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SubjectRe: [PATCH v4 1/4] drm: sun4i: dsi: Use drm_of_find_panel_or_bridge
Hi Jagan,

Thank you for the patch.

On Mon, Mar 22, 2021 at 07:31:49PM +0530, Jagan Teki wrote:
> Replace of_drm_find_panel with drm_of_find_panel_or_bridge
> for finding panel, this indeed help to find the bridge if
> bridge support added.
>
> Added NULL in bridge argument, same will replace with bridge
> parameter once bridge supported.
>
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>

Looks good, there should be no functional change.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
> Changes for v4, v3:
> - none
>
> drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 11 ++++++++---
> 1 file changed, 8 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
> index 4f5efcace68e..2e9e7b2d4145 100644
> --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
> +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
> @@ -21,6 +21,7 @@
>
> #include <drm/drm_atomic_helper.h>
> #include <drm/drm_mipi_dsi.h>
> +#include <drm/drm_of.h>
> #include <drm/drm_panel.h>
> #include <drm/drm_print.h>
> #include <drm/drm_probe_helper.h>
> @@ -963,10 +964,14 @@ static int sun6i_dsi_attach(struct mipi_dsi_host *host,
> struct mipi_dsi_device *device)
> {
> struct sun6i_dsi *dsi = host_to_sun6i_dsi(host);
> - struct drm_panel *panel = of_drm_find_panel(device->dev.of_node);
> + struct drm_panel *panel;
> + int ret;
> +
> + ret = drm_of_find_panel_or_bridge(dsi->dev->of_node, 0, 0,
> + &panel, NULL);
> + if (ret)
> + return ret;
>
> - if (IS_ERR(panel))
> - return PTR_ERR(panel);
> if (!dsi->drm || !dsi->drm->registered)
> return -EPROBE_DEFER;
>

--
Regards,

Laurent Pinchart

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