[PATCH v4 15/16] drm/msm/dp: read hw revision only once

[Stephen Boyd]

Quoting Dmitry Baryshkov (2024-12-15 14:44:20)
> There is little point in rereading DP controller revision over and over
> again. Read it once, after the first software reset and propagate it to
> the dp_panel module.
>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
> ---

Reviewed-by: Stephen Boyd <swboyd at chromium.org>
Tested-by: Stephen Boyd <swboyd at chromium.org> # sc7180-trogdor