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* [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings
@ 2021-05-21 10:27 Krishna Manikandan
  2021-05-21 10:27 ` [PATCH v17 2/4] dt-bindings: msm: dsi: add yaml schemas for DSI bindings Krishna Manikandan
                   ` (5 more replies)
  0 siblings, 6 replies; 19+ messages in thread
From: Krishna Manikandan @ 2021-05-21 10:27 UTC (permalink / raw)
  To: dri-devel, linux-arm-msm, freedreno, devicetree, linux-kernel
  Cc: Krishna Manikandan, kalyan_t, tanmay, abhinavk, robdclark,
	swboyd, bjorn.andersson, vinod.koul, dianders, khsieh, robh+dt,
	sean, robh

MSM Mobile Display Subsystem (MDSS) encapsulates sub-blocks
like DPU display controller, DSI etc. Add YAML schema
for DPU device tree bindings.

Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>

Changes in v2:
    - Changed dpu to DPU (Sam Ravnborg)
    - Fixed indentation issues (Sam Ravnborg)
    - Added empty line between different properties (Sam Ravnborg)
    - Replaced reference txt files with  their corresponding
      yaml files (Sam Ravnborg)
    - Modified the file to use "|" only when it is
      necessary (Sam Ravnborg)

Changes in v3:
    - Corrected the license used (Rob Herring)
    - Added maxItems for properties (Rob Herring)
    - Dropped generic descriptions (Rob Herring)
    - Added ranges property (Rob Herring)
    - Corrected the indendation (Rob Herring)
    - Added additionalProperties (Rob Herring)
    - Split dsi file into two, one for dsi controller
      and another one for dsi phy per target (Rob Herring)
    - Corrected description for pinctrl-names (Rob Herring)
    - Corrected the examples used in yaml file (Rob Herring)
    - Delete dsi.txt and dpu.txt (Rob Herring)

Changes in v4:
    - Move schema up by one level (Rob Herring)
    - Add patternProperties for mdp node (Rob Herring)
    - Corrected description of some properties (Rob Herring)

Changes in v5:
    - Correct the indentation (Rob Herring)
    - Remove unnecessary description from properties (Rob Herring)
    - Correct the number of interconnect entries (Rob Herring)
    - Add interconnect names for sc7180 (Rob Herring)
    - Add description for ports (Rob Herring)
    - Remove common properties (Rob Herring)
    - Add unevalutatedProperties (Rob Herring)
    - Reference existing dsi controller yaml in the common
      dsi controller file (Rob Herring)
    - Correct the description of clock names to include only the
      clocks that are required (Rob Herring)
    - Remove properties which are already covered under the common
      binding (Rob Herring)
    - Add dsi phy supply nodes which are required for sc7180 and
      sdm845 targets (Rob Herring)
    - Add type ref for syscon-sfpb (Rob Herring)

Changes in v6:
    - Fixed errors during dt_binding_check (Rob Herring)
    - Add maxItems for phys and phys-names (Rob Herring)
    - Use unevaluatedProperties wherever required (Rob Herring)
    - Removed interrupt controller from required properties for
      dsi controller (Rob Herring)
    - Add constraints for dsi-phy reg-names based on the compatible
      phy version (Rob Herring)
    - Add constraints for dsi-phy supply nodes based on the
      compatible phy version (Rob Herring)

Changes in v7:
    - Add default value for qcom,mdss-mdp-transfer-time-us (Rob Herring)
    - Modify the schema for data-lanes (Rob Herring)
    - Split the phy schema into separate schemas based on
      the phy version (Rob Herring)

Changes in v8:
    - Resolve merge conflicts with latest dsi.txt file
    - Include dp yaml change also in the same series

Changes in v9:
    - Combine target specific dsi controller yaml files
      to a single yaml file (Rob Herring)
    - Combine target specific dsi phy yaml files into a
      single yaml file (Rob Herring)
    - Use unevaluatedProperties and additionalProperties
      wherever required
    - Remove duplicate properties from common yaml files

Changes in v10:
    - Split the patch into separate patches for DPU, DSI and
      PHY (Stephen Boyd)
    - Drop unnecessary fullstop (Stephen Boyd)
    - Add newline whereever required (Stephen Boyd)
    - Add description for clock used (Stephen Boyd)
    - Modify the description for interconnect entries  (Stephen Boyd)
    - Drop assigned clock entries as it a generic property (Stephen Boyd)
    - Correct the definition for interrupts (Stephen Boyd)
    - Drop clock names from required properties (Stephen Boyd)
    - Drop labels for display nodes from example (Stephen Boyd)
    - Drop flags from interrupts entries (Stephen Boyd)

Changes in v11:
    - Drop maxItems for clocks (Stephen Boyd)

Changes in v12:
    - Add description for register property (Stephen Boyd)
    - Add maxItems for interrupts (Stephen Boyd)
    - Add description for iommus property (Stephen Boyd)
    - Add description for interconnects (Stephen Boyd)
    - Change display node name to display_controller (Stephen Boyd)

Changes in v13:
    - Add maxItems for reg property (Stephen Boyd)
    - Add ranges property in example (Stephen Boyd)
    - Modify description for iommus property (Stephen Boyd)
    - Add Dp bindings for ports in the same patch (Stephen Boyd)
    - Remove soc from examples and change address and size cells
      accordingly (Stephen Boyd)
    - Add reference for ports

Changes in v14:
    - Modify title for SC7180 and SDM845 yaml files (Stephen Boyd)
    - Add required list for display-controller node (Stephen Boyd)

Changes in v16:
    - Add reference for port (Rob Herring)
    - Make additionalProperties as false (Rob Herring)
---
 .../bindings/display/msm/dpu-sc7180.yaml           | 228 +++++++++++++++++++++
 .../bindings/display/msm/dpu-sdm845.yaml           | 212 +++++++++++++++++++
 .../devicetree/bindings/display/msm/dpu.txt        | 141 -------------
 3 files changed, 440 insertions(+), 141 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
 create mode 100644 Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml
 delete mode 100644 Documentation/devicetree/bindings/display/msm/dpu.txt

diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
new file mode 100644
index 0000000..12a86b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
@@ -0,0 +1,228 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/dpu-sc7180.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display DPU dt properties for SC7180 target
+
+maintainers:
+  - Krishna Manikandan <mkrishn@codeaurora.org>
+
+description: |
+  Device tree bindings for MSM Mobile Display Subsystem(MDSS) that encapsulates
+  sub-blocks like DPU display controller, DSI and DP interfaces etc. Device tree
+  bindings of MDSS and DPU are mentioned for SC7180 target.
+
+properties:
+  compatible:
+    items:
+      - const: qcom,sc7180-mdss
+
+  reg:
+    maxItems: 1
+
+  reg-names:
+    const: mdss
+
+  power-domains:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Display AHB clock from gcc
+      - description: Display AHB clock from dispcc
+      - description: Display core clock
+
+  clock-names:
+    items:
+      - const: iface
+      - const: ahb
+      - const: core
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  "#address-cells": true
+
+  "#size-cells": true
+
+  "#interrupt-cells":
+    const: 1
+
+  iommus:
+    items:
+      - description: Phandle to apps_smmu node with SID mask for Hard-Fail port0
+
+  ranges: true
+
+  interconnects:
+    items:
+      - description: Interconnect path specifying the port ids for data bus
+
+  interconnect-names:
+    const: mdp0-mem
+
+patternProperties:
+  "^display-controller@[0-9a-f]+$":
+    type: object
+    description: Node containing the properties of DPU.
+
+    properties:
+      compatible:
+        items:
+          - const: qcom,sc7180-dpu
+
+      reg:
+        items:
+          - description: Address offset and size for mdp register set
+          - description: Address offset and size for vbif register set
+
+      reg-names:
+        items:
+          - const: mdp
+          - const: vbif
+
+      clocks:
+        items:
+          - description: Display hf axi clock
+          - description: Display ahb clock
+          - description: Display rotator clock
+          - description: Display lut clock
+          - description: Display core clock
+          - description: Display vsync clock
+
+      clock-names:
+        items:
+          - const: bus
+          - const: iface
+          - const: rot
+          - const: lut
+          - const: core
+          - const: vsync
+
+      interrupts:
+        maxItems: 1
+
+      power-domains:
+        maxItems: 1
+
+      operating-points-v2: true
+
+      ports:
+        $ref: /schemas/graph.yaml#/properties/ports
+        description: |
+          Contains the list of output ports from DPU device. These ports
+          connect to interfaces that are external to the DPU hardware,
+          such as DSI, DP etc. Each output port contains an endpoint that
+          describes how it is connected to an external interface.
+
+        properties:
+          port@0:
+            $ref: /schemas/graph.yaml#/properties/port
+            description: DPU_INTF1 (DSI1)
+
+          port@2:
+            $ref: /schemas/graph.yaml#/properties/port
+            description: DPU_INTF0 (DP)
+
+        required:
+          - port@0
+
+    required:
+      - compatible
+      - reg
+      - reg-names
+      - clocks
+      - interrupts
+      - power-domains
+      - operating-points-v2
+      - ports
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - power-domains
+  - clocks
+  - interrupts
+  - interrupt-controller
+  - iommus
+  - ranges
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
+    #include <dt-bindings/clock/qcom,gcc-sc7180.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interconnect/qcom,sdm845.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
+
+    display-subsystem@ae00000 {
+         #address-cells = <1>;
+         #size-cells = <1>;
+         compatible = "qcom,sc7180-mdss";
+         reg = <0xae00000 0x1000>;
+         reg-names = "mdss";
+         power-domains = <&dispcc MDSS_GDSC>;
+         clocks = <&gcc GCC_DISP_AHB_CLK>,
+                  <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                  <&dispcc DISP_CC_MDSS_MDP_CLK>;
+         clock-names = "iface", "ahb", "core";
+
+         interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+         interrupt-controller;
+         #interrupt-cells = <1>;
+
+         interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>;
+         interconnect-names = "mdp0-mem";
+
+         iommus = <&apps_smmu 0x800 0x2>;
+         ranges;
+
+         display-controller@ae01000 {
+                   compatible = "qcom,sc7180-dpu";
+                   reg = <0x0ae01000 0x8f000>,
+                         <0x0aeb0000 0x2008>;
+
+                   reg-names = "mdp", "vbif";
+
+                   clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
+                            <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                            <&dispcc DISP_CC_MDSS_ROT_CLK>,
+                            <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
+                            <&dispcc DISP_CC_MDSS_MDP_CLK>,
+                            <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+                   clock-names = "bus", "iface", "rot", "lut", "core",
+                                 "vsync";
+
+                   interrupt-parent = <&mdss>;
+                   interrupts = <0>;
+                   power-domains = <&rpmhpd SC7180_CX>;
+                   operating-points-v2 = <&mdp_opp_table>;
+
+                   ports {
+                           #address-cells = <1>;
+                           #size-cells = <0>;
+
+                           port@0 {
+                                   reg = <0>;
+                                   dpu_intf1_out: endpoint {
+                                                  remote-endpoint = <&dsi0_in>;
+                                   };
+                           };
+
+                            port@2 {
+                                    reg = <2>;
+                                    dpu_intf0_out: endpoint {
+                                                   remote-endpoint = <&dp_in>;
+                                    };
+                            };
+                   };
+         };
+    };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml
new file mode 100644
index 0000000..b4ea7c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml
@@ -0,0 +1,212 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/dpu-sdm845.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display DPU dt properties for SDM845 target
+
+maintainers:
+  - Krishna Manikandan <mkrishn@codeaurora.org>
+
+description: |
+  Device tree bindings for MSM Mobile Display Subsystem(MDSS) that encapsulates
+  sub-blocks like DPU display controller, DSI and DP interfaces etc. Device tree
+  bindings of MDSS and DPU are mentioned for SDM845 target.
+
+properties:
+  compatible:
+    items:
+      - const: qcom,sdm845-mdss
+
+  reg:
+    maxItems: 1
+
+  reg-names:
+    const: mdss
+
+  power-domains:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Display AHB clock from gcc
+      - description: Display AXI clock
+      - description: Display core clock
+
+  clock-names:
+    items:
+      - const: iface
+      - const: bus
+      - const: core
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  "#address-cells": true
+
+  "#size-cells": true
+
+  "#interrupt-cells":
+    const: 1
+
+  iommus:
+    items:
+      - description: Phandle to apps_smmu node with SID mask for Hard-Fail port0
+      - description: Phandle to apps_smmu node with SID mask for Hard-Fail port1
+
+  ranges: true
+
+patternProperties:
+  "^display-controller@[0-9a-f]+$":
+    type: object
+    description: Node containing the properties of DPU.
+
+    properties:
+      compatible:
+        items:
+          - const: qcom,sdm845-dpu
+
+      reg:
+        items:
+          - description: Address offset and size for mdp register set
+          - description: Address offset and size for vbif register set
+
+      reg-names:
+        items:
+          - const: mdp
+          - const: vbif
+
+      clocks:
+        items:
+          - description: Display ahb clock
+          - description: Display axi clock
+          - description: Display core clock
+          - description: Display vsync clock
+
+      clock-names:
+        items:
+          - const: iface
+          - const: bus
+          - const: core
+          - const: vsync
+
+      interrupts:
+        maxItems: 1
+
+      power-domains:
+        maxItems: 1
+
+      operating-points-v2: true
+      ports:
+        $ref: /schemas/graph.yaml#/properties/ports
+        description: |
+          Contains the list of output ports from DPU device. These ports
+          connect to interfaces that are external to the DPU hardware,
+          such as DSI, DP etc. Each output port contains an endpoint that
+          describes how it is connected to an external interface.
+
+        properties:
+          port@0:
+            $ref: /schemas/graph.yaml#/properties/port
+            description: DPU_INTF1 (DSI1)
+
+          port@1:
+            $ref: /schemas/graph.yaml#/properties/port
+            description: DPU_INTF2 (DSI2)
+
+        required:
+          - port@0
+          - port@1
+
+    required:
+      - compatible
+      - reg
+      - reg-names
+      - clocks
+      - interrupts
+      - power-domains
+      - operating-points-v2
+      - ports
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - power-domains
+  - clocks
+  - interrupts
+  - interrupt-controller
+  - iommus
+  - ranges
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+    #include <dt-bindings/clock/qcom,gcc-sdm845.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
+
+    display-subsystem@ae00000 {
+          #address-cells = <1>;
+          #size-cells = <1>;
+          compatible = "qcom,sdm845-mdss";
+          reg = <0x0ae00000 0x1000>;
+          reg-names = "mdss";
+          power-domains = <&dispcc MDSS_GDSC>;
+
+          clocks = <&gcc GCC_DISP_AHB_CLK>,
+                   <&gcc GCC_DISP_AXI_CLK>,
+                   <&dispcc DISP_CC_MDSS_MDP_CLK>;
+          clock-names = "iface", "bus", "core";
+
+          interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+          interrupt-controller;
+          #interrupt-cells = <1>;
+
+          iommus = <&apps_smmu 0x880 0x8>,
+                   <&apps_smmu 0xc80 0x8>;
+          ranges;
+
+          display-controller@ae01000 {
+                    compatible = "qcom,sdm845-dpu";
+                    reg = <0x0ae01000 0x8f000>,
+                          <0x0aeb0000 0x2008>;
+                    reg-names = "mdp", "vbif";
+
+                    clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                             <&dispcc DISP_CC_MDSS_AXI_CLK>,
+                             <&dispcc DISP_CC_MDSS_MDP_CLK>,
+                             <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+                    clock-names = "iface", "bus", "core", "vsync";
+
+                    interrupt-parent = <&mdss>;
+                    interrupts = <0>;
+                    power-domains = <&rpmhpd SDM845_CX>;
+                    operating-points-v2 = <&mdp_opp_table>;
+
+                    ports {
+                           #address-cells = <1>;
+                           #size-cells = <0>;
+
+                           port@0 {
+                                   reg = <0>;
+                                   dpu_intf1_out: endpoint {
+                                                  remote-endpoint = <&dsi0_in>;
+                                   };
+                           };
+
+                           port@1 {
+                                   reg = <1>;
+                                   dpu_intf2_out: endpoint {
+                                                  remote-endpoint = <&dsi1_in>;
+                                   };
+                           };
+                    };
+          };
+    };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/dpu.txt b/Documentation/devicetree/bindings/display/msm/dpu.txt
deleted file mode 100644
index 586e6ea..0000000
--- a/Documentation/devicetree/bindings/display/msm/dpu.txt
+++ /dev/null
@@ -1,141 +0,0 @@
-Qualcomm Technologies, Inc. DPU KMS
-
-Description:
-
-Device tree bindings for MSM Mobile Display Subsystem(MDSS) that encapsulates
-sub-blocks like DPU display controller, DSI and DP interfaces etc.
-The DPU display controller is found in SDM845 SoC.
-
-MDSS:
-Required properties:
-- compatible:  "qcom,sdm845-mdss", "qcom,sc7180-mdss"
-- reg: physical base address and length of controller's registers.
-- reg-names: register region names. The following region is required:
-  * "mdss"
-- power-domains: a power domain consumer specifier according to
-  Documentation/devicetree/bindings/power/power_domain.txt
-- clocks: list of clock specifiers for clocks needed by the device.
-- clock-names: device clock names, must be in same order as clocks property.
-  The following clocks are required:
-  * "iface"
-  * "bus"
-  * "core"
-- interrupts: interrupt signal from MDSS.
-- interrupt-controller: identifies the node as an interrupt controller.
-- #interrupt-cells: specifies the number of cells needed to encode an interrupt
-  source, should be 1.
-- iommus: phandle of iommu device node.
-- #address-cells: number of address cells for the MDSS children. Should be 1.
-- #size-cells: Should be 1.
-- ranges: parent bus address space is the same as the child bus address space.
-- interconnects : interconnect path specifier for MDSS according to
-  Documentation/devicetree/bindings/interconnect/interconnect.txt. Should be
-  2 paths corresponding to 2 AXI ports.
-- interconnect-names : MDSS will have 2 port names to differentiate between the
-  2 interconnect paths defined with interconnect specifier.
-
-Optional properties:
-- assigned-clocks: list of clock specifiers for clocks needing rate assignment
-- assigned-clock-rates: list of clock frequencies sorted in the same order as
-  the assigned-clocks property.
-
-MDP:
-Required properties:
-- compatible: "qcom,sdm845-dpu", "qcom,sc7180-dpu"
-- reg: physical base address and length of controller's registers.
-- reg-names : register region names. The following region is required:
-  * "mdp"
-  * "vbif"
-- clocks: list of clock specifiers for clocks needed by the device.
-- clock-names: device clock names, must be in same order as clocks property.
-  The following clocks are required.
-  * "bus"
-  * "iface"
-  * "core"
-  * "vsync"
-- interrupts: interrupt line from DPU to MDSS.
-- ports: contains the list of output ports from DPU device. These ports connect
-  to interfaces that are external to the DPU hardware, such as DSI, DP etc.
-
-  Each output port contains an endpoint that describes how it is connected to an
-  external interface. These are described by the standard properties documented
-  here:
-	Documentation/devicetree/bindings/graph.txt
-	Documentation/devicetree/bindings/media/video-interfaces.txt
-
-	Port 0 -> DPU_INTF1 (DSI1)
-	Port 1 -> DPU_INTF2 (DSI2)
-
-Optional properties:
-- assigned-clocks: list of clock specifiers for clocks needing rate assignment
-- assigned-clock-rates: list of clock frequencies sorted in the same order as
-  the assigned-clocks property.
-
-Example:
-
-	mdss: mdss@ae00000 {
-		compatible = "qcom,sdm845-mdss";
-		reg = <0xae00000 0x1000>;
-		reg-names = "mdss";
-
-		power-domains = <&clock_dispcc 0>;
-
-		clocks = <&gcc GCC_DISP_AHB_CLK>, <&gcc GCC_DISP_AXI_CLK>,
-			 <&clock_dispcc DISP_CC_MDSS_MDP_CLK>;
-		clock-names = "iface", "bus", "core";
-
-		assigned-clocks = <&clock_dispcc DISP_CC_MDSS_MDP_CLK>;
-		assigned-clock-rates = <300000000>;
-
-		interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
-		interrupt-controller;
-		#interrupt-cells = <1>;
-
-		interconnects = <&rsc_hlos MASTER_MDP0 &rsc_hlos SLAVE_EBI1>,
-				<&rsc_hlos MASTER_MDP1 &rsc_hlos SLAVE_EBI1>;
-
-		interconnect-names = "mdp0-mem", "mdp1-mem";
-
-		iommus = <&apps_iommu 0>;
-
-		#address-cells = <2>;
-		#size-cells = <1>;
-		ranges = <0 0 0xae00000 0xb2008>;
-
-		mdss_mdp: mdp@ae01000 {
-			compatible = "qcom,sdm845-dpu";
-			reg = <0 0x1000 0x8f000>, <0 0xb0000 0x2008>;
-			reg-names = "mdp", "vbif";
-
-			clocks = <&clock_dispcc DISP_CC_MDSS_AHB_CLK>,
-				 <&clock_dispcc DISP_CC_MDSS_AXI_CLK>,
-				 <&clock_dispcc DISP_CC_MDSS_MDP_CLK>,
-				 <&clock_dispcc DISP_CC_MDSS_VSYNC_CLK>;
-			clock-names = "iface", "bus", "core", "vsync";
-
-			assigned-clocks = <&clock_dispcc DISP_CC_MDSS_MDP_CLK>,
-					  <&clock_dispcc DISP_CC_MDSS_VSYNC_CLK>;
-			assigned-clock-rates = <0 0 300000000 19200000>;
-
-			interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
-
-			ports {
-				#address-cells = <1>;
-				#size-cells = <0>;
-
-				port@0 {
-					reg = <0>;
-					dpu_intf1_out: endpoint {
-						remote-endpoint = <&dsi0_in>;
-					};
-				};
-
-				port@1 {
-					reg = <1>;
-					dpu_intf2_out: endpoint {
-						remote-endpoint = <&dsi1_in>;
-					};
-				};
-			};
-		};
-	};
-- 
2.7.4


^ permalink raw reply	[flat|nested] 19+ messages in thread

* [PATCH v17 2/4] dt-bindings: msm: dsi: add yaml schemas for DSI bindings
  2021-05-21 10:27 [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings Krishna Manikandan
@ 2021-05-21 10:27 ` Krishna Manikandan
  2021-05-21 17:14   ` Bjorn Andersson
                     ` (2 more replies)
  2021-05-21 10:27 ` [PATCH v17 3/4] dt-bindings: msm: dsi: add yaml schemas for DSI PHY bindings Krishna Manikandan
                   ` (4 subsequent siblings)
  5 siblings, 3 replies; 19+ messages in thread
From: Krishna Manikandan @ 2021-05-21 10:27 UTC (permalink / raw)
  To: dri-devel, linux-arm-msm, freedreno, devicetree, linux-kernel
  Cc: Krishna Manikandan, kalyan_t, tanmay, abhinavk, robdclark,
	swboyd, bjorn.andersson, vinod.koul, dianders, khsieh, robh+dt,
	sean, robh

Add YAML schema for the device tree bindings for DSI

Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>

Changes in v1:
    - Separate dsi controller bindings to a separate patch (Stephen Boyd)
    - Merge dsi-common-controller.yaml and dsi-controller-main.yaml to
      a single file (Stephen Boyd)
    - Drop supply entries and definitions from properties (Stephen Boyd)
    - Modify phy-names property for dsi controller (Stephen Boyd)
    - Remove boolean from description (Stephen Boyd)
    - Drop pinctrl properties as they are standard entries (Stephen Boyd)
    - Modify the description for ports property and keep the reference
      to the generic binding where this is defined (Stephen Boyd)
    - Add description to clock names (Stephen Boyd)
    - Correct the indendation (Stephen Boyd)
    - Drop the label for display dt nodes and correct the node
      name (Stephen Boyd)

Changes in v2:
    - Drop maxItems for clock (Stephen Boyd)
    - Drop qcom,mdss-mdp-transfer-time-us as it is not used in upstream
      dt file (Stephen Boyd)
    - Keep child node directly under soc node (Stephen Boyd)
    - Drop qcom,sync-dual-dsi as it is not used in upstream dt

Changes in v3:
    - Add description for register property (Stephen Boyd)

Changes in v4:
    - Add maxItems for phys property (Stephen Boyd)
    - Add maxItems for reg property (Stephen Boyd)
    - Add reference for data-lanes property (Stephen Boyd)
    - Remove soc from example (Stephen Boyd)

Changes in v5:
    - Modify title and description (Stephen Boyd)
    - Add required properties for ports node (Stephen Boyd)
    - Add data-lanes in the example (Stephen Boyd)
    - Drop qcom,master-dsi property (Stephen Boyd)

Changes in v6:
    - Add required properties for port@0, port@1 and corresponding
      endpoints (Stephen Boyd)
    - Add address-cells and size-cells for ports (Stephen Boyd)
    - Use additionalProperties instead of unevaluatedProperties (Stephen Boyd)

Changes in v7:
    - Add reference for ports and data-lanes (Rob Herring)
    - Add maxItems and minItems for data-lanes (Rob Herring)

Changes in v8:
    - Drop common properties and description from ports (Rob Herring)
    - Add reference for endpoint (Rob Herring)
    - Add correct reference for data-lanes (Rob Herring)
    - Drop common properties from required list for ports (Rob Herring)
---
 .../bindings/display/msm/dsi-controller-main.yaml  | 185 +++++++++++++++
 .../devicetree/bindings/display/msm/dsi.txt        | 249 ---------------------
 2 files changed, 185 insertions(+), 249 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
 delete mode 100644 Documentation/devicetree/bindings/display/msm/dsi.txt

diff --git a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
new file mode 100644
index 0000000..df6a750
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
@@ -0,0 +1,185 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/dsi-controller-main.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display DSI controller
+
+maintainers:
+  - Krishna Manikandan <mkrishn@codeaurora.org>
+
+allOf:
+  - $ref: "../dsi-controller.yaml#"
+
+properties:
+  compatible:
+    items:
+      - const: qcom,mdss-dsi-ctrl
+
+  reg:
+    maxItems: 1
+
+  reg-names:
+    const: dsi_ctrl
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Display byte clock
+      - description: Display byte interface clock
+      - description: Display pixel clock
+      - description: Display escape clock
+      - description: Display AHB clock
+      - description: Display AXI clock
+
+  clock-names:
+    items:
+      - const: byte
+      - const: byte_intf
+      - const: pixel
+      - const: core
+      - const: iface
+      - const: bus
+
+  phys:
+    maxItems: 1
+
+  phy-names:
+    const: dsi
+
+  "#address-cells": true
+
+  "#size-cells": true
+
+  syscon-sfpb:
+    description: A phandle to mmss_sfpb syscon node (only for DSIv2).
+    $ref: "/schemas/types.yaml#/definitions/phandle"
+
+  qcom,dual-dsi-mode:
+    type: boolean
+    description: |
+      Indicates if the DSI controller is driving a panel which needs
+      2 DSI links.
+
+  power-domains:
+    maxItems: 1
+
+  operating-points-v2: true
+
+  ports:
+    $ref: "/schemas/graph.yaml#/properties/ports"
+    description: |
+      Contains DSI controller input and output ports as children, each
+      containing one endpoint subnode.
+
+    properties:
+      port@0:
+        $ref: "/schemas/graph.yaml#/properties/port"
+        description: |
+          Input endpoints of the controller.
+        properties:
+          endpoint:
+            $ref: /schemas/media/video-interfaces.yaml#
+            properties:
+              data-lanes:
+                $ref: /schemas/types.yaml#/definitions/uint32-array
+                maxItems: 4
+                minItems: 4
+                items:
+                  enum: [ 0, 1, 2, 3 ]
+
+      port@1:
+        $ref: "/schemas/graph.yaml#/properties/port"
+        description: |
+          Output endpoints of the controller.
+        properties:
+          endpoint:
+            $ref: /schemas/media/video-interfaces.yaml#
+            properties:
+              data-lanes:
+                $ref: /schemas/types.yaml#/definitions/uint32-array
+                maxItems: 4
+                minItems: 4
+                items:
+                  enum: [ 0, 1, 2, 3 ]
+
+    required:
+      - port@0
+      - port@1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - clocks
+  - clock-names
+  - phys
+  - phy-names
+  - power-domains
+  - operating-points-v2
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+     #include <dt-bindings/interrupt-controller/arm-gic.h>
+     #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+     #include <dt-bindings/clock/qcom,gcc-sdm845.h>
+     #include <dt-bindings/power/qcom-rpmpd.h>
+
+     dsi@ae94000 {
+           compatible = "qcom,mdss-dsi-ctrl";
+           reg = <0x0ae94000 0x400>;
+           reg-names = "dsi_ctrl";
+
+           #address-cells = <1>;
+           #size-cells = <0>;
+
+           interrupt-parent = <&mdss>;
+           interrupts = <4>;
+
+           clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK>,
+                    <&dispcc DISP_CC_MDSS_BYTE0_INTF_CLK>,
+                    <&dispcc DISP_CC_MDSS_PCLK0_CLK>,
+                    <&dispcc DISP_CC_MDSS_ESC0_CLK>,
+                    <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                    <&dispcc DISP_CC_MDSS_AXI_CLK>;
+           clock-names = "byte",
+                         "byte_intf",
+                         "pixel",
+                         "core",
+                         "iface",
+                         "bus";
+
+           phys = <&dsi0_phy>;
+           phy-names = "dsi";
+
+           power-domains = <&rpmhpd SC7180_CX>;
+           operating-points-v2 = <&dsi_opp_table>;
+
+           ports {
+                  #address-cells = <1>;
+                  #size-cells = <0>;
+
+                  port@0 {
+                          reg = <0>;
+                          dsi0_in: endpoint {
+                                   remote-endpoint = <&dpu_intf1_out>;
+                          };
+                  };
+
+                  port@1 {
+                          reg = <1>;
+                          dsi0_out: endpoint {
+                                   remote-endpoint = <&sn65dsi86_in>;
+                                   data-lanes = <0 1 2 3>;
+                          };
+                  };
+           };
+     };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/dsi.txt b/Documentation/devicetree/bindings/display/msm/dsi.txt
deleted file mode 100644
index b9a64d3..0000000
--- a/Documentation/devicetree/bindings/display/msm/dsi.txt
+++ /dev/null
@@ -1,249 +0,0 @@
-Qualcomm Technologies Inc. adreno/snapdragon DSI output
-
-DSI Controller:
-Required properties:
-- compatible:
-  * "qcom,mdss-dsi-ctrl"
-- reg: Physical base address and length of the registers of controller
-- reg-names: The names of register regions. The following regions are required:
-  * "dsi_ctrl"
-- interrupts: The interrupt signal from the DSI block.
-- power-domains: Should be <&mmcc MDSS_GDSC>.
-- clocks: Phandles to device clocks.
-- clock-names: the following clocks are required:
-  * "mdp_core"
-  * "iface"
-  * "bus"
-  * "core_mmss"
-  * "byte"
-  * "pixel"
-  * "core"
-  For DSIv2, we need an additional clock:
-   * "src"
-  For DSI6G v2.0 onwards, we need also need the clock:
-   * "byte_intf"
-- assigned-clocks: Parents of "byte" and "pixel" for the given platform.
-- assigned-clock-parents: The Byte clock and Pixel clock PLL outputs provided
-  by a DSI PHY block. See [1] for details on clock bindings.
-- vdd-supply: phandle to vdd regulator device node
-- vddio-supply: phandle to vdd-io regulator device node
-- vdda-supply: phandle to vdda regulator device node
-- phys: phandle to DSI PHY device node
-- phy-names: the name of the corresponding PHY device
-- syscon-sfpb: A phandle to mmss_sfpb syscon node (only for DSIv2)
-- ports: Contains 2 DSI controller ports as child nodes. Each port contains
-  an endpoint subnode as defined in [2] and [3].
-
-Optional properties:
-- panel@0: Node of panel connected to this DSI controller.
-  See files in [4] for each supported panel.
-- qcom,dual-dsi-mode: Boolean value indicating if the DSI controller is
-  driving a panel which needs 2 DSI links.
-- qcom,master-dsi: Boolean value indicating if the DSI controller is driving
-  the master link of the 2-DSI panel.
-- qcom,sync-dual-dsi: Boolean value indicating if the DSI controller is
-  driving a 2-DSI panel whose 2 links need receive command simultaneously.
-- pinctrl-names: the pin control state names; should contain "default"
-- pinctrl-0: the default pinctrl state (active)
-- pinctrl-n: the "sleep" pinctrl state
-- ports: contains DSI controller input and output ports as children, each
-  containing one endpoint subnode.
-
-  DSI Endpoint properties:
-  - remote-endpoint: For port@0, set to phandle of the connected panel/bridge's
-    input endpoint. For port@1, set to the MDP interface output. See [2] for
-    device graph info.
-
-  - data-lanes: this describes how the physical DSI data lanes are mapped
-    to the logical lanes on the given platform. The value contained in
-    index n describes what physical lane is mapped to the logical lane n
-    (DATAn, where n lies between 0 and 3). The clock lane position is fixed
-    and can't be changed. Hence, they aren't a part of the DT bindings. See
-    [3] for more info on the data-lanes property.
-
-    For example:
-
-    data-lanes = <3 0 1 2>;
-
-    The above mapping describes that the logical data lane DATA0 is mapped to
-    the physical data lane DATA3, logical DATA1 to physical DATA0, logic DATA2
-    to phys DATA1 and logic DATA3 to phys DATA2.
-
-    There are only a limited number of physical to logical mappings possible:
-    <0 1 2 3>
-    <1 2 3 0>
-    <2 3 0 1>
-    <3 0 1 2>
-    <0 3 2 1>
-    <1 0 3 2>
-    <2 1 0 3>
-    <3 2 1 0>
-
-DSI PHY:
-Required properties:
-- compatible: Could be the following
-  * "qcom,dsi-phy-28nm-hpm"
-  * "qcom,dsi-phy-28nm-lp"
-  * "qcom,dsi-phy-20nm"
-  * "qcom,dsi-phy-28nm-8960"
-  * "qcom,dsi-phy-14nm"
-  * "qcom,dsi-phy-14nm-660"
-  * "qcom,dsi-phy-10nm"
-  * "qcom,dsi-phy-10nm-8998"
-  * "qcom,dsi-phy-7nm"
-  * "qcom,dsi-phy-7nm-8150"
-- reg: Physical base address and length of the registers of PLL, PHY. Some
-  revisions require the PHY regulator base address, whereas others require the
-  PHY lane base address. See below for each PHY revision.
-- reg-names: The names of register regions. The following regions are required:
-  For DSI 28nm HPM/LP/8960 PHYs and 20nm PHY:
-  * "dsi_pll"
-  * "dsi_phy"
-  * "dsi_phy_regulator"
-  For DSI 14nm, 10nm and 7nm PHYs:
-  * "dsi_pll"
-  * "dsi_phy"
-  * "dsi_phy_lane"
-- clock-cells: Must be 1. The DSI PHY block acts as a clock provider, creating
-  2 clocks: A byte clock (index 0), and a pixel clock (index 1).
-- power-domains: Should be <&mmcc MDSS_GDSC>.
-- clocks: Phandles to device clocks. See [1] for details on clock bindings.
-- clock-names: the following clocks are required:
-  * "iface"
-  * "ref" (only required for new DTS files/entries)
-  For 28nm HPM/LP, 28nm 8960 PHYs:
-- vddio-supply: phandle to vdd-io regulator device node
-  For 20nm PHY:
-- vddio-supply: phandle to vdd-io regulator device node
-- vcca-supply: phandle to vcca regulator device node
-  For 14nm PHY:
-- vcca-supply: phandle to vcca regulator device node
-  For 10nm and 7nm PHY:
-- vdds-supply: phandle to vdds regulator device node
-
-Optional properties:
-- qcom,dsi-phy-regulator-ldo-mode: Boolean value indicating if the LDO mode PHY
-  regulator is wanted.
-- qcom,mdss-mdp-transfer-time-us:	Specifies the dsi transfer time for command mode
-					panels in microseconds. Driver uses this number to adjust
-					the clock rate according to the expected transfer time.
-					Increasing this value would slow down the mdp processing
-					and can result in slower performance.
-					Decreasing this value can speed up the mdp processing,
-					but this can also impact power consumption.
-					As a rule this time should not be higher than the time
-					that would be expected with the processing at the
-					dsi link rate since anyways this would be the maximum
-					transfer time that could be achieved.
-					If ping pong split is enabled, this time should not be higher
-					than two times the dsi link rate time.
-					If the property is not specified, then the default value is 14000 us.
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/graph.txt
-[3] Documentation/devicetree/bindings/media/video-interfaces.txt
-[4] Documentation/devicetree/bindings/display/panel/
-
-Example:
-	dsi0: dsi@fd922800 {
-		compatible = "qcom,mdss-dsi-ctrl";
-		qcom,dsi-host-index = <0>;
-		interrupt-parent = <&mdp>;
-		interrupts = <4 0>;
-		reg-names = "dsi_ctrl";
-		reg = <0xfd922800 0x200>;
-		power-domains = <&mmcc MDSS_GDSC>;
-		clock-names =
-			"bus",
-			"byte",
-			"core",
-			"core_mmss",
-			"iface",
-			"mdp_core",
-			"pixel";
-		clocks =
-			<&mmcc MDSS_AXI_CLK>,
-			<&mmcc MDSS_BYTE0_CLK>,
-			<&mmcc MDSS_ESC0_CLK>,
-			<&mmcc MMSS_MISC_AHB_CLK>,
-			<&mmcc MDSS_AHB_CLK>,
-			<&mmcc MDSS_MDP_CLK>,
-			<&mmcc MDSS_PCLK0_CLK>;
-
-		assigned-clocks =
-				 <&mmcc BYTE0_CLK_SRC>,
-				 <&mmcc PCLK0_CLK_SRC>;
-		assigned-clock-parents =
-				 <&dsi_phy0 0>,
-				 <&dsi_phy0 1>;
-
-		vdda-supply = <&pma8084_l2>;
-		vdd-supply = <&pma8084_l22>;
-		vddio-supply = <&pma8084_l12>;
-
-		phys = <&dsi_phy0>;
-		phy-names ="dsi-phy";
-
-		qcom,dual-dsi-mode;
-		qcom,master-dsi;
-		qcom,sync-dual-dsi;
-
-		qcom,mdss-mdp-transfer-time-us = <12000>;
-
-		pinctrl-names = "default", "sleep";
-		pinctrl-0 = <&dsi_active>;
-		pinctrl-1 = <&dsi_suspend>;
-
-		ports {
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			port@0 {
-				reg = <0>;
-				dsi0_in: endpoint {
-					remote-endpoint = <&mdp_intf1_out>;
-				};
-			};
-
-			port@1 {
-				reg = <1>;
-				dsi0_out: endpoint {
-					remote-endpoint = <&panel_in>;
-					data-lanes = <0 1 2 3>;
-				};
-			};
-		};
-
-		panel: panel@0 {
-			compatible = "sharp,lq101r1sx01";
-			reg = <0>;
-			link2 = <&secondary>;
-
-			power-supply = <...>;
-			backlight = <...>;
-
-			port {
-				panel_in: endpoint {
-					remote-endpoint = <&dsi0_out>;
-				};
-			};
-		};
-	};
-
-	dsi_phy0: dsi-phy@fd922a00 {
-		compatible = "qcom,dsi-phy-28nm-hpm";
-		qcom,dsi-phy-index = <0>;
-		reg-names =
-			"dsi_pll",
-			"dsi_phy",
-			"dsi_phy_regulator";
-		reg =   <0xfd922a00 0xd4>,
-			<0xfd922b00 0x2b0>,
-			<0xfd922d80 0x7b>;
-		clock-names = "iface";
-		clocks = <&mmcc MDSS_AHB_CLK>;
-		#clock-cells = <1>;
-		vddio-supply = <&pma8084_l12>;
-
-		qcom,dsi-phy-regulator-ldo-mode;
-	};
-- 
2.7.4


^ permalink raw reply	[flat|nested] 19+ messages in thread

* [PATCH v17 3/4] dt-bindings: msm: dsi: add yaml schemas for DSI PHY bindings
  2021-05-21 10:27 [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings Krishna Manikandan
  2021-05-21 10:27 ` [PATCH v17 2/4] dt-bindings: msm: dsi: add yaml schemas for DSI bindings Krishna Manikandan
@ 2021-05-21 10:27 ` Krishna Manikandan
  2021-05-21 17:18   ` Bjorn Andersson
                     ` (2 more replies)
  2021-05-21 10:27 ` [PATCH v17 4/4] dt-bindings: msm/dp: Add bindings of MSM DisplayPort controller Krishna Manikandan
                   ` (3 subsequent siblings)
  5 siblings, 3 replies; 19+ messages in thread
From: Krishna Manikandan @ 2021-05-21 10:27 UTC (permalink / raw)
  To: dri-devel, linux-arm-msm, freedreno, devicetree, linux-kernel
  Cc: Krishna Manikandan, kalyan_t, tanmay, abhinavk, robdclark,
	swboyd, bjorn.andersson, vinod.koul, dianders, khsieh, robh+dt,
	sean, robh

Add YAML schema for the device tree bindings for DSI PHY.

Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>

Changes in v1:
   - Merge dsi-phy.yaml and dsi-phy-10nm.yaml (Stephen Boyd)
   - Remove qcom,dsi-phy-regulator-ldo-mode (Stephen Boyd)
   - Add clock cells properly (Stephen Boyd)
   - Remove unnecessary decription from clock names (Stephen Boyd)
   - Add pin names for the supply entries for 10nm phy which is
     used in sc7180 and sdm845 (Stephen Boyd)
   - Remove unused header files from examples (Stephen Boyd)
   - Drop labels for display nodes and correct node name (Stephen Boyd)

Changes in v2:
   - Drop maxItems for clock (Stephen Boyd)
   - Add vdds supply pin information for sdm845 (Stephen Boyd)
   - Add examples for 14nm, 20nm and 28nm phy yaml files (Stephen Boyd)
   - Keep child nodes directly under soc node (Stephen Boyd)

Changes in v3:
   - Use a separate yaml file to describe the common properties
     for all the dsi phy versions (Stephen Boyd)
   - Remove soc from examples (Stephen Boyd)
   - Add description for register property

Changes in v4:
   - Modify the title for all the phy versions (Stephen Boyd)
   - Drop description for all the phy versions (Stephen Boyd)
   - Modify the description for register property (Stephen Boyd)

Changes in v5:
   - Remove unused properties from common dsi phy file
   - Add clock-cells and phy-cells to required property
     list (Stephen Boyd)

Changes in v6:
   - Add proper compatible string in example
---
 .../bindings/display/msm/dsi-phy-10nm.yaml         | 68 +++++++++++++++++++++
 .../bindings/display/msm/dsi-phy-14nm.yaml         | 66 ++++++++++++++++++++
 .../bindings/display/msm/dsi-phy-20nm.yaml         | 71 ++++++++++++++++++++++
 .../bindings/display/msm/dsi-phy-28nm.yaml         | 68 +++++++++++++++++++++
 .../bindings/display/msm/dsi-phy-common.yaml       | 40 ++++++++++++
 5 files changed, 313 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
 create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml
 create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-20nm.yaml
 create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-28nm.yaml
 create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-common.yaml

diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
new file mode 100644
index 0000000..4a26bef
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/dsi-phy-10nm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display DSI 10nm PHY
+
+maintainers:
+  - Krishna Manikandan <mkrishn@codeaurora.org>
+
+allOf:
+  - $ref: dsi-phy-common.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: qcom,dsi-phy-10nm
+      - const: qcom,dsi-phy-10nm-8998
+
+  reg:
+    items:
+      - description: dsi phy register set
+      - description: dsi phy lane register set
+      - description: dsi pll register set
+
+  reg-names:
+    items:
+      - const: dsi_phy
+      - const: dsi_phy_lane
+      - const: dsi_pll
+
+  vdds-supply:
+    description: |
+      Connected to DSI0_MIPI_DSI_PLL_VDDA0P9 pin for sc7180 target and
+      connected to VDDA_MIPI_DSI_0_PLL_0P9 pin for sdm845 target
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - vdds-supply
+
+unevaluatedProperties: false
+
+examples:
+  - |
+     #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+     #include <dt-bindings/clock/qcom,rpmh.h>
+
+     dsi-phy@ae94400 {
+         compatible = "qcom,dsi-phy-10nm";
+         reg = <0x0ae94400 0x200>,
+               <0x0ae94600 0x280>,
+               <0x0ae94a00 0x1e0>;
+         reg-names = "dsi_phy",
+                     "dsi_phy_lane",
+                     "dsi_pll";
+
+         #clock-cells = <1>;
+         #phy-cells = <0>;
+
+         vdds-supply = <&vdda_mipi_dsi0_pll>;
+         clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                  <&rpmhcc RPMH_CXO_CLK>;
+         clock-names = "iface", "ref";
+     };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml
new file mode 100644
index 0000000..72a00cc
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml
@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/dsi-phy-14nm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display DSI 14nm PHY
+
+maintainers:
+  - Krishna Manikandan <mkrishn@codeaurora.org>
+
+allOf:
+  - $ref: dsi-phy-common.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: qcom,dsi-phy-14nm
+      - const: qcom,dsi-phy-14nm-660
+
+  reg:
+    items:
+      - description: dsi phy register set
+      - description: dsi phy lane register set
+      - description: dsi pll register set
+
+  reg-names:
+    items:
+      - const: dsi_phy
+      - const: dsi_phy_lane
+      - const: dsi_pll
+
+  vcca-supply:
+    description: Phandle to vcca regulator device node.
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - vcca-supply
+
+unevaluatedProperties: false
+
+examples:
+  - |
+     #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+     #include <dt-bindings/clock/qcom,rpmh.h>
+
+     dsi-phy@ae94400 {
+         compatible = "qcom,dsi-phy-14nm";
+         reg = <0x0ae94400 0x200>,
+               <0x0ae94600 0x280>,
+               <0x0ae94a00 0x1e0>;
+         reg-names = "dsi_phy",
+                     "dsi_phy_lane",
+                     "dsi_pll";
+
+         #clock-cells = <1>;
+         #phy-cells = <0>;
+
+         vcca-supply = <&vcca_reg>;
+         clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                  <&rpmhcc RPMH_CXO_CLK>;
+         clock-names = "iface", "ref";
+     };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-20nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-20nm.yaml
new file mode 100644
index 0000000..743806d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-20nm.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/dsi-phy-20nm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display DSI 20nm PHY
+
+maintainers:
+  - Krishna Manikandan <mkrishn@codeaurora.org>
+
+allOf:
+  - $ref: dsi-phy-common.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: qcom,dsi-phy-20nm
+
+  reg:
+    items:
+      - description: dsi pll register set
+      - description: dsi phy register set
+      - description: dsi phy regulator register set
+
+  reg-names:
+    items:
+      - const: dsi_pll
+      - const: dsi_phy
+      - const: dsi_phy_regulator
+
+  vcca-supply:
+    description: Phandle to vcca regulator device node.
+
+  vddio-supply:
+    description: Phandle to vdd-io regulator device node.
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - vddio-supply
+  - vcca-supply
+
+unevaluatedProperties: false
+
+examples:
+  - |
+     #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+     #include <dt-bindings/clock/qcom,rpmh.h>
+
+     dsi-phy@fd922a00 {
+         compatible = "qcom,dsi-phy-20nm";
+         reg = <0xfd922a00 0xd4>,
+               <0xfd922b00 0x2b0>,
+               <0xfd922d80 0x7b>;
+         reg-names = "dsi_pll",
+                     "dsi_phy",
+                     "dsi_phy_regulator";
+
+         #clock-cells = <1>;
+         #phy-cells = <0>;
+
+         vcca-supply = <&vcca_reg>;
+         vddio-supply = <&vddio_reg>;
+
+         clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                  <&rpmhcc RPMH_CXO_CLK>;
+         clock-names = "iface", "ref";
+     };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-28nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-28nm.yaml
new file mode 100644
index 0000000..b106007
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-28nm.yaml
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/dsi-phy-28nm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Display DSI 28nm PHY
+
+maintainers:
+  - Krishna Manikandan <mkrishn@codeaurora.org>
+
+allOf:
+  - $ref: dsi-phy-common.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: qcom,dsi-phy-28nm-hpm
+      - const: qcom,dsi-phy-28nm-lp
+      - const: qcom,dsi-phy-28nm-8960
+
+  reg:
+    items:
+      - description: dsi pll register set
+      - description: dsi phy register set
+      - description: dsi phy regulator register set
+
+  reg-names:
+    items:
+      - const: dsi_pll
+      - const: dsi_phy
+      - const: dsi_phy_regulator
+
+  vddio-supply:
+    description: Phandle to vdd-io regulator device node.
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - vddio-supply
+
+unevaluatedProperties: false
+
+examples:
+  - |
+     #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
+     #include <dt-bindings/clock/qcom,rpmh.h>
+
+     dsi-phy@fd922a00 {
+         compatible = "qcom,dsi-phy-28nm-lp";
+         reg = <0xfd922a00 0xd4>,
+               <0xfd922b00 0x2b0>,
+               <0xfd922d80 0x7b>;
+         reg-names = "dsi_pll",
+                     "dsi_phy",
+                     "dsi_phy_regulator";
+
+         #clock-cells = <1>;
+         #phy-cells = <0>;
+
+         vddio-supply = <&vddio_reg>;
+
+         clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                  <&rpmhcc RPMH_CXO_CLK>;
+         clock-names = "iface", "ref";
+     };
+...
diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-common.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-common.yaml
new file mode 100644
index 0000000..502bdda
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-common.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/dsi-phy-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Description of Qualcomm Display DSI PHY common dt properties
+
+maintainers:
+  - Krishna Manikandan <mkrishn@codeaurora.org>
+
+description: |
+  This defines the DSI PHY dt properties which are common for all
+  dsi phy versions.
+
+properties:
+  "#clock-cells":
+    const: 1
+
+  "#phy-cells":
+    const: 0
+
+  clocks:
+    items:
+      - description: Display AHB clock
+      - description: Board XO source
+
+  clock-names:
+    items:
+      - const: iface
+      - const: ref
+
+required:
+  - clocks
+  - clock-names
+  - "#clock-cells"
+  - "#phy-cells"
+
+additionalProperties: true
+...
-- 
2.7.4


^ permalink raw reply	[flat|nested] 19+ messages in thread

* [PATCH v17 4/4] dt-bindings: msm/dp: Add bindings of MSM DisplayPort controller
  2021-05-21 10:27 [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings Krishna Manikandan
  2021-05-21 10:27 ` [PATCH v17 2/4] dt-bindings: msm: dsi: add yaml schemas for DSI bindings Krishna Manikandan
  2021-05-21 10:27 ` [PATCH v17 3/4] dt-bindings: msm: dsi: add yaml schemas for DSI PHY bindings Krishna Manikandan
@ 2021-05-21 10:27 ` Krishna Manikandan
  2021-05-21 17:19   ` Bjorn Andersson
                     ` (2 more replies)
  2021-05-21 16:00 ` [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings Bjorn Andersson
                   ` (2 subsequent siblings)
  5 siblings, 3 replies; 19+ messages in thread
From: Krishna Manikandan @ 2021-05-21 10:27 UTC (permalink / raw)
  To: dri-devel, linux-arm-msm, freedreno, devicetree, linux-kernel
  Cc: Krishna Manikandan, kalyan_t, tanmay, abhinavk, robdclark,
	swboyd, bjorn.andersson, vinod.koul, dianders, khsieh, robh+dt,
	sean, robh, Chandan Uddaraju, Vara Reddy

Add bindings for Snapdragon DisplayPort controller driver.

Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
Signed-off-by: Vara Reddy <varar@codeaurora.org>
Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>

Changes in V2:
-Provide details about sel-gpio

Changes in V4:
-Provide details about max dp lanes
-Change the commit text

Changes in V5:
-moved dp.txt to yaml file

Changes in v6:
- Squash all AUX LUT properties into one pattern Property
- Make aux-cfg[0-9]-settings properties optional
- Remove PLL/PHY bindings from DP controller dts
- Add DP clocks description
- Remove _clk suffix from clock names
- Rename pixel clock to stream_pixel
- Remove redundant bindings (GPIO, PHY, HDCP clock, etc..)
- Fix indentation
- Add Display Port as interface of DPU in DPU bindings
  and add port mapping accordingly.

Chages in v7:
- Add dp-controller.yaml file common between multiple SOC
- Rename dp-sc7180.yaml to dp-controller-sc7180.yaml
- change compatible string and add SOC name to it.
- Remove Root clock generator for pixel clock
- Add assigned-clocks and assigned-clock-parents bindings
- Remove redundant properties, descriptions and blank lines
- Add DP port in DPU bindings
- Update depends-on tag in commit message and rebase change accordingly

Changes in v8:
- Add MDSS AHB clock in bindings

Changes in v9:
- Remove redundant reg-name property
- Change assigned-clocks and assigned-clocks-parents counts to 2
- Use IRQ flags in example dts

Changes in v10:
- Change title of this patch as it does not contain PLL bindings anymore
- Remove redundant properties
- Remove use of IRQ flag
- Fix ports property

Changes in v11:
- add ports required of both #address-cells and  #size-cells
- add required operating-points-v2
- add required #sound-dai-cells
- add required power-domains
- update maintainer list

Changes in v12:
- remove soc node from examples (Stephen Boyd)
- split dpu-sc7180.yaml changes to separate patch (Stephen Boyd)

Changes in v13:
- add assigned-clocks
- add assigned-clock-parents

Changes in v14:
- add reference for ports (Rob Herring)

Changes in v15:
- drop common properties from ports (Rob Herring)
---
 .../bindings/display/msm/dp-controller.yaml        | 146 +++++++++++++++++++++
 1 file changed, 146 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/msm/dp-controller.yaml

diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
new file mode 100644
index 0000000..64d8d9e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -0,0 +1,146 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/dp-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MSM Display Port Controller
+
+maintainers:
+  - Kuogee Hsieh <khsieh@codeaurora.org>
+
+description: |
+  Device tree bindings for DisplayPort host controller for MSM targets
+  that are compatible with VESA DisplayPort interface specification.
+
+properties:
+  compatible:
+    enum:
+      - qcom,sc7180-dp
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    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
+
+  clock-names:
+    items:
+      - const: core_iface
+      - const: core_aux
+      - const: ctrl_link
+      - const: ctrl_link_iface
+      - const: stream_pixel
+
+  assigned-clocks:
+    items:
+      - description: link clock source
+      - description: pixel clock source
+
+  assigned-clock-parents:
+    items:
+      - description: phy 0 parent
+      - description: phy 1 parent
+
+  phys:
+    maxItems: 1
+
+  phy-names:
+    items:
+      - const: dp
+
+  operating-points-v2:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  "#sound-dai-cells":
+    const: 0
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Input endpoint of the controller
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Output endpoint of the controller
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - phys
+  - phy-names
+  - "#sound-dai-cells"
+  - power-domains
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
+    #include <dt-bindings/power/qcom-aoss-qmp.h>
+    #include <dt-bindings/power/qcom-rpmpd.h>
+
+    displayport-controller@ae90000 {
+        compatible = "qcom,sc7180-dp";
+        reg = <0xae90000 0x1400>;
+        interrupt-parent = <&mdss>;
+        interrupts = <12>;
+        clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
+                 <&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>;
+        clock-names = "core_iface", "core_aux",
+                      "ctrl_link",
+                      "ctrl_link_iface", "stream_pixel";
+
+        assigned-clocks = <&dispcc DISP_CC_MDSS_DP_LINK_CLK_SRC>,
+                          <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK_SRC>;
+
+        assigned-clock-parents = <&dp_phy 0>, <&dp_phy 1>;
+
+        phys = <&dp_phy>;
+        phy-names = "dp";
+
+        #sound-dai-cells = <0>;
+
+        power-domains = <&rpmhpd SC7180_CX>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+                endpoint {
+                    remote-endpoint = <&dpu_intf0_out>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                endpoint {
+                    remote-endpoint = <&typec>;
+                };
+            };
+        };
+    };
+...
-- 
2.7.4


^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings
  2021-05-21 10:27 [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings Krishna Manikandan
                   ` (2 preceding siblings ...)
  2021-05-21 10:27 ` [PATCH v17 4/4] dt-bindings: msm/dp: Add bindings of MSM DisplayPort controller Krishna Manikandan
@ 2021-05-21 16:00 ` Bjorn Andersson
  2021-05-21 17:11   ` Bjorn Andersson
  2021-05-21 20:51   ` Stephen Boyd
  2021-05-21 18:29 ` Rob Herring
  2021-05-21 20:47 ` Stephen Boyd
  5 siblings, 2 replies; 19+ messages in thread
From: Bjorn Andersson @ 2021-05-21 16:00 UTC (permalink / raw)
  To: Krishna Manikandan
  Cc: dri-devel, linux-arm-msm, freedreno, devicetree, linux-kernel,
	kalyan_t, tanmay, abhinavk, robdclark, swboyd, vinod.koul,
	dianders, khsieh, robh+dt, sean, robh

On Fri 21 May 05:27 CDT 2021, Krishna Manikandan wrote:
> diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
[..]
> +      ports:
> +        $ref: /schemas/graph.yaml#/properties/ports
> +        description: |
> +          Contains the list of output ports from DPU device. These ports
> +          connect to interfaces that are external to the DPU hardware,
> +          such as DSI, DP etc. Each output port contains an endpoint that
> +          describes how it is connected to an external interface.
> +
> +        properties:
> +          port@0:
> +            $ref: /schemas/graph.yaml#/properties/port
> +            description: DPU_INTF1 (DSI1)
> +
> +          port@2:
> +            $ref: /schemas/graph.yaml#/properties/port
> +            description: DPU_INTF0 (DP)

Why is port@0 INTF1 and why is port@2 INTF0? In the binding you're
translating the two ports that are described are 0 and 1, representing
INTF1 and INTF2, or DSI1 and DSI2, respectively.

Further more, I have a need for somehow describing the pairing of 4 DP
INTFs (INTF 0, 3, 4 and 5) and how they are connected to the 3+1 DP+eDP
controllers.

Downstream this seems to be handled by adding cell-index to the DP
controllers and then matching that against the numbering in the driver's
INTF array. But rather than adding cell-index to map this, can't we
define that the port index is the INTF-number here?


This would obviously break compatibility with existing DTBs, but we
could start by doing it selectively for the new compatibles, fix up the
existing dts files and then drop the selective application after 1 or 2
LTS releases.

> +
> +        required:
> +          - port@0

Does this imply that I am not allowed to build a product on sc7180 that
only has DP output?

> +
> +    required:
> +      - compatible
> +      - reg
> +      - reg-names
> +      - clocks
> +      - interrupts
> +      - power-domains
> +      - operating-points-v2
> +      - ports
> +
> +required:
> +  - compatible
> +  - reg
> +  - reg-names
> +  - power-domains
> +  - clocks
> +  - interrupts
> +  - interrupt-controller
> +  - iommus
> +  - ranges
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
> +    #include <dt-bindings/clock/qcom,gcc-sc7180.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/interconnect/qcom,sdm845.h>
> +    #include <dt-bindings/power/qcom-rpmpd.h>
> +
> +    display-subsystem@ae00000 {
> +         #address-cells = <1>;
> +         #size-cells = <1>;
> +         compatible = "qcom,sc7180-mdss";
> +         reg = <0xae00000 0x1000>;
> +         reg-names = "mdss";
> +         power-domains = <&dispcc MDSS_GDSC>;
> +         clocks = <&gcc GCC_DISP_AHB_CLK>,
> +                  <&dispcc DISP_CC_MDSS_AHB_CLK>,
> +                  <&dispcc DISP_CC_MDSS_MDP_CLK>;
> +         clock-names = "iface", "ahb", "core";
> +
> +         interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
> +         interrupt-controller;
> +         #interrupt-cells = <1>;
> +
> +         interconnects = <&mmss_noc MASTER_MDP0 &mc_virt SLAVE_EBI1>;
> +         interconnect-names = "mdp0-mem";
> +
> +         iommus = <&apps_smmu 0x800 0x2>;
> +         ranges;
> +
> +         display-controller@ae01000 {
> +                   compatible = "qcom,sc7180-dpu";
> +                   reg = <0x0ae01000 0x8f000>,
> +                         <0x0aeb0000 0x2008>;
> +
> +                   reg-names = "mdp", "vbif";
> +
> +                   clocks = <&gcc GCC_DISP_HF_AXI_CLK>,
> +                            <&dispcc DISP_CC_MDSS_AHB_CLK>,
> +                            <&dispcc DISP_CC_MDSS_ROT_CLK>,
> +                            <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>,
> +                            <&dispcc DISP_CC_MDSS_MDP_CLK>,
> +                            <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
> +                   clock-names = "bus", "iface", "rot", "lut", "core",
> +                                 "vsync";
> +
> +                   interrupt-parent = <&mdss>;
> +                   interrupts = <0>;
> +                   power-domains = <&rpmhpd SC7180_CX>;
> +                   operating-points-v2 = <&mdp_opp_table>;
> +
> +                   ports {
> +                           #address-cells = <1>;
> +                           #size-cells = <0>;
> +
> +                           port@0 {
> +                                   reg = <0>;
> +                                   dpu_intf1_out: endpoint {
> +                                                  remote-endpoint = <&dsi0_in>;
> +                                   };
> +                           };
> +
> +                            port@2 {
> +                                    reg = <2>;
> +                                    dpu_intf0_out: endpoint {
> +                                                   remote-endpoint = <&dp_in>;
> +                                    };
> +                            };

The indentation is inconsistent among the ports.

> +                   };
> +         };
> +    };
> +...
> diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml
> new file mode 100644
> index 0000000..b4ea7c9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml
> @@ -0,0 +1,212 @@
> +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/msm/dpu-sdm845.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Display DPU dt properties for SDM845 target
> +
> +maintainers:
> +  - Krishna Manikandan <mkrishn@codeaurora.org>
> +
> +description: |
> +  Device tree bindings for MSM Mobile Display Subsystem(MDSS) that encapsulates
> +  sub-blocks like DPU display controller, DSI and DP interfaces etc. Device tree
> +  bindings of MDSS and DPU are mentioned for SDM845 target.
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: qcom,sdm845-mdss
> +
> +  reg:
> +    maxItems: 1
> +
> +  reg-names:
> +    const: mdss
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: Display AHB clock from gcc
> +      - description: Display AXI clock
> +      - description: Display core clock
> +
> +  clock-names:
> +    items:
> +      - const: iface
> +      - const: bus
> +      - const: core
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  interrupt-controller: true
> +
> +  "#address-cells": true
> +
> +  "#size-cells": true
> +
> +  "#interrupt-cells":
> +    const: 1
> +
> +  iommus:
> +    items:
> +      - description: Phandle to apps_smmu node with SID mask for Hard-Fail port0
> +      - description: Phandle to apps_smmu node with SID mask for Hard-Fail port1
> +
> +  ranges: true
> +
> +patternProperties:
> +  "^display-controller@[0-9a-f]+$":
> +    type: object
> +    description: Node containing the properties of DPU.
> +
> +    properties:
> +      compatible:
> +        items:
> +          - const: qcom,sdm845-dpu
> +
> +      reg:
> +        items:
> +          - description: Address offset and size for mdp register set
> +          - description: Address offset and size for vbif register set
> +
> +      reg-names:
> +        items:
> +          - const: mdp
> +          - const: vbif
> +
> +      clocks:
> +        items:
> +          - description: Display ahb clock
> +          - description: Display axi clock
> +          - description: Display core clock
> +          - description: Display vsync clock
> +
> +      clock-names:
> +        items:
> +          - const: iface
> +          - const: bus
> +          - const: core
> +          - const: vsync
> +
> +      interrupts:
> +        maxItems: 1
> +
> +      power-domains:
> +        maxItems: 1
> +
> +      operating-points-v2: true

You have a blank line between all other properties, but not here.

> +      ports:
> +        $ref: /schemas/graph.yaml#/properties/ports
> +        description: |
> +          Contains the list of output ports from DPU device. These ports
> +          connect to interfaces that are external to the DPU hardware,
> +          such as DSI, DP etc. Each output port contains an endpoint that
> +          describes how it is connected to an external interface.
> +
> +        properties:
> +          port@0:
> +            $ref: /schemas/graph.yaml#/properties/port
> +            description: DPU_INTF1 (DSI1)
> +
> +          port@1:
> +            $ref: /schemas/graph.yaml#/properties/port
> +            description: DPU_INTF2 (DSI2)
> +
> +        required:
> +          - port@0
> +          - port@1

In what sense are both these required?

> +

Regards,
Bjorn

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings
  2021-05-21 16:00 ` [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings Bjorn Andersson
@ 2021-05-21 17:11   ` Bjorn Andersson
  2021-05-21 20:51   ` Stephen Boyd
  1 sibling, 0 replies; 19+ messages in thread
From: Bjorn Andersson @ 2021-05-21 17:11 UTC (permalink / raw)
  To: Krishna Manikandan
  Cc: dri-devel, linux-arm-msm, freedreno, devicetree, linux-kernel,
	kalyan_t, tanmay, abhinavk, robdclark, swboyd, vinod.koul,
	dianders, khsieh, robh+dt, sean, robh

On Fri 21 May 11:00 CDT 2021, Bjorn Andersson wrote:

> On Fri 21 May 05:27 CDT 2021, Krishna Manikandan wrote:
> > diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
> [..]
> > +      ports:
> > +        $ref: /schemas/graph.yaml#/properties/ports
> > +        description: |
> > +          Contains the list of output ports from DPU device. These ports
> > +          connect to interfaces that are external to the DPU hardware,
> > +          such as DSI, DP etc. Each output port contains an endpoint that
> > +          describes how it is connected to an external interface.
> > +
> > +        properties:
> > +          port@0:
> > +            $ref: /schemas/graph.yaml#/properties/port
> > +            description: DPU_INTF1 (DSI1)
> > +
> > +          port@2:
> > +            $ref: /schemas/graph.yaml#/properties/port
> > +            description: DPU_INTF0 (DP)
> 
> Why is port@0 INTF1 and why is port@2 INTF0? In the binding you're
> translating the two ports that are described are 0 and 1, representing
> INTF1 and INTF2, or DSI1 and DSI2, respectively.
> 
> Further more, I have a need for somehow describing the pairing of 4 DP
> INTFs (INTF 0, 3, 4 and 5) and how they are connected to the 3+1 DP+eDP
> controllers.
> 
> Downstream this seems to be handled by adding cell-index to the DP
> controllers and then matching that against the numbering in the driver's
> INTF array. But rather than adding cell-index to map this, can't we
> define that the port index is the INTF-number here?
> 
> 
> This would obviously break compatibility with existing DTBs, but we
> could start by doing it selectively for the new compatibles, fix up the
> existing dts files and then drop the selective application after 1 or 2
> LTS releases.
> 

In a chat with Rob I realized that my feedback here is unrelated to the
yaml conversion and any conclusions of this discussion should be a
separate patch anyways.

So with the two style issues below resolve you have my:

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

[..]
> > +examples:
[..]
> > +                   ports {
> > +                           #address-cells = <1>;
> > +                           #size-cells = <0>;
> > +
> > +                           port@0 {
> > +                                   reg = <0>;
> > +                                   dpu_intf1_out: endpoint {
> > +                                                  remote-endpoint = <&dsi0_in>;
> > +                                   };
> > +                           };
> > +
> > +                            port@2 {
> > +                                    reg = <2>;
> > +                                    dpu_intf0_out: endpoint {
> > +                                                   remote-endpoint = <&dp_in>;
> > +                                    };
> > +                            };
> 
> The indentation is inconsistent among the ports.
> 
> > +                   };
> > +         };
> > +    };
> > +...
> > diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml
[..]
> > +      operating-points-v2: true
> 
> You have a blank line between all other properties, but not here.
> 
> > +      ports:

Regards,
Bjorn

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 2/4] dt-bindings: msm: dsi: add yaml schemas for DSI bindings
  2021-05-21 10:27 ` [PATCH v17 2/4] dt-bindings: msm: dsi: add yaml schemas for DSI bindings Krishna Manikandan
@ 2021-05-21 17:14   ` Bjorn Andersson
  2021-05-21 18:37   ` Rob Herring
  2021-05-21 20:47   ` Stephen Boyd
  2 siblings, 0 replies; 19+ messages in thread
From: Bjorn Andersson @ 2021-05-21 17:14 UTC (permalink / raw)
  To: Krishna Manikandan
  Cc: dri-devel, linux-arm-msm, freedreno, devicetree, linux-kernel,
	kalyan_t, tanmay, abhinavk, robdclark, swboyd, vinod.koul,
	dianders, khsieh, robh+dt, sean, robh

On Fri 21 May 05:27 CDT 2021, Krishna Manikandan wrote:

> Add YAML schema for the device tree bindings for DSI
> 

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Regards,
Bjorn

> Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
> 
> Changes in v1:
>     - Separate dsi controller bindings to a separate patch (Stephen Boyd)
>     - Merge dsi-common-controller.yaml and dsi-controller-main.yaml to
>       a single file (Stephen Boyd)
>     - Drop supply entries and definitions from properties (Stephen Boyd)
>     - Modify phy-names property for dsi controller (Stephen Boyd)
>     - Remove boolean from description (Stephen Boyd)
>     - Drop pinctrl properties as they are standard entries (Stephen Boyd)
>     - Modify the description for ports property and keep the reference
>       to the generic binding where this is defined (Stephen Boyd)
>     - Add description to clock names (Stephen Boyd)
>     - Correct the indendation (Stephen Boyd)
>     - Drop the label for display dt nodes and correct the node
>       name (Stephen Boyd)
> 
> Changes in v2:
>     - Drop maxItems for clock (Stephen Boyd)
>     - Drop qcom,mdss-mdp-transfer-time-us as it is not used in upstream
>       dt file (Stephen Boyd)
>     - Keep child node directly under soc node (Stephen Boyd)
>     - Drop qcom,sync-dual-dsi as it is not used in upstream dt
> 
> Changes in v3:
>     - Add description for register property (Stephen Boyd)
> 
> Changes in v4:
>     - Add maxItems for phys property (Stephen Boyd)
>     - Add maxItems for reg property (Stephen Boyd)
>     - Add reference for data-lanes property (Stephen Boyd)
>     - Remove soc from example (Stephen Boyd)
> 
> Changes in v5:
>     - Modify title and description (Stephen Boyd)
>     - Add required properties for ports node (Stephen Boyd)
>     - Add data-lanes in the example (Stephen Boyd)
>     - Drop qcom,master-dsi property (Stephen Boyd)
> 
> Changes in v6:
>     - Add required properties for port@0, port@1 and corresponding
>       endpoints (Stephen Boyd)
>     - Add address-cells and size-cells for ports (Stephen Boyd)
>     - Use additionalProperties instead of unevaluatedProperties (Stephen Boyd)
> 
> Changes in v7:
>     - Add reference for ports and data-lanes (Rob Herring)
>     - Add maxItems and minItems for data-lanes (Rob Herring)
> 
> Changes in v8:
>     - Drop common properties and description from ports (Rob Herring)
>     - Add reference for endpoint (Rob Herring)
>     - Add correct reference for data-lanes (Rob Herring)
>     - Drop common properties from required list for ports (Rob Herring)
> ---
>  .../bindings/display/msm/dsi-controller-main.yaml  | 185 +++++++++++++++
>  .../devicetree/bindings/display/msm/dsi.txt        | 249 ---------------------
>  2 files changed, 185 insertions(+), 249 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
>  delete mode 100644 Documentation/devicetree/bindings/display/msm/dsi.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
> new file mode 100644
> index 0000000..df6a750
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
> @@ -0,0 +1,185 @@
> +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/msm/dsi-controller-main.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Display DSI controller
> +
> +maintainers:
> +  - Krishna Manikandan <mkrishn@codeaurora.org>
> +
> +allOf:
> +  - $ref: "../dsi-controller.yaml#"
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: qcom,mdss-dsi-ctrl
> +
> +  reg:
> +    maxItems: 1
> +
> +  reg-names:
> +    const: dsi_ctrl
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: Display byte clock
> +      - description: Display byte interface clock
> +      - description: Display pixel clock
> +      - description: Display escape clock
> +      - description: Display AHB clock
> +      - description: Display AXI clock
> +
> +  clock-names:
> +    items:
> +      - const: byte
> +      - const: byte_intf
> +      - const: pixel
> +      - const: core
> +      - const: iface
> +      - const: bus
> +
> +  phys:
> +    maxItems: 1
> +
> +  phy-names:
> +    const: dsi
> +
> +  "#address-cells": true
> +
> +  "#size-cells": true
> +
> +  syscon-sfpb:
> +    description: A phandle to mmss_sfpb syscon node (only for DSIv2).
> +    $ref: "/schemas/types.yaml#/definitions/phandle"
> +
> +  qcom,dual-dsi-mode:
> +    type: boolean
> +    description: |
> +      Indicates if the DSI controller is driving a panel which needs
> +      2 DSI links.
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  operating-points-v2: true
> +
> +  ports:
> +    $ref: "/schemas/graph.yaml#/properties/ports"
> +    description: |
> +      Contains DSI controller input and output ports as children, each
> +      containing one endpoint subnode.
> +
> +    properties:
> +      port@0:
> +        $ref: "/schemas/graph.yaml#/properties/port"
> +        description: |
> +          Input endpoints of the controller.
> +        properties:
> +          endpoint:
> +            $ref: /schemas/media/video-interfaces.yaml#
> +            properties:
> +              data-lanes:
> +                $ref: /schemas/types.yaml#/definitions/uint32-array
> +                maxItems: 4
> +                minItems: 4
> +                items:
> +                  enum: [ 0, 1, 2, 3 ]
> +
> +      port@1:
> +        $ref: "/schemas/graph.yaml#/properties/port"
> +        description: |
> +          Output endpoints of the controller.
> +        properties:
> +          endpoint:
> +            $ref: /schemas/media/video-interfaces.yaml#
> +            properties:
> +              data-lanes:
> +                $ref: /schemas/types.yaml#/definitions/uint32-array
> +                maxItems: 4
> +                minItems: 4
> +                items:
> +                  enum: [ 0, 1, 2, 3 ]
> +
> +    required:
> +      - port@0
> +      - port@1
> +
> +required:
> +  - compatible
> +  - reg
> +  - reg-names
> +  - interrupts
> +  - clocks
> +  - clock-names
> +  - phys
> +  - phy-names
> +  - power-domains
> +  - operating-points-v2
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +     #include <dt-bindings/interrupt-controller/arm-gic.h>
> +     #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
> +     #include <dt-bindings/clock/qcom,gcc-sdm845.h>
> +     #include <dt-bindings/power/qcom-rpmpd.h>
> +
> +     dsi@ae94000 {
> +           compatible = "qcom,mdss-dsi-ctrl";
> +           reg = <0x0ae94000 0x400>;
> +           reg-names = "dsi_ctrl";
> +
> +           #address-cells = <1>;
> +           #size-cells = <0>;
> +
> +           interrupt-parent = <&mdss>;
> +           interrupts = <4>;
> +
> +           clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK>,
> +                    <&dispcc DISP_CC_MDSS_BYTE0_INTF_CLK>,
> +                    <&dispcc DISP_CC_MDSS_PCLK0_CLK>,
> +                    <&dispcc DISP_CC_MDSS_ESC0_CLK>,
> +                    <&dispcc DISP_CC_MDSS_AHB_CLK>,
> +                    <&dispcc DISP_CC_MDSS_AXI_CLK>;
> +           clock-names = "byte",
> +                         "byte_intf",
> +                         "pixel",
> +                         "core",
> +                         "iface",
> +                         "bus";
> +
> +           phys = <&dsi0_phy>;
> +           phy-names = "dsi";
> +
> +           power-domains = <&rpmhpd SC7180_CX>;
> +           operating-points-v2 = <&dsi_opp_table>;
> +
> +           ports {
> +                  #address-cells = <1>;
> +                  #size-cells = <0>;
> +
> +                  port@0 {
> +                          reg = <0>;
> +                          dsi0_in: endpoint {
> +                                   remote-endpoint = <&dpu_intf1_out>;
> +                          };
> +                  };
> +
> +                  port@1 {
> +                          reg = <1>;
> +                          dsi0_out: endpoint {
> +                                   remote-endpoint = <&sn65dsi86_in>;
> +                                   data-lanes = <0 1 2 3>;
> +                          };
> +                  };
> +           };
> +     };
> +...
> diff --git a/Documentation/devicetree/bindings/display/msm/dsi.txt b/Documentation/devicetree/bindings/display/msm/dsi.txt
> deleted file mode 100644
> index b9a64d3..0000000
> --- a/Documentation/devicetree/bindings/display/msm/dsi.txt
> +++ /dev/null
> @@ -1,249 +0,0 @@
> -Qualcomm Technologies Inc. adreno/snapdragon DSI output
> -
> -DSI Controller:
> -Required properties:
> -- compatible:
> -  * "qcom,mdss-dsi-ctrl"
> -- reg: Physical base address and length of the registers of controller
> -- reg-names: The names of register regions. The following regions are required:
> -  * "dsi_ctrl"
> -- interrupts: The interrupt signal from the DSI block.
> -- power-domains: Should be <&mmcc MDSS_GDSC>.
> -- clocks: Phandles to device clocks.
> -- clock-names: the following clocks are required:
> -  * "mdp_core"
> -  * "iface"
> -  * "bus"
> -  * "core_mmss"
> -  * "byte"
> -  * "pixel"
> -  * "core"
> -  For DSIv2, we need an additional clock:
> -   * "src"
> -  For DSI6G v2.0 onwards, we need also need the clock:
> -   * "byte_intf"
> -- assigned-clocks: Parents of "byte" and "pixel" for the given platform.
> -- assigned-clock-parents: The Byte clock and Pixel clock PLL outputs provided
> -  by a DSI PHY block. See [1] for details on clock bindings.
> -- vdd-supply: phandle to vdd regulator device node
> -- vddio-supply: phandle to vdd-io regulator device node
> -- vdda-supply: phandle to vdda regulator device node
> -- phys: phandle to DSI PHY device node
> -- phy-names: the name of the corresponding PHY device
> -- syscon-sfpb: A phandle to mmss_sfpb syscon node (only for DSIv2)
> -- ports: Contains 2 DSI controller ports as child nodes. Each port contains
> -  an endpoint subnode as defined in [2] and [3].
> -
> -Optional properties:
> -- panel@0: Node of panel connected to this DSI controller.
> -  See files in [4] for each supported panel.
> -- qcom,dual-dsi-mode: Boolean value indicating if the DSI controller is
> -  driving a panel which needs 2 DSI links.
> -- qcom,master-dsi: Boolean value indicating if the DSI controller is driving
> -  the master link of the 2-DSI panel.
> -- qcom,sync-dual-dsi: Boolean value indicating if the DSI controller is
> -  driving a 2-DSI panel whose 2 links need receive command simultaneously.
> -- pinctrl-names: the pin control state names; should contain "default"
> -- pinctrl-0: the default pinctrl state (active)
> -- pinctrl-n: the "sleep" pinctrl state
> -- ports: contains DSI controller input and output ports as children, each
> -  containing one endpoint subnode.
> -
> -  DSI Endpoint properties:
> -  - remote-endpoint: For port@0, set to phandle of the connected panel/bridge's
> -    input endpoint. For port@1, set to the MDP interface output. See [2] for
> -    device graph info.
> -
> -  - data-lanes: this describes how the physical DSI data lanes are mapped
> -    to the logical lanes on the given platform. The value contained in
> -    index n describes what physical lane is mapped to the logical lane n
> -    (DATAn, where n lies between 0 and 3). The clock lane position is fixed
> -    and can't be changed. Hence, they aren't a part of the DT bindings. See
> -    [3] for more info on the data-lanes property.
> -
> -    For example:
> -
> -    data-lanes = <3 0 1 2>;
> -
> -    The above mapping describes that the logical data lane DATA0 is mapped to
> -    the physical data lane DATA3, logical DATA1 to physical DATA0, logic DATA2
> -    to phys DATA1 and logic DATA3 to phys DATA2.
> -
> -    There are only a limited number of physical to logical mappings possible:
> -    <0 1 2 3>
> -    <1 2 3 0>
> -    <2 3 0 1>
> -    <3 0 1 2>
> -    <0 3 2 1>
> -    <1 0 3 2>
> -    <2 1 0 3>
> -    <3 2 1 0>
> -
> -DSI PHY:
> -Required properties:
> -- compatible: Could be the following
> -  * "qcom,dsi-phy-28nm-hpm"
> -  * "qcom,dsi-phy-28nm-lp"
> -  * "qcom,dsi-phy-20nm"
> -  * "qcom,dsi-phy-28nm-8960"
> -  * "qcom,dsi-phy-14nm"
> -  * "qcom,dsi-phy-14nm-660"
> -  * "qcom,dsi-phy-10nm"
> -  * "qcom,dsi-phy-10nm-8998"
> -  * "qcom,dsi-phy-7nm"
> -  * "qcom,dsi-phy-7nm-8150"
> -- reg: Physical base address and length of the registers of PLL, PHY. Some
> -  revisions require the PHY regulator base address, whereas others require the
> -  PHY lane base address. See below for each PHY revision.
> -- reg-names: The names of register regions. The following regions are required:
> -  For DSI 28nm HPM/LP/8960 PHYs and 20nm PHY:
> -  * "dsi_pll"
> -  * "dsi_phy"
> -  * "dsi_phy_regulator"
> -  For DSI 14nm, 10nm and 7nm PHYs:
> -  * "dsi_pll"
> -  * "dsi_phy"
> -  * "dsi_phy_lane"
> -- clock-cells: Must be 1. The DSI PHY block acts as a clock provider, creating
> -  2 clocks: A byte clock (index 0), and a pixel clock (index 1).
> -- power-domains: Should be <&mmcc MDSS_GDSC>.
> -- clocks: Phandles to device clocks. See [1] for details on clock bindings.
> -- clock-names: the following clocks are required:
> -  * "iface"
> -  * "ref" (only required for new DTS files/entries)
> -  For 28nm HPM/LP, 28nm 8960 PHYs:
> -- vddio-supply: phandle to vdd-io regulator device node
> -  For 20nm PHY:
> -- vddio-supply: phandle to vdd-io regulator device node
> -- vcca-supply: phandle to vcca regulator device node
> -  For 14nm PHY:
> -- vcca-supply: phandle to vcca regulator device node
> -  For 10nm and 7nm PHY:
> -- vdds-supply: phandle to vdds regulator device node
> -
> -Optional properties:
> -- qcom,dsi-phy-regulator-ldo-mode: Boolean value indicating if the LDO mode PHY
> -  regulator is wanted.
> -- qcom,mdss-mdp-transfer-time-us:	Specifies the dsi transfer time for command mode
> -					panels in microseconds. Driver uses this number to adjust
> -					the clock rate according to the expected transfer time.
> -					Increasing this value would slow down the mdp processing
> -					and can result in slower performance.
> -					Decreasing this value can speed up the mdp processing,
> -					but this can also impact power consumption.
> -					As a rule this time should not be higher than the time
> -					that would be expected with the processing at the
> -					dsi link rate since anyways this would be the maximum
> -					transfer time that could be achieved.
> -					If ping pong split is enabled, this time should not be higher
> -					than two times the dsi link rate time.
> -					If the property is not specified, then the default value is 14000 us.
> -
> -[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
> -[2] Documentation/devicetree/bindings/graph.txt
> -[3] Documentation/devicetree/bindings/media/video-interfaces.txt
> -[4] Documentation/devicetree/bindings/display/panel/
> -
> -Example:
> -	dsi0: dsi@fd922800 {
> -		compatible = "qcom,mdss-dsi-ctrl";
> -		qcom,dsi-host-index = <0>;
> -		interrupt-parent = <&mdp>;
> -		interrupts = <4 0>;
> -		reg-names = "dsi_ctrl";
> -		reg = <0xfd922800 0x200>;
> -		power-domains = <&mmcc MDSS_GDSC>;
> -		clock-names =
> -			"bus",
> -			"byte",
> -			"core",
> -			"core_mmss",
> -			"iface",
> -			"mdp_core",
> -			"pixel";
> -		clocks =
> -			<&mmcc MDSS_AXI_CLK>,
> -			<&mmcc MDSS_BYTE0_CLK>,
> -			<&mmcc MDSS_ESC0_CLK>,
> -			<&mmcc MMSS_MISC_AHB_CLK>,
> -			<&mmcc MDSS_AHB_CLK>,
> -			<&mmcc MDSS_MDP_CLK>,
> -			<&mmcc MDSS_PCLK0_CLK>;
> -
> -		assigned-clocks =
> -				 <&mmcc BYTE0_CLK_SRC>,
> -				 <&mmcc PCLK0_CLK_SRC>;
> -		assigned-clock-parents =
> -				 <&dsi_phy0 0>,
> -				 <&dsi_phy0 1>;
> -
> -		vdda-supply = <&pma8084_l2>;
> -		vdd-supply = <&pma8084_l22>;
> -		vddio-supply = <&pma8084_l12>;
> -
> -		phys = <&dsi_phy0>;
> -		phy-names ="dsi-phy";
> -
> -		qcom,dual-dsi-mode;
> -		qcom,master-dsi;
> -		qcom,sync-dual-dsi;
> -
> -		qcom,mdss-mdp-transfer-time-us = <12000>;
> -
> -		pinctrl-names = "default", "sleep";
> -		pinctrl-0 = <&dsi_active>;
> -		pinctrl-1 = <&dsi_suspend>;
> -
> -		ports {
> -			#address-cells = <1>;
> -			#size-cells = <0>;
> -
> -			port@0 {
> -				reg = <0>;
> -				dsi0_in: endpoint {
> -					remote-endpoint = <&mdp_intf1_out>;
> -				};
> -			};
> -
> -			port@1 {
> -				reg = <1>;
> -				dsi0_out: endpoint {
> -					remote-endpoint = <&panel_in>;
> -					data-lanes = <0 1 2 3>;
> -				};
> -			};
> -		};
> -
> -		panel: panel@0 {
> -			compatible = "sharp,lq101r1sx01";
> -			reg = <0>;
> -			link2 = <&secondary>;
> -
> -			power-supply = <...>;
> -			backlight = <...>;
> -
> -			port {
> -				panel_in: endpoint {
> -					remote-endpoint = <&dsi0_out>;
> -				};
> -			};
> -		};
> -	};
> -
> -	dsi_phy0: dsi-phy@fd922a00 {
> -		compatible = "qcom,dsi-phy-28nm-hpm";
> -		qcom,dsi-phy-index = <0>;
> -		reg-names =
> -			"dsi_pll",
> -			"dsi_phy",
> -			"dsi_phy_regulator";
> -		reg =   <0xfd922a00 0xd4>,
> -			<0xfd922b00 0x2b0>,
> -			<0xfd922d80 0x7b>;
> -		clock-names = "iface";
> -		clocks = <&mmcc MDSS_AHB_CLK>;
> -		#clock-cells = <1>;
> -		vddio-supply = <&pma8084_l12>;
> -
> -		qcom,dsi-phy-regulator-ldo-mode;
> -	};
> -- 
> 2.7.4
> 

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 3/4] dt-bindings: msm: dsi: add yaml schemas for DSI PHY bindings
  2021-05-21 10:27 ` [PATCH v17 3/4] dt-bindings: msm: dsi: add yaml schemas for DSI PHY bindings Krishna Manikandan
@ 2021-05-21 17:18   ` Bjorn Andersson
  2021-05-21 18:29   ` Rob Herring
  2021-05-21 20:47   ` Stephen Boyd
  2 siblings, 0 replies; 19+ messages in thread
From: Bjorn Andersson @ 2021-05-21 17:18 UTC (permalink / raw)
  To: Krishna Manikandan
  Cc: dri-devel, linux-arm-msm, freedreno, devicetree, linux-kernel,
	kalyan_t, tanmay, abhinavk, robdclark, swboyd, vinod.koul,
	dianders, khsieh, robh+dt, sean, robh

On Fri 21 May 05:27 CDT 2021, Krishna Manikandan wrote:

> Add YAML schema for the device tree bindings for DSI PHY.
> 
> Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
> 
> Changes in v1:
>    - Merge dsi-phy.yaml and dsi-phy-10nm.yaml (Stephen Boyd)
>    - Remove qcom,dsi-phy-regulator-ldo-mode (Stephen Boyd)
>    - Add clock cells properly (Stephen Boyd)
>    - Remove unnecessary decription from clock names (Stephen Boyd)
>    - Add pin names for the supply entries for 10nm phy which is
>      used in sc7180 and sdm845 (Stephen Boyd)
>    - Remove unused header files from examples (Stephen Boyd)
>    - Drop labels for display nodes and correct node name (Stephen Boyd)
> 
> Changes in v2:
>    - Drop maxItems for clock (Stephen Boyd)
>    - Add vdds supply pin information for sdm845 (Stephen Boyd)
>    - Add examples for 14nm, 20nm and 28nm phy yaml files (Stephen Boyd)
>    - Keep child nodes directly under soc node (Stephen Boyd)
> 
> Changes in v3:
>    - Use a separate yaml file to describe the common properties
>      for all the dsi phy versions (Stephen Boyd)
>    - Remove soc from examples (Stephen Boyd)
>    - Add description for register property
> 
> Changes in v4:
>    - Modify the title for all the phy versions (Stephen Boyd)
>    - Drop description for all the phy versions (Stephen Boyd)
>    - Modify the description for register property (Stephen Boyd)
> 
> Changes in v5:
>    - Remove unused properties from common dsi phy file
>    - Add clock-cells and phy-cells to required property
>      list (Stephen Boyd)
> 
> Changes in v6:
>    - Add proper compatible string in example
> ---
>  .../bindings/display/msm/dsi-phy-10nm.yaml         | 68 +++++++++++++++++++++
>  .../bindings/display/msm/dsi-phy-14nm.yaml         | 66 ++++++++++++++++++++
>  .../bindings/display/msm/dsi-phy-20nm.yaml         | 71 ++++++++++++++++++++++
>  .../bindings/display/msm/dsi-phy-28nm.yaml         | 68 +++++++++++++++++++++
>  .../bindings/display/msm/dsi-phy-common.yaml       | 40 ++++++++++++
>  5 files changed, 313 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-20nm.yaml
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-28nm.yaml
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-common.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
> new file mode 100644
> index 0000000..4a26bef
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
> @@ -0,0 +1,68 @@
> +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/msm/dsi-phy-10nm.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Display DSI 10nm PHY
> +
> +maintainers:
> +  - Krishna Manikandan <mkrishn@codeaurora.org>
> +
> +allOf:
> +  - $ref: dsi-phy-common.yaml#
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - const: qcom,dsi-phy-10nm
> +      - const: qcom,dsi-phy-10nm-8998
> +
> +  reg:
> +    items:
> +      - description: dsi phy register set
> +      - description: dsi phy lane register set
> +      - description: dsi pll register set
> +
> +  reg-names:
> +    items:
> +      - const: dsi_phy
> +      - const: dsi_phy_lane
> +      - const: dsi_pll
> +
> +  vdds-supply:
> +    description: |
> +      Connected to DSI0_MIPI_DSI_PLL_VDDA0P9 pin for sc7180 target and
> +      connected to VDDA_MIPI_DSI_0_PLL_0P9 pin for sdm845 target

"Reference to the 0.9V supply for the PLL." would have been sufficient.

But overall I think the patch looks good.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Regards,
Bjorn

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 4/4] dt-bindings: msm/dp: Add bindings of MSM DisplayPort controller
  2021-05-21 10:27 ` [PATCH v17 4/4] dt-bindings: msm/dp: Add bindings of MSM DisplayPort controller Krishna Manikandan
@ 2021-05-21 17:19   ` Bjorn Andersson
  2021-05-21 18:37   ` Rob Herring
  2021-05-21 20:46   ` Stephen Boyd
  2 siblings, 0 replies; 19+ messages in thread
From: Bjorn Andersson @ 2021-05-21 17:19 UTC (permalink / raw)
  To: Krishna Manikandan
  Cc: dri-devel, linux-arm-msm, freedreno, devicetree, linux-kernel,
	kalyan_t, tanmay, abhinavk, robdclark, swboyd, vinod.koul,
	dianders, khsieh, robh+dt, sean, robh, Chandan Uddaraju,
	Vara Reddy

On Fri 21 May 05:27 CDT 2021, Krishna Manikandan wrote:

> Add bindings for Snapdragon DisplayPort controller driver.
> 

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>

Regards,
Bjorn

> Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
> Signed-off-by: Vara Reddy <varar@codeaurora.org>
> Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
> Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
> Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
> 
> Changes in V2:
> -Provide details about sel-gpio
> 
> Changes in V4:
> -Provide details about max dp lanes
> -Change the commit text
> 
> Changes in V5:
> -moved dp.txt to yaml file
> 
> Changes in v6:
> - Squash all AUX LUT properties into one pattern Property
> - Make aux-cfg[0-9]-settings properties optional
> - Remove PLL/PHY bindings from DP controller dts
> - Add DP clocks description
> - Remove _clk suffix from clock names
> - Rename pixel clock to stream_pixel
> - Remove redundant bindings (GPIO, PHY, HDCP clock, etc..)
> - Fix indentation
> - Add Display Port as interface of DPU in DPU bindings
>   and add port mapping accordingly.
> 
> Chages in v7:
> - Add dp-controller.yaml file common between multiple SOC
> - Rename dp-sc7180.yaml to dp-controller-sc7180.yaml
> - change compatible string and add SOC name to it.
> - Remove Root clock generator for pixel clock
> - Add assigned-clocks and assigned-clock-parents bindings
> - Remove redundant properties, descriptions and blank lines
> - Add DP port in DPU bindings
> - Update depends-on tag in commit message and rebase change accordingly
> 
> Changes in v8:
> - Add MDSS AHB clock in bindings
> 
> Changes in v9:
> - Remove redundant reg-name property
> - Change assigned-clocks and assigned-clocks-parents counts to 2
> - Use IRQ flags in example dts
> 
> Changes in v10:
> - Change title of this patch as it does not contain PLL bindings anymore
> - Remove redundant properties
> - Remove use of IRQ flag
> - Fix ports property
> 
> Changes in v11:
> - add ports required of both #address-cells and  #size-cells
> - add required operating-points-v2
> - add required #sound-dai-cells
> - add required power-domains
> - update maintainer list
> 
> Changes in v12:
> - remove soc node from examples (Stephen Boyd)
> - split dpu-sc7180.yaml changes to separate patch (Stephen Boyd)
> 
> Changes in v13:
> - add assigned-clocks
> - add assigned-clock-parents
> 
> Changes in v14:
> - add reference for ports (Rob Herring)
> 
> Changes in v15:
> - drop common properties from ports (Rob Herring)
> ---
>  .../bindings/display/msm/dp-controller.yaml        | 146 +++++++++++++++++++++
>  1 file changed, 146 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> new file mode 100644
> index 0000000..64d8d9e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> @@ -0,0 +1,146 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/msm/dp-controller.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MSM Display Port Controller
> +
> +maintainers:
> +  - Kuogee Hsieh <khsieh@codeaurora.org>
> +
> +description: |
> +  Device tree bindings for DisplayPort host controller for MSM targets
> +  that are compatible with VESA DisplayPort interface specification.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - qcom,sc7180-dp
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    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
> +
> +  clock-names:
> +    items:
> +      - const: core_iface
> +      - const: core_aux
> +      - const: ctrl_link
> +      - const: ctrl_link_iface
> +      - const: stream_pixel
> +
> +  assigned-clocks:
> +    items:
> +      - description: link clock source
> +      - description: pixel clock source
> +
> +  assigned-clock-parents:
> +    items:
> +      - description: phy 0 parent
> +      - description: phy 1 parent
> +
> +  phys:
> +    maxItems: 1
> +
> +  phy-names:
> +    items:
> +      - const: dp
> +
> +  operating-points-v2:
> +    maxItems: 1
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  "#sound-dai-cells":
> +    const: 0
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +    properties:
> +      port@0:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description: Input endpoint of the controller
> +
> +      port@1:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description: Output endpoint of the controller
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - clock-names
> +  - phys
> +  - phy-names
> +  - "#sound-dai-cells"
> +  - power-domains
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
> +    #include <dt-bindings/power/qcom-aoss-qmp.h>
> +    #include <dt-bindings/power/qcom-rpmpd.h>
> +
> +    displayport-controller@ae90000 {
> +        compatible = "qcom,sc7180-dp";
> +        reg = <0xae90000 0x1400>;
> +        interrupt-parent = <&mdss>;
> +        interrupts = <12>;
> +        clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
> +                 <&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>;
> +        clock-names = "core_iface", "core_aux",
> +                      "ctrl_link",
> +                      "ctrl_link_iface", "stream_pixel";
> +
> +        assigned-clocks = <&dispcc DISP_CC_MDSS_DP_LINK_CLK_SRC>,
> +                          <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK_SRC>;
> +
> +        assigned-clock-parents = <&dp_phy 0>, <&dp_phy 1>;
> +
> +        phys = <&dp_phy>;
> +        phy-names = "dp";
> +
> +        #sound-dai-cells = <0>;
> +
> +        power-domains = <&rpmhpd SC7180_CX>;
> +
> +        ports {
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +
> +            port@0 {
> +                reg = <0>;
> +                endpoint {
> +                    remote-endpoint = <&dpu_intf0_out>;
> +                };
> +            };
> +
> +            port@1 {
> +                reg = <1>;
> +                endpoint {
> +                    remote-endpoint = <&typec>;
> +                };
> +            };
> +        };
> +    };
> +...
> -- 
> 2.7.4
> 

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings
  2021-05-21 10:27 [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings Krishna Manikandan
                   ` (3 preceding siblings ...)
  2021-05-21 16:00 ` [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings Bjorn Andersson
@ 2021-05-21 18:29 ` Rob Herring
  2021-05-21 20:47 ` Stephen Boyd
  5 siblings, 0 replies; 19+ messages in thread
From: Rob Herring @ 2021-05-21 18:29 UTC (permalink / raw)
  To: Krishna Manikandan
  Cc: dri-devel, devicetree, swboyd, khsieh, linux-kernel, freedreno,
	dianders, tanmay, robh+dt, kalyan_t, sean, linux-arm-msm,
	abhinavk, vinod.koul, bjorn.andersson

On Fri, 21 May 2021 15:57:21 +0530, Krishna Manikandan wrote:
> MSM Mobile Display Subsystem (MDSS) encapsulates sub-blocks
> like DPU display controller, DSI etc. Add YAML schema
> for DPU device tree bindings.
> 
> Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
> 
> Changes in v2:
>     - Changed dpu to DPU (Sam Ravnborg)
>     - Fixed indentation issues (Sam Ravnborg)
>     - Added empty line between different properties (Sam Ravnborg)
>     - Replaced reference txt files with  their corresponding
>       yaml files (Sam Ravnborg)
>     - Modified the file to use "|" only when it is
>       necessary (Sam Ravnborg)
> 
> Changes in v3:
>     - Corrected the license used (Rob Herring)
>     - Added maxItems for properties (Rob Herring)
>     - Dropped generic descriptions (Rob Herring)
>     - Added ranges property (Rob Herring)
>     - Corrected the indendation (Rob Herring)
>     - Added additionalProperties (Rob Herring)
>     - Split dsi file into two, one for dsi controller
>       and another one for dsi phy per target (Rob Herring)
>     - Corrected description for pinctrl-names (Rob Herring)
>     - Corrected the examples used in yaml file (Rob Herring)
>     - Delete dsi.txt and dpu.txt (Rob Herring)
> 
> Changes in v4:
>     - Move schema up by one level (Rob Herring)
>     - Add patternProperties for mdp node (Rob Herring)
>     - Corrected description of some properties (Rob Herring)
> 
> Changes in v5:
>     - Correct the indentation (Rob Herring)
>     - Remove unnecessary description from properties (Rob Herring)
>     - Correct the number of interconnect entries (Rob Herring)
>     - Add interconnect names for sc7180 (Rob Herring)
>     - Add description for ports (Rob Herring)
>     - Remove common properties (Rob Herring)
>     - Add unevalutatedProperties (Rob Herring)
>     - Reference existing dsi controller yaml in the common
>       dsi controller file (Rob Herring)
>     - Correct the description of clock names to include only the
>       clocks that are required (Rob Herring)
>     - Remove properties which are already covered under the common
>       binding (Rob Herring)
>     - Add dsi phy supply nodes which are required for sc7180 and
>       sdm845 targets (Rob Herring)
>     - Add type ref for syscon-sfpb (Rob Herring)
> 
> Changes in v6:
>     - Fixed errors during dt_binding_check (Rob Herring)
>     - Add maxItems for phys and phys-names (Rob Herring)
>     - Use unevaluatedProperties wherever required (Rob Herring)
>     - Removed interrupt controller from required properties for
>       dsi controller (Rob Herring)
>     - Add constraints for dsi-phy reg-names based on the compatible
>       phy version (Rob Herring)
>     - Add constraints for dsi-phy supply nodes based on the
>       compatible phy version (Rob Herring)
> 
> Changes in v7:
>     - Add default value for qcom,mdss-mdp-transfer-time-us (Rob Herring)
>     - Modify the schema for data-lanes (Rob Herring)
>     - Split the phy schema into separate schemas based on
>       the phy version (Rob Herring)
> 
> Changes in v8:
>     - Resolve merge conflicts with latest dsi.txt file
>     - Include dp yaml change also in the same series
> 
> Changes in v9:
>     - Combine target specific dsi controller yaml files
>       to a single yaml file (Rob Herring)
>     - Combine target specific dsi phy yaml files into a
>       single yaml file (Rob Herring)
>     - Use unevaluatedProperties and additionalProperties
>       wherever required
>     - Remove duplicate properties from common yaml files
> 
> Changes in v10:
>     - Split the patch into separate patches for DPU, DSI and
>       PHY (Stephen Boyd)
>     - Drop unnecessary fullstop (Stephen Boyd)
>     - Add newline whereever required (Stephen Boyd)
>     - Add description for clock used (Stephen Boyd)
>     - Modify the description for interconnect entries  (Stephen Boyd)
>     - Drop assigned clock entries as it a generic property (Stephen Boyd)
>     - Correct the definition for interrupts (Stephen Boyd)
>     - Drop clock names from required properties (Stephen Boyd)
>     - Drop labels for display nodes from example (Stephen Boyd)
>     - Drop flags from interrupts entries (Stephen Boyd)
> 
> Changes in v11:
>     - Drop maxItems for clocks (Stephen Boyd)
> 
> Changes in v12:
>     - Add description for register property (Stephen Boyd)
>     - Add maxItems for interrupts (Stephen Boyd)
>     - Add description for iommus property (Stephen Boyd)
>     - Add description for interconnects (Stephen Boyd)
>     - Change display node name to display_controller (Stephen Boyd)
> 
> Changes in v13:
>     - Add maxItems for reg property (Stephen Boyd)
>     - Add ranges property in example (Stephen Boyd)
>     - Modify description for iommus property (Stephen Boyd)
>     - Add Dp bindings for ports in the same patch (Stephen Boyd)
>     - Remove soc from examples and change address and size cells
>       accordingly (Stephen Boyd)
>     - Add reference for ports
> 
> Changes in v14:
>     - Modify title for SC7180 and SDM845 yaml files (Stephen Boyd)
>     - Add required list for display-controller node (Stephen Boyd)
> 
> Changes in v16:
>     - Add reference for port (Rob Herring)
>     - Make additionalProperties as false (Rob Herring)
> ---
>  .../bindings/display/msm/dpu-sc7180.yaml           | 228 +++++++++++++++++++++
>  .../bindings/display/msm/dpu-sdm845.yaml           | 212 +++++++++++++++++++
>  .../devicetree/bindings/display/msm/dpu.txt        | 141 -------------
>  3 files changed, 440 insertions(+), 141 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dpu-sdm845.yaml
>  delete mode 100644 Documentation/devicetree/bindings/display/msm/dpu.txt
> 


Please add Acked-by/Reviewed-by tags when posting new versions. However,
there's no need to repost patches *only* to add the tags. The upstream
maintainer will do that for acks received on the version they apply.

If a tag was not added on purpose, please state why and what changed.


^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 3/4] dt-bindings: msm: dsi: add yaml schemas for DSI PHY bindings
  2021-05-21 10:27 ` [PATCH v17 3/4] dt-bindings: msm: dsi: add yaml schemas for DSI PHY bindings Krishna Manikandan
  2021-05-21 17:18   ` Bjorn Andersson
@ 2021-05-21 18:29   ` Rob Herring
  2021-05-21 20:47   ` Stephen Boyd
  2 siblings, 0 replies; 19+ messages in thread
From: Rob Herring @ 2021-05-21 18:29 UTC (permalink / raw)
  To: Krishna Manikandan
  Cc: khsieh, swboyd, vinod.koul, tanmay, abhinavk, devicetree,
	dri-devel, linux-arm-msm, robh+dt, sean, kalyan_t,
	bjorn.andersson, dianders, freedreno, linux-kernel

On Fri, 21 May 2021 15:57:23 +0530, Krishna Manikandan wrote:
> Add YAML schema for the device tree bindings for DSI PHY.
> 
> Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
> 
> Changes in v1:
>    - Merge dsi-phy.yaml and dsi-phy-10nm.yaml (Stephen Boyd)
>    - Remove qcom,dsi-phy-regulator-ldo-mode (Stephen Boyd)
>    - Add clock cells properly (Stephen Boyd)
>    - Remove unnecessary decription from clock names (Stephen Boyd)
>    - Add pin names for the supply entries for 10nm phy which is
>      used in sc7180 and sdm845 (Stephen Boyd)
>    - Remove unused header files from examples (Stephen Boyd)
>    - Drop labels for display nodes and correct node name (Stephen Boyd)
> 
> Changes in v2:
>    - Drop maxItems for clock (Stephen Boyd)
>    - Add vdds supply pin information for sdm845 (Stephen Boyd)
>    - Add examples for 14nm, 20nm and 28nm phy yaml files (Stephen Boyd)
>    - Keep child nodes directly under soc node (Stephen Boyd)
> 
> Changes in v3:
>    - Use a separate yaml file to describe the common properties
>      for all the dsi phy versions (Stephen Boyd)
>    - Remove soc from examples (Stephen Boyd)
>    - Add description for register property
> 
> Changes in v4:
>    - Modify the title for all the phy versions (Stephen Boyd)
>    - Drop description for all the phy versions (Stephen Boyd)
>    - Modify the description for register property (Stephen Boyd)
> 
> Changes in v5:
>    - Remove unused properties from common dsi phy file
>    - Add clock-cells and phy-cells to required property
>      list (Stephen Boyd)
> 
> Changes in v6:
>    - Add proper compatible string in example
> ---
>  .../bindings/display/msm/dsi-phy-10nm.yaml         | 68 +++++++++++++++++++++
>  .../bindings/display/msm/dsi-phy-14nm.yaml         | 66 ++++++++++++++++++++
>  .../bindings/display/msm/dsi-phy-20nm.yaml         | 71 ++++++++++++++++++++++
>  .../bindings/display/msm/dsi-phy-28nm.yaml         | 68 +++++++++++++++++++++
>  .../bindings/display/msm/dsi-phy-common.yaml       | 40 ++++++++++++
>  5 files changed, 313 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-10nm.yaml
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-14nm.yaml
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-20nm.yaml
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-28nm.yaml
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-phy-common.yaml
> 


Please add Acked-by/Reviewed-by tags when posting new versions. However,
there's no need to repost patches *only* to add the tags. The upstream
maintainer will do that for acks received on the version they apply.

If a tag was not added on purpose, please state why and what changed.


^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 2/4] dt-bindings: msm: dsi: add yaml schemas for DSI bindings
  2021-05-21 10:27 ` [PATCH v17 2/4] dt-bindings: msm: dsi: add yaml schemas for DSI bindings Krishna Manikandan
  2021-05-21 17:14   ` Bjorn Andersson
@ 2021-05-21 18:37   ` Rob Herring
  2021-05-21 20:47   ` Stephen Boyd
  2 siblings, 0 replies; 19+ messages in thread
From: Rob Herring @ 2021-05-21 18:37 UTC (permalink / raw)
  To: Krishna Manikandan
  Cc: dri-devel, linux-arm-msm, freedreno, devicetree, linux-kernel,
	kalyan_t, tanmay, abhinavk, robdclark, swboyd, bjorn.andersson,
	vinod.koul, dianders, khsieh, sean

On Fri, May 21, 2021 at 03:57:22PM +0530, Krishna Manikandan wrote:
> Add YAML schema for the device tree bindings for DSI
> 
> Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
> 
> Changes in v1:
>     - Separate dsi controller bindings to a separate patch (Stephen Boyd)
>     - Merge dsi-common-controller.yaml and dsi-controller-main.yaml to
>       a single file (Stephen Boyd)
>     - Drop supply entries and definitions from properties (Stephen Boyd)
>     - Modify phy-names property for dsi controller (Stephen Boyd)
>     - Remove boolean from description (Stephen Boyd)
>     - Drop pinctrl properties as they are standard entries (Stephen Boyd)
>     - Modify the description for ports property and keep the reference
>       to the generic binding where this is defined (Stephen Boyd)
>     - Add description to clock names (Stephen Boyd)
>     - Correct the indendation (Stephen Boyd)
>     - Drop the label for display dt nodes and correct the node
>       name (Stephen Boyd)
> 
> Changes in v2:
>     - Drop maxItems for clock (Stephen Boyd)
>     - Drop qcom,mdss-mdp-transfer-time-us as it is not used in upstream
>       dt file (Stephen Boyd)
>     - Keep child node directly under soc node (Stephen Boyd)
>     - Drop qcom,sync-dual-dsi as it is not used in upstream dt
> 
> Changes in v3:
>     - Add description for register property (Stephen Boyd)
> 
> Changes in v4:
>     - Add maxItems for phys property (Stephen Boyd)
>     - Add maxItems for reg property (Stephen Boyd)
>     - Add reference for data-lanes property (Stephen Boyd)
>     - Remove soc from example (Stephen Boyd)
> 
> Changes in v5:
>     - Modify title and description (Stephen Boyd)
>     - Add required properties for ports node (Stephen Boyd)
>     - Add data-lanes in the example (Stephen Boyd)
>     - Drop qcom,master-dsi property (Stephen Boyd)
> 
> Changes in v6:
>     - Add required properties for port@0, port@1 and corresponding
>       endpoints (Stephen Boyd)
>     - Add address-cells and size-cells for ports (Stephen Boyd)
>     - Use additionalProperties instead of unevaluatedProperties (Stephen Boyd)
> 
> Changes in v7:
>     - Add reference for ports and data-lanes (Rob Herring)
>     - Add maxItems and minItems for data-lanes (Rob Herring)
> 
> Changes in v8:
>     - Drop common properties and description from ports (Rob Herring)
>     - Add reference for endpoint (Rob Herring)
>     - Add correct reference for data-lanes (Rob Herring)
>     - Drop common properties from required list for ports (Rob Herring)

I think I said it before, but move the changelogs in this series after 
the '---' so they are dropped when committed. That's not the usual DRM 
way, but this case has particularly useless revision history to capture.

> ---
>  .../bindings/display/msm/dsi-controller-main.yaml  | 185 +++++++++++++++
>  .../devicetree/bindings/display/msm/dsi.txt        | 249 ---------------------
>  2 files changed, 185 insertions(+), 249 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
>  delete mode 100644 Documentation/devicetree/bindings/display/msm/dsi.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
> new file mode 100644
> index 0000000..df6a750
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
> @@ -0,0 +1,185 @@
> +# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/msm/dsi-controller-main.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Display DSI controller
> +
> +maintainers:
> +  - Krishna Manikandan <mkrishn@codeaurora.org>
> +
> +allOf:
> +  - $ref: "../dsi-controller.yaml#"
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: qcom,mdss-dsi-ctrl
> +
> +  reg:
> +    maxItems: 1
> +
> +  reg-names:
> +    const: dsi_ctrl
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: Display byte clock
> +      - description: Display byte interface clock
> +      - description: Display pixel clock
> +      - description: Display escape clock
> +      - description: Display AHB clock
> +      - description: Display AXI clock
> +
> +  clock-names:
> +    items:
> +      - const: byte
> +      - const: byte_intf
> +      - const: pixel
> +      - const: core
> +      - const: iface
> +      - const: bus
> +
> +  phys:
> +    maxItems: 1
> +
> +  phy-names:
> +    const: dsi
> +
> +  "#address-cells": true
> +
> +  "#size-cells": true
> +
> +  syscon-sfpb:
> +    description: A phandle to mmss_sfpb syscon node (only for DSIv2).
> +    $ref: "/schemas/types.yaml#/definitions/phandle"
> +
> +  qcom,dual-dsi-mode:
> +    type: boolean
> +    description: |
> +      Indicates if the DSI controller is driving a panel which needs
> +      2 DSI links.
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  operating-points-v2: true
> +
> +  ports:
> +    $ref: "/schemas/graph.yaml#/properties/ports"
> +    description: |
> +      Contains DSI controller input and output ports as children, each
> +      containing one endpoint subnode.
> +
> +    properties:
> +      port@0:
> +        $ref: "/schemas/graph.yaml#/properties/port"
> +        description: |
> +          Input endpoints of the controller.
> +        properties:
> +          endpoint:
> +            $ref: /schemas/media/video-interfaces.yaml#

               unevaluatedProperties: false

> +            properties:
> +              data-lanes:
> +                $ref: /schemas/types.yaml#/definitions/uint32-array

This already has a type in video-interfaces.yaml, so drop.

> +                maxItems: 4
> +                minItems: 4
> +                items:
> +                  enum: [ 0, 1, 2, 3 ]
> +
> +      port@1:
> +        $ref: "/schemas/graph.yaml#/properties/port"
> +        description: |
> +          Output endpoints of the controller.
> +        properties:
> +          endpoint:
> +            $ref: /schemas/media/video-interfaces.yaml#

               unevaluatedProperties: false

> +            properties:
> +              data-lanes:
> +                $ref: /schemas/types.yaml#/definitions/uint32-array

And here.

> +                maxItems: 4
> +                minItems: 4
> +                items:
> +                  enum: [ 0, 1, 2, 3 ]
> +
> +    required:
> +      - port@0
> +      - port@1
> +
> +required:
> +  - compatible
> +  - reg
> +  - reg-names
> +  - interrupts
> +  - clocks
> +  - clock-names
> +  - phys
> +  - phy-names
> +  - power-domains
> +  - operating-points-v2
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +     #include <dt-bindings/interrupt-controller/arm-gic.h>
> +     #include <dt-bindings/clock/qcom,dispcc-sdm845.h>
> +     #include <dt-bindings/clock/qcom,gcc-sdm845.h>
> +     #include <dt-bindings/power/qcom-rpmpd.h>
> +
> +     dsi@ae94000 {
> +           compatible = "qcom,mdss-dsi-ctrl";
> +           reg = <0x0ae94000 0x400>;
> +           reg-names = "dsi_ctrl";
> +
> +           #address-cells = <1>;
> +           #size-cells = <0>;
> +
> +           interrupt-parent = <&mdss>;
> +           interrupts = <4>;
> +
> +           clocks = <&dispcc DISP_CC_MDSS_BYTE0_CLK>,
> +                    <&dispcc DISP_CC_MDSS_BYTE0_INTF_CLK>,
> +                    <&dispcc DISP_CC_MDSS_PCLK0_CLK>,
> +                    <&dispcc DISP_CC_MDSS_ESC0_CLK>,
> +                    <&dispcc DISP_CC_MDSS_AHB_CLK>,
> +                    <&dispcc DISP_CC_MDSS_AXI_CLK>;
> +           clock-names = "byte",
> +                         "byte_intf",
> +                         "pixel",
> +                         "core",
> +                         "iface",
> +                         "bus";
> +
> +           phys = <&dsi0_phy>;
> +           phy-names = "dsi";
> +
> +           power-domains = <&rpmhpd SC7180_CX>;
> +           operating-points-v2 = <&dsi_opp_table>;
> +
> +           ports {
> +                  #address-cells = <1>;
> +                  #size-cells = <0>;
> +
> +                  port@0 {
> +                          reg = <0>;
> +                          dsi0_in: endpoint {
> +                                   remote-endpoint = <&dpu_intf1_out>;
> +                          };
> +                  };
> +
> +                  port@1 {
> +                          reg = <1>;
> +                          dsi0_out: endpoint {
> +                                   remote-endpoint = <&sn65dsi86_in>;
> +                                   data-lanes = <0 1 2 3>;
> +                          };
> +                  };
> +           };
> +     };
> +...
> diff --git a/Documentation/devicetree/bindings/display/msm/dsi.txt b/Documentation/devicetree/bindings/display/msm/dsi.txt
> deleted file mode 100644
> index b9a64d3..0000000
> --- a/Documentation/devicetree/bindings/display/msm/dsi.txt
> +++ /dev/null
> @@ -1,249 +0,0 @@
> -Qualcomm Technologies Inc. adreno/snapdragon DSI output
> -
> -DSI Controller:
> -Required properties:
> -- compatible:
> -  * "qcom,mdss-dsi-ctrl"
> -- reg: Physical base address and length of the registers of controller
> -- reg-names: The names of register regions. The following regions are required:
> -  * "dsi_ctrl"
> -- interrupts: The interrupt signal from the DSI block.
> -- power-domains: Should be <&mmcc MDSS_GDSC>.
> -- clocks: Phandles to device clocks.
> -- clock-names: the following clocks are required:
> -  * "mdp_core"
> -  * "iface"
> -  * "bus"
> -  * "core_mmss"
> -  * "byte"
> -  * "pixel"
> -  * "core"
> -  For DSIv2, we need an additional clock:
> -   * "src"
> -  For DSI6G v2.0 onwards, we need also need the clock:
> -   * "byte_intf"
> -- assigned-clocks: Parents of "byte" and "pixel" for the given platform.
> -- assigned-clock-parents: The Byte clock and Pixel clock PLL outputs provided
> -  by a DSI PHY block. See [1] for details on clock bindings.
> -- vdd-supply: phandle to vdd regulator device node
> -- vddio-supply: phandle to vdd-io regulator device node
> -- vdda-supply: phandle to vdda regulator device node
> -- phys: phandle to DSI PHY device node
> -- phy-names: the name of the corresponding PHY device
> -- syscon-sfpb: A phandle to mmss_sfpb syscon node (only for DSIv2)
> -- ports: Contains 2 DSI controller ports as child nodes. Each port contains
> -  an endpoint subnode as defined in [2] and [3].
> -
> -Optional properties:
> -- panel@0: Node of panel connected to this DSI controller.
> -  See files in [4] for each supported panel.
> -- qcom,dual-dsi-mode: Boolean value indicating if the DSI controller is
> -  driving a panel which needs 2 DSI links.
> -- qcom,master-dsi: Boolean value indicating if the DSI controller is driving
> -  the master link of the 2-DSI panel.
> -- qcom,sync-dual-dsi: Boolean value indicating if the DSI controller is
> -  driving a 2-DSI panel whose 2 links need receive command simultaneously.
> -- pinctrl-names: the pin control state names; should contain "default"
> -- pinctrl-0: the default pinctrl state (active)
> -- pinctrl-n: the "sleep" pinctrl state
> -- ports: contains DSI controller input and output ports as children, each
> -  containing one endpoint subnode.
> -
> -  DSI Endpoint properties:
> -  - remote-endpoint: For port@0, set to phandle of the connected panel/bridge's
> -    input endpoint. For port@1, set to the MDP interface output. See [2] for
> -    device graph info.
> -
> -  - data-lanes: this describes how the physical DSI data lanes are mapped
> -    to the logical lanes on the given platform. The value contained in
> -    index n describes what physical lane is mapped to the logical lane n
> -    (DATAn, where n lies between 0 and 3). The clock lane position is fixed
> -    and can't be changed. Hence, they aren't a part of the DT bindings. See
> -    [3] for more info on the data-lanes property.
> -
> -    For example:
> -
> -    data-lanes = <3 0 1 2>;
> -
> -    The above mapping describes that the logical data lane DATA0 is mapped to
> -    the physical data lane DATA3, logical DATA1 to physical DATA0, logic DATA2
> -    to phys DATA1 and logic DATA3 to phys DATA2.
> -
> -    There are only a limited number of physical to logical mappings possible:
> -    <0 1 2 3>
> -    <1 2 3 0>
> -    <2 3 0 1>
> -    <3 0 1 2>
> -    <0 3 2 1>
> -    <1 0 3 2>
> -    <2 1 0 3>
> -    <3 2 1 0>
> -
> -DSI PHY:
> -Required properties:
> -- compatible: Could be the following
> -  * "qcom,dsi-phy-28nm-hpm"
> -  * "qcom,dsi-phy-28nm-lp"
> -  * "qcom,dsi-phy-20nm"
> -  * "qcom,dsi-phy-28nm-8960"
> -  * "qcom,dsi-phy-14nm"
> -  * "qcom,dsi-phy-14nm-660"
> -  * "qcom,dsi-phy-10nm"
> -  * "qcom,dsi-phy-10nm-8998"
> -  * "qcom,dsi-phy-7nm"
> -  * "qcom,dsi-phy-7nm-8150"
> -- reg: Physical base address and length of the registers of PLL, PHY. Some
> -  revisions require the PHY regulator base address, whereas others require the
> -  PHY lane base address. See below for each PHY revision.
> -- reg-names: The names of register regions. The following regions are required:
> -  For DSI 28nm HPM/LP/8960 PHYs and 20nm PHY:
> -  * "dsi_pll"
> -  * "dsi_phy"
> -  * "dsi_phy_regulator"
> -  For DSI 14nm, 10nm and 7nm PHYs:
> -  * "dsi_pll"
> -  * "dsi_phy"
> -  * "dsi_phy_lane"
> -- clock-cells: Must be 1. The DSI PHY block acts as a clock provider, creating
> -  2 clocks: A byte clock (index 0), and a pixel clock (index 1).
> -- power-domains: Should be <&mmcc MDSS_GDSC>.
> -- clocks: Phandles to device clocks. See [1] for details on clock bindings.
> -- clock-names: the following clocks are required:
> -  * "iface"
> -  * "ref" (only required for new DTS files/entries)
> -  For 28nm HPM/LP, 28nm 8960 PHYs:
> -- vddio-supply: phandle to vdd-io regulator device node
> -  For 20nm PHY:
> -- vddio-supply: phandle to vdd-io regulator device node
> -- vcca-supply: phandle to vcca regulator device node
> -  For 14nm PHY:
> -- vcca-supply: phandle to vcca regulator device node
> -  For 10nm and 7nm PHY:
> -- vdds-supply: phandle to vdds regulator device node
> -
> -Optional properties:
> -- qcom,dsi-phy-regulator-ldo-mode: Boolean value indicating if the LDO mode PHY
> -  regulator is wanted.
> -- qcom,mdss-mdp-transfer-time-us:	Specifies the dsi transfer time for command mode
> -					panels in microseconds. Driver uses this number to adjust
> -					the clock rate according to the expected transfer time.
> -					Increasing this value would slow down the mdp processing
> -					and can result in slower performance.
> -					Decreasing this value can speed up the mdp processing,
> -					but this can also impact power consumption.
> -					As a rule this time should not be higher than the time
> -					that would be expected with the processing at the
> -					dsi link rate since anyways this would be the maximum
> -					transfer time that could be achieved.
> -					If ping pong split is enabled, this time should not be higher
> -					than two times the dsi link rate time.
> -					If the property is not specified, then the default value is 14000 us.
> -
> -[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
> -[2] Documentation/devicetree/bindings/graph.txt
> -[3] Documentation/devicetree/bindings/media/video-interfaces.txt
> -[4] Documentation/devicetree/bindings/display/panel/
> -
> -Example:
> -	dsi0: dsi@fd922800 {
> -		compatible = "qcom,mdss-dsi-ctrl";
> -		qcom,dsi-host-index = <0>;
> -		interrupt-parent = <&mdp>;
> -		interrupts = <4 0>;
> -		reg-names = "dsi_ctrl";
> -		reg = <0xfd922800 0x200>;
> -		power-domains = <&mmcc MDSS_GDSC>;
> -		clock-names =
> -			"bus",
> -			"byte",
> -			"core",
> -			"core_mmss",
> -			"iface",
> -			"mdp_core",
> -			"pixel";
> -		clocks =
> -			<&mmcc MDSS_AXI_CLK>,
> -			<&mmcc MDSS_BYTE0_CLK>,
> -			<&mmcc MDSS_ESC0_CLK>,
> -			<&mmcc MMSS_MISC_AHB_CLK>,
> -			<&mmcc MDSS_AHB_CLK>,
> -			<&mmcc MDSS_MDP_CLK>,
> -			<&mmcc MDSS_PCLK0_CLK>;
> -
> -		assigned-clocks =
> -				 <&mmcc BYTE0_CLK_SRC>,
> -				 <&mmcc PCLK0_CLK_SRC>;
> -		assigned-clock-parents =
> -				 <&dsi_phy0 0>,
> -				 <&dsi_phy0 1>;
> -
> -		vdda-supply = <&pma8084_l2>;
> -		vdd-supply = <&pma8084_l22>;
> -		vddio-supply = <&pma8084_l12>;
> -
> -		phys = <&dsi_phy0>;
> -		phy-names ="dsi-phy";
> -
> -		qcom,dual-dsi-mode;
> -		qcom,master-dsi;
> -		qcom,sync-dual-dsi;
> -
> -		qcom,mdss-mdp-transfer-time-us = <12000>;
> -
> -		pinctrl-names = "default", "sleep";
> -		pinctrl-0 = <&dsi_active>;
> -		pinctrl-1 = <&dsi_suspend>;
> -
> -		ports {
> -			#address-cells = <1>;
> -			#size-cells = <0>;
> -
> -			port@0 {
> -				reg = <0>;
> -				dsi0_in: endpoint {
> -					remote-endpoint = <&mdp_intf1_out>;
> -				};
> -			};
> -
> -			port@1 {
> -				reg = <1>;
> -				dsi0_out: endpoint {
> -					remote-endpoint = <&panel_in>;
> -					data-lanes = <0 1 2 3>;
> -				};
> -			};
> -		};
> -
> -		panel: panel@0 {
> -			compatible = "sharp,lq101r1sx01";
> -			reg = <0>;
> -			link2 = <&secondary>;
> -
> -			power-supply = <...>;
> -			backlight = <...>;
> -
> -			port {
> -				panel_in: endpoint {
> -					remote-endpoint = <&dsi0_out>;
> -				};
> -			};
> -		};
> -	};
> -
> -	dsi_phy0: dsi-phy@fd922a00 {
> -		compatible = "qcom,dsi-phy-28nm-hpm";
> -		qcom,dsi-phy-index = <0>;
> -		reg-names =
> -			"dsi_pll",
> -			"dsi_phy",
> -			"dsi_phy_regulator";
> -		reg =   <0xfd922a00 0xd4>,
> -			<0xfd922b00 0x2b0>,
> -			<0xfd922d80 0x7b>;
> -		clock-names = "iface";
> -		clocks = <&mmcc MDSS_AHB_CLK>;
> -		#clock-cells = <1>;
> -		vddio-supply = <&pma8084_l12>;
> -
> -		qcom,dsi-phy-regulator-ldo-mode;
> -	};
> -- 
> 2.7.4
> 

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 4/4] dt-bindings: msm/dp: Add bindings of MSM DisplayPort controller
  2021-05-21 10:27 ` [PATCH v17 4/4] dt-bindings: msm/dp: Add bindings of MSM DisplayPort controller Krishna Manikandan
  2021-05-21 17:19   ` Bjorn Andersson
@ 2021-05-21 18:37   ` Rob Herring
  2021-05-21 20:46   ` Stephen Boyd
  2 siblings, 0 replies; 19+ messages in thread
From: Rob Herring @ 2021-05-21 18:37 UTC (permalink / raw)
  To: Krishna Manikandan
  Cc: freedreno, dianders, dri-devel, devicetree, linux-kernel, swboyd,
	sean, vinod.koul, Chandan Uddaraju, linux-arm-msm, robh+dt,
	tanmay, kalyan_t, Vara Reddy, bjorn.andersson, abhinavk, khsieh

On Fri, 21 May 2021 15:57:24 +0530, Krishna Manikandan wrote:
> Add bindings for Snapdragon DisplayPort controller driver.
> 
> Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
> Signed-off-by: Vara Reddy <varar@codeaurora.org>
> Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
> Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
> Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
> 
> Changes in V2:
> -Provide details about sel-gpio
> 
> Changes in V4:
> -Provide details about max dp lanes
> -Change the commit text
> 
> Changes in V5:
> -moved dp.txt to yaml file
> 
> Changes in v6:
> - Squash all AUX LUT properties into one pattern Property
> - Make aux-cfg[0-9]-settings properties optional
> - Remove PLL/PHY bindings from DP controller dts
> - Add DP clocks description
> - Remove _clk suffix from clock names
> - Rename pixel clock to stream_pixel
> - Remove redundant bindings (GPIO, PHY, HDCP clock, etc..)
> - Fix indentation
> - Add Display Port as interface of DPU in DPU bindings
>   and add port mapping accordingly.
> 
> Chages in v7:
> - Add dp-controller.yaml file common between multiple SOC
> - Rename dp-sc7180.yaml to dp-controller-sc7180.yaml
> - change compatible string and add SOC name to it.
> - Remove Root clock generator for pixel clock
> - Add assigned-clocks and assigned-clock-parents bindings
> - Remove redundant properties, descriptions and blank lines
> - Add DP port in DPU bindings
> - Update depends-on tag in commit message and rebase change accordingly
> 
> Changes in v8:
> - Add MDSS AHB clock in bindings
> 
> Changes in v9:
> - Remove redundant reg-name property
> - Change assigned-clocks and assigned-clocks-parents counts to 2
> - Use IRQ flags in example dts
> 
> Changes in v10:
> - Change title of this patch as it does not contain PLL bindings anymore
> - Remove redundant properties
> - Remove use of IRQ flag
> - Fix ports property
> 
> Changes in v11:
> - add ports required of both #address-cells and  #size-cells
> - add required operating-points-v2
> - add required #sound-dai-cells
> - add required power-domains
> - update maintainer list
> 
> Changes in v12:
> - remove soc node from examples (Stephen Boyd)
> - split dpu-sc7180.yaml changes to separate patch (Stephen Boyd)
> 
> Changes in v13:
> - add assigned-clocks
> - add assigned-clock-parents
> 
> Changes in v14:
> - add reference for ports (Rob Herring)
> 
> Changes in v15:
> - drop common properties from ports (Rob Herring)
> ---
>  .../bindings/display/msm/dp-controller.yaml        | 146 +++++++++++++++++++++
>  1 file changed, 146 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> 

Reviewed-by: Rob Herring <robh@kernel.org>

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 4/4] dt-bindings: msm/dp: Add bindings of MSM DisplayPort controller
  2021-05-21 10:27 ` [PATCH v17 4/4] dt-bindings: msm/dp: Add bindings of MSM DisplayPort controller Krishna Manikandan
  2021-05-21 17:19   ` Bjorn Andersson
  2021-05-21 18:37   ` Rob Herring
@ 2021-05-21 20:46   ` Stephen Boyd
  2 siblings, 0 replies; 19+ messages in thread
From: Stephen Boyd @ 2021-05-21 20:46 UTC (permalink / raw)
  To: Krishna Manikandan, devicetree, dri-devel, freedreno,
	linux-arm-msm, linux-kernel
  Cc: kalyan_t, tanmay, abhinavk, robdclark, bjorn.andersson,
	vinod.koul, dianders, khsieh, robh+dt, sean, robh,
	Chandan Uddaraju, Vara Reddy

Quoting Krishna Manikandan (2021-05-21 03:27:24)
> Add bindings for Snapdragon DisplayPort controller driver.
>
> Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
> Signed-off-by: Vara Reddy <varar@codeaurora.org>
> Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
> Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
> Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
>
> Changes in V2:
> -Provide details about sel-gpio
>
> Changes in V4:
> -Provide details about max dp lanes
> -Change the commit text
>
> Changes in V5:
> -moved dp.txt to yaml file
>
> Changes in v6:
> - Squash all AUX LUT properties into one pattern Property
> - Make aux-cfg[0-9]-settings properties optional
> - Remove PLL/PHY bindings from DP controller dts
> - Add DP clocks description
> - Remove _clk suffix from clock names
> - Rename pixel clock to stream_pixel
> - Remove redundant bindings (GPIO, PHY, HDCP clock, etc..)
> - Fix indentation
> - Add Display Port as interface of DPU in DPU bindings
>   and add port mapping accordingly.
>
> Chages in v7:
> - Add dp-controller.yaml file common between multiple SOC
> - Rename dp-sc7180.yaml to dp-controller-sc7180.yaml
> - change compatible string and add SOC name to it.
> - Remove Root clock generator for pixel clock
> - Add assigned-clocks and assigned-clock-parents bindings
> - Remove redundant properties, descriptions and blank lines
> - Add DP port in DPU bindings
> - Update depends-on tag in commit message and rebase change accordingly
>
> Changes in v8:
> - Add MDSS AHB clock in bindings
>
> Changes in v9:
> - Remove redundant reg-name property
> - Change assigned-clocks and assigned-clocks-parents counts to 2
> - Use IRQ flags in example dts
>
> Changes in v10:
> - Change title of this patch as it does not contain PLL bindings anymore
> - Remove redundant properties
> - Remove use of IRQ flag
> - Fix ports property
>
> Changes in v11:
> - add ports required of both #address-cells and  #size-cells
> - add required operating-points-v2
> - add required #sound-dai-cells
> - add required power-domains
> - update maintainer list
>
> Changes in v12:
> - remove soc node from examples (Stephen Boyd)
> - split dpu-sc7180.yaml changes to separate patch (Stephen Boyd)
>
> Changes in v13:
> - add assigned-clocks
> - add assigned-clock-parents
>
> Changes in v14:
> - add reference for ports (Rob Herring)
>
> Changes in v15:
> - drop common properties from ports (Rob Herring)
> ---

Reviewed-by: Stephen Boyd <swboyd@chromium.org>

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings
  2021-05-21 10:27 [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings Krishna Manikandan
                   ` (4 preceding siblings ...)
  2021-05-21 18:29 ` Rob Herring
@ 2021-05-21 20:47 ` Stephen Boyd
  5 siblings, 0 replies; 19+ messages in thread
From: Stephen Boyd @ 2021-05-21 20:47 UTC (permalink / raw)
  To: Krishna Manikandan, devicetree, dri-devel, freedreno,
	linux-arm-msm, linux-kernel
  Cc: kalyan_t, tanmay, abhinavk, robdclark, bjorn.andersson,
	vinod.koul, dianders, khsieh, robh+dt, sean, robh

Quoting Krishna Manikandan (2021-05-21 03:27:21)
> MSM Mobile Display Subsystem (MDSS) encapsulates sub-blocks
> like DPU display controller, DSI etc. Add YAML schema
> for DPU device tree bindings.
>
> Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
>
> Changes in v2:
>     - Changed dpu to DPU (Sam Ravnborg)
>     - Fixed indentation issues (Sam Ravnborg)
>     - Added empty line between different properties (Sam Ravnborg)
>     - Replaced reference txt files with  their corresponding
>       yaml files (Sam Ravnborg)
>     - Modified the file to use "|" only when it is
>       necessary (Sam Ravnborg)
>
> Changes in v3:
>     - Corrected the license used (Rob Herring)
>     - Added maxItems for properties (Rob Herring)
>     - Dropped generic descriptions (Rob Herring)
>     - Added ranges property (Rob Herring)
>     - Corrected the indendation (Rob Herring)
>     - Added additionalProperties (Rob Herring)
>     - Split dsi file into two, one for dsi controller
>       and another one for dsi phy per target (Rob Herring)
>     - Corrected description for pinctrl-names (Rob Herring)
>     - Corrected the examples used in yaml file (Rob Herring)
>     - Delete dsi.txt and dpu.txt (Rob Herring)
>
> Changes in v4:
>     - Move schema up by one level (Rob Herring)
>     - Add patternProperties for mdp node (Rob Herring)
>     - Corrected description of some properties (Rob Herring)
>
> Changes in v5:
>     - Correct the indentation (Rob Herring)
>     - Remove unnecessary description from properties (Rob Herring)
>     - Correct the number of interconnect entries (Rob Herring)
>     - Add interconnect names for sc7180 (Rob Herring)
>     - Add description for ports (Rob Herring)
>     - Remove common properties (Rob Herring)
>     - Add unevalutatedProperties (Rob Herring)
>     - Reference existing dsi controller yaml in the common
>       dsi controller file (Rob Herring)
>     - Correct the description of clock names to include only the
>       clocks that are required (Rob Herring)
>     - Remove properties which are already covered under the common
>       binding (Rob Herring)
>     - Add dsi phy supply nodes which are required for sc7180 and
>       sdm845 targets (Rob Herring)
>     - Add type ref for syscon-sfpb (Rob Herring)
>
> Changes in v6:
>     - Fixed errors during dt_binding_check (Rob Herring)
>     - Add maxItems for phys and phys-names (Rob Herring)
>     - Use unevaluatedProperties wherever required (Rob Herring)
>     - Removed interrupt controller from required properties for
>       dsi controller (Rob Herring)
>     - Add constraints for dsi-phy reg-names based on the compatible
>       phy version (Rob Herring)
>     - Add constraints for dsi-phy supply nodes based on the
>       compatible phy version (Rob Herring)
>
> Changes in v7:
>     - Add default value for qcom,mdss-mdp-transfer-time-us (Rob Herring)
>     - Modify the schema for data-lanes (Rob Herring)
>     - Split the phy schema into separate schemas based on
>       the phy version (Rob Herring)
>
> Changes in v8:
>     - Resolve merge conflicts with latest dsi.txt file
>     - Include dp yaml change also in the same series
>
> Changes in v9:
>     - Combine target specific dsi controller yaml files
>       to a single yaml file (Rob Herring)
>     - Combine target specific dsi phy yaml files into a
>       single yaml file (Rob Herring)
>     - Use unevaluatedProperties and additionalProperties
>       wherever required
>     - Remove duplicate properties from common yaml files
>
> Changes in v10:
>     - Split the patch into separate patches for DPU, DSI and
>       PHY (Stephen Boyd)
>     - Drop unnecessary fullstop (Stephen Boyd)
>     - Add newline whereever required (Stephen Boyd)
>     - Add description for clock used (Stephen Boyd)
>     - Modify the description for interconnect entries  (Stephen Boyd)
>     - Drop assigned clock entries as it a generic property (Stephen Boyd)
>     - Correct the definition for interrupts (Stephen Boyd)
>     - Drop clock names from required properties (Stephen Boyd)
>     - Drop labels for display nodes from example (Stephen Boyd)
>     - Drop flags from interrupts entries (Stephen Boyd)
>
> Changes in v11:
>     - Drop maxItems for clocks (Stephen Boyd)
>
> Changes in v12:
>     - Add description for register property (Stephen Boyd)
>     - Add maxItems for interrupts (Stephen Boyd)
>     - Add description for iommus property (Stephen Boyd)
>     - Add description for interconnects (Stephen Boyd)
>     - Change display node name to display_controller (Stephen Boyd)
>
> Changes in v13:
>     - Add maxItems for reg property (Stephen Boyd)
>     - Add ranges property in example (Stephen Boyd)
>     - Modify description for iommus property (Stephen Boyd)
>     - Add Dp bindings for ports in the same patch (Stephen Boyd)
>     - Remove soc from examples and change address and size cells
>       accordingly (Stephen Boyd)
>     - Add reference for ports
>
> Changes in v14:
>     - Modify title for SC7180 and SDM845 yaml files (Stephen Boyd)
>     - Add required list for display-controller node (Stephen Boyd)
>
> Changes in v16:
>     - Add reference for port (Rob Herring)
>     - Make additionalProperties as false (Rob Herring)
> ---

Reviewed-by: Stephen Boyd <swboyd@chromium.org>

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 2/4] dt-bindings: msm: dsi: add yaml schemas for DSI bindings
  2021-05-21 10:27 ` [PATCH v17 2/4] dt-bindings: msm: dsi: add yaml schemas for DSI bindings Krishna Manikandan
  2021-05-21 17:14   ` Bjorn Andersson
  2021-05-21 18:37   ` Rob Herring
@ 2021-05-21 20:47   ` Stephen Boyd
  2 siblings, 0 replies; 19+ messages in thread
From: Stephen Boyd @ 2021-05-21 20:47 UTC (permalink / raw)
  To: Krishna Manikandan, devicetree, dri-devel, freedreno,
	linux-arm-msm, linux-kernel
  Cc: kalyan_t, tanmay, abhinavk, robdclark, bjorn.andersson,
	vinod.koul, dianders, khsieh, robh+dt, sean, robh

Quoting Krishna Manikandan (2021-05-21 03:27:22)
> Add YAML schema for the device tree bindings for DSI
>
> Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
>
> Changes in v1:
>     - Separate dsi controller bindings to a separate patch (Stephen Boyd)
>     - Merge dsi-common-controller.yaml and dsi-controller-main.yaml to
>       a single file (Stephen Boyd)
>     - Drop supply entries and definitions from properties (Stephen Boyd)
>     - Modify phy-names property for dsi controller (Stephen Boyd)
>     - Remove boolean from description (Stephen Boyd)
>     - Drop pinctrl properties as they are standard entries (Stephen Boyd)
>     - Modify the description for ports property and keep the reference
>       to the generic binding where this is defined (Stephen Boyd)
>     - Add description to clock names (Stephen Boyd)
>     - Correct the indendation (Stephen Boyd)
>     - Drop the label for display dt nodes and correct the node
>       name (Stephen Boyd)
>
> Changes in v2:
>     - Drop maxItems for clock (Stephen Boyd)
>     - Drop qcom,mdss-mdp-transfer-time-us as it is not used in upstream
>       dt file (Stephen Boyd)
>     - Keep child node directly under soc node (Stephen Boyd)
>     - Drop qcom,sync-dual-dsi as it is not used in upstream dt
>
> Changes in v3:
>     - Add description for register property (Stephen Boyd)
>
> Changes in v4:
>     - Add maxItems for phys property (Stephen Boyd)
>     - Add maxItems for reg property (Stephen Boyd)
>     - Add reference for data-lanes property (Stephen Boyd)
>     - Remove soc from example (Stephen Boyd)
>
> Changes in v5:
>     - Modify title and description (Stephen Boyd)
>     - Add required properties for ports node (Stephen Boyd)
>     - Add data-lanes in the example (Stephen Boyd)
>     - Drop qcom,master-dsi property (Stephen Boyd)
>
> Changes in v6:
>     - Add required properties for port@0, port@1 and corresponding
>       endpoints (Stephen Boyd)
>     - Add address-cells and size-cells for ports (Stephen Boyd)
>     - Use additionalProperties instead of unevaluatedProperties (Stephen Boyd)
>
> Changes in v7:
>     - Add reference for ports and data-lanes (Rob Herring)
>     - Add maxItems and minItems for data-lanes (Rob Herring)
>
> Changes in v8:
>     - Drop common properties and description from ports (Rob Herring)
>     - Add reference for endpoint (Rob Herring)
>     - Add correct reference for data-lanes (Rob Herring)
>     - Drop common properties from required list for ports (Rob Herring)
> ---

Reviewed-by: Stephen Boyd <swboyd@chromium.org>

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 3/4] dt-bindings: msm: dsi: add yaml schemas for DSI PHY bindings
  2021-05-21 10:27 ` [PATCH v17 3/4] dt-bindings: msm: dsi: add yaml schemas for DSI PHY bindings Krishna Manikandan
  2021-05-21 17:18   ` Bjorn Andersson
  2021-05-21 18:29   ` Rob Herring
@ 2021-05-21 20:47   ` Stephen Boyd
  2 siblings, 0 replies; 19+ messages in thread
From: Stephen Boyd @ 2021-05-21 20:47 UTC (permalink / raw)
  To: Krishna Manikandan, devicetree, dri-devel, freedreno,
	linux-arm-msm, linux-kernel
  Cc: kalyan_t, tanmay, abhinavk, robdclark, bjorn.andersson,
	vinod.koul, dianders, khsieh, robh+dt, sean, robh

Quoting Krishna Manikandan (2021-05-21 03:27:23)
> Add YAML schema for the device tree bindings for DSI PHY.
>
> Signed-off-by: Krishna Manikandan <mkrishn@codeaurora.org>
>
> Changes in v1:
>    - Merge dsi-phy.yaml and dsi-phy-10nm.yaml (Stephen Boyd)
>    - Remove qcom,dsi-phy-regulator-ldo-mode (Stephen Boyd)
>    - Add clock cells properly (Stephen Boyd)
>    - Remove unnecessary decription from clock names (Stephen Boyd)
>    - Add pin names for the supply entries for 10nm phy which is
>      used in sc7180 and sdm845 (Stephen Boyd)
>    - Remove unused header files from examples (Stephen Boyd)
>    - Drop labels for display nodes and correct node name (Stephen Boyd)
>
> Changes in v2:
>    - Drop maxItems for clock (Stephen Boyd)
>    - Add vdds supply pin information for sdm845 (Stephen Boyd)
>    - Add examples for 14nm, 20nm and 28nm phy yaml files (Stephen Boyd)
>    - Keep child nodes directly under soc node (Stephen Boyd)
>
> Changes in v3:
>    - Use a separate yaml file to describe the common properties
>      for all the dsi phy versions (Stephen Boyd)
>    - Remove soc from examples (Stephen Boyd)
>    - Add description for register property
>
> Changes in v4:
>    - Modify the title for all the phy versions (Stephen Boyd)
>    - Drop description for all the phy versions (Stephen Boyd)
>    - Modify the description for register property (Stephen Boyd)
>
> Changes in v5:
>    - Remove unused properties from common dsi phy file
>    - Add clock-cells and phy-cells to required property
>      list (Stephen Boyd)
>
> Changes in v6:
>    - Add proper compatible string in example
> ---

Reviewed-by: Stephen Boyd <swboyd@chromium.org>

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings
  2021-05-21 16:00 ` [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings Bjorn Andersson
  2021-05-21 17:11   ` Bjorn Andersson
@ 2021-05-21 20:51   ` Stephen Boyd
  2021-05-21 21:29     ` Bjorn Andersson
  1 sibling, 1 reply; 19+ messages in thread
From: Stephen Boyd @ 2021-05-21 20:51 UTC (permalink / raw)
  To: Bjorn Andersson, Krishna Manikandan
  Cc: dri-devel, linux-arm-msm, freedreno, devicetree, linux-kernel,
	kalyan_t, tanmay, abhinavk, robdclark, vinod.koul, dianders,
	khsieh, robh+dt, sean, robh

Quoting Bjorn Andersson (2021-05-21 09:00:29)
> On Fri 21 May 05:27 CDT 2021, Krishna Manikandan wrote:
> > diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
> [..]
> > +      ports:
> > +        $ref: /schemas/graph.yaml#/properties/ports
> > +        description: |
> > +          Contains the list of output ports from DPU device. These ports
> > +          connect to interfaces that are external to the DPU hardware,
> > +          such as DSI, DP etc. Each output port contains an endpoint that
> > +          describes how it is connected to an external interface.
> > +
> > +        properties:
> > +          port@0:
> > +            $ref: /schemas/graph.yaml#/properties/port
> > +            description: DPU_INTF1 (DSI1)
> > +
> > +          port@2:
> > +            $ref: /schemas/graph.yaml#/properties/port
> > +            description: DPU_INTF0 (DP)
>
> Why is port@0 INTF1 and why is port@2 INTF0? In the binding you're
> translating the two ports that are described are 0 and 1, representing
> INTF1 and INTF2, or DSI1 and DSI2, respectively.
>
> Further more, I have a need for somehow describing the pairing of 4 DP
> INTFs (INTF 0, 3, 4 and 5) and how they are connected to the 3+1 DP+eDP
> controllers.
>
> Downstream this seems to be handled by adding cell-index to the DP
> controllers and then matching that against the numbering in the driver's
> INTF array. But rather than adding cell-index to map this, can't we
> define that the port index is the INTF-number here?
>
>
> This would obviously break compatibility with existing DTBs, but we
> could start by doing it selectively for the new compatibles, fix up the
> existing dts files and then drop the selective application after 1 or 2
> LTS releases.

I requested that the existing DT not change a while ago when the DP
interface was being added to this binding. Is it possible to figure out
what interface it is that the port is for from the binding? It feels
like the problem is that the driver wants to look through the graph and
make connectors for each one, but it doesn't know what type of connector
to make.

^ permalink raw reply	[flat|nested] 19+ messages in thread

* Re: [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings
  2021-05-21 20:51   ` Stephen Boyd
@ 2021-05-21 21:29     ` Bjorn Andersson
  0 siblings, 0 replies; 19+ messages in thread
From: Bjorn Andersson @ 2021-05-21 21:29 UTC (permalink / raw)
  To: Stephen Boyd
  Cc: Krishna Manikandan, dri-devel, linux-arm-msm, freedreno,
	devicetree, linux-kernel, kalyan_t, tanmay, abhinavk, robdclark,
	vinod.koul, dianders, khsieh, robh+dt, sean, robh

On Fri 21 May 15:51 CDT 2021, Stephen Boyd wrote:

> Quoting Bjorn Andersson (2021-05-21 09:00:29)
> > On Fri 21 May 05:27 CDT 2021, Krishna Manikandan wrote:
> > > diff --git a/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml b/Documentation/devicetree/bindings/display/msm/dpu-sc7180.yaml
> > [..]
> > > +      ports:
> > > +        $ref: /schemas/graph.yaml#/properties/ports
> > > +        description: |
> > > +          Contains the list of output ports from DPU device. These ports
> > > +          connect to interfaces that are external to the DPU hardware,
> > > +          such as DSI, DP etc. Each output port contains an endpoint that
> > > +          describes how it is connected to an external interface.
> > > +
> > > +        properties:
> > > +          port@0:
> > > +            $ref: /schemas/graph.yaml#/properties/port
> > > +            description: DPU_INTF1 (DSI1)
> > > +
> > > +          port@2:
> > > +            $ref: /schemas/graph.yaml#/properties/port
> > > +            description: DPU_INTF0 (DP)
> >
> > Why is port@0 INTF1 and why is port@2 INTF0? In the binding you're
> > translating the two ports that are described are 0 and 1, representing
> > INTF1 and INTF2, or DSI1 and DSI2, respectively.
> >
> > Further more, I have a need for somehow describing the pairing of 4 DP
> > INTFs (INTF 0, 3, 4 and 5) and how they are connected to the 3+1 DP+eDP
> > controllers.
> >
> > Downstream this seems to be handled by adding cell-index to the DP
> > controllers and then matching that against the numbering in the driver's
> > INTF array. But rather than adding cell-index to map this, can't we
> > define that the port index is the INTF-number here?
> >
> >
> > This would obviously break compatibility with existing DTBs, but we
> > could start by doing it selectively for the new compatibles, fix up the
> > existing dts files and then drop the selective application after 1 or 2
> > LTS releases.
> 
> I requested that the existing DT not change a while ago when the DP
> interface was being added to this binding. Is it possible to figure out
> what interface it is that the port is for from the binding? It feels
> like the problem is that the driver wants to look through the graph and
> make connectors for each one, but it doesn't know what type of connector
> to make.

Today there's a single priv->dp pointer which is initialized as the one
and only displayport controller component is bound.
_dpu_kms_set_encoder_mode() has no knowledge about which interface this
single controller is attached to, so dpu_encoder_setup_display() will
always just pick INTF_DP index 0.

So in its current form if your single DP port isn't sitting on the
platform's first DP INTF you need to hack dpu_hw_catalog and remove the
previous ones.

But with my desire to reuse the DP controller code for eDP, and the fact
that I have 3 DP controllers in my laptop we need something more.

But after considering my proposal further I realized that it is too
static for my use case anyway. SC8180x has INTF 0 and 4 are wired to
the DP controllers associated with the two primary USB ports and then
INTF 3 is dynamically switched between them for MST purposes.

So using port indices would prevent me from doing this dynamic dance.

Regards,
Bjorn

^ permalink raw reply	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2021-05-21 21:29 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-05-21 10:27 [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings Krishna Manikandan
2021-05-21 10:27 ` [PATCH v17 2/4] dt-bindings: msm: dsi: add yaml schemas for DSI bindings Krishna Manikandan
2021-05-21 17:14   ` Bjorn Andersson
2021-05-21 18:37   ` Rob Herring
2021-05-21 20:47   ` Stephen Boyd
2021-05-21 10:27 ` [PATCH v17 3/4] dt-bindings: msm: dsi: add yaml schemas for DSI PHY bindings Krishna Manikandan
2021-05-21 17:18   ` Bjorn Andersson
2021-05-21 18:29   ` Rob Herring
2021-05-21 20:47   ` Stephen Boyd
2021-05-21 10:27 ` [PATCH v17 4/4] dt-bindings: msm/dp: Add bindings of MSM DisplayPort controller Krishna Manikandan
2021-05-21 17:19   ` Bjorn Andersson
2021-05-21 18:37   ` Rob Herring
2021-05-21 20:46   ` Stephen Boyd
2021-05-21 16:00 ` [PATCH v17 1/4] dt-bindings: msm: disp: add yaml schemas for DPU bindings Bjorn Andersson
2021-05-21 17:11   ` Bjorn Andersson
2021-05-21 20:51   ` Stephen Boyd
2021-05-21 21:29     ` Bjorn Andersson
2021-05-21 18:29 ` Rob Herring
2021-05-21 20:47 ` Stephen Boyd

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