dev, "Attached %s device\n", device->name);
+ DRM_DEV_INFO(dev, "Attached %s device (lanes:%d bpp:%d mode-flags:0x%lx)\n",
+ device->name, device->lanes,
+ mipi_dsi_pixel_format_to_bpp(device->format),
+ device->mode_flags);
drm_bridge_add(&dsi->bridge);
@@ -1805,18 +1838,15 @@ static int samsung_dsim_parse_dt(struct samsung_dsim *dsi)
u32 lane_polarities[5] = { 0 };
struct device_node *endpoint;
int i, nr_lanes, ret;
- struct clk *pll_clk;
ret = samsung_dsim_of_read_u32(node, "samsung,pll-clock-frequency",
&dsi->pll_clk_rate, 1);
/* If it doesn't exist, read it from the clock instead of failing */
if (ret < 0) {
dev_dbg(dev, "Using sclk_mipi for pll clock frequency\n");
- pll_clk = devm_clk_get(dev, "sclk_mipi");
- if (!IS_ERR(pll_clk))
- dsi->pll_clk_rate = clk_get_rate(pll_clk);
- else
- return PTR_ERR(pll_clk);
+ dsi->pll_clk = devm_clk_get(dev, "sclk_mipi");
+ if (IS_ERR(dsi->pll_clk))
+ return PTR_ERR(dsi->pll_clk);
}
/* If it doesn't exist, use pixel clock instead of failing */
@@ -1977,7 +2007,7 @@ err_disable_runtime:
}
EXPORT_SYMBOL_GPL(samsung_dsim_probe);
-int samsung_dsim_remove(struct platform_device *pdev)
+void samsung_dsim_remove(struct platform_device *pdev)
{
struct samsung_dsim *dsi = platform_get_drvdata(pdev);
@@ -1985,8 +2015,6 @@ int samsung_dsim_remove(struct platform_device *pdev)
if (dsi->plat_data->host_ops && dsi->plat_data->host_ops->unregister_host)
dsi->plat_data->host_ops->unregister_host(dsi);
-
- return 0;
}
EXPORT_SYMBOL_GPL(samsung_dsim_remove);
@@ -2086,7 +2114,7 @@ MODULE_DEVICE_TABLE(of, samsung_dsim_of_match);
static struct platform_driver samsung_dsim_driver = {
.probe = samsung_dsim_probe,
- .remove = samsung_dsim_remove,
+ .remove_new = samsung_dsim_remove,
.driver = {
.name = "samsung-dsim",
.pm = &samsung_dsim_pm_ops,
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c
index be21c11de1..673661160e 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c
@@ -145,6 +145,10 @@ static irqreturn_t dw_hdmi_cec_hardirq(int irq, void *data)
cec->tx_status = CEC_TX_STATUS_NACK;
cec->tx_done = true;
ret = IRQ_WAKE_THREAD;
+ } else if (stat & CEC_STAT_ARBLOST) {
+ cec->tx_status = CEC_TX_STATUS_ARB_LOST;
+ cec->tx_done = true;
+ ret = IRQ_WAKE_THREAD;
}
if (stat & CEC_STAT_EOM) {
@@ -209,7 +213,7 @@ static int dw_hdmi_cec_enable(struct cec_adapter *adap, bool enable)
cec->ops->enable(cec->hdmi);
irqs = CEC_STAT_ERROR_INIT | CEC_STAT_NACK | CEC_STAT_EOM |
- CEC_STAT_DONE;
+ CEC_STAT_ARBLOST | CEC_STAT_DONE;
dw_hdmi_write(cec, irqs, HDMI_CEC_POLARITY);
dw_hdmi_write(cec, ~irqs, HDMI_CEC_MASK);
dw_hdmi_write(cec, ~irqs, HDMI_IH_MUTE_CEC_STAT0);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 6c1d794745..52d91a0df8 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -3541,9 +3541,7 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev,
| DRM_BRIDGE_OP_HPD;
hdmi->bridge.interlace_allowed = true;
hdmi->bridge.ddc = hdmi->ddc;
-#ifdef CONFIG_OF
hdmi->bridge.of_node = pdev->dev.of_node;
-#endif
memset(&pdevinfo, 0, sizeof(pdevinfo));
pdevinfo.parent = dev;
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
index 04d4a1a106..824fb3c657 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -12,6 +12,8 @@
#include <linux/component.h>
#include <linux/debugfs.h>
#include <linux/iopoll.h>
+#include <linux/math64.h>
+#include <linux/media-bus-format.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
@@ -22,6 +24,7 @@
#include <drm/bridge/dw_mipi_dsi.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_bridge.h>
+#include <drm/drm_connector.h>
#include <drm/drm_crtc.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
@@ -538,6 +541,59 @@ static const struct mipi_dsi_host_ops dw_mipi_dsi_host_ops = {
.transfer = dw_mipi_dsi_host_transfer,
};
+static u32 *
+dw_mipi_dsi_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
+ struct drm_bridge_state *bridge_state,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state,
+ u32 output_fmt,
+ unsigned int *num_input_fmts)
+{
+ struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);
+ const struct dw_mipi_dsi_plat_data *pdata = dsi->plat_data;
+ u32 *input_fmts;
+
+ if (pdata->get_input_bus_fmts)
+ return pdata->get_input_bus_fmts(pdata->priv_data,
+ bridge, bridge_state,
+ crtc_state, conn_state,
+ output_fmt, num_input_fmts);
+
+ /* Fall back to MEDIA_BUS_FMT_FIXED as the only input format. */
+ input_fmts = kmalloc(sizeof(*input_fmts), GFP_KERNEL);
+ if (!input_fmts)
+ return NULL;
+ input_fmts[0] = MEDIA_BUS_FMT_FIXED;
+ *num_input_fmts = 1;
+
+ return input_fmts;
+}
+
+static int dw_mipi_dsi_bridge_atomic_check(struct drm_bridge *bridge,
+ struct drm_bridge_state *bridge_state,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state)
+{
+ struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);
+ const struct dw_mipi_dsi_plat_data *pdata = dsi->plat_data;
+ bool ret;
+
+ bridge_state->input_bus_cfg.flags =
+ DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE;
+
+ if (pdata->mode_fixup) {
+ ret = pdata->mode_fixup(pdata->priv_data, &crtc_state->mode,
+ &crtc_state->adjusted_mode);
+ if (!ret) {
+ DRM_DEBUG_DRIVER("failed to fixup mode " DRM_MODE_FMT "\n",
+ DRM_MODE_ARG(&crtc_state->mode));
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
static void dw_mipi_dsi_video_mode_config(struct dw_mipi_dsi *dsi)
{
u32 val;
@@ -630,7 +686,7 @@ static void dw_mipi_dsi_init(struct dw_mipi_dsi *dsi)
* timeout clock division should be computed with the
* high speed transmission counter timeout and byte lane...
*/
- dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVISION(10) |
+ dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVISION(0) |
TX_ESC_CLK_DIVISION(esc_clk_division));
}
@@ -693,7 +749,7 @@ static void dw_mipi_dsi_command_mode_config(struct dw_mipi_dsi *dsi)
* compute high speed transmission counter timeout according
* to the timeout clock division (TO_CLK_DIVISION) and byte lane...
*/
- dsi_write(dsi, DSI_TO_CNT_CFG, HSTX_TO_CNT(1000) | LPRX_TO_CNT(1000));
+ dsi_write(dsi, DSI_TO_CNT_CFG, HSTX_TO_CNT(0) | LPRX_TO_CNT(0));
/*
* TODO dw drv improvements
* the Bus-Turn-Around Timeout Counter should be computed
@@ -703,20 +759,45 @@ static void dw_mipi_dsi_command_mode_config(struct dw_mipi_dsi *dsi)
dsi_write(dsi, DSI_MODE_CFG, ENABLE_CMD_MODE);
}
+static const u32 minimum_lbccs[] = {10, 5, 4, 3};
+
+static inline u32 dw_mipi_dsi_get_minimum_lbcc(struct dw_mipi_dsi *dsi)
+{
+ return minimum_lbccs[dsi->lanes - 1];
+}
+
/* Get lane byte clock cycles. */
static u32 dw_mipi_dsi_get_hcomponent_lbcc(struct dw_mipi_dsi *dsi,
const struct drm_display_mode *mode,
u32 hcomponent)
{
- u32 frac, lbcc;
+ u32 frac, lbcc, minimum_lbcc;
+ int bpp;
- lbcc = hcomponent * dsi->lane_mbps * MSEC_PER_SEC / 8;
+ if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) {
+ /* lbcc based on lane_mbps */
+ lbcc = hcomponent * dsi->lane_mbps * MSEC_PER_SEC / 8;
+ } else {
+ /* lbcc based on pixel clock rate */
+ bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);
+ if (bpp < 0) {
+ dev_err(dsi->dev, "failed to get bpp\n");
+ return 0;
+ }
+
+ lbcc = div_u64((u64)hcomponent * mode->clock * bpp, dsi->lanes * 8);
+ }
frac = lbcc % mode->clock;
lbcc = lbcc / mode->clock;
if (frac)
lbcc++;
+ minimum_lbcc = dw_mipi_dsi_get_minimum_lbcc(dsi);
+
+ if (lbcc < minimum_lbcc)
+ lbcc = minimum_lbcc;
+
return lbcc;
}
@@ -1006,6 +1087,8 @@ static int dw_mipi_dsi_bridge_attach(struct drm_bridge *bridge,
static const struct drm_bridge_funcs dw_mipi_dsi_bridge_funcs = {
.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
+ .atomic_get_input_bus_fmts = dw_mipi_dsi_bridge_atomic_get_input_bus_fmts,
+ .atomic_check = dw_mipi_dsi_bridge_atomic_check,
.atomic_reset = drm_atomic_helper_bridge_reset,
.atomic_pre_enable = dw_mipi_dsi_bridge_atomic_pre_enable,
.atomic_enable = dw_mipi_dsi_bridge_atomic_enable,
@@ -1182,9 +1265,7 @@ __dw_mipi_dsi_probe(struct platform_device *pdev,
dsi->bridge.driver_private = dsi;
dsi->bridge.funcs = &dw_mipi_dsi_bridge_funcs;
-#ifdef CONFIG_OF
dsi->bridge.of_node = pdev->dev.of_node;
-#endif
return dsi;
}
@@ -1211,6 +1292,12 @@ void dw_mipi_dsi_set_slave(struct dw_mipi_dsi *dsi, struct dw_mipi_dsi *slave)
}
EXPORT_SYMBOL_GPL(dw_mipi_dsi_set_slave);
+struct drm_bridge *dw_mipi_dsi_get_bridge(struct dw_mipi_dsi *dsi)
+{
+ return &dsi->bridge;
+}
+EXPORT_SYMBOL_GPL(dw_mipi_dsi_get_bridge);
+
/*
* Probe/remove API, used from platforms based on the DRM bridge API.
*/
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index d941c3a0e6..615cc8f950 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -2005,7 +2005,7 @@ static const struct regmap_config tc_regmap_config = {
.val_bits = 32,
.reg_stride = 4,
.max_register = PLL_DBG,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
.readable_reg = tc_readable_reg,
.volatile_table = &tc_volatile_table,
.writeable_reg = tc_writeable_reg,
diff --git a/drivers/gpu/drm/bridge/tc358768.c b/drivers/gpu/drm/bridge/tc358768.c
index 6eed5c4232..0e8813278a 100644
--- a/drivers/gpu/drm/bridge/tc358768.c
+++ b/drivers/gpu/drm/bridge/tc358768.c
@@ -9,6 +9,7 @@
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
+#include <linux/math64.h>
#include <linux/media-bus-format.h>
#include <linux/minmax.h>
#include <linux/module.h>
@@ -157,6 +158,7 @@ struct tc358768_priv {
u32 frs; /* PLL Freqency range for HSCK (post divider) */
u32 dsiclk; /* pll_clk / 2 */
+ u32 pclk; /* incoming pclk rate */
};
static inline struct tc358768_priv *dsi_host_to_tc358768(struct mipi_dsi_host
@@ -317,7 +319,7 @@ static int tc358768_calc_pll(struct tc358768_priv *priv,
target_pll = tc358768_pclk_to_pll(priv, mode->clock * 1000);
- /* pll_clk = RefClk * [(FBD + 1)/ (PRD + 1)] * [1 / (2^FRS)] */
+ /* pll_clk = RefClk * FBD / PRD * (1 / (2^FRS)) */
for (i = 0; i < ARRAY_SIZE(frs_limits); i++)
if (target_pll >= frs_limits[i])
@@ -337,19 +339,19 @@ static int tc358768_calc_pll(struct tc358768_priv *priv,
best_prd = 0;
best_fbd = 0;
- for (prd = 0; prd < 16; ++prd) {
- u32 divisor = (prd + 1) * (1 << frs);
+ for (prd = 1; prd <= 16; ++prd) {
+ u32 divisor = prd * (1 << frs);
u32 fbd;
- for (fbd = 0; fbd < 512; ++fbd) {
+ for (fbd = 1; fbd <= 512; ++fbd) {
u32 pll, diff, pll_in;
- pll = (u32)div_u64((u64)refclk * (fbd + 1), divisor);
+ pll = (u32)div_u64((u64)refclk * fbd, divisor);
if (pll >= max_pll || pll < min_pll)
continue;
- pll_in = (u32)div_u64((u64)refclk, prd + 1);
+ pll_in = (u32)div_u64((u64)refclk, prd);
if (pll_in < 4000000)
continue;
@@ -380,6 +382,7 @@ found:
priv->prd = best_prd;
priv->frs = frs;
priv->dsiclk = best_pll / 2;
+ priv->pclk = mode->clock * 1000;
return 0;
}
@@ -612,7 +615,7 @@ static int tc358768_setup_pll(struct tc358768_priv *priv,
mode->clock * 1000);
/* PRD[15:12] FBD[8:0] */
- tc358768_write(priv, TC358768_PLLCTL0, (prd << 12) | fbd);
+ tc358768_write(priv, TC358768_PLLCTL0, ((prd - 1) << 12) | (fbd - 1));
/* FRS[11:10] LBWS[9:8] CKEN[4] RESETB[1] EN[0] */
tc358768_write(priv, TC358768_PLLCTL1,
@@ -638,6 +641,28 @@ static u32 tc358768_ps_to_ns(u32 ps)
return ps / 1000;
}
+static u32 tc358768_dpi_to_ns(u32 val, u32 pclk)
+{
+ return (u32)div_u64((u64)val * NANO, pclk);
+}
+
+/* Convert value in DPI pixel clock units to DSI byte count */
+static u32 tc358768_dpi_to_dsi_bytes(struct tc358768_priv *priv, u32 val)
+{
+ u64 m = (u64)val * priv->dsiclk / 4 * priv->dsi_lanes;
+ u64 n = priv->pclk;
+
+ return (u32)div_u64(m + n - 1, n);
+}
+
+static u32 tc358768_dsi_bytes_to_ns(struct tc358768_priv *priv, u32 val)
+{
+ u64 m = (u64)val * NANO;
+ u64 n = priv->dsiclk / 4 * priv->dsi_lanes;
+
+ return (u32)div_u64(m, n);
+}
+
static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
{
struct tc358768_priv *priv = bridge_to_tc358768(bridge);
@@ -647,11 +672,19 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
s32 raw_val;
const struct drm_display_mode *mode;
u32 hsbyteclk_ps, dsiclk_ps, ui_ps;
- u32 dsiclk, hsbyteclk, video_start;
- const u32 internal_delay = 40;
+ u32 dsiclk, hsbyteclk;
int ret, i;
struct videomode vm;
struct device *dev = priv->dev;
+ /* In pixelclock units */
+ u32 dpi_htot, dpi_data_start;
+ /* In byte units */
+ u32 dsi_dpi_htot, dsi_dpi_data_start;
+ u32 dsi_hsw, dsi_hbp, dsi_hact, dsi_hfp;
+ const u32 dsi_hss = 4; /* HSS is a short packet (4 bytes) */
+ /* In hsbyteclk units */
+ u32 dsi_vsdly;
+ const u32 internal_dly = 40;
if (mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) {
dev_warn_once(dev, "Non-continuous mode unimplemented, falling back to continuous\n");
@@ -686,27 +719,23 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
case MIPI_DSI_FMT_RGB888:
val |= (0x3 << 4);
hact = vm.hactive * 3;
- video_start = (vm.hsync_len + vm.hback_porch) * 3;
data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24;
break;
case MIPI_DSI_FMT_RGB666:
val |= (0x4 << 4);
hact = vm.hactive * 3;
- video_start = (vm.hsync_len + vm.hback_porch) * 3;
data_type = MIPI_DSI_PACKED_PIXEL_STREAM_18;
break;
case MIPI_DSI_FMT_RGB666_PACKED:
val |= (0x4 << 4) | BIT(3);
hact = vm.hactive * 18 / 8;
- video_start = (vm.hsync_len + vm.hback_porch) * 18 / 8;
data_type = MIPI_DSI_PIXEL_STREAM_3BYTE_18;
break;
case MIPI_DSI_FMT_RGB565:
val |= (0x5 << 4);
hact = vm.hactive * 2;
- video_start = (vm.hsync_len + vm.hback_porch) * 2;
data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16;
break;
default:
@@ -716,9 +745,152 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
return;
}
+ /*
+ * There are three important things to make TC358768 work correctly,
+ * which are not trivial to manage:
+ *
+ * 1. Keep the DPI line-time and the DSI line-time as close to each
+ * other as possible.
+ * 2. TC358768 goes to LP mode after each line's active area. The DSI
+ * HFP period has to be long enough for entering and exiting LP mode.
+ * But it is not clear how to calculate this.
+ * 3. VSDly (video start delay) has to be long enough to ensure that the
+ * DSI TX does not start transmitting until we have started receiving
+ * pixel data from the DPI input. It is not clear how to calculate
+ * this either.
+ */
+
+ dpi_htot = vm.hactive + vm.hfront_porch + vm.hsync_len + vm.hback_porch;
+ dpi_data_start = vm.hsync_len + vm.hback_porch;
+
+ dev_dbg(dev, "dpi horiz timing (pclk): %u + %u + %u + %u = %u\n",
+ vm.hsync_len, vm.hback_porch, vm.hactive, vm.hfront_porch,
+ dpi_htot);
+
+ dev_dbg(dev, "dpi horiz timing (ns): %u + %u + %u + %u = %u\n",
+ tc358768_dpi_to_ns(vm.hsync_len, vm.pixelclock),
+ tc358768_dpi_to_ns(vm.hback_porch, vm.pixelclock),
+ tc358768_dpi_to_ns(vm.hactive, vm.pixelclock),
+ tc358768_dpi_to_ns(vm.hfront_porch, vm.pixelclock),
+ tc358768_dpi_to_ns(dpi_htot, vm.pixelclock));
+
+ dev_dbg(dev, "dpi data start (ns): %u + %u = %u\n",
+ tc358768_dpi_to_ns(vm.hsync_len, vm.pixelclock),
+ tc358768_dpi_to_ns(vm.hback_porch, vm.pixelclock),
+ tc358768_dpi_to_ns(dpi_data_start, vm.pixelclock));
+
+ dsi_dpi_htot = tc358768_dpi_to_dsi_bytes(priv, dpi_htot);
+ dsi_dpi_data_start = tc358768_dpi_to_dsi_bytes(priv, dpi_data_start);
+
+ if (dsi_dev->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE) {
+ dsi_hsw = tc358768_dpi_to_dsi_bytes(priv, vm.hsync_len);
+ dsi_hbp = tc358768_dpi_to_dsi_bytes(priv, vm.hback_porch);
+ } else {
+ /* HBP is included in HSW in event mode */
+ dsi_hbp = 0;
+ dsi_hsw = tc358768_dpi_to_dsi_bytes(priv,
+ vm.hsync_len +
+ vm.hback_porch);
+
+ /*
+ * The pixel packet includes the actual pixel data, and:
+ * DSI packet header = 4 bytes
+ * DCS code = 1 byte
+ * DSI packet footer = 2 bytes
+ */
+ dsi_hact = hact + 4 + 1 + 2;
+
+ dsi_hfp = dsi_dpi_htot - dsi_hact - dsi_hsw - dsi_hss;
+
+ /*
+ * Here we should check if HFP is long enough for entering LP
+ * and exiting LP, but it's not clear how to calculate that.
+ * Instead, this is a naive algorithm that just adjusts the HFP
+ * and HSW so that HFP is (at least) roughly 2/3 of the total
+ * blanking time.
+ */
+ if (dsi_hfp < (dsi_hfp + dsi_hsw + dsi_hss) * 2 / 3) {
+ u32 old_hfp = dsi_hfp;
+ u32 old_hsw = dsi_hsw;
+ u32 tot = dsi_hfp + dsi_hsw + dsi_hss;
+
+ dsi_hsw = tot / 3;
+
+ /*
+ * Seems like sometimes HSW has to be divisible by num-lanes, but
+ * not always...
+ */
+ dsi_hsw = roundup(dsi_hsw, priv->dsi_lanes);
+
+ dsi_hfp = dsi_dpi_htot - dsi_hact - dsi_hsw - dsi_hss;
+
+ dev_dbg(dev,
+ "hfp too short, adjusting dsi hfp and dsi hsw from %u, %u to %u, %u\n",
+ old_hfp, old_hsw, dsi_hfp, dsi_hsw);
+ }
+
+ dev_dbg(dev,
+ "dsi horiz timing (bytes): %u, %u + %u + %u + %u = %u\n",
+ dsi_hss, dsi_hsw, dsi_hbp, dsi_hact, dsi_hfp,
+ dsi_hss + dsi_hsw + dsi_hbp + dsi_hact + dsi_hfp);
+
+ dev_dbg(dev, "dsi horiz timing (ns): %u + %u + %u + %u + %u = %u\n",
+ tc358768_dsi_bytes_to_ns(priv, dsi_hss),
+ tc358768_dsi_bytes_to_ns(priv, dsi_hsw),
+ tc358768_dsi_bytes_to_ns(priv, dsi_hbp),
+ tc358768_dsi_bytes_to_ns(priv, dsi_hact),
+ tc358768_dsi_bytes_to_ns(priv, dsi_hfp),
+ tc358768_dsi_bytes_to_ns(priv, dsi_hss + dsi_hsw +
+ dsi_hbp + dsi_hact + dsi_hfp));
+ }
+
+ /* VSDly calculation */
+
+ /* Start with the HW internal delay */
+ dsi_vsdly = internal_dly;
+
+ /* Convert to byte units as the other variables are in byte units */
+ dsi_vsdly *= priv->dsi_lanes;
+
+ /* Do we need more delay, in addition to the internal? */
+ if (dsi_dpi_data_start > dsi_vsdly + dsi_hss + dsi_hsw + dsi_hbp) {
+ dsi_vsdly = dsi_dpi_data_start - dsi_hss - dsi_hsw - dsi_hbp;
+ dsi_vsdly = roundup(dsi_vsdly, priv->dsi_lanes);
+ }
+
+ dev_dbg(dev, "dsi data start (bytes) %u + %u + %u + %u = %u\n",
+ dsi_vsdly, dsi_hss, dsi_hsw, dsi_hbp,
+ dsi_vsdly + dsi_hss + dsi_hsw + dsi_hbp);
+
+ dev_dbg(dev, "dsi data start (ns) %u + %u + %u + %u = %u\n",
+ tc358768_dsi_bytes_to_ns(priv, dsi_vsdly),
+ tc358768_dsi_bytes_to_ns(priv, dsi_hss),
+ tc358768_dsi_bytes_to_ns(priv, dsi_hsw),
+ tc358768_dsi_bytes_to_ns(priv, dsi_hbp),
+ tc358768_dsi_bytes_to_ns(priv, dsi_vsdly + dsi_hss + dsi_hsw + dsi_hbp));
+
+ /* Convert back to hsbyteclk */
+ dsi_vsdly /= priv->dsi_lanes;
+
+ /*
+ * The docs say that there is an internal delay of 40 cycles.
+ * However, we get underflows if we follow that rule. If we
+ * instead ignore the internal delay, things work. So either
+ * the docs are wrong or the calculations are wrong.
+ *
+ * As a temporary fix, add the internal delay here, to counter
+ * the subtraction when writing the register.
+ */
+ dsi_vsdly += internal_dly;
+
+ /* Clamp to the register max */
+ if (dsi_vsdly - internal_dly > 0x3ff) {
+ dev_warn(dev, "VSDly too high, underflows likely\n");
+ dsi_vsdly = 0x3ff + internal_dly;
+ }
+
/* VSDly[9:0] */
- video_start = max(video_start, internal_delay + 1) - internal_delay;
- tc358768_write(priv, TC358768_VSDLY, video_start);
+ tc358768_write(priv, TC358768_VSDLY, dsi_vsdly - internal_dly);
tc358768_write(priv, TC358768_DATAFMT, val);
tc358768_write(priv, TC358768_DSITX_DT, data_type);
@@ -826,18 +998,6 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
/* vbp */
tc358768_write(priv, TC358768_DSI_VBPR, vm.vback_porch);
-
- /* hsw * byteclk * ndl / pclk */
- val = (u32)div_u64(vm.hsync_len *
- (u64)hsbyteclk * priv->dsi_lanes,
- vm.pixelclock);
- tc358768_write(priv, TC358768_DSI_HSW, val);
-
- /* hbp * byteclk * ndl / pclk */
- val = (u32)div_u64(vm.hback_porch *
- (u64)hsbyteclk * priv->dsi_lanes,
- vm.pixelclock);
- tc358768_write(priv, TC358768_DSI_HBPR, val);
} else {
/* Set event mode */
tc358768_write(priv, TC358768_DSI_EVENT, 1);
@@ -851,16 +1011,13 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge)
/* vbp (not used in event mode) */
tc358768_write(priv, TC358768_DSI_VBPR, 0);
+ }
- /* (hsw + hbp) * byteclk * ndl / pclk */
- val = (u32)div_u64((vm.hsync_len + vm.hback_porch) *
- (u64)hsbyteclk * priv->dsi_lanes,
- vm.pixelclock);
- tc358768_write(priv, TC358768_DSI_HSW, val);
+ /* hsw (bytes) */
+ tc358768_write(priv, TC358768_DSI_HSW, dsi_hsw);
- /* hbp (not used in event mode) */
- tc358768_write(priv, TC358768_DSI_HBPR, 0);
- }
+ /* hbp (bytes) */
+ tc358768_write(priv, TC358768_DSI_HBPR, dsi_hbp);
/* hact (bytes) */
tc358768_write(priv, TC358768_DSI_HACT, hact);
@@ -969,9 +1126,27 @@ tc358768_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
return input_fmts;
}
+static bool tc358768_mode_fixup(struct drm_bridge *bridge,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ /* Default to positive sync */
+
+ if (!(adjusted_mode->flags &
+ (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC)))
+ adjusted_mode->flags |= DRM_MODE_FLAG_PHSYNC;
+
+ if (!(adjusted_mode->flags &
+ (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC)))
+ adjusted_mode->flags |= DRM_MODE_FLAG_PVSYNC;
+
+ return true;
+}
+
static const struct drm_bridge_funcs tc358768_bridge_funcs = {
.attach = tc358768_bridge_attach,
.mode_valid = tc358768_bridge_mode_valid,
+ .mode_fixup = tc358768_mode_fixup,
.pre_enable = tc358768_bridge_pre_enable,
.enable = tc358768_bridge_enable,
.disable = tc358768_bridge_disable,
diff --git a/drivers/gpu/drm/bridge/ti-dlpc3433.c b/drivers/gpu/drm/bridge/ti-dlpc3433.c
index b65632ec7e..ca3348109b 100644
--- a/drivers/gpu/drm/bridge/ti-dlpc3433.c
+++ b/drivers/gpu/drm/bridge/ti-dlpc3433.c
@@ -100,7 +100,7 @@ static struct regmap_config dlpc_regmap_config = {
.max_register = WR_DSI_PORT_EN,
.writeable_noinc_reg = dlpc_writeable_noinc_reg,
.volatile_table = &dlpc_volatile_table,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
.name = "dlpc3433",
};
diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi83.c b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
index 061e8bd591..4814b7b6d1 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
@@ -233,7 +233,7 @@ static const struct regmap_config sn65dsi83_regmap_config = {
.rd_table = &sn65dsi83_readable_table,
.wr_table = &sn65dsi83_writeable_table,
.volatile_table = &sn65dsi83_volatile_table,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
.max_register = REG_IRQ_STAT,
};
diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index 3309c01fa7..b5464199b6 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -1582,7 +1582,6 @@ static const struct pwm_ops ti_sn_pwm_ops = {
.free = ti_sn_pwm_free,
.apply = ti_sn_pwm_apply,
.get_state = ti_sn_pwm_get_state,
- .owner = THIS_MODULE,
};
static int ti_sn_pwm_probe(struct auxiliary_device *adev,