[PATCH V2 04/10] drm/panel: himax-hx8394: Add Panel Rotation Support

Chris Morgan
2023-12-04T18:57:29Z

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