Re: [PATCH v3 1/3] clk: qcom: dispcc-sm8450: Fix disp_cc_mdss_mdp_clk_src ops

From: Dmitry Baryshkov

Date: Wed Jul 22 2026 - 09:27:11 EST


On Fri, Jul 17, 2026 at 11:02:11PM +0200, David Heidelberg wrote:
> On 14/07/2026 05:28, Esteban Urrutia via B4 Relay wrote:
> > From: Esteban Urrutia <esteuwu@xxxxxxxxx>
> >
> > If the clock frequency is changed at registration time, a flicker will be
> > visible at boot.
> > Switching to clk_rcg2_shared_no_init_park_ops fixes this.
> >
> > Fixes: 16fb89f92ec4 ("clk: qcom: Add support for Display Clock Controller on SM8450")
> > Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
> > Signed-off-by: Esteban Urrutia <esteuwu@xxxxxxxxx>
> > ---
> > drivers/clk/qcom/dispcc-sm8450.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> Heya,
>
> it's likely this change will be safe for older sdm845 too? Comma.AI people
> have it applied downstream on top of 6.18/7.1 [1], so I'm wondering if it's
> something after testing on available targets could be enabled for 845 too.

Yes. Please send it (for sdm845 and at least other dispcc controllers).

>
> David
>
> [1] https://github.com/commaai/vamOS/blob/master/kernel/patches/0004-clk-qcom-dispcc-sdm845-use-no_init_park-ops-for-disp.patch
> [...]

--
With best wishes
Dmitry