drm/panel: jdi-fhd-r63452: make use of prepare_prev_first

The DSI host must be enabled for the panel to be initialized in
prepare(). Set the prepare_prev_first flag to guarantee this.

Signed-off-by: Barnabás Czémán <trabarni@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20240423-jdi-fix-v1-1-808970662b40@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240423-jdi-fix-v1-1-808970662b40@gmail.com

diff --git a/drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c b/drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c
index 3e0a8e0d58a0f53a403af3aacd988cd82b960552..483dc88d16d84d6273be34452399244cd5588fd6 100644 (file)
--- a/drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c
+++ b/drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c
@@ -247,6 +247,7 @@ static int jdi_fhd_r63452_probe(struct mipi_dsi_device *dsi)
 
        drm_panel_init(&ctx->panel, dev, &jdi_fhd_r63452_panel_funcs,
                       DRM_MODE_CONNECTOR_DSI);
+       ctx->panel.prepare_prev_first = true;
 
        ret = drm_panel_of_backlight(&ctx->panel);
        if (ret)