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

Matthias Kaehlcke mka at chromium.org
Tue Mar 23 00:44:48 UTC 2021


On Mon, Mar 22, 2021 at 02:17:12AM -0700, Kalyan Thota wrote:
> From: Kalyan Thota <kalyant at codeaurora.org>
> 
> 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 at codeaurora.org>

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 at chromium.org>


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