From: Bartosz Golaszewski <brgl@bgdev.pl>
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>,
"Uwe Kleine-König" <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>
Subject: [PATCH v2 10/15] gpio: aggregator: use value returning setters
Date: Thu, 20 Feb 2025 10:57:07 +0100 [thread overview]
Message-ID: <20250220-gpio-set-retval-v2-10-bc4cfd38dae3@linaro.org> (raw)
In-Reply-To: <20250220-gpio-set-retval-v2-0-bc4cfd38dae3@linaro.org>
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.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
drivers/gpio/gpio-aggregator.c | 38 ++++++++++++++++++++++++--------------
1 file changed, 24 insertions(+), 14 deletions(-)
diff --git a/drivers/gpio/gpio-aggregator.c b/drivers/gpio/gpio-aggregator.c
index 65f41cc3eafc..e799599a06a1 100644
--- a/drivers/gpio/gpio-aggregator.c
+++ b/drivers/gpio/gpio-aggregator.c
@@ -358,25 +358,30 @@ static void gpio_fwd_delay(struct gpio_chip *chip, unsigned int offset, int valu
udelay(delay_us);
}
-static void gpio_fwd_set(struct gpio_chip *chip, unsigned int offset, int value)
+static int gpio_fwd_set(struct gpio_chip *chip, unsigned int offset, int value)
{
struct gpiochip_fwd *fwd = gpiochip_get_data(chip);
+ int ret;
if (chip->can_sleep)
- gpiod_set_value_cansleep(fwd->descs[offset], value);
+ ret = gpiod_set_value_cansleep(fwd->descs[offset], value);
else
- gpiod_set_value(fwd->descs[offset], value);
+ ret = gpiod_set_value(fwd->descs[offset], value);
+ if (ret)
+ return ret;
if (fwd->delay_timings)
gpio_fwd_delay(chip, offset, value);
+
+ return ret;
}
-static void gpio_fwd_set_multiple(struct gpiochip_fwd *fwd, unsigned long *mask,
- unsigned long *bits)
+static int gpio_fwd_set_multiple(struct gpiochip_fwd *fwd, unsigned long *mask,
+ unsigned long *bits)
{
struct gpio_desc **descs = fwd_tmp_descs(fwd);
unsigned long *values = fwd_tmp_values(fwd);
- unsigned int i, j = 0;
+ unsigned int i, j = 0, ret;
for_each_set_bit(i, mask, fwd->chip.ngpio) {
__assign_bit(j, values, test_bit(i, bits));
@@ -384,26 +389,31 @@ static void gpio_fwd_set_multiple(struct gpiochip_fwd *fwd, unsigned long *mask,
}
if (fwd->chip.can_sleep)
- gpiod_set_array_value_cansleep(j, descs, NULL, values);
+ ret = gpiod_set_array_value_cansleep(j, descs, NULL, values);
else
- gpiod_set_array_value(j, descs, NULL, values);
+ ret = gpiod_set_array_value(j, descs, NULL, values);
+
+ return ret;
}
-static void gpio_fwd_set_multiple_locked(struct gpio_chip *chip,
- unsigned long *mask, unsigned long *bits)
+static int gpio_fwd_set_multiple_locked(struct gpio_chip *chip,
+ unsigned long *mask, unsigned long *bits)
{
struct gpiochip_fwd *fwd = gpiochip_get_data(chip);
unsigned long flags;
+ int ret;
if (chip->can_sleep) {
mutex_lock(&fwd->mlock);
- gpio_fwd_set_multiple(fwd, mask, bits);
+ ret = gpio_fwd_set_multiple(fwd, mask, bits);
mutex_unlock(&fwd->mlock);
} else {
spin_lock_irqsave(&fwd->slock, flags);
- gpio_fwd_set_multiple(fwd, mask, bits);
+ ret = gpio_fwd_set_multiple(fwd, mask, bits);
spin_unlock_irqrestore(&fwd->slock, flags);
}
+
+ return ret;
}
static int gpio_fwd_set_config(struct gpio_chip *chip, unsigned int offset,
@@ -533,8 +543,8 @@ static struct gpiochip_fwd *gpiochip_fwd_create(struct device *dev,
chip->direction_output = gpio_fwd_direction_output;
chip->get = gpio_fwd_get;
chip->get_multiple = gpio_fwd_get_multiple_locked;
- chip->set = gpio_fwd_set;
- chip->set_multiple = gpio_fwd_set_multiple_locked;
+ chip->set_rv = gpio_fwd_set;
+ chip->set_multiple_rv = gpio_fwd_set_multiple_locked;
chip->to_irq = gpio_fwd_to_irq;
chip->base = -1;
chip->ngpio = ngpios;
--
2.45.2
next prev parent reply other threads:[~2025-02-20 9:57 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-20 9:56 [PATCH v2 00/15] gpiolib: indicate errors in value setters Bartosz Golaszewski
2025-02-20 9:56 ` [PATCH v2 01/15] leds: aw200xx: don't use return with gpiod_set_value() variants Bartosz Golaszewski
2025-03-06 22:51 ` (subset) " Lee Jones
2025-03-07 7:03 ` Bartosz Golaszewski
2025-03-13 15:29 ` Lee Jones
2025-02-20 9:56 ` [PATCH v2 02/15] gpiolib: make value setters have return values Bartosz Golaszewski
2025-02-20 9:57 ` [PATCH v2 03/15] gpiolib: wrap gpio_chip::set() Bartosz Golaszewski
2025-02-20 9:57 ` [PATCH v2 04/15] gpiolib: rework the wrapper around gpio_chip::set_multiple() Bartosz Golaszewski
2025-02-20 9:57 ` [PATCH v2 05/15] gpiolib: introduce gpio_chip setters that return values Bartosz Golaszewski
[not found] ` <CGME20250227140054eucas1p2bf6e3f2416e11e3c62a704682bf052bf@eucas1p2.samsung.com>
2025-02-27 14:00 ` Marek Szyprowski
2025-02-27 14:10 ` Bartosz Golaszewski
2025-02-20 9:57 ` [PATCH v2 06/15] gpio: sim: use value returning setters Bartosz Golaszewski
2025-02-20 9:57 ` [PATCH v2 07/15] gpio: regmap: " Bartosz Golaszewski
2025-02-20 10:08 ` Michael Walle
2025-02-20 9:57 ` [PATCH v2 08/15] gpio: pca953x: " Bartosz Golaszewski
2025-02-20 9:57 ` [PATCH v2 09/15] gpio: mockup: " Bartosz Golaszewski
2025-02-20 9:57 ` Bartosz Golaszewski [this message]
2025-02-20 9:57 ` [PATCH v2 11/15] gpio: max77650: " Bartosz Golaszewski
2025-02-20 9:57 ` [PATCH v2 12/15] gpio: latch: use lock guards Bartosz Golaszewski
2025-02-20 9:57 ` [PATCH v2 13/15] gpio: latch: use value returning setters Bartosz Golaszewski
2025-02-20 9:57 ` [PATCH v2 14/15] gpio: davinci: " Bartosz Golaszewski
2025-02-20 9:57 ` [PATCH v2 15/15] gpio: mvebu: " Bartosz Golaszewski
2025-02-21 9:33 ` [PATCH v2 00/15] gpiolib: indicate errors in value setters Uwe Kleine-König
2025-02-26 10:19 ` Bartosz Golaszewski
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