diff options
Diffstat (limited to 'package')
| -rw-r--r-- | package/kernel/mac80211/patches/550-ath9k_enable_gpio_buttons.patch | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/550-ath9k_enable_gpio_buttons.patch b/package/kernel/mac80211/patches/550-ath9k_enable_gpio_buttons.patch new file mode 100644 index 0000000000..e3a8cece94 --- /dev/null +++ b/package/kernel/mac80211/patches/550-ath9k_enable_gpio_buttons.patch @@ -0,0 +1,169 @@ +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 */ |