[PATCH v3 0/3] drm/rockchip: dw_hdmi: Add 4k at 30 support
Michael Riesch
michael.riesch at wolfvision.net
Wed Jan 18 06:24:41 PST 2023
Hi Sascha,
Thanks a lot for the v3, works great in my setup!
On 1/18/23 14:22, Sascha Hauer wrote:
> It's been some time since I last sent this series. This version fixes
> a regression Dan Johansen reported. The reason turned out to be simple,
> I used the YUV420 register values instead of the RGB ones.
>
> I realized that we cannot achieve several modes offered by my monitor
> as these require pixelclocks that are slightly below the standard
> pixelclocks. As these are lower than the standard clock rates the PLL
> driver offers the clk driver falls back to a way lower frequency
> which results in something the monitor can't display, so this series
> now contains a patch to discard these unachievable modes.
>
> Sascha
>
> Changes since v2:
> - Use correct register values for mpll_cfg
> - Add patch to discard modes we cannot achieve
>
> Changes since v1:
> - Allow non standard clock rates only on Synopsys phy as suggested by
> Robin Murphy
>
> Sascha Hauer (3):
> drm/rockchip: dw_hdmi: relax mode_valid hook
> drm/rockchip: dw_hdmi: Add support for 4k at 30 resolution
> drm/rockchip: dw_hdmi: discard modes with unachievable pixelclocks
For the complete series
Tested-by: Michael Riesch <michael.riesch at wolfvision.net>
Best regards,
Michael
>
> drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 40 ++++++++++++++++-----
> 1 file changed, 32 insertions(+), 8 deletions(-)
>
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