linux-kernel - [PATCH 01/16] pinctrl: sppctl: use new GPIO line value setter callbacks

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Message-Id: <20250612-gpiochip-set-rv-pinctrl-remaining-v1-1-556b0a530cd4@linaro.org>
Date: Thu, 12 Jun 2025 15:15:10 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Dvorkin Dmitry <dvorkin@...bo.com>, Wells Lu <wellslutw@...il.com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 Patrice Chotard <patrice.chotard@...s.st.com>, 
 Support Opensource <support.opensource@...semi.com>, 
 Baruch Siach <baruch@...s.co.il>, Sven Peter <sven@...nel.org>, 
 Janne Grunau <j@...nau.net>, Alyssa Rosenzweig <alyssa@...enzweig.io>, 
 Neal Gompa <neal@...pa.dev>, Viresh Kumar <vireshk@...nel.org>, 
 Lakshmi Sowjanya D <lakshmi.sowjanya.d@...el.com>, 
 Chen-Yu Tsai <wens@...e.org>, Jernej Skrabec <jernej.skrabec@...il.com>, 
 Samuel Holland <samuel@...lland.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-gpio@...r.kernel.org, 
 linux-kernel@...r.kernel.org, asahi@...ts.linux.dev, soc@...ts.linux.dev, 
 linux-sunxi@...ts.linux.dev, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 01/16] pinctrl: sppctl: 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/sunplus/sppctl.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/sunplus/sppctl.c b/drivers/pinctrl/sunplus/sppctl.c
index ae156f779a16b8c4bb91c4cb0d5d4363ebd15d25..3c3357f80889a95c46557b3f8129882d2ce96f6e 100644
--- a/drivers/pinctrl/sunplus/sppctl.c
+++ b/drivers/pinctrl/sunplus/sppctl.c
@@ -461,13 +461,15 @@ static int sppctl_gpio_get(struct gpio_chip *chip, unsigned int offset)
 	return (reg & BIT(bit_off)) ? 1 : 0;
 }
 
-static void sppctl_gpio_set(struct gpio_chip *chip, unsigned int offset, int val)
+static int sppctl_gpio_set(struct gpio_chip *chip, unsigned int offset, int val)
 {
 	struct sppctl_gpio_chip *spp_gchip = gpiochip_get_data(chip);
 	u32 reg_off, reg;
 
 	reg = sppctl_prep_moon_reg_and_offset(offset, &reg_off, val);
 	sppctl_gpio_out_writel(spp_gchip, reg, reg_off);
+
+	return 0;
 }
 
 static int sppctl_gpio_set_config(struct gpio_chip *chip, unsigned int offset,
@@ -545,7 +547,7 @@ static int sppctl_gpio_new(struct platform_device *pdev, struct sppctl_pdata *pc
 	gchip->direction_input  = sppctl_gpio_direction_input;
 	gchip->direction_output = sppctl_gpio_direction_output;
 	gchip->get              = sppctl_gpio_get;
-	gchip->set              = sppctl_gpio_set;
+	gchip->set_rv           = sppctl_gpio_set;
 	gchip->set_config       = sppctl_gpio_set_config;
 	gchip->dbg_show         = IS_ENABLED(CONFIG_DEBUG_FS) ?
 				  sppctl_gpio_dbg_show : NULL;

-- 
2.48.1