ath9k: fix unloading the module

Registering a GPIO chip with the ath9k device as parent prevents unload,
because the gpiochip core increases the module use count.
Unfortunately, the only way to avoid this at the moment seems to be to
register the GPIO chip without a parent device

Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/package/kernel/mac80211/patches/548-ath9k_enable_gpio_chip.patch b/package/kernel/mac80211/patches/548-ath9k_enable_gpio_chip.patch
index 31dac29ad77b89626d300d9a82ba3bd2cc2210a1..0b76d330c60c12e313b5988afee4b4d4683438ac 100644 (file)
--- a/package/kernel/mac80211/patches/548-ath9k_enable_gpio_chip.patch
+++ b/package/kernel/mac80211/patches/548-ath9k_enable_gpio_chip.patch
@@ -45,7 +45,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  #ifdef CPTCFG_ATH9K_DEBUGFS
 --- a/drivers/net/wireless/ath/ath9k/gpio.c
 +++ b/drivers/net/wireless/ath/ath9k/gpio.c
-@@ -16,13 +16,135 @@
+@@ -16,13 +16,130 @@
  
  #include "ath9k.h"
  #include <linux/ath9k_platform.h>
@@ -126,11 +126,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +      gc->sc = sc;
 +      snprintf(gc->label, sizeof(gc->label), "ath9k-%s",
 +               wiphy_name(sc->hw->wiphy));
-+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,5,0)
-+      gc->gchip.parent = sc->dev;
-+#else
-+      gc->gchip.dev = sc->dev;
-+#endif
++
 +      gc->gchip.label = gc->label;
 +      gc->gchip.base = -1;    /* determine base automatically */
 +      gc->gchip.ngpio = ah->caps.num_gpio_pins;
@@ -145,7 +141,6 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +              return;
 +      }
 +
-+      gc->gchip.owner = NULL;
 +      sc->gpiochip = gc;
 +}
 +
@@ -183,7 +178,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  static void ath_fill_led_pin(struct ath_softc *sc)
  {
        struct ath_hw *ah = sc->sc_ah;
-@@ -80,6 +202,12 @@ static int ath_add_led(struct ath_softc
+@@ -80,6 +197,12 @@ static int ath_add_led(struct ath_softc
        else
                ath9k_hw_set_gpio(sc->sc_ah, gpio->gpio, gpio->active_low);
  
@@ -196,7 +191,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
        return 0;
  }
  
-@@ -136,17 +264,24 @@ void ath_deinit_leds(struct ath_softc *s
+@@ -136,17 +259,24 @@ void ath_deinit_leds(struct ath_softc *s
  
        while (!list_empty(&sc->leds)) {
                led = list_first_entry(&sc->leds, struct ath_led, list);
@@ -221,7 +216,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
        char led_name[32];
        const char *trigger;
        int i;
-@@ -156,6 +291,15 @@ void ath_init_leds(struct ath_softc *sc)
+@@ -156,6 +286,15 @@ void ath_init_leds(struct ath_softc *sc)
        if (AR_SREV_9100(sc->sc_ah))
                return;
  
@@ -237,7 +232,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
        ath_fill_led_pin(sc);
  
        if (pdata && pdata->leds && pdata->num_leds)
-@@ -180,6 +324,7 @@ void ath_init_leds(struct ath_softc *sc)
+@@ -180,6 +319,7 @@ 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);
  }

diff --git a/package/kernel/mac80211/patches/549-ath9k_enable_gpio_buttons.patch b/package/kernel/mac80211/patches/549-ath9k_enable_gpio_buttons.patch
index e86e3e38bd69eeef66147d805894885e5dde64d1..e7282ab6b14626c90aff22b3febd7d43e722a150 100644 (file)
--- a/package/kernel/mac80211/patches/549-ath9k_enable_gpio_buttons.patch
+++ b/package/kernel/mac80211/patches/549-ath9k_enable_gpio_buttons.patch
@@ -29,7 +29,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  
  #ifdef CPTCFG_MAC80211_LEDS
  
-@@ -129,6 +131,67 @@ static void ath9k_unregister_gpio_chip(s
+@@ -124,6 +126,67 @@ static void ath9k_unregister_gpio_chip(s
        sc->gpiochip = NULL;
  }
  
@@ -97,7 +97,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  #else /* CONFIG_GPIOLIB */
  
  static inline void ath9k_register_gpio_chip(struct ath_softc *sc)
-@@ -139,6 +202,14 @@ static inline void ath9k_unregister_gpio
+@@ -134,6 +197,14 @@ static inline void ath9k_unregister_gpio
  {
  }
  
@@ -112,7 +112,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  #endif /* CONFIG_GPIOLIB */
  
  /********************************/
-@@ -262,6 +333,7 @@ void ath_deinit_leds(struct ath_softc *s
+@@ -257,6 +328,7 @@ void ath_deinit_leds(struct ath_softc *s
  {
        struct ath_led *led;
  
@@ -120,7 +120,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
        while (!list_empty(&sc->leds)) {
                led = list_first_entry(&sc->leds, struct ath_led, list);
  #ifdef CONFIG_GPIOLIB
-@@ -301,6 +373,7 @@ void ath_init_leds(struct ath_softc *sc)
+@@ -296,6 +368,7 @@ void ath_init_leds(struct ath_softc *sc)
        }
  
        ath_fill_led_pin(sc);