linux-kernel - [PATCH 2/2] soc: renesas: pwc-rzv2m: use new GPIO line value setter callbacks

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Message-Id: <20250610-gpiochip-set-rv-soc-v1-2-1a0c36c9deed@linaro.org>
Date: Tue, 10 Jun 2025 14:38:51 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Qiang Zhao <qiang.zhao@....com>, 
 Christophe Leroy <christophe.leroy@...roup.eu>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 Geert Uytterhoeven <geert+renesas@...der.be>, 
 Magnus Damm <magnus.damm@...il.com>
Cc: linuxppc-dev@...ts.ozlabs.org, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org, 
 linux-renesas-soc@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 2/2] soc: renesas: pwc-rzv2m: 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/soc/renesas/pwc-rzv2m.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/renesas/pwc-rzv2m.c b/drivers/soc/renesas/pwc-rzv2m.c
index 452cee8d68bee7d04e7acbee6bd90dab457c77c3..4dbcb3d4a90ccd2796e26d6250aa246b32b09285 100644
--- a/drivers/soc/renesas/pwc-rzv2m.c
+++ b/drivers/soc/renesas/pwc-rzv2m.c
@@ -24,8 +24,8 @@ struct rzv2m_pwc_priv {
 	DECLARE_BITMAP(ch_en_bits, 2);
 };
 
-static void rzv2m_pwc_gpio_set(struct gpio_chip *chip, unsigned int offset,
-			       int value)
+static int rzv2m_pwc_gpio_set(struct gpio_chip *chip, unsigned int offset,
+			      int value)
 {
 	struct rzv2m_pwc_priv *priv = gpiochip_get_data(chip);
 	u32 reg;
@@ -38,6 +38,8 @@ static void rzv2m_pwc_gpio_set(struct gpio_chip *chip, unsigned int offset,
 	writel(reg, priv->base + PWC_GPIO);
 
 	assign_bit(offset, priv->ch_en_bits, value);
+
+	return 0;
 }
 
 static int rzv2m_pwc_gpio_get(struct gpio_chip *chip, unsigned int offset)
@@ -62,7 +64,7 @@ static const struct gpio_chip rzv2m_pwc_gc = {
 	.label = "gpio_rzv2m_pwc",
 	.owner = THIS_MODULE,
 	.get = rzv2m_pwc_gpio_get,
-	.set = rzv2m_pwc_gpio_set,
+	.set_rv = rzv2m_pwc_gpio_set,
 	.direction_output = rzv2m_pwc_gpio_direction_output,
 	.can_sleep = false,
 	.ngpio = 2,

-- 
2.48.1