[PATCH 4/9] drm/panel: himax-hx8394: Add Panel Rotation Support

From: Chris Morgan <macroalpha82@gmail.com>
To: linux-rockchip@lists.infradead.org
Cc: dri-devel@lists.freedesktop.org, linux-clk@vger.kernel.org,
	devicetree@vger.kernel.org, sboyd@kernel.org,
	mturquette@baylibre.com, tzimmermann@suse.de, mripard@kernel.org,
	maarten.lankhorst@linux.intel.com, daniel@ffwll.ch,
	airlied@gmail.com, sam@ravnborg.org, quic_jesszhan@quicinc.com,
	neil.armstrong@linaro.org, javierm@redhat.com, heiko@sntech.de,
	conor+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
	robh+dt@kernel.org, Chris Morgan <macromorgan@hotmail.com>
Subject: [PATCH 4/9] drm/panel: himax-hx8394: Add Panel Rotation Support
Date: Thu, 30 Nov 2023 09:56:19 -0600	[thread overview]
Message-ID: <20231130155624.405575-5-macroalpha82@gmail.com> (raw)
In-Reply-To: <20231130155624.405575-1-macroalpha82@gmail.com>

From: Chris Morgan <macromorgan@hotmail.com>

Add support for setting the rotation property for the Himax HX8394
panel.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
 drivers/gpu/drm/panel/panel-himax-hx8394.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-himax-hx8394.c b/drivers/gpu/drm/panel/panel-himax-hx8394.c
index d8e590d5e1da..b68ea09f4725 100644
--- a/drivers/gpu/drm/panel/panel-himax-hx8394.c
+++ b/drivers/gpu/drm/panel/panel-himax-hx8394.c
@@ -68,6 +68,7 @@ struct hx8394 {
 	struct gpio_desc *reset_gpio;
 	struct regulator *vcc;
 	struct regulator *iovcc;
+	enum drm_panel_orientation orientation;
 
 	const struct hx8394_panel_desc *desc;
 };
@@ -324,12 +325,20 @@ static int hx8394_get_modes(struct drm_panel *panel,
 	return 1;
 }
 
+static enum drm_panel_orientation hx8394_get_orientation(struct drm_panel *panel)
+{
+	struct hx8394 *ctx = panel_to_hx8394(panel);
+
+	return ctx->orientation;
+}
+
 static const struct drm_panel_funcs hx8394_drm_funcs = {
 	.disable   = hx8394_disable,
 	.unprepare = hx8394_unprepare,
 	.prepare   = hx8394_prepare,
 	.enable	   = hx8394_enable,
 	.get_modes = hx8394_get_modes,
+	.get_orientation = hx8394_get_orientation,
 };
 
 static int hx8394_probe(struct mipi_dsi_device *dsi)
@@ -347,6 +356,12 @@ static int hx8394_probe(struct mipi_dsi_device *dsi)
 		return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
 				     "Failed to get reset gpio\n");
 
+	ret = of_drm_get_panel_orientation(dev->of_node, &ctx->orientation);
+	if (ret < 0) {
+		dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, ret);
+		return ret;
+	}
+
 	mipi_dsi_set_drvdata(dsi, ctx);
 
 	ctx->dev = dev;
-- 
2.34.1


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