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pinctrl: armada-37xx: use correct OUTPUT_VAL register for GPIOs > 31

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commit 947c93eb29c2a581c0b0b6d5f21af3c2b7ff6d25 upstream.

The controller has two consecutive OUTPUT_VAL registers and both
holds output value for 32 GPIOs. Due to a missing adjustment, the
current code always uses the first register while setting the
output value whereas it should use the second one for GPIOs > 31.

Add the missing armada_37xx_update_reg() call to adjust the register
according to the 'offset' parameter of the function to fix the issue.

Cc: stable@vger.kernel.org
Fixes: 6702abb3bf ("pinctrl: armada-37xx: Fix direction_output() callback behavior")
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Link: https://lore.kernel.org/20250514-pinctrl-a37xx-fixes-v2-1-07e9ac1ab737@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gabor Juhos
2025-05-14 21:18:32 +02:00
committed by Greg Kroah-Hartman
parent 4afa9d57ed
commit 8f0f45a312
1 changed files with 3 additions and 0 deletions
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3
drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
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@@ -417,6 +417,7 @@ static int armada_37xx_gpio_direction_output(struct gpio_chip *chip,
unsigned int offset, int value)
{
struct armada_37xx_pinctrl *info = gpiochip_get_data(chip);
unsigned int val_offset = offset;
unsigned int reg = OUTPUT_EN;
unsigned int mask, val, ret;
@@ -429,6 +430,8 @@ static int armada_37xx_gpio_direction_output(struct gpio_chip *chip,
return ret;
reg = OUTPUT_VAL;
armada_37xx_update_reg(&reg, &val_offset);
val = value ? mask : 0;
regmap_update_bits(info->regmap, reg, mask, val);