linux-kernel - [PATCH 06/12] gpio: max3191x: remove unused callbacks

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Message-Id: <20250506-gpiochip-set-rv-gpio-part3-v1-6-0fbdea5a9667@linaro.org>
Date: Tue, 06 May 2025 11:01:49 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Vladimir Zapolskiy <vz@...ia.com>, 
 Piotr Wojtaszczyk <piotr.wojtaszczyk@...esys.com>, 
 Charles Keepax <ckeepax@...nsource.cirrus.com>, 
 Richard Fitzgerald <rf@...nsource.cirrus.com>, 
 Andy Shevchenko <andy@...nel.org>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-sound@...r.kernel.org, 
 patches@...nsource.cirrus.com, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 06/12] gpio: max3191x: remove unused callbacks

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

This driver is input-only and as such doesn't need to define empty set()
and direction_output() callbacks. Remove them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 drivers/gpio/gpio-max3191x.c | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/drivers/gpio/gpio-max3191x.c b/drivers/gpio/gpio-max3191x.c
index fc0708ab5192b..6e6504ab740a4 100644
--- a/drivers/gpio/gpio-max3191x.c
+++ b/drivers/gpio/gpio-max3191x.c
@@ -103,19 +103,6 @@ static int max3191x_direction_input(struct gpio_chip *gpio, unsigned int offset)
 	return 0;
 }
 
-static int max3191x_direction_output(struct gpio_chip *gpio,
-				     unsigned int offset, int value)
-{
-	return -EINVAL;
-}
-
-static void max3191x_set(struct gpio_chip *gpio, unsigned int offset, int value)
-{ }
-
-static void max3191x_set_multiple(struct gpio_chip *gpio, unsigned long *mask,
-				  unsigned long *bits)
-{ }
-
 static unsigned int max3191x_wordlen(struct max3191x_chip *max3191x)
 {
 	return max3191x->mode == STATUS_BYTE_ENABLED ? 2 : 1;
@@ -421,9 +408,6 @@ static int max3191x_probe(struct spi_device *spi)
 
 	max3191x->gpio.get_direction = max3191x_get_direction;
 	max3191x->gpio.direction_input = max3191x_direction_input;
-	max3191x->gpio.direction_output = max3191x_direction_output;
-	max3191x->gpio.set = max3191x_set;
-	max3191x->gpio.set_multiple = max3191x_set_multiple;
 	max3191x->gpio.get = max3191x_get;
 	max3191x->gpio.get_multiple = max3191x_get_multiple;
 	max3191x->gpio.set_config = max3191x_set_config;

-- 
2.45.2