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

Dmitry Baryshkov <[email protected]> Wed, 22 Jul 2026 16:23:37 +0300
Newsgroups org.kernel.vger.phone-devel,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-clk,org.kernel.vger.linux-kernel
Message-ID <2fsd7y2myhb4tx4t3owjiqyavvhly5qewpfqlaujewnlvrwejm@wqodgnuahspo>
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 <[email protected]>
> > 
> > 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 <[email protected]>
> > Signed-off-by: Esteban Urrutia <[email protected]>
> > ---
> >   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