Re: [PATCH 2/5] drm: panel: jd9365da: Add prepare_prev_first flag to drm_panel

[Neil Armstrong]

On 7/8/26 23:34, Marc-Olivier Champagne wrote:
> The DSI host must be enabled for the panel to be initialized in
> prepare(). Set the prepare_prev_first flag to guarantee this.
> This fixes the panel operation on Renesas RZ/G2LC SoC DSI host.
>
> Suggested-by: Hugo Villeneuve <hvilleneuve@xxxxxxxxxxxx>
> Signed-off-by: Marc-Olivier Champagne <marc-olivier.champagne@xxxxxxxxxxxxxxxxxxxx>
> ---
>   drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c b/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
> index 1ef0c937863a..a79dc8f8d5af 100644
> --- a/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
> +++ b/drivers/gpu/drm/panel/panel-jadard-jd9365da-h3.c
> @@ -2993,6 +2993,8 @@ static int jadard_dsi_probe(struct mipi_dsi_device *dsi)
>   		return dev_err_probe(&dsi->dev, PTR_ERR(jadard->vccio),
>   				"failed to get vccio regulator\n");
>   
> +	jadard->panel.prepare_prev_first = true;
> +
>   	ret = of_drm_get_panel_orientation(dev->of_node, &jadard->orientation);
>   	if (ret < 0)
>   		return dev_err_probe(dev, ret, "failed to get orientation\n");

Reviewed-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>

Thanks,
Neil