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authorMichal Cieslakiewicz <michal.cieslakiewicz@wp.pl>2019-12-22 21:51:48 +0100
committerJohn Crispin <john@phrozen.org>2020-01-15 20:55:31 +0100
commit4a0a1fc91c4f28e431fa52ba009f2852acbfe07d (patch)
treeb4094462bc2de4f6ff342b6bf99cdcb6c057a73e /package/kernel
parent5f07b6f367ff10ecc029e0b9e41b9fc5eac6968e (diff)
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mac80211: ath9k: add GPIO mask dts property
This patch adds 'qca,gpio-mask=<u32>' device tree property to ath9k node. This optional setting is a hack and should only be used in very special (and rare) cases when a button or LED is wired to a GPIO pin normally masked out (due to being one-way etc). Netgear WNDR4300 v2 is one such example - it uses GPI9 for RFKILL. See ath9k/reg.h *_GPIO_MASK constants. Use with caution and expect to see stream of kernel warnings if wrong mask value is provided. Signed-off-by: Michal Cieslakiewicz <michal.cieslakiewicz@wp.pl>
Diffstat (limited to 'package/kernel')
-rw-r--r--package/kernel/mac80211/patches/ath/553-ath9k_of_gpio_mask.patch25
1 files changed, 25 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/ath/553-ath9k_of_gpio_mask.patch b/package/kernel/mac80211/patches/ath/553-ath9k_of_gpio_mask.patch
new file mode 100644
index 0000000000..72b99050c4
--- /dev/null
+++ b/package/kernel/mac80211/patches/ath/553-ath9k_of_gpio_mask.patch
@@ -0,0 +1,25 @@
+--- a/drivers/net/wireless/ath/ath9k/init.c
++++ b/drivers/net/wireless/ath/ath9k/init.c
+@@ -654,6 +654,12 @@ static int ath9k_of_init(struct ath_soft
+ return 0;
+ }
+
++static void ath9k_of_gpio_mask(struct ath_softc *sc)
++{
++ of_property_read_u32(sc->dev->of_node, "qca,gpio-mask",
++ &sc->sc_ah->caps.gpio_mask);
++}
++
+ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
+ const struct ath_bus_ops *bus_ops)
+ {
+@@ -758,6 +764,9 @@ static int ath9k_init_softc(u16 devid, s
+ if (ret)
+ goto err_hw;
+
++ /* GPIO mask quirk */
++ ath9k_of_gpio_mask(sc);
++
+ ret = ath9k_init_queues(sc);
+ if (ret)
+ goto err_queues;