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Message-Id: <20230412-topic-lenovopanel-v1-4-00b25df46824@linaro.org>
Date: Wed, 12 Apr 2023 21:46:01 +0200
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Jianhua Lu <lujianhua000@...il.com>,
Neil Armstrong <neil.armstrong@...aro.org>,
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>
Cc: Marijn Suijten <marijn.suijten@...ainline.org>,
dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 4/5] drm/panel: nt36523: Get orientation from OF
Some bright vendors mount their display panels upside down. Add the
required pieces to allow for accounting for that.
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
drivers/gpu/drm/panel/panel-novatek-nt36523.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-novatek-nt36523.c b/drivers/gpu/drm/panel/panel-novatek-nt36523.c
index 3c81ec014eef..db4b4af13ec1 100644
--- a/drivers/gpu/drm/panel/panel-novatek-nt36523.c
+++ b/drivers/gpu/drm/panel/panel-novatek-nt36523.c
@@ -31,6 +31,7 @@ struct panel_info {
struct drm_panel panel;
struct mipi_dsi_device *dsi[2];
const struct panel_desc *desc;
+ enum drm_panel_orientation orientation;
struct gpio_desc *reset_gpio;
struct backlight_device *backlight;
@@ -674,11 +675,19 @@ static int nt36523_get_modes(struct drm_panel *panel,
return pinfo->desc->num_modes;
}
+static enum drm_panel_orientation nt36523_get_orientation(struct drm_panel *panel)
+{
+ struct panel_info *pinfo = to_panel_info(panel);
+
+ return pinfo->orientation;
+}
+
static const struct drm_panel_funcs nt36523_panel_funcs = {
.disable = nt36523_disable,
.prepare = nt36523_prepare,
.unprepare = nt36523_unprepare,
.get_modes = nt36523_get_modes,
+ .get_orientation = nt36523_get_orientation,
};
static int nt36523_bl_update_status(struct backlight_device *bl)
@@ -784,6 +793,12 @@ static int nt36523_probe(struct mipi_dsi_device *dsi)
mipi_dsi_set_drvdata(dsi, pinfo);
drm_panel_init(&pinfo->panel, dev, &nt36523_panel_funcs, DRM_MODE_CONNECTOR_DSI);
+ ret = of_drm_get_panel_orientation(dev->of_node, &pinfo->orientation);
+ if (ret < 0) {
+ dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, ret);
+ return ret;
+ }
+
if (pinfo->desc->has_dcs_backlight) {
pinfo->panel.backlight = nt36523_create_backlight(dsi);
if (IS_ERR(pinfo->panel.backlight))
--
2.40.0
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