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Tue, 17 Jun 2025 05:24:43 -0700 (PDT) From: Bartosz Golaszewski Date: Tue, 17 Jun 2025 14:24:24 +0200 Subject: [PATCH 02/12] gpio: pcf857x: 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: <20250617-gpiochip-set-rv-gpio-v1-2-903703881fa2@linaro.org> References: <20250617-gpiochip-set-rv-gpio-v1-0-903703881fa2@linaro.org> In-Reply-To: <20250617-gpiochip-set-rv-gpio-v1-0-903703881fa2@linaro.org> To: Linus Walleij , Bartosz Golaszewski , Andy Shevchenko , Orson Zhai , Baolin Wang , Chunyan Zhang , Robert Jarzmik , Heiko Stuebner Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, Bartosz Golaszewski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2108; i=bartosz.golaszewski@linaro.org; h=from:subject:message-id; bh=UjdVhHBdj/MT105x/Q2pFxBb2AP6k98PFv96j+C3ycI=; b=owEBbQKS/ZANAwAKARGnLqAUcddyAcsmYgBoUV6GFFklv2v6R87MrAXNHZyNzFP4WjIs26eeM jaLuHbEIROJAjMEAAEKAB0WIQQWnetsC8PEYBPSx58Rpy6gFHHXcgUCaFFehgAKCRARpy6gFHHX cp0pD/4jqSNOj2xQtdCVE8aUY/oYvVBdI0smTuI1wV5vjnOYk/XOkXPxvKf8cxCKJepJiLLS75O 9uEpobTggd4GQR20kr2zy6RaQ1C/oR5/3lZ1XIMmdei4517WPUhe04bBOwP66+tx9x2+QCUOfxb OiDQPg7BqqU9Ze4mcCV6OzO2wd20MX85sbGuxWFYNnKNLPiJECCNX0MUGR6ktbXHJbtHmeoT+1S WeKPV3ZTVNqqeEpizUAc0KyDaquEVYil9JFsAr9MbXMwKtT/v95oJEaMoQe38czxMsnTmnhclZR PpVpK2jejmCrdCpG8IS55/a1qyLTuE3SNcfHnxBZeyEeHhStByjQ6V7xLyJlZGeyM20g+oojNAy d5Q9OHc7sWW19ebIZdW1MJtHbpv4FEQ+h4M2lyLVqVMs6G9YagQgkFrJgQI1VhVXqYJu4H5fjoe nBbzp8EnwzOoqu/qNJW8eL4Vov1WkldJYd7Rr0dHWxsESRABq9OEeqRL0MdnMEUJUmtQcsrG/kW f5aKK2U+oh9dXNTgl2ZydapCMP/mB8LSMlIwR4cxuFbdTE+W393h3xmAAcARFBX42BeiJszBJg8 M4B52HDLRDWzhV7N9lrLgjf6FPQNmi4aM8vrs0vDtJLHo3t0dRpXziFICkKDKqTy+7NuyG8sBue U03dII3k8j0I+uA== 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/gpio/gpio-pcf857x.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c index 2e5f5d7f886598318b753304e7e0efca54ff8b69..a042036803336439d8e164fcfbd= 0263b0e84f3a4 100644 --- a/drivers/gpio/gpio-pcf857x.c +++ b/drivers/gpio/gpio-pcf857x.c @@ -171,21 +171,24 @@ static int pcf857x_output(struct gpio_chip *chip, uns= igned int offset, int value return status; } =20 -static void pcf857x_set(struct gpio_chip *chip, unsigned int offset, int v= alue) +static int pcf857x_set(struct gpio_chip *chip, unsigned int offset, int va= lue) { - pcf857x_output(chip, offset, value); + return pcf857x_output(chip, offset, value); } =20 -static void pcf857x_set_multiple(struct gpio_chip *chip, unsigned long *ma= sk, - unsigned long *bits) +static int pcf857x_set_multiple(struct gpio_chip *chip, unsigned long *mas= k, + unsigned long *bits) { struct pcf857x *gpio =3D gpiochip_get_data(chip); + int status; =20 mutex_lock(&gpio->lock); gpio->out &=3D ~*mask; gpio->out |=3D *bits & *mask; - gpio->write(gpio->client, gpio->out); + status =3D gpio->write(gpio->client, gpio->out); mutex_unlock(&gpio->lock); + + return status; } =20 /*------------------------------------------------------------------------= -*/ @@ -292,8 +295,8 @@ static int pcf857x_probe(struct i2c_client *client) gpio->chip.owner =3D THIS_MODULE; gpio->chip.get =3D pcf857x_get; gpio->chip.get_multiple =3D pcf857x_get_multiple; - gpio->chip.set =3D pcf857x_set; - gpio->chip.set_multiple =3D pcf857x_set_multiple; + gpio->chip.set_rv =3D pcf857x_set; + gpio->chip.set_multiple_rv =3D pcf857x_set_multiple; gpio->chip.direction_input =3D pcf857x_input; gpio->chip.direction_output =3D pcf857x_output; gpio->chip.ngpio =3D (uintptr_t)i2c_get_match_data(client); --=20 2.48.1