Re: [v1] drm/msm/disp/dpu1: icc path needs to be set before dpu runtime resume

From: Rob Clark
Date: Mon Mar 22 2021 - 21:55:55 EST


On Mon, Mar 22, 2021 at 5:44 PM Matthias Kaehlcke <mka@xxxxxxxxxxxx> wrote:
>
> On Mon, Mar 22, 2021 at 02:17:12AM -0700, Kalyan Thota wrote:
> > From: Kalyan Thota <kalyant@xxxxxxxxxxxxxx>
> >
> > DPU runtime resume will request for a min vote on the AXI bus as
> > it is a necessary step before turning ON the AXI clock.
> >
> > The change does below
> > 1) Move the icc path set before requesting runtime get_sync.
> > 2) remove the dependency of hw catalog for min ib vote
> > as it is initialized at a later point.
> >
> > Signed-off-by: Kalyan Thota <kalyan_t@xxxxxxxxxxxxxx>
>
> Confirmed that this fixes a bunch of warnings at boot on SC7180 when
> (out-of-tree) camera support is enabled:
>
> [ 1.832228] gcc_disp_hf_axi_clk status stuck at 'off'
> [ 2.118292] gcc_disp_hf_axi_clk status stuck at 'off'
> [ 2.442383] gcc_disp_hf_axi_clk already disabled
> [ 2.750054] gcc_disp_hf_axi_clk already unprepared
> [ 3.154835] gcc_disp_hf_axi_clk already disabled
> [ 3.421835] gcc_disp_hf_axi_clk already unprepared
>
> Tested-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>

thanks for testing on the setup which had this issue.. I've pushed to msm-next

BR,
-R