[05/14] gpio: sim: use value returning setters

Message ID	20250211-gpio-set-retval-v1-5-52d3d613d7d3@linaro.org
State	New
Headers	show Received: from mail-wr1-f54.google.com (mail-wr1-f54.google.com [209.85.221.54]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 37F0F1FF7B7 for <linux-gpio@vger.kernel.org>; Tue, 11 Feb 2025 12:10:07 +0000 (UTC) From: Bartosz Golaszewski <brgl@bgdev.pl> Date: Tue, 11 Feb 2025 13:09:39 +0100 Subject: [PATCH 05/14] gpio: sim: use value returning setters Precedence: bulk MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250211-gpio-set-retval-v1-5-52d3d613d7d3@linaro.org> References: <20250211-gpio-set-retval-v1-0-52d3d613d7d3@linaro.org> In-Reply-To: <20250211-gpio-set-retval-v1-0-52d3d613d7d3@linaro.org> To: Linus Walleij <linus.walleij@linaro.org>, Bartosz Golaszewski <brgl@bgdev.pl>, Michael Walle <mwalle@kernel.org>, Bamvor Jian Zhang <bamv2005@gmail.com>, Geert Uytterhoeven <geert+renesas@glider.be>, Keerthy <j-keerthy@ti.com>, =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= <ukleinek@kernel.org> Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pwm@vger.kernel.org, Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Series	gpiolib: indicate errors in value setters \| expand [00/14] gpiolib: indicate errors in value setters [01/14] gpiolib: make value setters have return values [02/14] gpiolib: wrap gpio_chip::set() [03/14] gpiolib: rework the wrapper around gpio_chip::set_multiple() [04/14] gpiolib: introduce gpio_chip setters that return values [05/14] gpio: sim: use value returning setters [06/14] gpio: regmap: use value returning setters [07/14] gpio: pca953x: use value returning setters [08/14] gpio: mockup: use value returning setters [09/14] gpio: aggregator: use value returning setters [10/14] gpio: max77650: use value returning setters [11/14] gpio: latch: use lock guards [12/14] gpio: latch: use value returning setters [13/14] gpio: davinci: use value returning setters [14/14] gpio: mvebu: use value returning setters

Message ID

20250211-gpio-set-retval-v1-5-52d3d613d7d3@linaro.org

State

New

Headers

From: Bartosz Golaszewski <brgl@bgdev.pl>
Date: Tue, 11 Feb 2025 13:09:39 +0100
Subject: [PATCH 05/14] gpio: sim: use value returning setters
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Message-Id: <20250211-gpio-set-retval-v1-5-52d3d613d7d3@linaro.org>
References: <20250211-gpio-set-retval-v1-0-52d3d613d7d3@linaro.org>
In-Reply-To: <20250211-gpio-set-retval-v1-0-52d3d613d7d3@linaro.org>
To: Linus Walleij <linus.walleij@linaro.org>,
  Bartosz Golaszewski <brgl@bgdev.pl>, Michael Walle <mwalle@kernel.org>,
  Bamvor Jian Zhang <bamv2005@gmail.com>,
  Geert Uytterhoeven <geert+renesas@glider.be>, Keerthy <j-keerthy@ti.com>,
	=?utf-8?q?Uwe_Kleine-K=C3=B6nig?= <ukleinek@kernel.org>
Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
 linux-pwm@vger.kernel.org,
 Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

Series

gpiolib: indicate errors in value setters | expand

Commit Message

Bartosz Golaszewski Feb. 11, 2025, 12:09 p.m. UTC

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

struct gpio_chip now has additional variants of the set(_multiple)
driver callbacks that return an integer to indicate success or failure.
Convert the driver to using them.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
 drivers/gpio/gpio-sim.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c
index b6c230fab840..b3baa7e872bd 100644
--- a/drivers/gpio/gpio-sim.c
+++ b/drivers/gpio/gpio-sim.c
@@ -119,12 +119,14 @@  static int gpio_sim_get(struct gpio_chip *gc, unsigned int offset)
 	return !!test_bit(offset, chip->value_map);
 }
 
-static void gpio_sim_set(struct gpio_chip *gc, unsigned int offset, int value)
+static int gpio_sim_set(struct gpio_chip *gc, unsigned int offset, int value)
 {
 	struct gpio_sim_chip *chip = gpiochip_get_data(gc);
 
 	scoped_guard(mutex, &chip->lock)
 		__assign_bit(offset, chip->value_map, value);
+
+	return 0;
 }
 
 static int gpio_sim_get_multiple(struct gpio_chip *gc,
@@ -138,14 +140,16 @@  static int gpio_sim_get_multiple(struct gpio_chip *gc,
 	return 0;
 }
 
-static void gpio_sim_set_multiple(struct gpio_chip *gc,
-				  unsigned long *mask, unsigned long *bits)
+static int gpio_sim_set_multiple(struct gpio_chip *gc,
+				 unsigned long *mask, unsigned long *bits)
 {
 	struct gpio_sim_chip *chip = gpiochip_get_data(gc);
 
 	scoped_guard(mutex, &chip->lock)
 		bitmap_replace(chip->value_map, chip->value_map, bits, mask,
 			       gc->ngpio);
+
+	return 0;
 }
 
 static int gpio_sim_direction_output(struct gpio_chip *gc,
@@ -481,9 +485,9 @@  static int gpio_sim_add_bank(struct fwnode_handle *swnode, struct device *dev)
 	gc->parent = dev;
 	gc->fwnode = swnode;
 	gc->get = gpio_sim_get;
-	gc->set = gpio_sim_set;
+	gc->set_rv = gpio_sim_set;
 	gc->get_multiple = gpio_sim_get_multiple;
-	gc->set_multiple = gpio_sim_set_multiple;
+	gc->set_multiple_rv = gpio_sim_set_multiple;
 	gc->direction_output = gpio_sim_direction_output;
 	gc->direction_input = gpio_sim_direction_input;
 	gc->get_direction = gpio_sim_get_direction;

[05/14] gpio: sim: use value returning setters

Commit Message

Patch