ath9k: add an interface for overriding the value of specific GPIO pins
Some devices control antenna settings or other things through GPIO pins
of the wireless interface. Add a debugfs interface for changing those
and keeping them set across card resets.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 9fe8693..a762cad 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -1119,6 +1119,12 @@
debugfs_create_file("regdump", S_IRUSR, sc->debug.debugfs_phy, sc,
&fops_regdump);
+ debugfs_create_u32("gpio_mask", S_IRUSR | S_IWUSR,
+ sc->debug.debugfs_phy, &sc->sc_ah->gpio_mask);
+
+ debugfs_create_u32("gpio_val", S_IRUSR | S_IWUSR,
+ sc->debug.debugfs_phy, &sc->sc_ah->gpio_val);
+
sc->debug.regidx = 0;
return 0;
}