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drm/panel: visionox-rm69299: Make use of prepare_prev_first

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The DSI link must be powered up to let panel driver to talk to the panel
during prepare() callback execution. Set the prepare_prev_first flag to
guarantee this.

Fixes: 9e15123eca ("drm/msm/dsi: Stop unconditionally powering up DSI hosts at modeset")
Signed-off-by: Guido Günther <agx@sigxcpu.org>
Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patch.msgid.link/20260417-axolotl-display-v2-1-8ce5341e46c2@ixit.cz
This commit is contained in:
Guido Günther
2026-04-17 08:55:42 +02:00
committed by Douglas Anderson
parent 6bf7969a14
commit 4a92ef0c57
1 changed files with 2 additions and 0 deletions
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drivers/gpu/drm/panel/panel-visionox-rm69299.c
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@@ -376,6 +376,8 @@ static int visionox_rm69299_probe(struct mipi_dsi_device *dsi)
return PTR_ERR(ctx->reset_gpio);
}
ctx->panel.prepare_prev_first = true;
ctx->panel.backlight = visionox_rm69299_create_backlight(ctx);
if (IS_ERR(ctx->panel.backlight))
return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),