[PATCH v2 3/4] drm: panel: Add orientation support for st7701

Maya Matuszczyk
2023-02-13T15:38:41Z

Note that this patch is 'heavily inspired' by orientation support in driver
for Elida KD35T133 panel

Signed-off-by: Maya Matuszczyk <maccraft123mc@gmail.com>
---
drivers/gpu/drm/panel/panel-sitronix-st7701.c | 21 ++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7701.c b/drivers/gpu/drm/panel/panel-sitronix-st7701.c
index 660c3f435008..c9ae5c456f41 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7701.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7701.c
@@ -135,6 +135,7 @@ struct st7701 {
struct regulator_bulk_data supplies[2];
struct gpio_desc *reset;
unsigned int sleep_delay;
+ enum drm_panel_orientation orientation;
};

static inline struct st7701 *panel_to_st7701(struct drm_panel *panel)
@@ -514,15 +515,29 @@ static int st7701_get_modes(struct drm_panel *panel,
connector->display_info.width_mm = desc_mode->width_mm;
connector->display_info.height_mm = desc_mode->height_mm;

+ /*
+ * TODO: Remove once all drm drivers call
+ * drm_connector_set_orientation_from_panel()
+ */
+ drm_connector_set_panel_orientation(connector, st7701->orientation);
+
return 1;
}

+static enum drm_panel_orientation st7701_get_orientation(struct drm_panel *panel)
+{
+ struct st7701 *st7701 = panel_to_st7701(panel);
+
+ return st7701->orientation;
+}
+
static const struct drm_panel_funcs st7701_funcs = {
.disable = st7701_disable,
.unprepare = st7701_unprepare,
.prepare = st7701_prepare,
.enable = st7701_enable,
.get_modes = st7701_get_modes,
+ .get_orientation = st7701_get_orientation,
};

static const struct drm_display_mode ts8550b_mode = {
@@ -733,7 +748,7 @@ static const struct drm_display_mode kd50t048a_mode = {
.hsync_end = 480 + 2 + 10,
.htotal = 480 + 2 + 10 + 2,

- .vdisplay = 854, // was: 854 12 2 60
+ .vdisplay = 854,
.vsync_start = 854 + 2,
.vsync_end = 854 + 2 + 2,
.vtotal = 854 + 2 + 2 + 17,
@@ -854,6 +869,10 @@ static int st7701_dsi_probe(struct mipi_dsi_device *dsi)
return PTR_ERR(st7701->reset);
}

+ ret = of_drm_get_panel_orientation(dsi->dev.of_node, &st7701->orientation);
+ if (ret < 0)
+ return dev_err_probe(&dsi->dev, ret, "Failed to get orientation\n");
+
drm_panel_init(&st7701->panel, &dsi->dev, &st7701_funcs,
DRM_MODE_CONNECTOR_DSI);

--
2.39.1