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ath9k: add extra GPIO led support

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ar9550 or later chips, the AR_GPIO_IN_OUT register only can
control GPIO[0:3]. For the extra GPIO, use standard GPIO calls
instead of WMAC internal registers.

Signed-off-by: Miaoqing Pan <miaoqing@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Miaoqing Pan
2015-04-01 10:19:57 +08:00
committed by Kalle Valo
parent fcc658dabf
commit 61b559dea4
4 changed files with 27 additions and 3 deletions
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17
drivers/net/wireless/ath/ath9k/hw.c
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@@ -20,6 +20,7 @@
#include <linux/time.h>
#include <linux/bitops.h>
#include <linux/etherdevice.h>
#include <linux/gpio.h>
#include <asm/unaligned.h>
#include "hw.h"
@@ -2711,11 +2712,23 @@ void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val)
if (AR_SREV_9271(ah))
val = ~val;
REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
AR_GPIO_BIT(gpio));
if ((1 << gpio) & AR_GPIO_OE_OUT_MASK)
REG_RMW(ah, AR_GPIO_IN_OUT, ((val & 1) << gpio),
AR_GPIO_BIT(gpio));
else
gpio_set_value(gpio, val & 1);
}
EXPORT_SYMBOL(ath9k_hw_set_gpio);
void ath9k_hw_request_gpio(struct ath_hw *ah, u32 gpio, const char *label)
{
if (gpio >= ah->caps.num_gpio_pins)
return;
gpio_request_one(gpio, GPIOF_DIR_OUT | GPIOF_INIT_LOW, label);
}
EXPORT_SYMBOL(ath9k_hw_request_gpio);
void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna)
{
REG_WRITE(ah, AR_DEF_ANTENNA, (antenna & 0x7));