[PATCH v2 04/11] dt-bindings: display/msm: split qcom, mdss bindings
Dmitry Baryshkov
dmitry.baryshkov at linaro.org
Sun Jul 10 09:00:33 UTC 2022
Split Mobile Display SubSystem (MDSS) root node bindings to the separate
yaml file. Changes to the existing (txt) schema:
- Added optional "vbif_nrt_phys" region used by msm8996
- Made "bus" and "vsync" clocks optional (they are not used by some
platforms)
- Added (optional) "core" clock added recently to the mdss driver
- Added optional resets property referencing MDSS reset
- Defined child nodes pointing to corresponding reference schema.
- Dropped the "lut" clock. It was added to the schema by mistake (it is
a part of mdp4 schema, not the mdss).
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
.../devicetree/bindings/display/msm/mdp5.txt | 30 +---
.../devicetree/bindings/display/msm/mdss.yaml | 161 ++++++++++++++++++
2 files changed, 162 insertions(+), 29 deletions(-)
create mode 100644 Documentation/devicetree/bindings/display/msm/mdss.yaml
diff --git a/Documentation/devicetree/bindings/display/msm/mdp5.txt b/Documentation/devicetree/bindings/display/msm/mdp5.txt
index 43d11279c925..65d03c58dee6 100644
--- a/Documentation/devicetree/bindings/display/msm/mdp5.txt
+++ b/Documentation/devicetree/bindings/display/msm/mdp5.txt
@@ -2,37 +2,9 @@ Qualcomm adreno/snapdragon MDP5 display controller
Description:
-This is the bindings documentation for the Mobile Display Subsytem(MDSS) that
-encapsulates sub-blocks like MDP5, DSI, HDMI, eDP etc, and the MDP5 display
+This is the bindings documentation for the MDP5 display
controller found in SoCs like MSM8974, APQ8084, MSM8916, MSM8994 and MSM8996.
-MDSS:
-Required properties:
-- compatible:
- * "qcom,mdss" - MDSS
-- reg: Physical base address and length of the controller's registers.
-- reg-names: The names of register regions. The following regions are required:
- * "mdss_phys"
- * "vbif_phys"
-- interrupts: The 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.
-- power-domains: a power domain consumer specifier according to
- Documentation/devicetree/bindings/power/power_domain.txt
-- clocks: device clocks. See ../clocks/clock-bindings.txt for details.
-- clock-names: the following clocks are required.
- * "iface"
- * "bus"
- * "vsync"
-- #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.
-
-Optional properties:
-- clock-names: the following clocks are optional:
- * "lut"
-
MDP5:
Required properties:
- compatible:
diff --git a/Documentation/devicetree/bindings/display/msm/mdss.yaml b/Documentation/devicetree/bindings/display/msm/mdss.yaml
new file mode 100644
index 000000000000..ba674a261b18
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/msm/mdss.yaml
@@ -0,0 +1,161 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/msm/mdss.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Mobile Display SubSystem (MDSS)
+
+maintainers:
+ - Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
+ - Rob Clark <robdclark at gmail.com>
+
+description:
+ This is the bindings documentation for the Mobile Display Subsytem(MDSS) that
+ encapsulates sub-blocks like MDP5, DSI, HDMI, eDP, etc.
+
+properties:
+ compatible:
+ enum:
+ - qcom,mdss
+
+ reg:
+ minItems: 2
+ maxItems: 3
+
+ reg-names:
+ minItems: 2
+ items:
+ - const: mdss_phys
+ - const: vbif_phys
+ - const: vbif_nrt_phys
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-controller:
+ true
+
+ "#interrupt-cells":
+ const: 1
+
+ power-domains:
+ maxItems: 1
+ description: |
+ The MDSS power domain provided by GCC
+
+ clocks:
+ minItems: 1
+ maxItems: 4
+
+ clock-names:
+ minItems: 1
+ maxItems: 4
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 1
+
+ ranges:
+ true
+
+ resets:
+ items:
+ - description: MDSS_CORE reset
+
+oneOf:
+ - properties:
+ clocks:
+ minItems: 3
+ maxItems: 4
+
+ clock-names:
+ minItems: 3
+ items:
+ - const: iface
+ - const: bus
+ - const: vsync
+ - const: core
+ - properties:
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: iface
+ - const: core
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - interrupt-controller
+ - "#interrupt-cells"
+ - power-domains
+ - clocks
+ - clock-names
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+
+patternProperties:
+ "^mdp@(0|[1-9a-f][0-9a-f]*)$":
+ type: object
+ # TODO: add reference once the mdp5 is converted
+
+ "^dsi@(0|[1-9a-f][0-9a-f]*)$":
+ $ref: dsi-controller-main.yaml#
+
+ "^dsi-phy@(0|[1-9a-f][0-9a-f]*)$":
+ oneOf:
+ - $ref: dsi-phy-28nm.yaml#
+ - $ref: dsi-phy-20nm.yaml#
+ - $ref: dsi-phy-14nm.yaml#
+ - $ref: dsi-phy-10nm.yaml#
+ - $ref: dsi-phy-7nm.yaml#
+
+ "^hdmi-phy@(0|[1-9a-f][0-9a-f]*)$":
+ oneOf:
+ - $ref: /schemas/phy/qcom,hdmi-phy-qmp.yaml#
+ - $ref: /schemas/phy/qcom,hdmi-phy-other.yaml#
+
+ "^hdmi-tx@(0|[1-9a-f][0-9a-f]*)$":
+ $ref: hdmi.yaml#
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/qcom,gcc-msm8916.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ mdss at 1a00000 {
+ compatible = "qcom,mdss";
+ reg = <0x1a00000 0x1000>,
+ <0x1ac8000 0x3000>;
+ reg-names = "mdss_phys", "vbif_phys";
+
+ power-domains = <&gcc MDSS_GDSC>;
+
+ clocks = <&gcc GCC_MDSS_AHB_CLK>,
+ <&gcc GCC_MDSS_AXI_CLK>,
+ <&gcc GCC_MDSS_VSYNC_CLK>;
+ clock-names = "iface",
+ "bus",
+ "vsync";
+
+ interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ };
+...
--
2.35.1
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