[PATCH v7 15/24] drm/rockchip: dw_hdmi: add default 594Mhz clk for 4K at 60hz

Andy Yan andy.yan at rock-chips.com
Mon Mar 7 12:06:10 UTC 2022


Hi:

  I have a test with the 24 patches applied on Linux-5.17-rc5 on 
rk3568-evb1-v10 board with Sony XR-75z9j  HDMI TV,

4K don't work, the tv shows no signal.

1080P can work.

On 2/25/22 15:51, Sascha Hauer wrote:
> From: Nickey Yang <nickey.yang at rock-chips.com>
>
> add 594Mhz configuration parameters in rockchip_phy_config
>
> Signed-off-by: Nickey Yang <nickey.yang at rock-chips.com>
> Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
> ---
>
> Notes:
>      Changes since v3:
>      - new patch
>
>   drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> index e97ba072a097b..03cda7229e559 100644
> --- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> +++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
> @@ -192,6 +192,7 @@ static const struct dw_hdmi_phy_config rockchip_phy_config[] = {
>   	{ 74250000,  0x8009, 0x0004, 0x0272},
>   	{ 148500000, 0x802b, 0x0004, 0x028d},
>   	{ 297000000, 0x8039, 0x0005, 0x028d},
> +	{ 594000000, 0x8039, 0x0000, 0x019d},
>   	{ ~0UL,	     0x0000, 0x0000, 0x0000}
>   };
>   


More information about the dri-devel mailing list