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Mon, 07 Apr 2025 00:18:16 -0700 (PDT) From: Bartosz Golaszewski Date: Mon, 07 Apr 2025 09:18:12 +0200 Subject: [PATCH 4/7] iio: adc: ti-ads7950: use new GPIO line value setter callbacks Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250407-gpiochip-set-rv-iio-v1-4-8431b003a145@linaro.org> References: <20250407-gpiochip-set-rv-iio-v1-0-8431b003a145@linaro.org> In-Reply-To: <20250407-gpiochip-set-rv-iio-v1-0-8431b003a145@linaro.org> To: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Linus Walleij , Bartosz Golaszewski , Cosmin Tanislav Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, Bartosz Golaszewski X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=2122; i=bartosz.golaszewski@linaro.org; h=from:subject:message-id; bh=2MIhT3UvouiWSb+JqPeZnzmfSS+HLRvIRYg5KBNUdDc=; b=owEBbQKS/ZANAwAKARGnLqAUcddyAcsmYgBn83wzY9NMbOxk6VjgP1/KsmPepcYuP2rlT9xHP EzAhaaVp/KJAjMEAAEKAB0WIQQWnetsC8PEYBPSx58Rpy6gFHHXcgUCZ/N8MwAKCRARpy6gFHHX cnZAEADY4UNBcOSE8f291z41AA1F2ND4+IVzRboTWFLvRw+4K1BaOrnd3ZLW0yDdokNkKCGXp1F 94KNmgK/lYxNmlQfVYU8N5Y1Pt6ss9q9f/d+VWanGAdv2UBp3I3d7OtrwgnmBAPB/lEzwicIsgt sfZsaPf5lNYyx3Jx9NIuCcfVRolZu/jwpY1uJcj8jTfZyM6eoAD2FTlqAR6WXBLaiAO9khXzzvr kqiRECyfrVntEMVIYATjhByrdw/x+NamoagDxFJZ7voEBVjZYLQ5b7zE+3U8B+4NFU/LJi6xCam zvRZ4l5N/ZP98/x0ypvjG+1nIrnNuZRQo+89QBDcgz+HPqC8cq/VyM067dUKJ/cIilIKi9JEjd4 bjRZvUdo1ymKm7HpwilINx+4nFjYu1a9Qji2IOUwvPFGbAFbtc/ndlgcnCO4rcyGy5CcERu1e49 Iu/iqffd0wgl6alpN7j0w44+MEwK3nw0sQSdS5AXD4MgWdJxrybBGmkpxcdsj9ynP8ryR5/t6iA WNIAAmUsJdTVSTJjFQIvAdEC5y+xUZ15rbP0FUmdaJ+wldYlpHskzODfNFucF+MEgxPtzsRFeq1 rf2cGaakRaIjryTMG8EFZSkR2pfnDh7Ls06Ao516+jPWA9WpN922ffqizx2UZg07tGkHTXTltOX nBMHrip0BRIKwDQ== X-Developer-Key: i=bartosz.golaszewski@linaro.org; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 From: Bartosz Golaszewski 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 --- drivers/iio/adc/ti-ads7950.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/iio/adc/ti-ads7950.c b/drivers/iio/adc/ti-ads7950.c index af28672aa803..0356ccf23fea 100644 --- a/drivers/iio/adc/ti-ads7950.c +++ b/drivers/iio/adc/ti-ads7950.c @@ -403,10 +403,11 @@ static const struct iio_info ti_ads7950_info =3D { .update_scan_mode =3D ti_ads7950_update_scan_mode, }; =20 -static void ti_ads7950_set(struct gpio_chip *chip, unsigned int offset, - int value) +static int ti_ads7950_set(struct gpio_chip *chip, unsigned int offset, + int value) { struct ti_ads7950_state *st =3D gpiochip_get_data(chip); + int ret; =20 mutex_lock(&st->slock); =20 @@ -416,9 +417,11 @@ static void ti_ads7950_set(struct gpio_chip *chip, uns= igned int offset, st->cmd_settings_bitmask &=3D ~BIT(offset); =20 st->single_tx =3D TI_ADS7950_MAN_CMD_SETTINGS(st); - spi_sync(st->spi, &st->scan_single_msg); + ret =3D spi_sync(st->spi, &st->scan_single_msg); =20 mutex_unlock(&st->slock); + + return ret; } =20 static int ti_ads7950_get(struct gpio_chip *chip, unsigned int offset) @@ -499,7 +502,11 @@ static int ti_ads7950_direction_input(struct gpio_chip= *chip, static int ti_ads7950_direction_output(struct gpio_chip *chip, unsigned int offset, int value) { - ti_ads7950_set(chip, offset, value); + int ret; + + ret =3D ti_ads7950_set(chip, offset, value); + if (ret) + return ret; =20 return _ti_ads7950_set_direction(chip, offset, 0); } @@ -641,7 +648,7 @@ static int ti_ads7950_probe(struct spi_device *spi) st->chip.direction_input =3D ti_ads7950_direction_input; st->chip.direction_output =3D ti_ads7950_direction_output; st->chip.get =3D ti_ads7950_get; - st->chip.set =3D ti_ads7950_set; + st->chip.set_rv =3D ti_ads7950_set; =20 ret =3D gpiochip_add_data(&st->chip, st); if (ret) { --=20 2.45.2