[PATCH 04/10] dt-bindings: display: samsung, exynos5433-decon: convert to dtschema
Krzysztof Kozlowski
krzysztof.kozlowski at canonical.com
Tue Feb 8 09:18:17 PST 2022
Convert the Exynos5433 DECON display controller bindings to DT schema
format.
The conversion includes also updates to the bindings, matching the
current DTS and Linux driver:
1. Require "fifo" interrupt.
2. Add "dsd" as a last clock.
3. Document "power-domains" and "iommus" properties.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski at canonical.com>
---
.../display/exynos/exynos5433-decon.txt | 60 -------
.../samsung/samsung,exynos5433-decon.yaml | 148 ++++++++++++++++++
MAINTAINERS | 1 +
3 files changed, 149 insertions(+), 60 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/display/exynos/exynos5433-decon.txt
create mode 100644 Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-decon.yaml
diff --git a/Documentation/devicetree/bindings/display/exynos/exynos5433-decon.txt b/Documentation/devicetree/bindings/display/exynos/exynos5433-decon.txt
deleted file mode 100644
index 775193e1c641..000000000000
--- a/Documentation/devicetree/bindings/display/exynos/exynos5433-decon.txt
+++ /dev/null
@@ -1,60 +0,0 @@
-Device-Tree bindings for Samsung Exynos SoC display controller (DECON)
-
-DECON (Display and Enhancement Controller) is the Display Controller for the
-Exynos series of SoCs which transfers the image data from a video memory
-buffer to an external LCD interface.
-
-Required properties:
-- compatible: value should be one of:
- "samsung,exynos5433-decon", "samsung,exynos5433-decon-tv";
-- reg: physical base address and length of the DECON registers set.
-- interrupt-names: should contain the interrupt names depending on mode of work:
- video mode: "vsync",
- command mode: "lcd_sys",
- command mode with software trigger: "lcd_sys", "te".
-- interrupts or interrupts-extended: list of interrupt specifiers corresponding
- to names privided in interrupt-names, as described in
- interrupt-controller/interrupts.txt
-- clocks: must include clock specifiers corresponding to entries in the
- clock-names property.
-- clock-names: list of clock names sorted in the same order as the clocks
- property. Must contain "pclk", "aclk_decon", "aclk_smmu_decon0x",
- "aclk_xiu_decon0x", "pclk_smmu_decon0x", "aclk_smmu_decon1x",
- "aclk_xiu_decon1x", "pclk_smmu_decon1x", clk_decon_vclk",
- "sclk_decon_eclk"
-- ports: contains a port which is connected to mic node. address-cells and
- size-cells must 1 and 0, respectively.
-- port: contains an endpoint node which is connected to the endpoint in the mic
- node. The reg value muset be 0.
-
-Example:
-SoC specific DT entry:
-decon: decon at 13800000 {
- compatible = "samsung,exynos5433-decon";
- reg = <0x13800000 0x2104>;
- clocks = <&cmu_disp CLK_ACLK_DECON>, <&cmu_disp CLK_ACLK_SMMU_DECON0X>,
- <&cmu_disp CLK_ACLK_XIU_DECON0X>,
- <&cmu_disp CLK_PCLK_SMMU_DECON0X>,
- <&cmu_disp CLK_ACLK_SMMU_DECON1X>,
- <&cmu_disp CLK_ACLK_XIU_DECON1X>,
- <&cmu_disp CLK_PCLK_SMMU_DECON1X>,
- <&cmu_disp CLK_SCLK_DECON_VCLK>,
- <&cmu_disp CLK_SCLK_DECON_ECLK>;
- clock-names = "aclk_decon", "aclk_smmu_decon0x", "aclk_xiu_decon0x",
- "pclk_smmu_decon0x", "aclk_smmu_decon1x", "aclk_xiu_decon1x",
- "pclk_smmu_decon1x", "sclk_decon_vclk", "sclk_decon_eclk";
- interrupt-names = "vsync", "lcd_sys";
- interrupts = <0 202 0>, <0 203 0>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port at 0 {
- reg = <0>;
- decon_to_mic: endpoint {
- remote-endpoint = <&mic_to_decon>;
- };
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-decon.yaml b/Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-decon.yaml
new file mode 100644
index 000000000000..6f796835ea03
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-decon.yaml
@@ -0,0 +1,148 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/samsung/samsung,exynos5433-decon.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos5433 SoC Display and Enhancement Controller (DECON)
+
+maintainers:
+ - Inki Dae <inki.dae at samsung.com>
+ - Joonyoung Shim <jy0922.shim at samsung.com>
+ - Seung-Woo Kim <sw0312.kim at samsung.com>
+ - Kyungmin Park <kyungmin.park at samsung.com>
+ - Krzysztof Kozlowski <krzysztof.kozlowski at canonical.com>
+
+description: |
+ DECON (Display and Enhancement Controller) is the Display Controller for the
+ Exynos5433 series of SoCs which transfers the image data from a video memory
+ buffer to an external LCD interface.
+
+properties:
+ compatible:
+ enum:
+ - samsung,exynos5433-decon
+ - samsung,exynos5433-decon-tv
+
+ clocks:
+ minItems: 11
+ maxItems: 11
+
+ clock-names:
+ items:
+ - const: pclk
+ - const: aclk_decon
+ - const: aclk_smmu_decon0x
+ - const: aclk_xiu_decon0x
+ - const: pclk_smmu_decon0x
+ - const: aclk_smmu_decon1x
+ - const: aclk_xiu_decon1x
+ - const: pclk_smmu_decon1x
+ - const: sclk_decon_vclk
+ - const: sclk_decon_eclk
+ - const: dsd
+
+ interrupts:
+ minItems: 3
+ maxItems: 4
+ description: |
+ Interrupts depend on mode of work:
+ - video mode: vsync
+ - command mode: lcd_sys
+ - command mode with software trigger: lcd_sys, te
+
+ interrupt-names:
+ minItems: 3
+ items:
+ - const: fifo
+ - const: vsync
+ - const: lcd_sys
+ - const: te
+
+ iommus:
+ minItems: 2
+ maxItems: 2
+
+ iommu-names:
+ items:
+ - const: m0
+ - const: m1
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+ description:
+ Contains a port which is connected to mic node.
+
+ power-domains:
+ maxItems: 1
+
+ reg:
+ maxItems: 1
+
+ samsung,disp-sysreg:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to DISP system controller interface.
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - interrupts
+ - interrupt-names
+ - ports
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/exynos5433.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ display-controller at 13800000 {
+ compatible = "samsung,exynos5433-decon";
+ reg = <0x13800000 0x2104>;
+ clocks = <&cmu_disp CLK_PCLK_DECON>,
+ <&cmu_disp CLK_ACLK_DECON>,
+ <&cmu_disp CLK_ACLK_SMMU_DECON0X>,
+ <&cmu_disp CLK_ACLK_XIU_DECON0X>,
+ <&cmu_disp CLK_PCLK_SMMU_DECON0X>,
+ <&cmu_disp CLK_ACLK_SMMU_DECON1X>,
+ <&cmu_disp CLK_ACLK_XIU_DECON1X>,
+ <&cmu_disp CLK_PCLK_SMMU_DECON1X>,
+ <&cmu_disp CLK_SCLK_DECON_VCLK>,
+ <&cmu_disp CLK_SCLK_DECON_ECLK>,
+ <&cmu_disp CLK_SCLK_DSD>;
+ clock-names = "pclk",
+ "aclk_decon",
+ "aclk_smmu_decon0x",
+ "aclk_xiu_decon0x",
+ "pclk_smmu_decon0x",
+ "aclk_smmu_decon1x",
+ "aclk_xiu_decon1x",
+ "pclk_smmu_decon1x",
+ "sclk_decon_vclk",
+ "sclk_decon_eclk",
+ "dsd";
+ power-domains = <&pd_disp>;
+ interrupt-names = "fifo", "vsync", "lcd_sys";
+ interrupts = <GIC_SPI 201 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 202 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 203 IRQ_TYPE_LEVEL_HIGH>;
+ samsung,disp-sysreg = <&syscon_disp>;
+ iommus = <&sysmmu_decon0x>, <&sysmmu_decon1x>;
+ iommu-names = "m0", "m1";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port at 0 {
+ reg = <0>;
+ decon_to_mic: endpoint {
+ remote-endpoint = <&mic_to_decon>;
+ };
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index ddcee331dc09..a0ad276b3159 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6417,6 +6417,7 @@ L: dri-devel at lists.freedesktop.org
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git
F: Documentation/devicetree/bindings/display/exynos/
+F: Documentation/devicetree/bindings/display/samsung/
F: drivers/gpu/drm/exynos/
F: include/uapi/drm/exynos_drm.h
--
2.32.0
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