--- /dev/null
+From: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
+Date: Sun, 31 Jan 2016 21:01:31 +0100
+Subject: [PATCH v4 4/8] mac80211: ath9k: enable access to GPIO
+
+Enable access to GPIO chip and its pins for Atheros AR92xx
+wireless devices. For now AR9285 and AR9287 are supported.
+
+Signed-off-by: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+---
+--- a/drivers/net/wireless/ath/ath9k/ath9k.h
++++ b/drivers/net/wireless/ath/ath9k/ath9k.h
+@@ -24,6 +24,7 @@
+ #include <linux/completion.h>
+ #include <linux/time.h>
+ #include <linux/hw_random.h>
++#include <linux/gpio/driver.h>
+
+ #include "common.h"
+ #include "debug.h"
+@@ -963,6 +964,14 @@ struct ath_led {
+ struct led_classdev cdev;
+ };
+
++#ifdef CONFIG_GPIOLIB
++struct ath9k_gpio_chip {
++ struct ath_softc *sc;
++ char label[32];
++ struct gpio_chip gchip;
++};
++#endif
++
+ struct ath_softc {
+ struct ieee80211_hw *hw;
+ struct device *dev;
+@@ -1017,6 +1026,9 @@ struct ath_softc {
+ #ifdef CPTCFG_MAC80211_LEDS
+ const char *led_default_trigger;
+ struct list_head leds;
++#ifdef CONFIG_GPIOLIB
++ struct ath9k_gpio_chip *gpiochip;
++#endif
+ #endif
+
+ #ifdef CPTCFG_ATH9K_DEBUGFS
+--- a/drivers/net/wireless/ath/ath9k/gpio.c
++++ b/drivers/net/wireless/ath/ath9k/gpio.c
+@@ -16,12 +16,138 @@
+
+ #include "ath9k.h"
+ #include <linux/ath9k_platform.h>
++#include <linux/gpio.h>
++
++#ifdef CPTCFG_MAC80211_LEDS
++
++#ifdef CONFIG_GPIOLIB
++
++/***************/
++/* GPIO Chip */
++/***************/
++
++/* gpio_chip handler : set GPIO to input */
++static int ath9k_gpio_pin_cfg_input(struct gpio_chip *chip, unsigned offset)
++{
++ struct ath9k_gpio_chip *gc = container_of(chip, struct ath9k_gpio_chip,
++ gchip);
++
++ ath9k_hw_cfg_gpio_input(gc->sc->sc_ah, offset);
++
++ return 0;
++}
++
++/* gpio_chip handler : set GPIO to output */
++static int ath9k_gpio_pin_cfg_output(struct gpio_chip *chip, unsigned offset,
++ int value)
++{
++ struct ath9k_gpio_chip *gc = container_of(chip, struct ath9k_gpio_chip,
++ gchip);
++
++ ath9k_hw_cfg_output(gc->sc->sc_ah, offset,
++ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
++ ath9k_hw_set_gpio(gc->sc->sc_ah, offset, value);
++
++ return 0;
++}
++
++/* gpio_chip handler : query GPIO direction (0=out, 1=in) */
++static int ath9k_gpio_pin_get_dir(struct gpio_chip *chip, unsigned offset)
++{
++ struct ath9k_gpio_chip *gc = container_of(chip, struct ath9k_gpio_chip,
++ gchip);
++ struct ath_hw *ah = gc->sc->sc_ah;
++
++ return !((REG_READ(ah, AR_GPIO_OE_OUT) >> (offset * 2)) & 3);
++}
++
++/* gpio_chip handler : get GPIO pin value */
++static int ath9k_gpio_pin_get(struct gpio_chip *chip, unsigned offset)
++{
++ struct ath9k_gpio_chip *gc = container_of(chip, struct ath9k_gpio_chip,
++ gchip);
++
++ return ath9k_hw_gpio_get(gc->sc->sc_ah, offset);
++}
++
++/* gpio_chip handler : set GPIO pin to value */
++static void ath9k_gpio_pin_set(struct gpio_chip *chip, unsigned offset,
++ int value)
++{
++ struct ath9k_gpio_chip *gc = container_of(chip, struct ath9k_gpio_chip,
++ gchip);
++
++ ath9k_hw_set_gpio(gc->sc->sc_ah, offset, value);
++}
++
++/* register GPIO chip */
++static void ath9k_register_gpio_chip(struct ath_softc *sc)
++{
++ struct ath9k_gpio_chip *gc;
++ u16 ng;
++
++ /* for now only AR9285 and AR9287 are recognized */
++ if (AR_SREV_9287(sc->sc_ah))
++ ng = AR9287_NUM_GPIO;
++ else if (AR_SREV_9285(sc->sc_ah))
++ ng = AR9285_NUM_GPIO;
++ else
++ return;
++
++ gc = kzalloc(sizeof(struct ath9k_gpio_chip), GFP_KERNEL);
++ if (!gc)
++ return;
++
++ snprintf(gc->label, sizeof(gc->label), "ath9k-%s",
++ wiphy_name(sc->hw->wiphy));
++ gc->gchip.label = gc->label;
++ gc->gchip.base = -1; /* determine base automatically */
++ gc->gchip.ngpio = ng;
++ gc->gchip.direction_input = ath9k_gpio_pin_cfg_input;
++ gc->gchip.direction_output = ath9k_gpio_pin_cfg_output;
++ gc->gchip.get_direction = ath9k_gpio_pin_get_dir;
++ gc->gchip.get = ath9k_gpio_pin_get;
++ gc->gchip.set = ath9k_gpio_pin_set;
++ gc->gchip.owner = THIS_MODULE;
++
++ if (gpiochip_add(&gc->gchip)) {
++ kfree(gc);
++ return;
++ }
++
++ sc->gpiochip = gc;
++ gc->sc = sc;
++}
++
++/* remove GPIO chip */
++static void ath9k_unregister_gpio_chip(struct ath_softc *sc)
++{
++ struct ath9k_gpio_chip *gc = sc->gpiochip;
++
++ if (!gc)
++ return;
++
++ gpiochip_remove(&gc->gchip);
++ kfree(gc);
++ sc->gpiochip = NULL;
++}
++
++#else /* CONFIG_GPIOLIB */
++
++static inline void ath9k_register_gpio_chip(struct ath_softc *sc)
++{
++}
++
++static inline void ath9k_unregister_gpio_chip(struct ath_softc *sc)
++{
++}
++
++#endif /* CONFIG_GPIOLIB */
+
+ /********************************/
+ /* LED functions */
+ /********************************/
+
+-#ifdef CPTCFG_MAC80211_LEDS
+ static void ath_led_brightness(struct led_classdev *led_cdev,
+ enum led_brightness brightness)
+ {
+@@ -60,6 +186,12 @@ static int ath_add_led(struct ath_softc
+ else
+ ath9k_hw_set_gpio(sc->sc_ah, gpio->gpio, gpio->active_low);
+
++#ifdef CONFIG_GPIOLIB
++ /* If there is GPIO chip configured, reserve LED pin */
++ if (sc->gpiochip)
++ gpio_request(sc->gpiochip->gchip.base + gpio->gpio, gpio->name);
++#endif
++
+ return 0;
+ }
+
+@@ -116,11 +248,17 @@ void ath_deinit_leds(struct ath_softc *s
+
+ while (!list_empty(&sc->leds)) {
+ led = list_first_entry(&sc->leds, struct ath_led, list);
++#ifdef CONFIG_GPIOLIB
++ /* If there is GPIO chip configured, free LED pin */
++ if (sc->gpiochip)
++ gpio_free(sc->gpiochip->gchip.base + led->gpio->gpio);
++#endif
+ list_del(&led->list);
+ ath_led_brightness(&led->cdev, LED_OFF);
+ led_classdev_unregister(&led->cdev);
+ kfree(led);
+ }
++ ath9k_unregister_gpio_chip(sc);
+ }
+
+ void ath_init_leds(struct ath_softc *sc)
+@@ -135,6 +273,8 @@ void ath_init_leds(struct ath_softc *sc)
+ if (AR_SREV_9100(sc->sc_ah))
+ return;
+
++ ath9k_register_gpio_chip(sc);
++
+ if (pdata && pdata->led_name)
+ strncpy(led_name, pdata->led_name, sizeof(led_name));
+ else
+@@ -186,6 +326,7 @@ void ath_fill_led_pin(struct ath_softc *
+ /* LED off, active low */
+ ath9k_hw_set_gpio(ah, ah->led_pin, (ah->config.led_active_high) ? 0 : 1);
+ }
++
+ #endif
+
+ /*******************/
--- /dev/null
+From: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
+Subject: [PATCH v5 5/8] mac80211: ath9k: enable GPIO buttons
+
+Enable platform-defined GPIO button support for ath9k device.
+Key poller is activated for attached platform buttons.
+Requires ath9k GPIO chip access.
+
+Signed-off-by: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+---
+--- a/drivers/net/wireless/ath/ath9k/ath9k.h
++++ b/drivers/net/wireless/ath/ath9k/ath9k.h
+@@ -1028,6 +1028,7 @@ struct ath_softc {
+ struct list_head leds;
+ #ifdef CONFIG_GPIOLIB
+ struct ath9k_gpio_chip *gpiochip;
++ struct platform_device *btnpdev; /* gpio-keys-polled */
+ #endif
+ #endif
+
+--- a/drivers/net/wireless/ath/ath9k/gpio.c
++++ b/drivers/net/wireless/ath/ath9k/gpio.c
+@@ -17,6 +17,8 @@
+ #include "ath9k.h"
+ #include <linux/ath9k_platform.h>
+ #include <linux/gpio.h>
++#include <linux/platform_device.h>
++#include <linux/gpio_keys.h>
+
+ #ifdef CPTCFG_MAC80211_LEDS
+
+@@ -132,6 +134,63 @@ static void ath9k_unregister_gpio_chip(s
+ sc->gpiochip = NULL;
+ }
+
++/******************/
++/* GPIO Buttons */
++/******************/
++
++/* add GPIO buttons */
++static void ath9k_init_buttons(struct ath_softc *sc)
++{
++ struct ath9k_platform_data *pdata = sc->dev->platform_data;
++ struct platform_device *pdev;
++ struct gpio_keys_platform_data gkpdata;
++ struct gpio_keys_button *bt;
++ int i;
++
++ if (!sc->gpiochip)
++ return;
++
++ if (!pdata || !pdata->btns || !pdata->num_btns)
++ return;
++
++ bt = devm_kmemdup(sc->dev, pdata->btns,
++ pdata->num_btns * sizeof(struct gpio_keys_button),
++ GFP_KERNEL);
++ if (!bt)
++ return;
++
++ for (i = 0; i < pdata->num_btns; i++) {
++ ath9k_hw_cfg_gpio_input(sc->sc_ah, pdata->btns[i].gpio);
++ bt[i].gpio = sc->gpiochip->gchip.base + pdata->btns[i].gpio;
++ }
++
++ memset(&gkpdata, 0, sizeof(struct gpio_keys_platform_data));
++ gkpdata.buttons = bt;
++ gkpdata.nbuttons = pdata->num_btns;
++ gkpdata.poll_interval = pdata->btn_poll_interval;
++
++ pdev = platform_device_register_data(sc->dev, "gpio-keys-polled",
++ PLATFORM_DEVID_AUTO, &gkpdata,
++ sizeof(gkpdata));
++ if (!IS_ERR_OR_NULL(pdev))
++ sc->btnpdev = pdev;
++ else {
++ sc->btnpdev = NULL;
++ devm_kfree(sc->dev, bt);
++ }
++}
++
++/* remove GPIO buttons */
++static void ath9k_deinit_buttons(struct ath_softc *sc)
++{
++ if (!sc->gpiochip || !sc->btnpdev)
++ return;
++
++ platform_device_unregister(sc->btnpdev);
++
++ sc->btnpdev = NULL;
++}
++
+ #else /* CONFIG_GPIOLIB */
+
+ static inline void ath9k_register_gpio_chip(struct ath_softc *sc)
+@@ -142,6 +201,14 @@ static inline void ath9k_unregister_gpio
+ {
+ }
+
++static inline void ath9k_init_buttons(struct ath_softc *sc)
++{
++}
++
++static inline void ath9k_deinit_buttons(struct ath_softc *sc)
++{
++}
++
+ #endif /* CONFIG_GPIOLIB */
+
+ /********************************/
+@@ -246,6 +313,7 @@ void ath_deinit_leds(struct ath_softc *s
+ {
+ struct ath_led *led;
+
++ ath9k_deinit_buttons(sc);
+ while (!list_empty(&sc->leds)) {
+ led = list_first_entry(&sc->leds, struct ath_led, list);
+ #ifdef CONFIG_GPIOLIB
+@@ -274,6 +342,7 @@ void ath_init_leds(struct ath_softc *sc)
+ return;
+
+ ath9k_register_gpio_chip(sc);
++ ath9k_init_buttons(sc);
+
+ if (pdata && pdata->led_name)
+ strncpy(led_name, pdata->led_name, sizeof(led_name));
+@@ -289,7 +358,7 @@ void ath_init_leds(struct ath_softc *sc)
+ ath_create_gpio_led(sc, sc->sc_ah->led_pin, led_name, trigger,
+ !sc->sc_ah->config.led_active_high);
+
+- if (!pdata)
++ if (!pdata || !pdata->leds || !pdata->num_leds)
+ return;
+
+ for (i = 0; i < pdata->num_leds; i++)
+--- a/include/linux/ath9k_platform.h
++++ b/include/linux/ath9k_platform.h
+@@ -46,6 +46,10 @@ struct ath9k_platform_data {
+ int num_leds;
+ const struct gpio_led *leds;
+ const char *led_name;
++
++ unsigned num_btns;
++ const struct gpio_keys_button *btns;
++ unsigned btn_poll_interval;
+ };
+
+ #endif /* _LINUX_ATH9K_PLATFORM_H */
+++ /dev/null
-From: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
-Date: Sun, 31 Jan 2016 21:01:31 +0100
-Subject: [PATCH v4 4/8] mac80211: ath9k: enable access to GPIO
-
-Enable access to GPIO chip and its pins for Atheros AR92xx
-wireless devices. For now AR9285 and AR9287 are supported.
-
-Signed-off-by: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
----
- ath9k.h | 23 ++++++++++++
- gpio.c | 121 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
- init.c | 2 +
- 3 files changed, 146 insertions(+)
-
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -24,6 +24,7 @@
- #include <linux/completion.h>
- #include <linux/time.h>
- #include <linux/hw_random.h>
-+#include <linux/gpio/driver.h>
-
- #include "common.h"
- #include "debug.h"
-@@ -817,6 +818,13 @@ void ath_fill_led_pin(struct ath_softc *
- int ath_create_gpio_led(struct ath_softc *sc, int gpio, const char *name,
- const char *trigger, bool active_low);
-
-+/***************/
-+/* GPIO Chip */
-+/***************/
-+
-+void ath9k_register_gpio_chip(struct ath_softc *sc);
-+void ath9k_unregister_gpio_chip(struct ath_softc *sc);
-+
- #else
- static inline void ath_init_leds(struct ath_softc *sc)
- {
-@@ -828,6 +836,14 @@ static inline void ath_deinit_leds(struc
- static inline void ath_fill_led_pin(struct ath_softc *sc)
- {
- }
-+
-+static inline void ath9k_register_gpio_chip(struct ath_softc *sc)
-+{
-+}
-+
-+static inline void ath9k_unregister_gpio_chip(struct ath_softc *sc)
-+{
-+}
- #endif
-
- /************************/
-@@ -963,6 +979,12 @@ struct ath_led {
- struct led_classdev cdev;
- };
-
-+struct ath9k_gpio_chip {
-+ struct ath_softc *sc;
-+ char label[32];
-+ struct gpio_chip gchip;
-+};
-+
- struct ath_softc {
- struct ieee80211_hw *hw;
- struct device *dev;
-@@ -1017,6 +1039,7 @@ struct ath_softc {
- #ifdef CPTCFG_MAC80211_LEDS
- const char *led_default_trigger;
- struct list_head leds;
-+ struct ath9k_gpio_chip *gpiochip;
- #endif
-
- #ifdef CPTCFG_ATH9K_DEBUGFS
---- a/drivers/net/wireless/ath/ath9k/gpio.c
-+++ b/drivers/net/wireless/ath/ath9k/gpio.c
-@@ -22,6 +22,9 @@
- /********************************/
-
- #ifdef CPTCFG_MAC80211_LEDS
-+
-+#include <asm-generic/gpio.h>
-+
- static void ath_led_brightness(struct led_classdev *led_cdev,
- enum led_brightness brightness)
- {
-@@ -60,6 +63,10 @@ static int ath_add_led(struct ath_softc
- else
- ath9k_hw_set_gpio(sc->sc_ah, gpio->gpio, gpio->active_low);
-
-+ /* If there is GPIO chip configured, reserve LED pin */
-+ if (sc->gpiochip)
-+ gpio_request(sc->gpiochip->gchip.base + gpio->gpio, gpio->name);
-+
- return 0;
- }
-
-@@ -116,6 +123,9 @@ void ath_deinit_leds(struct ath_softc *s
-
- while (!list_empty(&sc->leds)) {
- led = list_first_entry(&sc->leds, struct ath_led, list);
-+ /* If there is GPIO chip configured, free LED pin */
-+ if (sc->gpiochip)
-+ gpio_free(sc->gpiochip->gchip.base + led->gpio->gpio);
- list_del(&led->list);
- ath_led_brightness(&led->cdev, LED_OFF);
- led_classdev_unregister(&led->cdev);
-@@ -186,6 +196,117 @@ void ath_fill_led_pin(struct ath_softc *
- /* LED off, active low */
- ath9k_hw_set_gpio(ah, ah->led_pin, (ah->config.led_active_high) ? 0 : 1);
- }
-+
-+/***************/
-+/* GPIO Chip */
-+/***************/
-+
-+/* gpio_chip handler : set GPIO to input */
-+static int ath9k_gpio_pin_cfg_input(struct gpio_chip *chip, unsigned offset)
-+{
-+ struct ath9k_gpio_chip *gc = container_of(chip, struct ath9k_gpio_chip,
-+ gchip);
-+
-+ ath9k_hw_cfg_gpio_input(gc->sc->sc_ah, offset);
-+
-+ return 0;
-+}
-+
-+/* gpio_chip handler : set GPIO to output */
-+static int ath9k_gpio_pin_cfg_output(struct gpio_chip *chip, unsigned offset,
-+ int value)
-+{
-+ struct ath9k_gpio_chip *gc = container_of(chip, struct ath9k_gpio_chip,
-+ gchip);
-+
-+ ath9k_hw_cfg_output(gc->sc->sc_ah, offset,
-+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
-+ ath9k_hw_set_gpio(gc->sc->sc_ah, offset, value);
-+
-+ return 0;
-+}
-+
-+/* gpio_chip handler : query GPIO direction (0=out, 1=in) */
-+static int ath9k_gpio_pin_get_dir(struct gpio_chip *chip, unsigned offset)
-+{
-+ struct ath9k_gpio_chip *gc = container_of(chip, struct ath9k_gpio_chip,
-+ gchip);
-+ struct ath_hw *ah = gc->sc->sc_ah;
-+
-+ return !((REG_READ(ah, AR_GPIO_OE_OUT) >> (offset * 2)) & 3);
-+}
-+
-+/* gpio_chip handler : get GPIO pin value */
-+static int ath9k_gpio_pin_get(struct gpio_chip *chip, unsigned offset)
-+{
-+ struct ath9k_gpio_chip *gc = container_of(chip, struct ath9k_gpio_chip,
-+ gchip);
-+
-+ return ath9k_hw_gpio_get(gc->sc->sc_ah, offset);
-+}
-+
-+/* gpio_chip handler : set GPIO pin to value */
-+static void ath9k_gpio_pin_set(struct gpio_chip *chip, unsigned offset,
-+ int value)
-+{
-+ struct ath9k_gpio_chip *gc = container_of(chip, struct ath9k_gpio_chip,
-+ gchip);
-+
-+ ath9k_hw_set_gpio(gc->sc->sc_ah, offset, value);
-+}
-+
-+/* register GPIO chip */
-+void ath9k_register_gpio_chip(struct ath_softc *sc)
-+{
-+ struct ath9k_gpio_chip *gc;
-+ u16 ng;
-+
-+ /* for now only AR9285 and AR9287 are recognized */
-+ if (AR_SREV_9287(sc->sc_ah))
-+ ng = AR9287_NUM_GPIO;
-+ else if (AR_SREV_9285(sc->sc_ah))
-+ ng = AR9285_NUM_GPIO;
-+ else
-+ return;
-+
-+ gc = kzalloc(sizeof(struct ath9k_gpio_chip), GFP_KERNEL);
-+ if (!gc)
-+ return;
-+
-+ snprintf(gc->label, sizeof(gc->label), "ath9k-%s",
-+ wiphy_name(sc->hw->wiphy));
-+ gc->gchip.label = gc->label;
-+ gc->gchip.base = -1; /* determine base automatically */
-+ gc->gchip.ngpio = ng;
-+ gc->gchip.direction_input = ath9k_gpio_pin_cfg_input;
-+ gc->gchip.direction_output = ath9k_gpio_pin_cfg_output;
-+ gc->gchip.get_direction = ath9k_gpio_pin_get_dir;
-+ gc->gchip.get = ath9k_gpio_pin_get;
-+ gc->gchip.set = ath9k_gpio_pin_set;
-+ gc->gchip.owner = THIS_MODULE;
-+
-+ if (gpiochip_add(&gc->gchip)) {
-+ kfree(gc);
-+ return;
-+ }
-+
-+ sc->gpiochip = gc;
-+ gc->sc = sc;
-+}
-+
-+/* remove GPIO chip */
-+void ath9k_unregister_gpio_chip(struct ath_softc *sc)
-+{
-+ struct ath9k_gpio_chip *gc = sc->gpiochip;
-+
-+ if (!gc)
-+ return;
-+
-+ gpiochip_remove(&gc->gchip);
-+ kfree(gc);
-+ sc->gpiochip = NULL;
-+}
-+
- #endif
-
- /*******************/
---- a/drivers/net/wireless/ath/ath9k/init.c
-+++ b/drivers/net/wireless/ath/ath9k/init.c
-@@ -975,6 +975,7 @@ int ath9k_init_device(u16 devid, struct
- goto debug_cleanup;
- }
-
-+ ath9k_register_gpio_chip(sc);
- ath_init_leds(sc);
- ath_start_rfkill_poll(sc);
-
-@@ -1022,6 +1023,7 @@ void ath9k_deinit_device(struct ath_soft
-
- wiphy_rfkill_stop_polling(sc->hw->wiphy);
- ath_deinit_leds(sc);
-+ ath9k_unregister_gpio_chip(sc);
-
- ath9k_ps_restore(sc);
-
+++ /dev/null
-From: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
-Subject: [PATCH v5 5/8] mac80211: ath9k: enable GPIO buttons
-
-Enable platform-defined GPIO button support for ath9k device.
-Key poller is activated for attached platform buttons.
-Requires ath9k GPIO chip access.
-
-Signed-off-by: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
----
- drivers/net/wireless/ath/ath9k/ath9k.h | 16 ++++++
- drivers/net/wireless/ath/ath9k/gpio.c | 77 +++++++++++++++++++++++++++++++++
- drivers/net/wireless/ath/ath9k/init.c | 2
- include/linux/ath9k_platform.h | 4 +
- 4 files changed, 99 insertions(+)
-
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -825,6 +825,13 @@ int ath_create_gpio_led(struct ath_softc
- void ath9k_register_gpio_chip(struct ath_softc *sc);
- void ath9k_unregister_gpio_chip(struct ath_softc *sc);
-
-+/******************/
-+/* GPIO Buttons */
-+/******************/
-+
-+void ath9k_init_buttons(struct ath_softc *sc);
-+void ath9k_deinit_buttons(struct ath_softc *sc);
-+
- #else
- static inline void ath_init_leds(struct ath_softc *sc)
- {
-@@ -844,6 +851,14 @@ static inline void ath9k_register_gpio_c
- static inline void ath9k_unregister_gpio_chip(struct ath_softc *sc)
- {
- }
-+
-+static inline void ath9k_init_buttons(struct ath_softc *sc)
-+{
-+}
-+
-+static inline void ath9k_deinit_buttons(struct ath_softc *sc)
-+{
-+}
- #endif
-
- /************************/
-@@ -1040,6 +1055,7 @@ struct ath_softc {
- const char *led_default_trigger;
- struct list_head leds;
- struct ath9k_gpio_chip *gpiochip;
-+ struct platform_device *btnpdev; /* gpio-keys-polled */
- #endif
-
- #ifdef CPTCFG_ATH9K_DEBUGFS
---- a/drivers/net/wireless/ath/ath9k/gpio.c
-+++ b/drivers/net/wireless/ath/ath9k/gpio.c
-@@ -24,6 +24,8 @@
- #ifdef CPTCFG_MAC80211_LEDS
-
- #include <asm-generic/gpio.h>
-+#include <linux/platform_device.h>
-+#include <linux/gpio_keys.h>
-
- static void ath_led_brightness(struct led_classdev *led_cdev,
- enum led_brightness brightness)
-@@ -159,7 +161,7 @@ void ath_init_leds(struct ath_softc *sc)
- ath_create_gpio_led(sc, sc->sc_ah->led_pin, led_name, trigger,
- !sc->sc_ah->config.led_active_high);
-
-- if (!pdata)
-+ if (!pdata || !pdata->leds || !pdata->num_leds)
- return;
-
- for (i = 0; i < pdata->num_leds; i++)
-@@ -307,6 +309,63 @@ void ath9k_unregister_gpio_chip(struct a
- sc->gpiochip = NULL;
- }
-
-+/******************/
-+/* GPIO Buttons */
-+/******************/
-+
-+/* add GPIO buttons */
-+void ath9k_init_buttons(struct ath_softc *sc)
-+{
-+ struct ath9k_platform_data *pdata = sc->dev->platform_data;
-+ struct platform_device *pdev;
-+ struct gpio_keys_platform_data gkpdata;
-+ struct gpio_keys_button *bt;
-+ int i;
-+
-+ if (!sc->gpiochip)
-+ return;
-+
-+ if (!pdata || !pdata->btns || !pdata->num_btns)
-+ return;
-+
-+ bt = devm_kmemdup(sc->dev, pdata->btns,
-+ pdata->num_btns * sizeof(struct gpio_keys_button),
-+ GFP_KERNEL);
-+ if (!bt)
-+ return;
-+
-+ for (i = 0; i < pdata->num_btns; i++) {
-+ ath9k_hw_cfg_gpio_input(sc->sc_ah, pdata->btns[i].gpio);
-+ bt[i].gpio = sc->gpiochip->gchip.base + pdata->btns[i].gpio;
-+ }
-+
-+ memset(&gkpdata, 0, sizeof(struct gpio_keys_platform_data));
-+ gkpdata.buttons = bt;
-+ gkpdata.nbuttons = pdata->num_btns;
-+ gkpdata.poll_interval = pdata->btn_poll_interval;
-+
-+ pdev = platform_device_register_data(sc->dev, "gpio-keys-polled",
-+ PLATFORM_DEVID_AUTO, &gkpdata,
-+ sizeof(gkpdata));
-+ if (!IS_ERR_OR_NULL(pdev))
-+ sc->btnpdev = pdev;
-+ else {
-+ sc->btnpdev = NULL;
-+ devm_kfree(sc->dev, bt);
-+ }
-+}
-+
-+/* remove GPIO buttons */
-+void ath9k_deinit_buttons(struct ath_softc *sc)
-+{
-+ if (!sc->gpiochip || !sc->btnpdev)
-+ return;
-+
-+ platform_device_unregister(sc->btnpdev);
-+
-+ sc->btnpdev = NULL;
-+}
-+
- #endif
-
- /*******************/
---- a/drivers/net/wireless/ath/ath9k/init.c
-+++ b/drivers/net/wireless/ath/ath9k/init.c
-@@ -977,6 +977,7 @@ int ath9k_init_device(u16 devid, struct
-
- ath9k_register_gpio_chip(sc);
- ath_init_leds(sc);
-+ ath9k_init_buttons(sc);
- ath_start_rfkill_poll(sc);
-
- return 0;
-@@ -1022,6 +1023,7 @@ void ath9k_deinit_device(struct ath_soft
- ath9k_ps_wakeup(sc);
-
- wiphy_rfkill_stop_polling(sc->hw->wiphy);
-+ ath9k_deinit_buttons(sc);
- ath_deinit_leds(sc);
- ath9k_unregister_gpio_chip(sc);
-
---- a/include/linux/ath9k_platform.h
-+++ b/include/linux/ath9k_platform.h
-@@ -46,6 +46,10 @@ struct ath9k_platform_data {
- int num_leds;
- const struct gpio_led *leds;
- const char *led_name;
-+
-+ unsigned num_btns;
-+ const struct gpio_keys_button *btns;
-+ unsigned btn_poll_interval;
- };
-
- #endif /* _LINUX_ATH9K_PLATFORM_H */
projects / openwrt.git / commitdiff