1bfcc1ea8a
Brings lots of driver updates and API changes needed for mt76 updates. Disable iwlwifi and ath11k on 5.15, since backport is too difficult, and the only remaining targets won't need those drivers. Signed-off-by: Felix Fietkau <nbd@nbd.name>
131 lines
3.3 KiB
Diff
131 lines
3.3 KiB
Diff
From: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
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Subject: [PATCH v5 5/8] mac80211: ath9k: enable GPIO buttons
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Enable platform-defined GPIO button support for ath9k device.
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Key poller is activated for attached platform buttons.
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Requires ath9k GPIO chip access.
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Signed-off-by: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/drivers/net/wireless/ath/ath9k/ath9k.h
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+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
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@@ -1056,6 +1056,7 @@ struct ath_softc {
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struct list_head leds;
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#ifdef CONFIG_GPIOLIB
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struct ath9k_gpio_chip *gpiochip;
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+ struct platform_device *btnpdev; /* gpio-keys-polled */
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#endif
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#endif
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--- a/drivers/net/wireless/ath/ath9k/gpio.c
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+++ b/drivers/net/wireless/ath/ath9k/gpio.c
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@@ -17,6 +17,8 @@
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#include "ath9k.h"
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#include <linux/ath9k_platform.h>
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#include <linux/gpio.h>
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+#include <linux/platform_device.h>
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+#include <linux/gpio_keys.h>
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#ifdef CPTCFG_MAC80211_LEDS
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@@ -133,6 +135,67 @@ static void ath9k_unregister_gpio_chip(s
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sc->gpiochip = NULL;
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}
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+/******************/
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+/* GPIO Buttons */
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+/******************/
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+
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+/* add GPIO buttons */
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+static void ath9k_init_buttons(struct ath_softc *sc)
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+{
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+ struct ath9k_platform_data *pdata = sc->dev->platform_data;
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+ struct platform_device *pdev;
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+ struct gpio_keys_platform_data gkpdata;
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+ struct gpio_keys_button *bt;
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+ int i;
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+
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+ if (!sc->gpiochip)
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+ return;
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+
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+ if (!pdata || !pdata->btns || !pdata->num_btns)
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+ return;
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+
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+ bt = devm_kmemdup(sc->dev, pdata->btns,
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+ pdata->num_btns * sizeof(struct gpio_keys_button),
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+ GFP_KERNEL);
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+ if (!bt)
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+ return;
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+
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+ for (i = 0; i < pdata->num_btns; i++) {
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+ if (pdata->btns[i].gpio == sc->sc_ah->led_pin)
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+ sc->sc_ah->led_pin = -1;
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+
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+ ath9k_hw_gpio_request_in(sc->sc_ah, pdata->btns[i].gpio,
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+ "ath9k-gpio");
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+ bt[i].gpio = sc->gpiochip->gchip.base + pdata->btns[i].gpio;
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+ }
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+
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+ memset(&gkpdata, 0, sizeof(struct gpio_keys_platform_data));
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+ gkpdata.buttons = bt;
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+ gkpdata.nbuttons = pdata->num_btns;
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+ gkpdata.poll_interval = pdata->btn_poll_interval;
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+
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+ pdev = platform_device_register_data(sc->dev, "gpio-keys-polled",
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+ PLATFORM_DEVID_AUTO, &gkpdata,
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+ sizeof(gkpdata));
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+ if (!IS_ERR_OR_NULL(pdev))
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+ sc->btnpdev = pdev;
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+ else {
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+ sc->btnpdev = NULL;
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+ devm_kfree(sc->dev, bt);
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+ }
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+}
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+
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+/* remove GPIO buttons */
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+static void ath9k_deinit_buttons(struct ath_softc *sc)
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+{
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+ if (!sc->gpiochip || !sc->btnpdev)
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+ return;
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+
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+ platform_device_unregister(sc->btnpdev);
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+
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+ sc->btnpdev = NULL;
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+}
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+
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#else /* CONFIG_GPIOLIB */
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static inline void ath9k_register_gpio_chip(struct ath_softc *sc)
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@@ -143,6 +206,14 @@ static inline void ath9k_unregister_gpio
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{
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}
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+static inline void ath9k_init_buttons(struct ath_softc *sc)
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+{
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+}
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+
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+static inline void ath9k_deinit_buttons(struct ath_softc *sc)
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+{
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+}
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+
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#endif /* CONFIG_GPIOLIB */
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/********************************/
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@@ -266,6 +337,7 @@ void ath_deinit_leds(struct ath_softc *s
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{
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struct ath_led *led;
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+ ath9k_deinit_buttons(sc);
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while (!list_empty(&sc->leds)) {
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led = list_first_entry(&sc->leds, struct ath_led, list);
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#ifdef CONFIG_GPIOLIB
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@@ -305,6 +377,7 @@ void ath_init_leds(struct ath_softc *sc)
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}
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ath_fill_led_pin(sc);
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+ ath9k_init_buttons(sc);
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if (pdata && pdata->leds && pdata->num_leds)
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for (i = 0; i < pdata->num_leds; i++) {
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