drm/panel: sofef00: Add prepare_prev_first flag to drm_panel

This corrects the host initialisation sequence so that we can send
DSI/DCS commands in prepare().

Signed-off-by: Casey Connolly <casey.connolly@linaro.org>
Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20251119-sofef00-rebuild-v3-7-6cd55471e84e@ixit.cz

diff --git a/drivers/gpu/drm/panel/panel-samsung-sofef00.c b/drivers/gpu/drm/panel/panel-samsung-sofef00.c
index 97122ec8872a1ceca716ba7ba1a66f4309c795d4..0d3ae0689a19b0846f7b4df35d6b6d12a069174b 100644 (file)
--- a/drivers/gpu/drm/panel/panel-samsung-sofef00.c
+++ b/drivers/gpu/drm/panel/panel-samsung-sofef00.c
@@ -242,6 +242,8 @@ static int sofef00_panel_probe(struct mipi_dsi_device *dsi)
        dsi->lanes = 4;
        dsi->format = MIPI_DSI_FMT_RGB888;
 
+       ctx->panel.prepare_prev_first = true;
+
        ctx->panel.backlight = sofef00_create_backlight(dsi);
        if (IS_ERR(ctx->panel.backlight))
                return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),