On 7/22/2026 2:20 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.
Allow the MDSS bindings to describe both power domains and
their corresponding power-domain-names values.
Another question... If INT2_GDSC only powers up a subset of SSPPs, why
is it being declared as powering up the full MDSS? Can we move it to the
DPU device instead?
Hmm, yes, it only use for VIG2/VIG3/DMA5 here. we can move it to DPU.
Since listing more than one power-domain disables auto-attach, a small
driver change is needed to attach both domains explicitly — MMCX with
PD_FLAG_REQUIRED_OPP to keep performance-state voting working, INT2_GDSC
as a plain runtime-PM supplier.
Signed-off-by: Yongxing Mou <[email protected]>
---
.../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(-)
