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authorMathias Kresin <dev@kresin.me>2018-12-07 09:42:09 +0100
committerMathias Kresin <dev@kresin.me>2018-12-12 12:28:26 +0100
commitd35f2a5565fc51fb277f72a8565c871ce1785588 (patch)
treead1745e407ec3399cd0df134664fe2a9d8c415c0 /package/kernel/mac80211/patches/ath
parent0fdfdaef2dc61ce528afa8e08a77bde61013ae9e (diff)
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ath9k: register GPIO chip for OF targets
This partitialy reverts commit ccab68f2d399. Registering the GPIO chip without a parent device completely breaks the ath9k GPIOs for device tree targets. As long as boards using the devicetree don't have the gpio-controller property set for the ath9k node, the unloading of the driver works as expected. Register the GPIO chip with the ath9k device as parent only for OF targets to find a trade-off between the needs of driver developers and the broken LEDs and buttons seen by users. Signed-off-by: Mathias Kresin <dev@kresin.me>
Diffstat (limited to 'package/kernel/mac80211/patches/ath')
-rw-r--r--package/kernel/mac80211/patches/ath/548-ath9k_enable_gpio_chip.patch21
-rw-r--r--package/kernel/mac80211/patches/ath/549-ath9k_enable_gpio_buttons.patch8
2 files changed, 19 insertions, 10 deletions
diff --git a/package/kernel/mac80211/patches/ath/548-ath9k_enable_gpio_chip.patch b/package/kernel/mac80211/patches/ath/548-ath9k_enable_gpio_chip.patch
index 0b76d330c6..eb9eb26a74 100644
--- a/package/kernel/mac80211/patches/ath/548-ath9k_enable_gpio_chip.patch
+++ b/package/kernel/mac80211/patches/ath/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 +16,130 @@
+@@ -16,13 +16,139 @@
#include "ath9k.h"
#include <linux/ath9k_platform.h>
@@ -126,7 +126,13 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ gc->sc = sc;
+ snprintf(gc->label, sizeof(gc->label), "ath9k-%s",
+ wiphy_name(sc->hw->wiphy));
-+
++#ifdef CONFIG_OF
++#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,5,0)
++ gc->gchip.parent = sc->dev;
++#else
++ gc->gchip.dev = sc->dev;
++#endif
++#endif
+ gc->gchip.label = gc->label;
+ gc->gchip.base = -1; /* determine base automatically */
+ gc->gchip.ngpio = ah->caps.num_gpio_pins;
@@ -141,6 +147,9 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
+ return;
+ }
+
++#ifdef CONFIG_OF
++ gc->gchip.owner = NULL;
++#endif
+ sc->gpiochip = gc;
+}
+
@@ -178,7 +187,7 @@ 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 +197,12 @@ static int ath_add_led(struct ath_softc
+@@ -80,6 +206,12 @@ static int ath_add_led(struct ath_softc
else
ath9k_hw_set_gpio(sc->sc_ah, gpio->gpio, gpio->active_low);
@@ -191,7 +200,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
return 0;
}
-@@ -136,17 +259,24 @@ void ath_deinit_leds(struct ath_softc *s
+@@ -136,17 +268,24 @@ void ath_deinit_leds(struct ath_softc *s
while (!list_empty(&sc->leds)) {
led = list_first_entry(&sc->leds, struct ath_led, list);
@@ -216,7 +225,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
char led_name[32];
const char *trigger;
int i;
-@@ -156,6 +286,15 @@ void ath_init_leds(struct ath_softc *sc)
+@@ -156,6 +295,15 @@ void ath_init_leds(struct ath_softc *sc)
if (AR_SREV_9100(sc->sc_ah))
return;
@@ -232,7 +241,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
ath_fill_led_pin(sc);
if (pdata && pdata->leds && pdata->num_leds)
-@@ -180,6 +319,7 @@ void ath_init_leds(struct ath_softc *sc)
+@@ -180,6 +328,7 @@ 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/ath/549-ath9k_enable_gpio_buttons.patch b/package/kernel/mac80211/patches/ath/549-ath9k_enable_gpio_buttons.patch
index e7282ab6b1..bd71b75e76 100644
--- a/package/kernel/mac80211/patches/ath/549-ath9k_enable_gpio_buttons.patch
+++ b/package/kernel/mac80211/patches/ath/549-ath9k_enable_gpio_buttons.patch
@@ -29,7 +29,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
#ifdef CPTCFG_MAC80211_LEDS
-@@ -124,6 +126,67 @@ static void ath9k_unregister_gpio_chip(s
+@@ -133,6 +135,67 @@ 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)
-@@ -134,6 +197,14 @@ static inline void ath9k_unregister_gpio
+@@ -143,6 +206,14 @@ static inline void ath9k_unregister_gpio
{
}
@@ -112,7 +112,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
#endif /* CONFIG_GPIOLIB */
/********************************/
-@@ -257,6 +328,7 @@ void ath_deinit_leds(struct ath_softc *s
+@@ -266,6 +337,7 @@ 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
-@@ -296,6 +368,7 @@ void ath_init_leds(struct ath_softc *sc)
+@@ -305,6 +377,7 @@ void ath_init_leds(struct ath_softc *sc)
}
ath_fill_led_pin(sc);