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Message-Id: <20220620034533.4108170-3-victor.liu@nxp.com>
Date: Mon, 20 Jun 2022 11:45:32 +0800
From: Liu Ying <victor.liu@....com>
To: linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: kishon@...com, vkoul@...nel.org, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, shawnguo@...nel.org,
s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
linux-imx@....com, krzysztof.kozlowski@...aro.org
Subject: [PATCH v2 2/3] dt-bindings: phy: Add Freescale i.MX8qm Mixel LVDS PHY binding
Add bindings for Mixel LVDS PHY found on Freescale i.MX8qm SoC.
Signed-off-by: Liu Ying <victor.liu@....com>
---
v1->v2:
* Set fsl,imx8qm-lvds-phy' and 'mixel,lvds-phy' as compatible's enum. (Krzysztof)
* Skip 'clock-names' property. (Krzysztof)
* Drop 'This patch' from commit message. (Krzysztof)
.../bindings/phy/mixel,lvds-phy.yaml | 61 +++++++++++++++++++
1 file changed, 61 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/mixel,lvds-phy.yaml
diff --git a/Documentation/devicetree/bindings/phy/mixel,lvds-phy.yaml b/Documentation/devicetree/bindings/phy/mixel,lvds-phy.yaml
new file mode 100644
index 000000000000..4bfcc0dd987f
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/mixel,lvds-phy.yaml
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/mixel,lvds-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mixel LVDS PHY for Freescale i.MX8qm SoC
+
+maintainers:
+ - Liu Ying <victor.liu@....com>
+
+description: |
+ The Mixel LVDS PHY IP block is found on Freescale i.MX8qm SoC.
+ It converts two groups of four 7/10 bits of CMOS data into two
+ groups of four data lanes of LVDS data streams. A phase-locked
+ transmit clock is transmitted in parallel with each group of
+ data streams over a fifth LVDS link. Every cycle of the transmit
+ clock, 56/80 bits of input data are sampled and transmitted
+ through the two groups of LVDS data streams. Together with the
+ transmit clocks, the two groups of LVDS data streams form two
+ LVDS channels.
+
+ The Mixel LVDS PHY found on Freescale i.MX8qm SoC is controlled
+ by Control and Status Registers(CSR) module in the SoC. The CSR
+ module, as a system controller, contains the PHY's registers.
+
+properties:
+ compatible:
+ enum:
+ - fsl,imx8qm-lvds-phy
+ - mixel,lvds-phy
+
+ "#phy-cells":
+ const: 1
+ description: |
+ Cell allows setting the LVDS channel index of the PHY.
+ Index 0 is for LVDS channel0 and index 1 is for LVDS channel1.
+
+ clocks:
+ maxItems: 1
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - "#phy-cells"
+ - clocks
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/firmware/imx/rsrc.h>
+ phy {
+ compatible = "fsl,imx8qm-lvds-phy";
+ #phy-cells = <1>;
+ clocks = <&clk IMX_SC_R_LVDS_0 IMX_SC_PM_CLK_PHY>;
+ power-domains = <&pd IMX_SC_R_LVDS_0>;
+ };
--
2.25.1
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