Hi Laurent,
Thank you for the patch,
On 23/11/2018 14:34, Laurent Pinchart wrote:
> Implement a .mode_valid() handler in the R-Car glue layer to reject
> modes with an unsupported clock frequency.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart+rene...@ideasonboard.com>
> ---
> drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c
> b/drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c
> index 75490a3e0a2a..8a603235f22d 100644
> --- a/drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c
> +++ b/drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c
> @@ -35,6 +35,16 @@ static const struct rcar_hdmi_phy_params
> rcar_hdmi_phy_params[] = {
> { ~0UL, 0x0000, 0x0000, 0x0000 },
> };
>
> +static enum drm_mode_status
> +rcar_hdmi_mode_valid(struct drm_connector *connector,
> + const struct drm_display_mode *mode)
> +{
> + if (mode->clock > 297000)
Is 29700 constant? Can it be determined from any other location or is it
just a magically known platform value?
> + return MODE_CLOCK_HIGH;
> +
> + return MODE_OK;
> +}
> +
> static int rcar_hdmi_phy_configure(struct dw_hdmi *hdmi,
> const struct dw_hdmi_plat_data *pdata,
> unsigned long mpixelclock)
> @@ -59,6 +69,7 @@ static int rcar_hdmi_phy_configure(struct dw_hdmi *hdmi,
> }
>
> static const struct dw_hdmi_plat_data rcar_dw_hdmi_plat_data = {
> + .mode_valid = rcar_hdmi_mode_valid,
> .configure_phy = rcar_hdmi_phy_configure,
> };
>
>
--
Regards
--
Kieran
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