linux-kernel - [PATCH 08/12] ASoC: codecs: idt821034: use new GPIO line value setter callbacks

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250408-gpiochip-set-rv-sound-v1-8-dd54b6ca1ef9@linaro.org>
Date: Tue, 08 Apr 2025 09:38:26 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 Peter Ujfalusi <peter.ujfalusi@...il.com>, 
 Oder Chiou <oder_chiou@...ltek.com>, Shenghao Ding <shenghao-ding@...com>, 
 Kevin Lu <kevin-lu@...com>, Baojun Xu <baojun.xu@...com>, 
 Herve Codina <herve.codina@...tlin.com>, 
 David Rhodes <david.rhodes@...rus.com>, 
 Richard Fitzgerald <rf@...nsource.cirrus.com>
Cc: linux-sound@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-gpio@...r.kernel.org, patches@...nsource.cirrus.com, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 08/12] ASoC: codecs: idt821034: 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>
---
 sound/soc/codecs/idt821034.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/sound/soc/codecs/idt821034.c b/sound/soc/codecs/idt821034.c
index cb7a68c799f8..55e90604bbaa 100644
--- a/sound/soc/codecs/idt821034.c
+++ b/sound/soc/codecs/idt821034.c
@@ -957,7 +957,8 @@ static const struct snd_soc_component_driver idt821034_component_driver = {
 #define IDT821034_GPIO_OFFSET_TO_SLIC_CHANNEL(_offset) (((_offset) / 5) % 4)
 #define IDT821034_GPIO_OFFSET_TO_SLIC_MASK(_offset)    BIT((_offset) % 5)
 
-static void idt821034_chip_gpio_set(struct gpio_chip *c, unsigned int offset, int val)
+static int idt821034_chip_gpio_set(struct gpio_chip *c, unsigned int offset,
+				   int val)
 {
 	u8 ch = IDT821034_GPIO_OFFSET_TO_SLIC_CHANNEL(offset);
 	u8 mask = IDT821034_GPIO_OFFSET_TO_SLIC_MASK(offset);
@@ -973,12 +974,14 @@ static void idt821034_chip_gpio_set(struct gpio_chip *c, unsigned int offset, in
 	else
 		slic_raw &= ~mask;
 	ret = idt821034_write_slic_raw(idt821034, ch, slic_raw);
-	if (ret) {
-		dev_err(&idt821034->spi->dev, "set gpio %d (%u, 0x%x) failed (%d)\n",
-			offset, ch, mask, ret);
-	}
 
 	mutex_unlock(&idt821034->mutex);
+
+	if (ret)
+		dev_err(&idt821034->spi->dev, "set gpio %d (%u, 0x%x) failed (%d)\n",
+			offset, ch, mask, ret);
+
+	return ret;
 }
 
 static int idt821034_chip_gpio_get(struct gpio_chip *c, unsigned int offset)
@@ -1054,7 +1057,9 @@ static int idt821034_chip_direction_output(struct gpio_chip *c, unsigned int off
 	u8 slic_conf;
 	int ret;
 
-	idt821034_chip_gpio_set(c, offset, val);
+	ret = idt821034_chip_gpio_set(c, offset, val);
+	if (ret)
+		return ret;
 
 	mutex_lock(&idt821034->mutex);
 
@@ -1112,7 +1117,7 @@ static int idt821034_gpio_init(struct idt821034 *idt821034)
 	idt821034->gpio_chip.direction_input = idt821034_chip_direction_input;
 	idt821034->gpio_chip.direction_output = idt821034_chip_direction_output;
 	idt821034->gpio_chip.get = idt821034_chip_gpio_get;
-	idt821034->gpio_chip.set = idt821034_chip_gpio_set;
+	idt821034->gpio_chip.set_rv = idt821034_chip_gpio_set;
 	idt821034->gpio_chip.can_sleep = true;
 
 	return devm_gpiochip_add_data(&idt821034->spi->dev, &idt821034->gpio_chip,

-- 
2.45.2