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Tue, 08 Apr 2025 00:42:58 -0700 (PDT) From: Bartosz Golaszewski Date: Tue, 08 Apr 2025 09:42:56 +0200 Subject: [PATCH] fbdev: via: 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: <20250408-gpiochip-set-rv-video-v1-1-200ea4d24a29@linaro.org> X-B4-Tracking: v=1; b=H4sIAH/T9GcC/x3MQQqAIBBA0avErBvQrIyuEi2sppqNioYE4t2Tl m/xf4ZIgSnC3GQIlDiysxWybWC/jb0I+aiGTnSDUEri5dntN3uM9GBImPggh+N2ymHqjdFaQG1 9oJPf/7uspXwfzH8VZwAAAA== To: Florian Tobias Schandinat , Helge Deller , Linus Walleij , Bartosz Golaszewski Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.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=2107; i=bartosz.golaszewski@linaro.org; h=from:subject:message-id; bh=yngfshF14pwSvzrYSNhyzUkMWDnjaEIdy0M4XDuzgqM=; b=owEBbQKS/ZANAwAKARGnLqAUcddyAcsmYgBn9NOAFPzoYiBfJTd1dvJSY7THpbhM5Nui3ZcaB ywwwKbK9XSJAjMEAAEKAB0WIQQWnetsC8PEYBPSx58Rpy6gFHHXcgUCZ/TTgAAKCRARpy6gFHHX crk+D/9Xizg8WvZa9J61rbqYpcpvD1ujH1jEBpC2/Og+c4KsE/FYxmYpTFDxBBH9IkCNU0wZ+MW sXsQwo8xypAlB0Qkmn8E4YG+7VqjDpbbq00hsJNax69W+Ces/apbqznairccWCqnWraBxWjxlMA qmLoYtdidVEQBbYSFHmDQWFjfBYnBbxhbSSrvwpbGsJLsmTo3mtZnSTRlkOzwRxvoRcx6gAlo/l 05ShLFNEo4ofMRbiQBiB6Q+5PNS4fCG5VqIxmFykmT9fuhZ+gGNfIdE41tX2Cu/7rdoTutaFa1c GlsasQIGu33rxNBj3nQRS4hmPW/uUvSe8p2/xGqZ6heD4oFMxImiaMckAdvl8ogEqULDzknduvk L6eeHIWdzXOqYm6uBpMmO6w9XJhcCGJf3D5O5LSSZDBWBPDR58x0xDYecnSrhoMLxcV5y8QJphB S/1FBPnALDBJSWI2zsF3KfzpkJFOEXE6iA6ph7u+bz+Kulgqd8oZta3LL/VVJN3kOkbQg5LhI1r Fs5mXSUi9X2tNacDZ/4CXZS6xYO48VRwKEQyKQntkXb9yYOi6XsQH1szvlipwTizNW88c6w5vJ5 2qD7Pp1PSJC+CHjId8JeHhL9CGNIa4HMH+CJZEsDJsbzUX7WkEL92Z3gs3HolgyKBdH6NDFgp9G BtCYYpvPO2gxKfw== 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 Reviewed-by: Linus Walleij --- Commit 98ce1eb1fd87e ("gpiolib: introduce gpio_chip setters that return values") added new line setter callbacks to struct gpio_chip. They allow to indicate failures to callers. We're in the process of converting all GPIO controllers to using them before removing the old ones. --- drivers/video/fbdev/via/via-gpio.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/video/fbdev/via/via-gpio.c b/drivers/video/fbdev/via/v= ia-gpio.c index 9577c2cd52c7..27226a8f3f42 100644 --- a/drivers/video/fbdev/via/via-gpio.c +++ b/drivers/video/fbdev/via/via-gpio.c @@ -81,8 +81,7 @@ struct viafb_gpio_cfg { /* * GPIO access functions */ -static void via_gpio_set(struct gpio_chip *chip, unsigned int nr, - int value) +static int via_gpio_set(struct gpio_chip *chip, unsigned int nr, int value) { struct viafb_gpio_cfg *cfg =3D gpiochip_get_data(chip); u8 reg; @@ -99,13 +98,14 @@ static void via_gpio_set(struct gpio_chip *chip, unsign= ed int nr, reg &=3D ~(0x10 << gpio->vg_mask_shift); via_write_reg(VIASR, gpio->vg_port_index, reg); spin_unlock_irqrestore(&cfg->vdev->reg_lock, flags); + + return 0; } =20 static int via_gpio_dir_out(struct gpio_chip *chip, unsigned int nr, int value) { - via_gpio_set(chip, nr, value); - return 0; + return via_gpio_set(chip, nr, value); } =20 /* @@ -146,7 +146,7 @@ static struct viafb_gpio_cfg viafb_gpio_config =3D { .label =3D "VIAFB onboard GPIO", .owner =3D THIS_MODULE, .direction_output =3D via_gpio_dir_out, - .set =3D via_gpio_set, + .set_rv =3D via_gpio_set, .direction_input =3D via_gpio_dir_input, .get =3D via_gpio_get, .base =3D -1, --- base-commit: 0af2f6be1b4281385b618cb86ad946eded089ac8 change-id: 20250331-gpiochip-set-rv-video-6bf1584aa770 Best regards, --=20 Bartosz Golaszewski