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Message-Id: <20220208171823.226211-9-krzysztof.kozlowski@canonical.com>
Date: Tue, 8 Feb 2022 18:18:21 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To: Inki Dae <inki.dae@...sung.com>,
Joonyoung Shim <jy0922.shim@...sung.com>,
Seung-Woo Kim <sw0312.kim@...sung.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
Alim Akhtar <alim.akhtar@...sung.com>,
Kishon Vijay Abraham I <kishon@...com>,
Vinod Koul <vkoul@...nel.org>, dri-devel@...ts.freedesktop.org,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-phy@...ts.infradead.org
Cc: Marek Szyprowski <m.szyprowski@...sung.com>,
Sylwester Nawrocki <snawrocki@...nel.org>
Subject: [PATCH 08/10] dt-bindings: display: samsung,exynos-hdmi: convert to dtschema
Convert the Exynos HDMI bindings to DT schema format.
The conversion includes also updates to the bindings, matching the
current DTS and Linux driver:
1. Add required properties: VDD supplies, power-domains.
2. Add optional properties: HDMI-EN supply, ports.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
---
.../bindings/display/exynos/exynos_hdmi.txt | 64 -----
.../display/samsung/samsung,exynos-hdmi.yaml | 227 ++++++++++++++++++
2 files changed, 227 insertions(+), 64 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
create mode 100644 Documentation/devicetree/bindings/display/samsung/samsung,exynos-hdmi.yaml
diff --git a/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt b/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
deleted file mode 100644
index 58b12e25bbb1..000000000000
--- a/Documentation/devicetree/bindings/display/exynos/exynos_hdmi.txt
+++ /dev/null
@@ -1,64 +0,0 @@
-Device-Tree bindings for drm hdmi driver
-
-Required properties:
-- compatible: value should be one among the following:
- 1) "samsung,exynos4210-hdmi"
- 2) "samsung,exynos4212-hdmi"
- 3) "samsung,exynos5420-hdmi"
- 4) "samsung,exynos5433-hdmi"
-- reg: physical base address of the hdmi and length of memory mapped
- region.
-- interrupts: interrupt number to the cpu.
-- hpd-gpios: following information about the hotplug gpio pin.
- a) phandle of the gpio controller node.
- b) pin number within the gpio controller.
- c) optional flags and pull up/down.
-- ddc: phandle to the hdmi ddc node
-- phy: phandle to the hdmi phy node
-- samsung,syscon-phandle: phandle for system controller node for PMU.
-- #sound-dai-cells: should be 0.
-
-Required properties for Exynos 4210, 4212, 5420 and 5433:
-- clocks: list of clock IDs from SoC clock driver.
- a) hdmi: Gate of HDMI IP bus clock.
- b) sclk_hdmi: Gate of HDMI special clock.
- c) sclk_pixel: Pixel special clock, one of the two possible inputs of
- HDMI clock mux.
- d) sclk_hdmiphy: HDMI PHY clock output, one of two possible inputs of
- HDMI clock mux.
- e) mout_hdmi: It is required by the driver to switch between the 2
- parents i.e. sclk_pixel and sclk_hdmiphy. If hdmiphy is stable
- after configuration, parent is set to sclk_hdmiphy else
- sclk_pixel.
-- clock-names: aliases as per driver requirements for above clock IDs:
- "hdmi", "sclk_hdmi", "sclk_pixel", "sclk_hdmiphy" and "mout_hdmi".
-
-Required properties for Exynos 5433:
-- clocks: list of clock specifiers according to common clock bindings.
- a) hdmi_pclk: Gate of HDMI IP APB bus.
- b) hdmi_i_pclk: Gate of HDMI-PHY IP APB bus.
- d) i_tmds_clk: Gate of HDMI TMDS clock.
- e) i_pixel_clk: Gate of HDMI pixel clock.
- f) i_spdif_clk: Gate of HDMI SPDIF clock.
- g) oscclk: Oscillator clock, used as parent of following *_user clocks
- in case HDMI-PHY is not operational.
- h) tmds_clko: TMDS clock generated by HDMI-PHY.
- i) tmds_clko_user: MUX used to switch between oscclk and tmds_clko,
- respectively if HDMI-PHY is off and operational.
- j) pixel_clko: Pixel clock generated by HDMI-PHY.
- k) pixel_clko_user: MUX used to switch between oscclk and pixel_clko,
- respectively if HDMI-PHY is off and operational.
-- clock-names: aliases for above clock specfiers.
-- samsung,sysreg: handle to syscon used to control the system registers.
-
-Example:
-
- hdmi {
- compatible = "samsung,exynos4212-hdmi";
- reg = <0x14530000 0x100000>;
- interrupts = <0 95 0>;
- hpd-gpios = <&gpx3 7 1>;
- ddc = <&hdmi_ddc_node>;
- phy = <&hdmi_phy_node>;
- samsung,syscon-phandle = <&pmu_system_controller>;
- };
diff --git a/Documentation/devicetree/bindings/display/samsung/samsung,exynos-hdmi.yaml b/Documentation/devicetree/bindings/display/samsung/samsung,exynos-hdmi.yaml
new file mode 100644
index 000000000000..cb8e735ce3bd
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/samsung/samsung,exynos-hdmi.yaml
@@ -0,0 +1,227 @@
+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/samsung/samsung,exynos-hdmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos SoC HDMI
+
+maintainers:
+ - Inki Dae <inki.dae@...sung.com>
+ - Joonyoung Shim <jy0922.shim@...sung.com>
+ - Seung-Woo Kim <sw0312.kim@...sung.com>
+ - Kyungmin Park <kyungmin.park@...sung.com>
+ - Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
+
+properties:
+ compatible:
+ enum:
+ - samsung,exynos4210-hdmi
+ - samsung,exynos4212-hdmi
+ - samsung,exynos5420-hdmi
+ - samsung,exynos5433-hdmi
+
+ clocks:
+ minItems: 5
+ maxItems: 10
+
+ clock-names:
+ minItems: 5
+ maxItems: 10
+
+ ddc:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to the HDMI DDC node.
+
+ hdmi-en-supply:
+ description:
+ Provides voltage source for DCC lines available on HDMI connector. When
+ there is no power provided for DDC epprom, some TV-sets do not pulls up
+ HPD (hot plug detect) line, what causes HDMI block to stay turned off.
+ When provided, the regulator allows TV-set correctly signal HPD event.
+
+ hpd-gpios:
+ maxItems: 1
+ description:
+ A GPIO line connected to HPD
+
+ interrupts:
+ maxItems: 1
+
+ phy:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: Phandle to the HDMI PHY node.
+
+ 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,syscon-phandle:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to the PMU system controller node.
+
+ samsung,sysreg-phandle:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to DISP system controller interface.
+
+ '#sound-dai-cells':
+ const: 0
+
+ vdd-supply:
+ description:
+ VDD 1.0V HDMI TX.
+
+ vdd_osc-supply:
+ description:
+ VDD 1.8V HDMI OSC.
+
+ vdd_pll-supply:
+ description:
+ VDD 1.0V HDMI PLL.
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+ - ddc
+ - hpd-gpios
+ - interrupts
+ - phy
+ - reg
+ - samsung,syscon-phandle
+ - '#sound-dai-cells'
+ - vdd-supply
+ - vdd_osc-supply
+ - vdd_pll-supply
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: samsung,exynos5433-hdmi
+ then:
+ properties:
+ clocks:
+ items:
+ - description: Gate of HDMI IP APB bus.
+ - description: Gate of HDMI-PHY IP APB bus.
+ - description: Gate of HDMI TMDS clock.
+ - description: Gate of HDMI pixel clock.
+ - description: TMDS clock generated by HDMI-PHY.
+ - description: MUX used to switch between oscclk and tmds_clko,
+ respectively if HDMI-PHY is off and operational.
+ - description: Pixel clock generated by HDMI-PHY.
+ - description: MUX used to switch between oscclk and pixel_clko,
+ respectively if HDMI-PHY is off and operational.
+ - description: Oscillator clock, used as parent of following *_user
+ clocks in case HDMI-PHY is not operational.
+ - description: Gate of HDMI SPDIF clock.
+ clock-names:
+ items:
+ - const: hdmi_pclk
+ - const: hdmi_i_pclk
+ - const: i_tmds_clk
+ - const: i_pixel_clk
+ - const: tmds_clko
+ - const: tmds_clko_user
+ - const: pixel_clko
+ - const: pixel_clko_user
+ - const: oscclk
+ - const: i_spdif_clk
+ required:
+ - samsung,sysreg-phandle
+ else:
+ properties:
+ clocks:
+ items:
+ - description: Gate of HDMI IP bus clock.
+ - description: Gate of HDMI special clock.
+ - description: Pixel special clock, one of the two possible inputs
+ of HDMI clock mux.
+ - description: HDMI PHY clock output, one of two possible inputs of
+ HDMI clock mux.
+ - description: It is required by the driver to switch between the 2
+ parents i.e. sclk_pixel and sclk_hdmiphy. If hdmiphy is stable
+ after configuration, parent is set to sclk_hdmiphy else
+ sclk_pixel.
+ clock-names:
+ items:
+ - const: hdmi
+ - const: sclk_hdmi
+ - const: sclk_pixel
+ - const: sclk_hdmiphy
+ - const: mout_hdmi
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/exynos5433.h>
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ hdmi@...70000 {
+ compatible = "samsung,exynos5433-hdmi";
+ reg = <0x13970000 0x70000>;
+ interrupts = <GIC_SPI 208 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cmu_disp CLK_PCLK_HDMI>,
+ <&cmu_disp CLK_PCLK_HDMIPHY>,
+ <&cmu_disp CLK_PHYCLK_HDMIPHY_TMDS_CLKO>,
+ <&cmu_disp CLK_PHYCLK_HDMI_PIXEL>,
+ <&cmu_disp CLK_PHYCLK_HDMIPHY_TMDS_CLKO_PHY>,
+ <&cmu_disp CLK_MOUT_PHYCLK_HDMIPHY_TMDS_CLKO_USER>,
+ <&cmu_disp CLK_PHYCLK_HDMIPHY_PIXEL_CLKO_PHY>,
+ <&cmu_disp CLK_MOUT_PHYCLK_HDMIPHY_PIXEL_CLKO_USER>,
+ <&xxti>,
+ <&cmu_disp CLK_SCLK_HDMI_SPDIF>;
+ clock-names = "hdmi_pclk",
+ "hdmi_i_pclk",
+ "i_tmds_clk",
+ "i_pixel_clk",
+ "tmds_clko",
+ "tmds_clko_user",
+ "pixel_clko",
+ "pixel_clko_user",
+ "oscclk",
+ "i_spdif_clk";
+ phy = <&hdmiphy>;
+ ddc = <&hsi2c_11>;
+ samsung,syscon-phandle = <&pmu_system_controller>;
+ samsung,sysreg-phandle = <&syscon_disp>;
+ #sound-dai-cells = <0>;
+
+ hpd-gpios = <&gpa3 0 GPIO_ACTIVE_HIGH>;
+ vdd-supply = <&ldo6_reg>;
+ vdd_osc-supply = <&ldo7_reg>;
+ vdd_pll-supply = <&ldo6_reg>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ hdmi_to_tv: endpoint {
+ remote-endpoint = <&tv_to_hdmi>;
+ };
+ };
+
+ port@1 {
+ reg = <1>;
+ hdmi_to_mhl: endpoint {
+ remote-endpoint = <&mhl_to_hdmi>;
+ };
+ };
+ };
+ };
--
2.32.0
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