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-rw-r--r--drivers/net/wireless/st/cw1200/cw1200_sdio.c42
-rw-r--r--drivers/net/wireless/st/cw1200/cw1200_spi.c75
-rw-r--r--drivers/net/wireless/st/cw1200/main.c4
3 files changed, 71 insertions, 50 deletions
diff --git a/drivers/net/wireless/st/cw1200/cw1200_sdio.c b/drivers/net/wireless/st/cw1200/cw1200_sdio.c
index 4c30b5772c..00c4731d8f 100644
--- a/drivers/net/wireless/st/cw1200/cw1200_sdio.c
+++ b/drivers/net/wireless/st/cw1200/cw1200_sdio.c
@@ -8,7 +8,7 @@
#include <linux/module.h>
#include <linux/interrupt.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sdio_func.h>
@@ -178,12 +178,15 @@ static int cw1200_sdio_irq_unsubscribe(struct hwbus_priv *self)
return ret;
}
+/* Like the rest of the driver, this only supports one device per system */
+static struct gpio_desc *cw1200_reset;
+static struct gpio_desc *cw1200_powerup;
+
static int cw1200_sdio_off(const struct cw1200_platform_data_sdio *pdata)
{
- if (pdata->reset) {
- gpio_set_value(pdata->reset, 0);
+ if (cw1200_reset) {
+ gpiod_set_value(cw1200_reset, 0);
msleep(30); /* Min is 2 * CLK32K cycles */
- gpio_free(pdata->reset);
}
if (pdata->power_ctrl)
@@ -196,16 +199,21 @@ static int cw1200_sdio_off(const struct cw1200_platform_data_sdio *pdata)
static int cw1200_sdio_on(const struct cw1200_platform_data_sdio *pdata)
{
- /* Ensure I/Os are pulled low */
- if (pdata->reset) {
- gpio_request(pdata->reset, "cw1200_wlan_reset");
- gpio_direction_output(pdata->reset, 0);
+ /* Ensure I/Os are pulled low (reset is active low) */
+ cw1200_reset = devm_gpiod_get_optional(NULL, "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(cw1200_reset)) {
+ pr_err("could not get CW1200 SDIO reset GPIO\n");
+ return PTR_ERR(cw1200_reset);
}
- if (pdata->powerup) {
- gpio_request(pdata->powerup, "cw1200_wlan_powerup");
- gpio_direction_output(pdata->powerup, 0);
+ gpiod_set_consumer_name(cw1200_reset, "cw1200_wlan_reset");
+ cw1200_powerup = devm_gpiod_get_optional(NULL, "powerup", GPIOD_OUT_LOW);
+ if (IS_ERR(cw1200_powerup)) {
+ pr_err("could not get CW1200 SDIO powerup GPIO\n");
+ return PTR_ERR(cw1200_powerup);
}
- if (pdata->reset || pdata->powerup)
+ gpiod_set_consumer_name(cw1200_powerup, "cw1200_wlan_powerup");
+
+ if (cw1200_reset || cw1200_powerup)
msleep(10); /* Settle time? */
/* Enable 3v3 and 1v8 to hardware */
@@ -226,13 +234,13 @@ static int cw1200_sdio_on(const struct cw1200_platform_data_sdio *pdata)
}
/* Enable POWERUP signal */
- if (pdata->powerup) {
- gpio_set_value(pdata->powerup, 1);
+ if (cw1200_powerup) {
+ gpiod_set_value(cw1200_powerup, 1);
msleep(250); /* or more..? */
}
- /* Enable RSTn signal */
- if (pdata->reset) {
- gpio_set_value(pdata->reset, 1);
+ /* Deassert RSTn signal, note active low */
+ if (cw1200_reset) {
+ gpiod_set_value(cw1200_reset, 0);
msleep(50); /* Or more..? */
}
return 0;
diff --git a/drivers/net/wireless/st/cw1200/cw1200_spi.c b/drivers/net/wireless/st/cw1200/cw1200_spi.c
index c82c0688b5..4f346fb977 100644
--- a/drivers/net/wireless/st/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/st/cw1200/cw1200_spi.c
@@ -11,7 +11,7 @@
*/
#include <linux/module.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
@@ -38,6 +38,8 @@ struct hwbus_priv {
const struct cw1200_platform_data_spi *pdata;
spinlock_t lock; /* Serialize all bus operations */
wait_queue_head_t wq;
+ struct gpio_desc *reset;
+ struct gpio_desc *powerup;
int claimed;
};
@@ -80,7 +82,7 @@ static int cw1200_spi_memcpy_fromio(struct hwbus_priv *self,
#endif
/* Header is LE16 */
- regaddr = cpu_to_le16(regaddr);
+ regaddr = (__force u16)cpu_to_le16(regaddr);
/* We have to byteswap if the SPI bus is limited to 8b operation
or we are running on a Big Endian system
@@ -145,7 +147,7 @@ static int cw1200_spi_memcpy_toio(struct hwbus_priv *self,
#endif
/* Header is LE16 */
- regaddr = cpu_to_le16(regaddr);
+ regaddr = (__force u16)cpu_to_le16(regaddr);
/* We have to byteswap if the SPI bus is limited to 8b operation
or we are running on a Big Endian system
@@ -275,12 +277,12 @@ static void cw1200_spi_irq_unsubscribe(struct hwbus_priv *self)
free_irq(self->func->irq, self);
}
-static int cw1200_spi_off(const struct cw1200_platform_data_spi *pdata)
+static int cw1200_spi_off(struct hwbus_priv *self, const struct cw1200_platform_data_spi *pdata)
{
- if (pdata->reset) {
- gpio_set_value(pdata->reset, 0);
+ if (self->reset) {
+ /* Assert RESET, note active low */
+ gpiod_set_value(self->reset, 1);
msleep(30); /* Min is 2 * CLK32K cycles */
- gpio_free(pdata->reset);
}
if (pdata->power_ctrl)
@@ -291,18 +293,12 @@ static int cw1200_spi_off(const struct cw1200_platform_data_spi *pdata)
return 0;
}
-static int cw1200_spi_on(const struct cw1200_platform_data_spi *pdata)
+static int cw1200_spi_on(struct hwbus_priv *self, const struct cw1200_platform_data_spi *pdata)
{
/* Ensure I/Os are pulled low */
- if (pdata->reset) {
- gpio_request(pdata->reset, "cw1200_wlan_reset");
- gpio_direction_output(pdata->reset, 0);
- }
- if (pdata->powerup) {
- gpio_request(pdata->powerup, "cw1200_wlan_powerup");
- gpio_direction_output(pdata->powerup, 0);
- }
- if (pdata->reset || pdata->powerup)
+ gpiod_direction_output(self->reset, 1); /* Active low */
+ gpiod_direction_output(self->powerup, 0);
+ if (self->reset || self->powerup)
msleep(10); /* Settle time? */
/* Enable 3v3 and 1v8 to hardware */
@@ -323,13 +319,13 @@ static int cw1200_spi_on(const struct cw1200_platform_data_spi *pdata)
}
/* Enable POWERUP signal */
- if (pdata->powerup) {
- gpio_set_value(pdata->powerup, 1);
+ if (self->powerup) {
+ gpiod_set_value(self->powerup, 1);
msleep(250); /* or more..? */
}
- /* Enable RSTn signal */
- if (pdata->reset) {
- gpio_set_value(pdata->reset, 1);
+ /* Assert RSTn signal, note active low */
+ if (self->reset) {
+ gpiod_set_value(self->reset, 0);
msleep(50); /* Or more..? */
}
return 0;
@@ -381,20 +377,33 @@ static int cw1200_spi_probe(struct spi_device *func)
spi_get_chipselect(func, 0), func->mode, func->bits_per_word,
func->max_speed_hz);
- if (cw1200_spi_on(plat_data)) {
+ self = devm_kzalloc(&func->dev, sizeof(*self), GFP_KERNEL);
+ if (!self) {
+ pr_err("Can't allocate SPI hwbus_priv.");
+ return -ENOMEM;
+ }
+
+ /* Request reset asserted */
+ self->reset = devm_gpiod_get_optional(&func->dev, "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(self->reset))
+ return dev_err_probe(&func->dev, PTR_ERR(self->reset),
+ "could not get reset GPIO\n");
+ gpiod_set_consumer_name(self->reset, "cw1200_wlan_reset");
+
+ self->powerup = devm_gpiod_get_optional(&func->dev, "powerup", GPIOD_OUT_LOW);
+ if (IS_ERR(self->powerup))
+ return dev_err_probe(&func->dev, PTR_ERR(self->powerup),
+ "could not get powerup GPIO\n");
+ gpiod_set_consumer_name(self->reset, "cw1200_wlan_powerup");
+
+ if (cw1200_spi_on(self, plat_data)) {
pr_err("spi_on() failed!\n");
- return -1;
+ return -ENODEV;
}
if (spi_setup(func)) {
pr_err("spi_setup() failed!\n");
- return -1;
- }
-
- self = devm_kzalloc(&func->dev, sizeof(*self), GFP_KERNEL);
- if (!self) {
- pr_err("Can't allocate SPI hwbus_priv.");
- return -ENOMEM;
+ return -ENODEV;
}
self->pdata = plat_data;
@@ -416,7 +425,7 @@ static int cw1200_spi_probe(struct spi_device *func)
if (status) {
cw1200_spi_irq_unsubscribe(self);
- cw1200_spi_off(plat_data);
+ cw1200_spi_off(self, plat_data);
}
return status;
@@ -434,7 +443,7 @@ static void cw1200_spi_disconnect(struct spi_device *func)
self->core = NULL;
}
}
- cw1200_spi_off(dev_get_platdata(&func->dev));
+ cw1200_spi_off(self, dev_get_platdata(&func->dev));
}
static int __maybe_unused cw1200_spi_suspend(struct device *dev)
diff --git a/drivers/net/wireless/st/cw1200/main.c b/drivers/net/wireless/st/cw1200/main.c
index 381013e0db..a54a7b8686 100644
--- a/drivers/net/wireless/st/cw1200/main.c
+++ b/drivers/net/wireless/st/cw1200/main.c
@@ -203,6 +203,10 @@ static const unsigned long cw1200_ttl[] = {
};
static const struct ieee80211_ops cw1200_ops = {
+ .add_chanctx = ieee80211_emulate_add_chanctx,
+ .remove_chanctx = ieee80211_emulate_remove_chanctx,
+ .change_chanctx = ieee80211_emulate_change_chanctx,
+ .switch_vif_chanctx = ieee80211_emulate_switch_vif_chanctx,
.start = cw1200_start,
.stop = cw1200_stop,
.add_interface = cw1200_add_interface,
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-09 07:34:43 +0000