Re: [PATCH 1/3] dt-bindings: display: msm: Allow two MDSS power domains

[Yongxing Mou]

On 7/22/2026 2:18 AM, Dmitry Baryshkov wrote:
> On Mon, Jul 20, 2026 at 04:43:53PM +0800, Yongxing Mou wrote:
> > Kaanapali (SM8750) and Glymur use two display power domains.
> > CORE_GDSC powers the main display hardware while INT2_GDSC
> > powers a subset of SSPP blocks.
>
> I see that INT2_GDSC is defined since SC8280XP / SM8450. Does it need to
> be enabled on all those platforms?
No, INT2_GDSC was introduced starting from Kaanapali for SSPP1 
(VIG2/VIG3/DMA5). Prior to that, it was not actually used and 
essentially served as a placeholder.

Sorry for the confusion. Glymur does not require INT2_GDSC to be enabled 
either. I previously assumed it behaved the same way as Kaanapali, but 
that assumption was incorrect.
> > Allow the MDSS bindings to describe both power domains and
> > their corresponding power-domain-names values.
> >
> > Signed-off-by: Yongxing Mou <yongxing.mou@xxxxxxxxxxxxxxxx>
> > ---
> >   .../devicetree/bindings/display/msm/mdss-common.yaml        |  3 ++-
> >   .../devicetree/bindings/display/msm/qcom,glymur-mdss.yaml   | 13 ++++++++++++-
> >   .../bindings/display/msm/qcom,kaanapali-mdss.yaml           | 13 ++++++++++++-
> >   3 files changed, 26 insertions(+), 3 deletions(-)