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Diffstat (limited to 'drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c')
-rw-r--r--drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c166
1 files changed, 62 insertions, 104 deletions
diff --git a/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c b/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
index a623f092b1..a43e20abb1 100644
--- a/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
+++ b/drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
@@ -37,56 +37,28 @@
#define EUSB2_TUNE_EUSB_EQU 0x5A
#define EUSB2_TUNE_EUSB_HS_COMP_CUR 0x5B
-#define QCOM_EUSB2_REPEATER_INIT_CFG(r, v) \
- { \
- .reg = r, \
- .val = v, \
- }
-
-enum reg_fields {
- F_TUNE_EUSB_HS_COMP_CUR,
- F_TUNE_EUSB_EQU,
- F_TUNE_EUSB_SLEW,
- F_TUNE_USB2_HS_COMP_CUR,
- F_TUNE_USB2_PREEM,
- F_TUNE_USB2_EQU,
- F_TUNE_USB2_SLEW,
- F_TUNE_SQUELCH_U,
- F_TUNE_HSDISC,
- F_TUNE_RES_FSDIF,
- F_TUNE_IUSB2,
- F_TUNE_USB2_CROSSOVER,
- F_NUM_TUNE_FIELDS,
-
- F_FORCE_VAL_5 = F_NUM_TUNE_FIELDS,
- F_FORCE_EN_5,
-
- F_EN_CTL1,
-
- F_RPTR_STATUS,
- F_NUM_FIELDS,
-};
-
-static struct reg_field eusb2_repeater_tune_reg_fields[F_NUM_FIELDS] = {
- [F_TUNE_EUSB_HS_COMP_CUR] = REG_FIELD(EUSB2_TUNE_EUSB_HS_COMP_CUR, 0, 1),
- [F_TUNE_EUSB_EQU] = REG_FIELD(EUSB2_TUNE_EUSB_EQU, 0, 1),
- [F_TUNE_EUSB_SLEW] = REG_FIELD(EUSB2_TUNE_EUSB_SLEW, 0, 1),
- [F_TUNE_USB2_HS_COMP_CUR] = REG_FIELD(EUSB2_TUNE_USB2_HS_COMP_CUR, 0, 1),
- [F_TUNE_USB2_PREEM] = REG_FIELD(EUSB2_TUNE_USB2_PREEM, 0, 2),
- [F_TUNE_USB2_EQU] = REG_FIELD(EUSB2_TUNE_USB2_EQU, 0, 1),
- [F_TUNE_USB2_SLEW] = REG_FIELD(EUSB2_TUNE_USB2_SLEW, 0, 1),
- [F_TUNE_SQUELCH_U] = REG_FIELD(EUSB2_TUNE_SQUELCH_U, 0, 2),
- [F_TUNE_HSDISC] = REG_FIELD(EUSB2_TUNE_HSDISC, 0, 2),
- [F_TUNE_RES_FSDIF] = REG_FIELD(EUSB2_TUNE_RES_FSDIF, 0, 2),
- [F_TUNE_IUSB2] = REG_FIELD(EUSB2_TUNE_IUSB2, 0, 3),
- [F_TUNE_USB2_CROSSOVER] = REG_FIELD(EUSB2_TUNE_USB2_CROSSOVER, 0, 2),
-
- [F_FORCE_VAL_5] = REG_FIELD(EUSB2_FORCE_VAL_5, 0, 7),
- [F_FORCE_EN_5] = REG_FIELD(EUSB2_FORCE_EN_5, 0, 7),
-
- [F_EN_CTL1] = REG_FIELD(EUSB2_EN_CTL1, 0, 7),
-
- [F_RPTR_STATUS] = REG_FIELD(EUSB2_RPTR_STATUS, 0, 7),
+enum eusb2_reg_layout {
+ TUNE_EUSB_HS_COMP_CUR,
+ TUNE_EUSB_EQU,
+ TUNE_EUSB_SLEW,
+ TUNE_USB2_HS_COMP_CUR,
+ TUNE_USB2_PREEM,
+ TUNE_USB2_EQU,
+ TUNE_USB2_SLEW,
+ TUNE_SQUELCH_U,
+ TUNE_HSDISC,
+ TUNE_RES_FSDIF,
+ TUNE_IUSB2,
+ TUNE_USB2_CROSSOVER,
+ NUM_TUNE_FIELDS,
+
+ FORCE_VAL_5 = NUM_TUNE_FIELDS,
+ FORCE_EN_5,
+
+ EN_CTL1,
+
+ RPTR_STATUS,
+ LAYOUT_SIZE,
};
struct eusb2_repeater_cfg {
@@ -98,10 +70,11 @@ struct eusb2_repeater_cfg {
struct eusb2_repeater {
struct device *dev;
- struct regmap_field *regs[F_NUM_FIELDS];
+ struct regmap *regmap;
struct phy *phy;
struct regulator_bulk_data *vregs;
const struct eusb2_repeater_cfg *cfg;
+ u32 base;
enum phy_mode mode;
};
@@ -109,10 +82,10 @@ static const char * const pm8550b_vreg_l[] = {
"vdd18", "vdd3",
};
-static const u32 pm8550b_init_tbl[F_NUM_TUNE_FIELDS] = {
- [F_TUNE_IUSB2] = 0x8,
- [F_TUNE_SQUELCH_U] = 0x3,
- [F_TUNE_USB2_PREEM] = 0x5,
+static const u32 pm8550b_init_tbl[NUM_TUNE_FIELDS] = {
+ [TUNE_IUSB2] = 0x8,
+ [TUNE_SQUELCH_U] = 0x3,
+ [TUNE_USB2_PREEM] = 0x5,
};
static const struct eusb2_repeater_cfg pm8550b_eusb2_cfg = {
@@ -140,47 +113,42 @@ static int eusb2_repeater_init_vregs(struct eusb2_repeater *rptr)
static int eusb2_repeater_init(struct phy *phy)
{
- struct reg_field *regfields = eusb2_repeater_tune_reg_fields;
struct eusb2_repeater *rptr = phy_get_drvdata(phy);
struct device_node *np = rptr->dev->of_node;
- u32 init_tbl[F_NUM_TUNE_FIELDS] = { 0 };
- u8 override;
+ struct regmap *regmap = rptr->regmap;
+ const u32 *init_tbl = rptr->cfg->init_tbl;
+ u8 tune_usb2_preem = init_tbl[TUNE_USB2_PREEM];
+ u8 tune_hsdisc = init_tbl[TUNE_HSDISC];
+ u8 tune_iusb2 = init_tbl[TUNE_IUSB2];
+ u32 base = rptr->base;
u32 val;
int ret;
- int i;
+
+ of_property_read_u8(np, "qcom,tune-usb2-amplitude", &tune_iusb2);
+ of_property_read_u8(np, "qcom,tune-usb2-disc-thres", &tune_hsdisc);
+ of_property_read_u8(np, "qcom,tune-usb2-preem", &tune_usb2_preem);
ret = regulator_bulk_enable(rptr->cfg->num_vregs, rptr->vregs);
if (ret)
return ret;
- regmap_field_update_bits(rptr->regs[F_EN_CTL1], EUSB2_RPTR_EN, EUSB2_RPTR_EN);
+ regmap_write(regmap, base + EUSB2_EN_CTL1, EUSB2_RPTR_EN);
- for (i = 0; i < F_NUM_TUNE_FIELDS; i++) {
- if (init_tbl[i]) {
- regmap_field_update_bits(rptr->regs[i], init_tbl[i], init_tbl[i]);
- } else {
- /* Write 0 if there's no value set */
- u32 mask = GENMASK(regfields[i].msb, regfields[i].lsb);
-
- regmap_field_update_bits(rptr->regs[i], mask, 0);
- }
- }
- memcpy(init_tbl, rptr->cfg->init_tbl, sizeof(init_tbl));
+ regmap_write(regmap, base + EUSB2_TUNE_EUSB_HS_COMP_CUR, init_tbl[TUNE_EUSB_HS_COMP_CUR]);
+ regmap_write(regmap, base + EUSB2_TUNE_EUSB_EQU, init_tbl[TUNE_EUSB_EQU]);
+ regmap_write(regmap, base + EUSB2_TUNE_EUSB_SLEW, init_tbl[TUNE_EUSB_SLEW]);
+ regmap_write(regmap, base + EUSB2_TUNE_USB2_HS_COMP_CUR, init_tbl[TUNE_USB2_HS_COMP_CUR]);
+ regmap_write(regmap, base + EUSB2_TUNE_USB2_EQU, init_tbl[TUNE_USB2_EQU]);
+ regmap_write(regmap, base + EUSB2_TUNE_USB2_SLEW, init_tbl[TUNE_USB2_SLEW]);
+ regmap_write(regmap, base + EUSB2_TUNE_SQUELCH_U, init_tbl[TUNE_SQUELCH_U]);
+ regmap_write(regmap, base + EUSB2_TUNE_RES_FSDIF, init_tbl[TUNE_RES_FSDIF]);
+ regmap_write(regmap, base + EUSB2_TUNE_USB2_CROSSOVER, init_tbl[TUNE_USB2_CROSSOVER]);
- if (!of_property_read_u8(np, "qcom,tune-usb2-amplitude", &override))
- init_tbl[F_TUNE_IUSB2] = override;
+ regmap_write(regmap, base + EUSB2_TUNE_USB2_PREEM, tune_usb2_preem);
+ regmap_write(regmap, base + EUSB2_TUNE_HSDISC, tune_hsdisc);
+ regmap_write(regmap, base + EUSB2_TUNE_IUSB2, tune_iusb2);
- if (!of_property_read_u8(np, "qcom,tune-usb2-disc-thres", &override))
- init_tbl[F_TUNE_HSDISC] = override;
-
- if (!of_property_read_u8(np, "qcom,tune-usb2-preem", &override))
- init_tbl[F_TUNE_USB2_PREEM] = override;
-
- for (i = 0; i < F_NUM_TUNE_FIELDS; i++)
- regmap_field_update_bits(rptr->regs[i], init_tbl[i], init_tbl[i]);
-
- ret = regmap_field_read_poll_timeout(rptr->regs[F_RPTR_STATUS],
- val, val & RPTR_OK, 10, 5);
+ ret = regmap_read_poll_timeout(regmap, base + EUSB2_RPTR_STATUS, val, val & RPTR_OK, 10, 5);
if (ret)
dev_err(rptr->dev, "initialization timed-out\n");
@@ -191,6 +159,8 @@ static int eusb2_repeater_set_mode(struct phy *phy,
enum phy_mode mode, int submode)
{
struct eusb2_repeater *rptr = phy_get_drvdata(phy);
+ struct regmap *regmap = rptr->regmap;
+ u32 base = rptr->base;
switch (mode) {
case PHY_MODE_USB_HOST:
@@ -199,10 +169,8 @@ static int eusb2_repeater_set_mode(struct phy *phy,
* per eUSB 1.2 Spec. Below implement software workaround until
* PHY and controller is fixing seen observation.
*/
- regmap_field_update_bits(rptr->regs[F_FORCE_EN_5],
- F_CLK_19P2M_EN, F_CLK_19P2M_EN);
- regmap_field_update_bits(rptr->regs[F_FORCE_VAL_5],
- V_CLK_19P2M_EN, V_CLK_19P2M_EN);
+ regmap_write(regmap, base + EUSB2_FORCE_EN_5, F_CLK_19P2M_EN);
+ regmap_write(regmap, base + EUSB2_FORCE_VAL_5, V_CLK_19P2M_EN);
break;
case PHY_MODE_USB_DEVICE:
/*
@@ -211,10 +179,8 @@ static int eusb2_repeater_set_mode(struct phy *phy,
* repeater doesn't clear previous value due to shared
* regulators (say host <-> device mode switch).
*/
- regmap_field_update_bits(rptr->regs[F_FORCE_EN_5],
- F_CLK_19P2M_EN, 0);
- regmap_field_update_bits(rptr->regs[F_FORCE_VAL_5],
- V_CLK_19P2M_EN, 0);
+ regmap_write(regmap, base + EUSB2_FORCE_EN_5, 0);
+ regmap_write(regmap, base + EUSB2_FORCE_VAL_5, 0);
break;
default:
return -EINVAL;
@@ -243,9 +209,8 @@ static int eusb2_repeater_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct phy_provider *phy_provider;
struct device_node *np = dev->of_node;
- struct regmap *regmap;
- int i, ret;
u32 res;
+ int ret;
rptr = devm_kzalloc(dev, sizeof(*rptr), GFP_KERNEL);
if (!rptr)
@@ -258,22 +223,15 @@ static int eusb2_repeater_probe(struct platform_device *pdev)
if (!rptr->cfg)
return -EINVAL;
- regmap = dev_get_regmap(dev->parent, NULL);
- if (!regmap)
+ rptr->regmap = dev_get_regmap(dev->parent, NULL);
+ if (!rptr->regmap)
return -ENODEV;
ret = of_property_read_u32(np, "reg", &res);
if (ret < 0)
return ret;
- for (i = 0; i < F_NUM_FIELDS; i++)
- eusb2_repeater_tune_reg_fields[i].reg += res;
-
- ret = devm_regmap_field_bulk_alloc(dev, regmap, rptr->regs,
- eusb2_repeater_tune_reg_fields,
- F_NUM_FIELDS);
- if (ret)
- return ret;
+ rptr->base = res;
ret = eusb2_repeater_init_vregs(rptr);
if (ret < 0) {