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Message-Id: <20240327225057.672304-4-shreeya.patel@collabora.com>
Date: Thu, 28 Mar 2024 04:20:54 +0530
From: Shreeya Patel <shreeya.patel@...labora.com>
To: heiko@...ech.de,
mchehab@...nel.org,
robh@...nel.org,
krzysztof.kozlowski+dt@...aro.org,
conor+dt@...nel.org,
mturquette@...libre.com,
sboyd@...nel.org,
p.zabel@...gutronix.de,
jose.abreu@...opsys.com,
nelson.costa@...opsys.com,
dmitry.osipenko@...labora.com,
sebastian.reichel@...labora.com,
shawn.wen@...k-chips.com,
nicolas.dufresne@...labora.com,
hverkuil@...all.nl,
hverkuil-cisco@...all.nl
Cc: kernel@...labora.com,
linux-kernel@...r.kernel.org,
linux-media@...r.kernel.org,
devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-rockchip@...ts.infradead.org,
linux-clk@...r.kernel.org,
linux-arm@...ts.infradead.org,
Shreeya Patel <shreeya.patel@...labora.com>
Subject: [PATCH v3 3/6] dt-bindings: media: Document HDMI RX Controller
Document bindings for the Synopsys DesignWare HDMI RX Controller.
Reviewed-by: Rob Herring <robh@...nel.org>
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>
Signed-off-by: Shreeya Patel <shreeya.patel@...labora.com>
---
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@...labora.com>
+
+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@...e0000 {
+ 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
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