Document bindings for the Synopsys DesignWare HDMI RX Controller. Reviewed-by: Rob Herring <robh@xxxxxxxxxx> Reviewed-by: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx> Signed-off-by: Shreeya Patel <shreeya.patel@xxxxxxxxxxxxx> --- Changes in v4 :- - No change Changes in v3 :- - Rename hdmirx_cma to hdmi_receiver_cma - Add a Reviewed-by tag Changes in v2 :- - Add a description for the hardware - Rename resets, vo1 grf and HPD properties - Add a proper description for grf and vo1-grf phandles - Rename the HDMI Input node name to hdmi-receiver - Improve the subject line - Include gpio header file in example to fix dt_binding_check failure .../bindings/media/snps,dw-hdmi-rx.yaml | 132 ++++++++++++++++++ 1 file changed, 132 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.yaml diff --git a/Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.yaml b/Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.yaml new file mode 100644 index 000000000000..96ae1e2d2816 --- /dev/null +++ b/Documentation/devicetree/bindings/media/snps,dw-hdmi-rx.yaml @@ -0,0 +1,132 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Device Tree bindings for Synopsys DesignWare HDMI RX Controller + +--- +$id: http://devicetree.org/schemas/media/snps,dw-hdmi-rx.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Synopsys DesignWare HDMI RX Controller + +maintainers: + - Shreeya Patel <shreeya.patel@xxxxxxxxxxxxx> + +description: + Synopsys DesignWare HDMI Input Controller preset on RK3588 SoCs + allowing devices to receive and decode high-resolution video streams + from external sources like media players, cameras, laptops, etc. + +properties: + compatible: + items: + - const: rockchip,rk3588-hdmirx-ctrler + - const: snps,dw-hdmi-rx + + reg: + maxItems: 1 + + interrupts: + maxItems: 3 + + interrupt-names: + items: + - const: cec + - const: hdmi + - const: dma + + clocks: + maxItems: 7 + + clock-names: + items: + - const: aclk + - const: audio + - const: cr_para + - const: pclk + - const: ref + - const: hclk_s_hdmirx + - const: hclk_vo1 + + power-domains: + maxItems: 1 + + resets: + maxItems: 4 + + reset-names: + items: + - const: axi + - const: apb + - const: ref + - const: biu + + memory-region: + maxItems: 1 + + hpd-gpios: + description: GPIO specifier for HPD. + maxItems: 1 + + rockchip,grf: + $ref: /schemas/types.yaml#/definitions/phandle + description: + The phandle of the syscon node for the general register file + containing HDMIRX PHY status bits. + + rockchip,vo1-grf: + $ref: /schemas/types.yaml#/definitions/phandle + description: + The phandle of the syscon node for the Video Output GRF register + to enable EDID transfer through SDAIN and SCLIN. + +required: + - compatible + - reg + - interrupts + - interrupt-names + - clocks + - clock-names + - power-domains + - resets + - pinctrl-0 + - hpd-gpios + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/rockchip,rk3588-cru.h> + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/power/rk3588-power.h> + #include <dt-bindings/reset/rockchip,rk3588-cru.h> + hdmi_receiver: hdmi-receiver@fdee0000 { + compatible = "rockchip,rk3588-hdmirx-ctrler", "snps,dw-hdmi-rx"; + reg = <0xfdee0000 0x6000>; + interrupts = <GIC_SPI 177 IRQ_TYPE_LEVEL_HIGH 0>, + <GIC_SPI 436 IRQ_TYPE_LEVEL_HIGH 0>, + <GIC_SPI 179 IRQ_TYPE_LEVEL_HIGH 0>; + interrupt-names = "cec", "hdmi", "dma"; + clocks = <&cru ACLK_HDMIRX>, + <&cru CLK_HDMIRX_AUD>, + <&cru CLK_CR_PARA>, + <&cru PCLK_HDMIRX>, + <&cru CLK_HDMIRX_REF>, + <&cru PCLK_S_HDMIRX>, + <&cru HCLK_VO1>; + clock-names = "aclk", + "audio", + "cr_para", + "pclk", + "ref", + "hclk_s_hdmirx", + "hclk_vo1"; + power-domains = <&power RK3588_PD_VO1>; + resets = <&cru SRST_A_HDMIRX>, <&cru SRST_P_HDMIRX>, + <&cru SRST_HDMIRX_REF>, <&cru SRST_A_HDMIRX_BIU>; + reset-names = "axi", "apb", "ref", "biu"; + memory-region = <&hdmi_receiver_cma>; + pinctrl-0 = <&hdmim1_rx_cec &hdmim1_rx_hpdin &hdmim1_rx_scl &hdmim1_rx_sda &hdmirx_5v_detection>; + pinctrl-names = "default"; + hpd-gpios = <&gpio1 22 GPIO_ACTIVE_LOW>; + }; -- 2.39.2
