dt-bindings: bridge: Convert Samsung MIPI DSIM bridge to yaml
Samsung MIPI DSIM bridge can be found on Exynos and NXP's i.MX8M Mini/Nano/Plus SoCs. Convert exynos_dsim.txt to yaml. Used the example node from exynos5433.dtsi instead of the one used in the legacy exynos_dsim.txt. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Signed-off-by: Fabio Estevam <festevam@denx.de> Reviewed-by: Marek Vasut <marex@denx.de> Link: https://lore.kernel.org/r/20230404023057.510329-1-festevam@gmail.com Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Jagan Teki
Rob Herring
parent
9e69bcd88e
commit
1f0d40d88f
3 changed files with 256 additions and 92 deletions
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/display/bridge/samsung,mipi-dsim.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Samsung MIPI DSIM bridge controller
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maintainers:
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- Inki Dae <inki.dae@samsung.com>
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- Jagan Teki <jagan@amarulasolutions.com>
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- Marek Szyprowski <m.szyprowski@samsung.com>
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description: |
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Samsung MIPI DSIM bridge controller can be found it on Exynos
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and i.MX8M Mini/Nano/Plus SoC's.
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properties:
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compatible:
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oneOf:
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- enum:
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- samsung,exynos3250-mipi-dsi
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- samsung,exynos4210-mipi-dsi
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- samsung,exynos5410-mipi-dsi
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- samsung,exynos5422-mipi-dsi
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- samsung,exynos5433-mipi-dsi
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- fsl,imx8mm-mipi-dsim
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- fsl,imx8mp-mipi-dsim
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- items:
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- const: fsl,imx8mn-mipi-dsim
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- const: fsl,imx8mm-mipi-dsim
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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clocks:
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minItems: 2
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maxItems: 5
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clock-names:
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minItems: 2
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maxItems: 5
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samsung,phy-type:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: phandle to the samsung phy-type
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power-domains:
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maxItems: 1
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samsung,power-domain:
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$ref: /schemas/types.yaml#/definitions/phandle
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description: phandle to the associated samsung power domain
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vddcore-supply:
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description: MIPI DSIM Core voltage supply (e.g. 1.1V)
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vddio-supply:
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description: MIPI DSIM I/O and PLL voltage supply (e.g. 1.8V)
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samsung,burst-clock-frequency:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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DSIM high speed burst mode frequency.
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samsung,esc-clock-frequency:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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DSIM escape mode frequency.
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samsung,pll-clock-frequency:
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$ref: /schemas/types.yaml#/definitions/uint32
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description:
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DSIM oscillator clock frequency.
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phys:
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maxItems: 1
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phy-names:
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const: dsim
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ports:
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$ref: /schemas/graph.yaml#/properties/ports
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properties:
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port@0:
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$ref: /schemas/graph.yaml#/properties/port
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description:
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Input port node to receive pixel data from the
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display controller. Exactly one endpoint must be
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specified.
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port@1:
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$ref: /schemas/graph.yaml#/properties/port
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description:
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DSI output port node to the panel or the next bridge
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in the chain.
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required:
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- clock-names
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- clocks
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- compatible
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- interrupts
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- reg
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- samsung,burst-clock-frequency
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- samsung,esc-clock-frequency
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- samsung,pll-clock-frequency
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allOf:
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- $ref: ../dsi-controller.yaml#
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- if:
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properties:
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compatible:
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contains:
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const: samsung,exynos5433-mipi-dsi
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then:
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properties:
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clocks:
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minItems: 5
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clock-names:
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items:
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- const: bus_clk
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- const: phyclk_mipidphy0_bitclkdiv8
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- const: phyclk_mipidphy0_rxclkesc0
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- const: sclk_rgb_vclk_to_dsim0
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- const: sclk_mipi
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ports:
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required:
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- port@0
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required:
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- ports
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- vddcore-supply
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- vddio-supply
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- if:
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properties:
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compatible:
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contains:
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const: samsung,exynos5410-mipi-dsi
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then:
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properties:
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clocks:
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minItems: 2
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clock-names:
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items:
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- const: bus_clk
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- const: pll_clk
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required:
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- vddcore-supply
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- vddio-supply
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- if:
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properties:
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compatible:
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contains:
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const: samsung,exynos4210-mipi-dsi
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then:
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properties:
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clocks:
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minItems: 2
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clock-names:
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items:
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- const: bus_clk
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- const: sclk_mipi
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required:
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- vddcore-supply
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- vddio-supply
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- if:
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properties:
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compatible:
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contains:
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const: samsung,exynos3250-mipi-dsi
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then:
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properties:
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clocks:
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minItems: 2
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clock-names:
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items:
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- const: bus_clk
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- const: pll_clk
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required:
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- vddcore-supply
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- vddio-supply
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- samsung,phy-type
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additionalProperties:
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type: object
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examples:
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- |
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#include <dt-bindings/clock/exynos5433.h>
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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dsi@13900000 {
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compatible = "samsung,exynos5433-mipi-dsi";
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reg = <0x13900000 0xC0>;
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interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
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phys = <&mipi_phy 1>;
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phy-names = "dsim";
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clocks = <&cmu_disp CLK_PCLK_DSIM0>,
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<&cmu_disp CLK_PHYCLK_MIPIDPHY0_BITCLKDIV8>,
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<&cmu_disp CLK_PHYCLK_MIPIDPHY0_RXCLKESC0>,
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<&cmu_disp CLK_SCLK_RGB_VCLK_TO_DSIM0>,
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<&cmu_disp CLK_SCLK_DSIM0>;
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clock-names = "bus_clk",
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"phyclk_mipidphy0_bitclkdiv8",
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"phyclk_mipidphy0_rxclkesc0",
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"sclk_rgb_vclk_to_dsim0",
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"sclk_mipi";
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power-domains = <&pd_disp>;
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vddcore-supply = <&ldo6_reg>;
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vddio-supply = <&ldo7_reg>;
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samsung,burst-clock-frequency = <512000000>;
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samsung,esc-clock-frequency = <16000000>;
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samsung,pll-clock-frequency = <24000000>;
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pinctrl-names = "default";
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pinctrl-0 = <&te_irq>;
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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dsi_to_mic: endpoint {
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remote-endpoint = <&mic_to_dsi>;
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};
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};
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};
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};
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@ -1,92 +0,0 @@
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Exynos MIPI DSI Master
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Required properties:
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- compatible: value should be one of the following
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"samsung,exynos3250-mipi-dsi" /* for Exynos3250/3472 SoCs */
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"samsung,exynos4210-mipi-dsi" /* for Exynos4 SoCs */
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"samsung,exynos5410-mipi-dsi" /* for Exynos5410/5420/5440 SoCs */
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"samsung,exynos5422-mipi-dsi" /* for Exynos5422/5800 SoCs */
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"samsung,exynos5433-mipi-dsi" /* for Exynos5433 SoCs */
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"fsl,imx8mm-mipi-dsim" /* for i.MX8M Mini/Nano SoCs */
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"fsl,imx8mp-mipi-dsim" /* for i.MX8M Plus SoCs */
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- reg: physical base address and length of the registers set for the device
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- interrupts: should contain DSI interrupt
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- clocks: list of clock specifiers, must contain an entry for each required
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entry in clock-names
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- clock-names: should include "bus_clk"and "sclk_mipi" entries
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the use of "pll_clk" is deprecated
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- phys: list of phy specifiers, must contain an entry for each required
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entry in phy-names
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- phy-names: should include "dsim" entry
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- vddcore-supply: MIPI DSIM Core voltage supply (e.g. 1.1V)
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- vddio-supply: MIPI DSIM I/O and PLL voltage supply (e.g. 1.8V)
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- samsung,pll-clock-frequency: specifies frequency of the oscillator clock
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- #address-cells, #size-cells: should be set respectively to <1> and <0>
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according to DSI host bindings (see MIPI DSI bindings [1])
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- samsung,burst-clock-frequency: specifies DSI frequency in high-speed burst
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mode
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- samsung,esc-clock-frequency: specifies DSI frequency in escape mode
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Optional properties:
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- power-domains: a phandle to DSIM power domain node
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Child nodes:
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Should contain DSI peripheral nodes (see MIPI DSI bindings [1]).
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Video interfaces:
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Device node can contain following video interface port nodes according to [2]:
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0: RGB input,
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1: DSI output
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[1]: Documentation/devicetree/bindings/display/mipi-dsi-bus.txt
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[2]: Documentation/devicetree/bindings/media/video-interfaces.txt
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Example:
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dsi@11c80000 {
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compatible = "samsung,exynos4210-mipi-dsi";
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reg = <0x11C80000 0x10000>;
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interrupts = <0 79 0>;
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clocks = <&clock 286>, <&clock 143>;
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clock-names = "bus_clk", "sclk_mipi";
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phys = <&mipi_phy 1>;
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phy-names = "dsim";
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vddcore-supply = <&vusb_reg>;
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vddio-supply = <&vmipi_reg>;
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power-domains = <&pd_lcd0>;
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#address-cells = <1>;
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#size-cells = <0>;
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samsung,pll-clock-frequency = <24000000>;
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panel@1 {
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reg = <0>;
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...
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port {
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panel_ep: endpoint {
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remote-endpoint = <&dsi_ep>;
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};
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};
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};
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ports {
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#address-cells = <1>;
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#size-cells = <0>;
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port@0 {
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reg = <0>;
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decon_to_mic: endpoint {
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remote-endpoint = <&mic_to_decon>;
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};
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};
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port@1 {
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reg = <1>;
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dsi_ep: endpoint {
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reg = <0>;
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samsung,burst-clock-frequency = <500000000>;
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samsung,esc-clock-frequency = <20000000>;
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remote-endpoint = <&panel_ep>;
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};
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};
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};
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};
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@ -6630,6 +6630,7 @@ M: Jagan Teki <jagan@amarulasolutions.com>
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M: Marek Szyprowski <m.szyprowski@samsung.com>
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M: Marek Szyprowski <m.szyprowski@samsung.com>
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S: Maintained
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S: Maintained
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T: git git://anongit.freedesktop.org/drm/drm-misc
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T: git git://anongit.freedesktop.org/drm/drm-misc
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F: Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml
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F: drivers/gpu/drm/bridge/samsung-dsim.c
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F: drivers/gpu/drm/bridge/samsung-dsim.c
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F: include/drm/bridge/samsung-dsim.h
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F: include/drm/bridge/samsung-dsim.h
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