diff mbox series

[v2,4/5] dt-bindings: display/msm: add stream 1 pixel clock binding

Message ID 20250530-dp_mst_bindings-v2-4-f925464d32a8@oss.qualcomm.com
State New
Headers show
Series dt-bindings: msm/dp: add support for pixel clock to driver another stream | expand

Commit Message

Jessica Zhang May 30, 2025, 5:47 p.m. UTC 
From: Abhinav Kumar <quic_abhinavk@quicinc.com>

On some chipsets such as qcom,sa8775p-dp, qcom,sm8650-dp and some more,
the display port controller can support more than one pixel stream
(multi-stream transport).

To support MST on such chipsets, add the binding for stream 1 pixel
clock for display port controller.

Since this mode is not supported on all chipsets, add exception
rules and min/max items to clearly mark which chipsets support
only SST mode (single stream) and which ones support MST.

Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Jessica Zhang <jessica.zhang@oss.qualcomm.com>
---
 .../bindings/display/msm/dp-controller.yaml        | 36 ++++++++++++++++++++--
 .../bindings/display/msm/qcom,sa8775p-mdss.yaml    |  9 ++++--
 .../bindings/display/msm/qcom,sar2130p-mdss.yaml   |  9 ++++--
 .../bindings/display/msm/qcom,sc7280-mdss.yaml     |  9 ++++--
 .../bindings/display/msm/qcom,x1e80100-mdss.yaml   |  6 ++--
 5 files changed, 56 insertions(+), 13 deletions(-)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
index a63efd8de42c..81ffc141e00d 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -54,25 +54,31 @@  properties:
     maxItems: 1
 
   clocks:
+    minItems: 5
     items:
       - description: AHB clock to enable register access
       - description: Display Port AUX clock
       - description: Display Port Link clock
       - description: Link interface clock between DP and PHY
-      - description: Display Port Pixel clock
+      - description: Display Port stream 0 Pixel clock
+      - description: Display Port stream 1 Pixel clock
 
   clock-names:
+    minItems: 5
     items:
       - const: core_iface
       - const: core_aux
       - const: ctrl_link
       - const: ctrl_link_iface
       - const: stream_pixel
+      - const: stream_1_pixel
 
   assigned-clocks:
+    minItems: 2
     items:
       - description: link clock source
-      - description: pixel clock source
+      - description: stream 0 pixel clock source
+      - description: stream 1 pixel clock source
 
   phys:
     maxItems: 1
@@ -174,6 +180,32 @@  allOf:
       required:
         - "#sound-dai-cells"
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,sc7280-dp
+              - qcom,sm8150-dp
+              - qcom,sc8180x-dp
+              - qcom,sc8280xp-dp
+              - qcom,sm8350-dp
+              - qcom,sm8450-dp
+              - qcom,sm8650-dp
+              - qcom,sa8775p-dp
+              - qcom,x1e80100-dp
+    then:
+      properties:
+        clocks:
+          minItems: 6
+          maxItems: 6
+
+    else:
+      properties:
+        clocks:
+          minItems: 5
+          maxItems: 5
+
 additionalProperties: false
 
 examples:
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sa8775p-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sa8775p-mdss.yaml
index 951e446dc828..4fdb78a400c4 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sa8775p-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sa8775p-mdss.yaml
@@ -384,15 +384,18 @@  examples:
                      <&dispcc_dptx0_aux_clk>,
                      <&dispcc_dptx0_link_clk>,
                      <&dispcc_dptx0_link_intf_clk>,
-                     <&dispcc_dptx0_pixel0_clk>;
+                     <&dispcc_dptx0_pixel0_clk>,
+                     <&dispcc_dptx0_pixel1_clk>;
             clock-names = "core_iface",
                           "core_aux",
                           "ctrl_link",
                           "ctrl_link_iface",
-                          "stream_pixel";
+                          "stream_pixel",
+                          "stream_1_pixel";
 
             assigned-clocks = <&dispcc_mdss_dptx0_link_clk_src>,
-                              <&dispcc_mdss_dptx0_pixel0_clk_src>;
+                              <&dispcc_mdss_dptx0_pixel0_clk_src>,
+                              <&dispcc_mdss_dptx0_pixel1_clk_src>;
 
             phys = <&mdss0_dp0_phy>;
             phy-names = "dp";
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sar2130p-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sar2130p-mdss.yaml
index a1f5a6bd328e..e1b2788e2710 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sar2130p-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sar2130p-mdss.yaml
@@ -207,15 +207,18 @@  examples:
                      <&dispcc_disp_cc_mdss_dptx0_aux_clk>,
                      <&dispcc_disp_cc_mdss_dptx0_link_clk>,
                      <&dispcc_disp_cc_mdss_dptx0_link_intf_clk>,
-                     <&dispcc_disp_cc_mdss_dptx0_pixel0_clk>;
+                     <&dispcc_disp_cc_mdss_dptx0_pixel0_clk>,
+                     <&dispcc_disp_cc_mdss_dptx0_pixel1_clk>;
             clock-names = "core_iface",
                           "core_aux",
                           "ctrl_link",
                           "ctrl_link_iface",
-                          "stream_pixel";
+                          "stream_pixel",
+                          "stream_1_pixel";
 
             assigned-clocks = <&dispcc_disp_cc_mdss_dptx0_link_clk_src>,
-                              <&dispcc_disp_cc_mdss_dptx0_pixel0_clk_src>;
+                              <&dispcc_disp_cc_mdss_dptx0_pixel0_clk_src>,
+                              <&dispcc_disp_cc_mdss_dptx0_pixel1_clk_src>;
 
             phys = <&usb_dp_qmpphy QMP_USB43DP_DP_PHY>;
             phy-names = "dp";
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,sc7280-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,sc7280-mdss.yaml
index 7842ef274258..445224758d34 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,sc7280-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,sc7280-mdss.yaml
@@ -380,14 +380,17 @@  examples:
                      <&dispcc DISP_CC_MDSS_DP_AUX_CLK>,
                      <&dispcc DISP_CC_MDSS_DP_LINK_CLK>,
                      <&dispcc DISP_CC_MDSS_DP_LINK_INTF_CLK>,
-                     <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK>;
+                     <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK>,
+                     <&dispcc DISP_CC_MDSS_DP_PIXEL1_CLK>;
             clock-names = "core_iface",
                           "core_aux",
                           "ctrl_link",
                           "ctrl_link_iface",
-                          "stream_pixel";
+                          "stream_pixel",
+                          "stream_1_pixel";
             assigned-clocks = <&dispcc DISP_CC_MDSS_DP_LINK_CLK_SRC>,
-                              <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK_SRC>;
+                              <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK_SRC>,
+                              <&dispcc DISP_CC_MDSS_DP_PIXEL1_CLK_SRC>;
             phys = <&dp_phy>;
             phy-names = "dp";
 
diff --git a/Documentation/devicetree/bindings/display/msm/qcom,x1e80100-mdss.yaml b/Documentation/devicetree/bindings/display/msm/qcom,x1e80100-mdss.yaml
index 791de8a277cb..1ade6aed2e20 100644
--- a/Documentation/devicetree/bindings/display/msm/qcom,x1e80100-mdss.yaml
+++ b/Documentation/devicetree/bindings/display/msm/qcom,x1e80100-mdss.yaml
@@ -183,11 +183,13 @@  examples:
                <&dispcc_dptx0_aux_clk>,
                <&dispcc_dptx0_link_clk>,
                <&dispcc_dptx0_link_intf_clk>,
-               <&dispcc_dptx0_pixel0_clk>;
+               <&dispcc_dptx0_pixel0_clk>,
+               <&dispcc_dptx0_pixel1_clk>;
             clock-names = "core_iface", "core_aux",
                     "ctrl_link",
                     "ctrl_link_iface",
-                    "stream_pixel";
+                    "stream_pixel",
+                    "stream_1_pixel";
 
             assigned-clocks = <&dispcc_mdss_dptx0_link_clk_src>,
                   <&dispcc_mdss_dptx0_pixel0_clk_src>;