From: Yongxing Mou <yongxing.mou@oss.qualcomm.com>
To: Rob Clark <robin.clark@oss.qualcomm.com>,
Dmitry Baryshkov <lumag@kernel.org>,
Abhinav Kumar <abhinav.kumar@linux.dev>,
Jessica Zhang <jesszhan0024@gmail.com>,
Sean Paul <sean@poorly.run>,
Marijn Suijten <marijn.suijten@somainline.org>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Krishna Manikandan <quic_mkrishn@quicinc.com>,
Abel Vesa <abelvesa@kernel.org>,
Yuanjie Yang <yuanjie.yang@oss.qualcomm.com>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
freedreno@lists.freedesktop.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Yongxing Mou <yongxing.mou@oss.qualcomm.com>
Subject: [PATCH v4 1/3] dt-bindings: display: msm: Add INT2 GDSC to Kaanapali DPU
Date: Fri, 23 Oct 2026 16:13:11 +0800 [thread overview]
Message-ID: <20261023-msm_gdsc2-v4-1-40b6a71d4e3f@oss.qualcomm.com> (raw)
In-Reply-To: <20261023-msm_gdsc2-v4-0-40b6a71d4e3f@oss.qualcomm.com>
Kaanapali (SM8850) has two display GDSCs. CORE_GDSC supplies shared
MDSS hardware and most of the DPU, while INT2 GDSC supplies the
VIG2/VIG3/DMA5 source pipes. Without INT2 GDSC, these source pipes
remain inaccessible.
Describe CORE and INT2 as power domains of the DPU device, matching
the hardware partitioning. INT2 only supplies DPU-local source pipes,
while CORE also remains attached to the parent MDSS device because it
supplies shared MDSS hardware. DPU performance-state votes on CORE are
propagated through the genpd hierarchy to its parent MMCX domain.
Keep the widest valid power-domain constraint in dpu-common.yaml and
narrow it in each platform-specific binding. Require two domains and
their names for Kaanapali, while retaining the existing single-domain
constraint for all other DPU platforms.
Signed-off-by: Yongxing Mou <yongxing.mou@oss.qualcomm.com>
---
.../bindings/display/msm/dpu-common.yaml | 3 ++-
.../bindings/display/msm/qcom,kaanapali-mdss.yaml | 4 +++-
.../bindings/display/msm/qcom,msm8998-dpu.yaml | 3 +++
.../bindings/display/msm/qcom,qcm2290-dpu.yaml | 3 +++
.../bindings/display/msm/qcom,sc7180-dpu.yaml | 3 +++
.../bindings/display/msm/qcom,sc7280-dpu.yaml | 3 +++
.../bindings/display/msm/qcom,sc8180x-dpu.yaml | 3 +++
.../bindings/display/msm/qcom,sdm845-dpu.yaml | 3 +++
.../bindings/display/msm/qcom,sm6115-dpu.yaml | 3 +++
.../bindings/display/msm/qcom,sm6150-dpu.yaml | 3 +++
.../bindings/display/msm/qcom,sm7150-dpu.yaml | 3 +++
.../bindings/display/msm/qcom,sm8150-dpu.yaml | 3 +++
.../bindings/display/msm/qcom,sm8650-dpu.yaml | 26 ++++++++++++++++++++++
13 files changed, 61 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/msm/dpu-common.yaml b/Documentation/devicetree/bindings/display/msm/dpu-common.yaml
index 3f953aa5e694..c67199011f26 100644
--- a/Documentation/devicetree/bindings/display/msm/dpu-common.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dpu-common.yaml
@@ -26,7 +26,8 @@ properties:
maxItems: 1
power-domains:
- maxItems: 1
+ minItems: 1
+ maxItems: 2
operating-points-v2: true
opp-table:
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,kaanapali-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,kaanapali-mdss.yaml
index 9f935defd6b1..6d6391970d6b 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,kaanapali-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,kaanapali-mdss.yaml
@@ -125,7 +125,9 @@ examples:
operating-points-v2 = <&mdp_opp_table>;
- power-domains = <&rpmhpd RPMHPD_MMCX>;
+ power-domains = <&mdss_gdsc>,
+ <&mdss_int2_gdsc>;
+ power-domain-names = "core", "int2";
ports {
#address-cells = <1>;
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,msm8998-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,msm8998-dpu.yaml
index d5a64c8a921f..bded43a34b87 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,msm8998-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,msm8998-dpu.yaml
@@ -15,6 +15,9 @@ properties:
compatible:
const: qcom,msm8998-dpu
+ power-domains:
+ maxItems: 1
+
reg:
items:
- description: Address offset and size for mdp register set
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-dpu.yaml
index 034d3df8d247..6c1476a0faaf 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,qcm2290-dpu.yaml
@@ -19,6 +19,9 @@ properties:
- const: qcom,shikra-dpu
- const: qcom,qcm2290-dpu
+ power-domains:
+ maxItems: 1
+
reg:
items:
- description: Address offset and size for mdp register set
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc7180-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc7180-dpu.yaml
index 8137618237ce..3fa0f02f4489 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sc7180-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sc7180-dpu.yaml
@@ -19,6 +19,9 @@ properties:
- qcom,sm6350-dpu
- qcom,sm6375-dpu
+ power-domains:
+ maxItems: 1
+
reg:
items:
- description: Address offset and size for mdp register set
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc7280-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc7280-dpu.yaml
index df9ec15ad6c3..7703d9b017cf 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sc7280-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sc7280-dpu.yaml
@@ -24,6 +24,9 @@ properties:
- qcom,sm8450-dpu
- qcom,sm8550-dpu
+ power-domains:
+ maxItems: 1
+
reg:
items:
- description: Address offset and size for mdp register set
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc8180x-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc8180x-dpu.yaml
index a411126708b8..8e10f9e0d176 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sc8180x-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sc8180x-dpu.yaml
@@ -15,6 +15,9 @@ properties:
compatible:
const: qcom,sc8180x-dpu
+ power-domains:
+ maxItems: 1
+
reg:
items:
- description: Address offset and size for mdp register set
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sdm845-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sdm845-dpu.yaml
index dc11fd421a27..9dafe1d827e1 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sdm845-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sdm845-dpu.yaml
@@ -17,6 +17,9 @@ properties:
- qcom,sdm670-dpu
- qcom,sdm845-dpu
+ power-domains:
+ maxItems: 1
+
reg:
items:
- description: Address offset and size for mdp register set
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6115-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6115-dpu.yaml
index 510eb6c19364..173c2f034241 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm6115-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm6115-dpu.yaml
@@ -15,6 +15,9 @@ properties:
compatible:
const: qcom,sm6115-dpu
+ power-domains:
+ maxItems: 1
+
reg:
items:
- description: MDP register set
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm6150-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm6150-dpu.yaml
index 8cbf99f9fcba..b8344ff8895a 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm6150-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm6150-dpu.yaml
@@ -16,6 +16,9 @@ properties:
compatible:
const: qcom,sm6150-dpu
+ power-domains:
+ maxItems: 1
+
reg:
items:
- description: Address offset and size for mdp register set
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm7150-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm7150-dpu.yaml
index c79b2d442800..8e50942f3e1f 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm7150-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm7150-dpu.yaml
@@ -15,6 +15,9 @@ properties:
compatible:
const: qcom,sm7150-dpu
+ power-domains:
+ maxItems: 1
+
reg:
items:
- description: Address offset and size for mdp register set
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8150-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8150-dpu.yaml
index a88d22f30a60..b407bc399462 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm8150-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm8150-dpu.yaml
@@ -17,6 +17,9 @@ properties:
- qcom,sm8150-dpu
- qcom,sm8250-dpu
+ power-domains:
+ maxItems: 1
+
reg:
items:
- description: Address offset and size for mdp register set
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sm8650-dpu.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sm8650-dpu.yaml
index aa0cf0ec5b93..7f8e52d52078 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sm8650-dpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sm8650-dpu.yaml
@@ -61,6 +61,32 @@ required:
- clocks
- clock-names
+allOf:
+ - if:
+ properties:
+ compatible:
+ const: qcom,kaanapali-dpu
+ required:
+ - compatible
+ then:
+ properties:
+ power-domains:
+ minItems: 2
+
+ power-domain-names:
+ items:
+ - const: core
+ - const: int2
+
+ required:
+ - power-domain-names
+ else:
+ properties:
+ power-domains:
+ maxItems: 1
+
+ power-domain-names: false
+
unevaluatedProperties: false
examples:
--
2.43.0
next prev parent reply other threads:[~2026-10-23 8:13 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-23 8:13 [PATCH v4 0/3] drm/msm/dpu: Add INT2 GDSC power domain support for Kaanapali Yongxing Mou
2026-10-23 8:13 ` Yongxing Mou [this message]
2026-10-23 8:13 ` [PATCH v4 2/3] drm/msm/dpu: Attach CORE and INT2 power domains on Kaanapali Yongxing Mou
2026-10-23 8:13 ` [PATCH v4 3/3] arm64: dts: qcom: Add INT2 GDSC to Kaanapali DPU Yongxing Mou
2026-10-23 10:03 ` Konrad Dybcio
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