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Message-Id: <c7fd138e00608a108dae3651ab10d583a60040fc.1584730033.git.agx@sigxcpu.org>
Date: Fri, 20 Mar 2020 19:49:09 +0100
From: Guido Günther <agx@...xcpu.org>
To: David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
NXP Linux Team <linux-imx@....com>,
Andrzej Hajda <a.hajda@...sung.com>,
Neil Armstrong <narmstrong@...libre.com>,
Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
Jonas Karlman <jonas@...boo.se>,
Jernej Skrabec <jernej.skrabec@...l.net>,
Lee Jones <lee.jones@...aro.org>,
Guido Günther <agx@...xcpu.org>,
dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Robert Chiras <robert.chiras@....com>,
Sam Ravnborg <sam@...nborg.org>, Arnd Bergmann <arnd@...db.de>
Subject: [PATCH v10 1/2] dt-bindings: display/bridge: Add binding for NWL mipi dsi host controller
The Northwest Logic MIPI DSI IP core can be found in NXPs i.MX8 SoCs.
Signed-off-by: Guido Günther <agx@...xcpu.org>
Tested-by: Robert Chiras <robert.chiras@....com>
Reviewed-by: Rob Herring <robh@...nel.org>
Acked-by: Sam Ravnborg <sam@...nborg.org>
---
.../bindings/display/bridge/nwl-dsi.yaml | 216 ++++++++++++++++++
1 file changed, 216 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
diff --git a/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml b/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
new file mode 100644
index 000000000000..ec1e7e12719d
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml
@@ -0,0 +1,216 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/bridge/nwl-dsi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Northwest Logic MIPI-DSI controller on i.MX SoCs
+
+maintainers:
+ - Guido Gúnther <agx@...xcpu.org>
+ - Robert Chiras <robert.chiras@....com>
+
+description: |
+ NWL MIPI-DSI host controller found on i.MX8 platforms. This is a dsi bridge for
+ the SOCs NWL MIPI-DSI host controller.
+
+properties:
+ compatible:
+ const: fsl,imx8mq-nwl-dsi
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ clocks:
+ items:
+ - description: DSI core clock
+ - description: RX_ESC clock (used in escape mode)
+ - description: TX_ESC clock (used in escape mode)
+ - description: PHY_REF clock
+ - description: LCDIF clock
+
+ clock-names:
+ items:
+ - const: core
+ - const: rx_esc
+ - const: tx_esc
+ - const: phy_ref
+ - const: lcdif
+
+ mux-controls:
+ description:
+ mux controller node to use for operating the input mux
+
+ phys:
+ maxItems: 1
+ description:
+ A phandle to the phy module representing the DPHY
+
+ phy-names:
+ items:
+ - const: dphy
+
+ power-domains:
+ maxItems: 1
+
+ resets:
+ items:
+ - description: dsi byte reset line
+ - description: dsi dpi reset line
+ - description: dsi esc reset line
+ - description: dsi pclk reset line
+
+ reset-names:
+ items:
+ - const: byte
+ - const: dpi
+ - const: esc
+ - const: pclk
+
+ ports:
+ type: object
+ description:
+ A node containing DSI input & output port nodes with endpoint
+ definitions as documented in
+ Documentation/devicetree/bindings/graph.txt.
+ properties:
+ port@0:
+ type: object
+ description:
+ Input port node to receive pixel data from the
+ display controller. Exactly one endpoint must be
+ specified.
+ properties:
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ endpoint@0:
+ description: sub-node describing the input from LCDIF
+ type: object
+
+ endpoint@1:
+ description: sub-node describing the input from DCSS
+ type: object
+
+ reg:
+ const: 0
+
+ required:
+ - '#address-cells'
+ - '#size-cells'
+ - reg
+ additionalProperties: false
+
+ port@1:
+ type: object
+ description:
+ DSI output port node to the panel or the next bridge
+ in the chain
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ required:
+ - '#address-cells'
+ - '#size-cells'
+ - port@0
+ - port@1
+
+ additionalProperties: false
+
+patternProperties:
+ "^panel@[0-9]+$":
+ type: object
+
+required:
+ - '#address-cells'
+ - '#size-cells'
+ - clock-names
+ - clocks
+ - compatible
+ - interrupts
+ - mux-controls
+ - phy-names
+ - phys
+ - ports
+ - reg
+ - reset-names
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+
+ #include <dt-bindings/clock/imx8mq-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/reset/imx8mq-reset.h>
+
+ mipi_dsi: mipi_dsi@...00000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "fsl,imx8mq-nwl-dsi";
+ reg = <0x30A00000 0x300>;
+ clocks = <&clk IMX8MQ_CLK_DSI_CORE>,
+ <&clk IMX8MQ_CLK_DSI_AHB>,
+ <&clk IMX8MQ_CLK_DSI_IPG_DIV>,
+ <&clk IMX8MQ_CLK_DSI_PHY_REF>,
+ <&clk IMX8MQ_CLK_LCDIF_PIXEL>;
+ clock-names = "core", "rx_esc", "tx_esc", "phy_ref", "lcdif";
+ interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+ mux-controls = <&mux 0>;
+ power-domains = <&pgc_mipi>;
+ resets = <&src IMX8MQ_RESET_MIPI_DSI_RESET_BYTE_N>,
+ <&src IMX8MQ_RESET_MIPI_DSI_DPI_RESET_N>,
+ <&src IMX8MQ_RESET_MIPI_DSI_ESC_RESET_N>,
+ <&src IMX8MQ_RESET_MIPI_DSI_PCLK_RESET_N>;
+ reset-names = "byte", "dpi", "esc", "pclk";
+ phys = <&dphy>;
+ phy-names = "dphy";
+
+ panel@0 {
+ compatible = "rocktech,jh057n00900";
+ reg = <0>;
+ port@0 {
+ panel_in: endpoint {
+ remote-endpoint = <&mipi_dsi_out>;
+ };
+ };
+ };
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ #size-cells = <0>;
+ #address-cells = <1>;
+ reg = <0>;
+ mipi_dsi_in: endpoint@0 {
+ reg = <0>;
+ remote-endpoint = <&lcdif_mipi_dsi>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ mipi_dsi_out: endpoint {
+ remote-endpoint = <&panel_in>;
+ };
+ };
+ };
+ };
--
2.23.0
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