Re: [PATCH 6/8] drm/vc4: hdmi: Raise the maximum clock rate

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On Thu, 25 Feb 2021 at 15:59, Maxime Ripard <maxime@xxxxxxxxxx> wrote:
>
> Now that we have the infrastructure in place, we can raise the maximum
> pixel rate we can reach for HDMI0 on the BCM2711.
>
> HDMI1 is left untouched since its pixelvalve has a smaller FIFO and
> would need a clock faster than what we can provide to support the same
> modes.
>
> Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>

Reviewed-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>

> ---
>  drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
> index 1a6babb53cf4..27464add6468 100644
> --- a/drivers/gpu/drm/vc4/vc4_hdmi.c
> +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
> @@ -2177,7 +2177,7 @@ static const struct vc4_hdmi_variant bcm2711_hdmi0_variant = {
>         .encoder_type           = VC4_ENCODER_TYPE_HDMI0,
>         .debugfs_name           = "hdmi0_regs",
>         .card_name              = "vc4-hdmi-0",
> -       .max_pixel_clock        = HDMI_14_MAX_TMDS_CLK,
> +       .max_pixel_clock        = 600000000,
>         .registers              = vc5_hdmi_hdmi0_fields,
>         .num_registers          = ARRAY_SIZE(vc5_hdmi_hdmi0_fields),
>         .phy_lane_mapping       = {
> --
> 2.29.2
>
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