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Subject[PATCH 3/3] drm/panel: ilitek-ili9881c: Read panel orientation
Date
The panel orientation needs to parsed from a device-tree and assigned to
the panel's connector in order to make orientation property available to
userspace. That's what this patch does for ILI9881C based panels.

Signed-off-by: John Keeping <john@metanate.com>
---
drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
index d68c52bd53c2..ba30d11547ad 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
@@ -52,6 +52,8 @@ struct ili9881c {

struct regulator *power;
struct gpio_desc *reset;
+
+ enum drm_panel_orientation orientation;
};

#define ILI9881C_SWITCH_PAGE_INSTR(_page) \
@@ -851,6 +853,8 @@ static int ili9881c_get_modes(struct drm_panel *panel,
connector->display_info.width_mm = mode->width_mm;
connector->display_info.height_mm = mode->height_mm;

+ drm_connector_set_panel_orientation(connector, ctx->orientation);
+
return 1;
}

@@ -887,6 +891,13 @@ static int ili9881c_dsi_probe(struct mipi_dsi_device *dsi)
return dev_err_probe(&dsi->dev, PTR_ERR(ctx->reset),
"Couldn't get our reset GPIO\n");

+ ret = of_drm_get_panel_orientation(dsi->dev.of_node, &ctx->orientation);
+ if (ret) {
+ dev_err(&dsi->dev, "%pOF: failed to get orientation: %d\n",
+ dsi->dev.of_node, ret);
+ return ret;
+ }
+
ret = drm_panel_of_backlight(&ctx->panel);
if (ret)
return ret;
--
2.33.1
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