[PATCH 1/3] arm64: dts: rockchip: introduce pclk_vio_grf in eDP device node

Heiko Stuebner heiko at sntech.de
Fri Feb 9 01:45:03 PST 2018

Am Mittwoch, 7. Februar 2018, 17:31:48 CET schrieb Enric Balletbo i Serra:
> From: Yakir Yang <ykk at rock-chips.com>
> The pclk_vio_grf supply power for VIO GRF IOs, if it is disabled,
> driver would failed to operate the VIO GRF registers.
> The clock is optional but one of the side effects of don't have this clk
> is that the Samsung Chromebook Plus fails to recover display after a
> suspend/resume with following errors:
>     rockchip-dp ff970000.edp: Input stream clock not detected.
>     rockchip-dp ff970000.edp: Timeout of video streamclk ok
>     rockchip-dp ff970000.edp: unable to config video
> Signed-off-by: Yakir Yang <ykk at rock-chips.com>
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo at collabora.com>

as you said in IRC that his should also fix the failures when rockchip-drm
is build as module, I've applied this patch as fix for 4.16


More information about the Linux-rockchip mailing list