linux-kernel - [PATCH 4/5] drm/panel: ilitek-ili9881c: Make gpio-reset optional

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Message-Id: <20211016102232.202119-5-michael@amarulasolutions.com>
Date:   Sat, 16 Oct 2021 10:22:31 +0000
From:   Michael Trimarchi <michael@...rulasolutions.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Rob Herring <robh+dt@...nel.org>,
        Heiko Stübner <heiko@...ech.de>
Cc:     devicetree@...r.kernel.org, Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/5] drm/panel: ilitek-ili9881c: Make gpio-reset optional

Depends in how logic is connected to the board the gpio is
not stricly required.

Signed-off-by: Michael Trimarchi <michael@...rulasolutions.com>
---
 .../devicetree/bindings/display/panel/ilitek,ili9881c.yaml      | 1 -
 drivers/gpu/drm/panel/panel-ilitek-ili9881c.c                   | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml
index 2d4a5643a785..07789d554889 100644
--- a/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml
+++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9881c.yaml
@@ -27,7 +27,6 @@ required:
   - compatible
   - power-supply
   - reg
-  - reset-gpios
 
 additionalProperties: false
 
diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
index d1f20758ed08..103a16018975 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
@@ -883,7 +883,7 @@ static int ili9881c_dsi_probe(struct mipi_dsi_device *dsi)
 		return PTR_ERR(ctx->power);
 	}
 
-	ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW);
+	ctx->reset = devm_gpiod_get_optional(&dsi->dev, "reset", GPIOD_OUT_LOW);
 	if (IS_ERR(ctx->reset)) {
 		dev_err(&dsi->dev, "Couldn't get our reset GPIO\n");
 		return PTR_ERR(ctx->reset);
-- 
2.25.1