linux-kernel - [PATCH 2/3] Input: adp5588 - use new GPIO line value setter callbacks

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Message-Id: <20250407-gpiochip-set-rv-input-v1-2-a8b45b18e79c@linaro.org>
Date: Mon, 07 Apr 2025 09:19:11 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Michael Hennerich <michael.hennerich@...log.com>, 
 Dmitry Torokhov <dmitry.torokhov@...il.com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>
Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-gpio@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 2/3] Input: adp5588 - 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/input/keyboard/adp5588-keys.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/input/keyboard/adp5588-keys.c b/drivers/input/keyboard/adp5588-keys.c
index dc734974ce06..2b2aca08423a 100644
--- a/drivers/input/keyboard/adp5588-keys.c
+++ b/drivers/input/keyboard/adp5588-keys.c
@@ -232,8 +232,8 @@ static int adp5588_gpio_get_value(struct gpio_chip *chip, unsigned int off)
 	return !!(val & bit);
 }
 
-static void adp5588_gpio_set_value(struct gpio_chip *chip,
-				   unsigned int off, int val)
+static int adp5588_gpio_set_value(struct gpio_chip *chip, unsigned int off,
+				  int val)
 {
 	struct adp5588_kpad *kpad = gpiochip_get_data(chip);
 	unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]);
@@ -246,7 +246,8 @@ static void adp5588_gpio_set_value(struct gpio_chip *chip,
 	else
 		kpad->dat_out[bank] &= ~bit;
 
-	adp5588_write(kpad->client, GPIO_DAT_OUT1 + bank, kpad->dat_out[bank]);
+	return adp5588_write(kpad->client, GPIO_DAT_OUT1 + bank,
+			     kpad->dat_out[bank]);
 }
 
 static int adp5588_gpio_set_config(struct gpio_chip *chip,  unsigned int off,
@@ -424,7 +425,7 @@ static int adp5588_gpio_add(struct adp5588_kpad *kpad)
 	kpad->gc.direction_input = adp5588_gpio_direction_input;
 	kpad->gc.direction_output = adp5588_gpio_direction_output;
 	kpad->gc.get = adp5588_gpio_get_value;
-	kpad->gc.set = adp5588_gpio_set_value;
+	kpad->gc.set_rv = adp5588_gpio_set_value;
 	kpad->gc.set_config = adp5588_gpio_set_config;
 	kpad->gc.can_sleep = 1;
 

-- 
2.45.2