linux-kernel - [PATCH 2/6] pinctrl: qcom: msm: use new GPIO line value setter callbacks

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Message-Id: <20250410-gpiochip-set-rv-pinctrl-qcom-v1-2-6a6891338aae@linaro.org>
Date: Thu, 10 Apr 2025 11:34:44 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Bjorn Andersson <andersson@...nel.org>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>
Cc: linux-arm-msm@...r.kernel.org, linux-gpio@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 2/6] pinctrl: qcom: msm: use new GPIO line value setter
 callbacks

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 drivers/pinctrl/qcom/pinctrl-msm.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c
index 82f0cc43bbf4..9ec15ae4a104 100644
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
@@ -637,7 +637,7 @@ static int msm_gpio_get(struct gpio_chip *chip, unsigned offset)
 	return !!(val & BIT(g->in_bit));
 }
 
-static void msm_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+static int msm_gpio_set(struct gpio_chip *chip, unsigned int offset, int value)
 {
 	const struct msm_pingroup *g;
 	struct msm_pinctrl *pctrl = gpiochip_get_data(chip);
@@ -656,6 +656,8 @@ static void msm_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 	msm_writel_io(val, pctrl, g);
 
 	raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+
+	return 0;
 }
 
 #ifdef CONFIG_DEBUG_FS
@@ -792,7 +794,7 @@ static const struct gpio_chip msm_gpio_template = {
 	.direction_output = msm_gpio_direction_output,
 	.get_direction    = msm_gpio_get_direction,
 	.get              = msm_gpio_get,
-	.set              = msm_gpio_set,
+	.set_rv           = msm_gpio_set,
 	.request          = gpiochip_generic_request,
 	.free             = gpiochip_generic_free,
 	.dbg_show         = msm_gpio_dbg_show,

-- 
2.45.2