linux-kernel - [PATCH v3 05/19] drm/panel: sitronix-st7789v: make reset GPIO optional

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Message-Id: <20230714013756.1546769-6-sre@kernel.org>
Date:   Fri, 14 Jul 2023 03:37:42 +0200
From:   Sebastian Reichel <sre@...nel.org>
To:     Sebastian Reichel <sre@...nel.org>
Cc:     Gerald Loacker <gerald.loacker@...fvision.net>,
        Michael Riesch <michael.riesch@...fvision.net>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        devicetree@...r.kernel.org
Subject: [PATCH v3 05/19] drm/panel: sitronix-st7789v: make reset GPIO optional

The reset pin might not be software controllable from the SoC,
so make it optional.

Reviewed-by: Michael Riesch <michael.riesch@...fvision.net>
Signed-off-by: Sebastian Reichel <sre@...nel.org>
---
 drivers/gpu/drm/panel/panel-sitronix-st7789v.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
index f7566551b5e2..1d43b8cc1647 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
@@ -369,7 +369,7 @@ static int st7789v_probe(struct spi_device *spi)
 	if (IS_ERR(ctx->power))
 		return PTR_ERR(ctx->power);
 
-	ctx->reset = devm_gpiod_get(&spi->dev, "reset", GPIOD_OUT_LOW);
+	ctx->reset = devm_gpiod_get_optional(&spi->dev, "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(ctx->reset)) {
 		dev_err(&spi->dev, "Couldn't get our reset line\n");
 		return PTR_ERR(ctx->reset);
-- 
2.40.1