diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams427ap24.c b/drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams427ap24.c index 4b8aa088f4458..e92e95158d1f2 100644 --- a/drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams427ap24.c +++ b/drivers/gpu/drm/panel/panel-samsung-s6e88a0-ams427ap24.c @@ -38,6 +38,7 @@ struct s6e88a0_ams427ap24 { struct mipi_dsi_device *dsi; struct regulator_bulk_data *supplies; struct gpio_desc *reset_gpio; + bool flip_horizontal; }; static const struct regulator_bulk_data s6e88a0_ams427ap24_supplies[] = { @@ -550,6 +551,10 @@ static int s6e88a0_ams427ap24_on(struct s6e88a0_ams427ap24 *ctx) mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xcc, 0x4c); // pixel clock divider pol. mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf2, 0x03, 0x0d); // unknown mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf1, 0xa5, 0xa5); // level 3 key off + + if (ctx->flip_horizontal) + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xcb, 0x0e); // flip display + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5); // level 1 key off mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfc, 0xa5, 0xa5); // level 2 key off @@ -710,6 +715,8 @@ static int s6e88a0_ams427ap24_probe(struct mipi_dsi_device *dsi) DRM_MODE_CONNECTOR_DSI); ctx->panel.prepare_prev_first = true; + ctx->flip_horizontal = device_property_read_bool(dev, "flip-horizontal"); + ret = s6e88a0_ams427ap24_register_backlight(ctx); if (ret < 0) return ret;