linux-kernel - [PATCH 2/2] dt-bindings: i2c: exynos5: add exynos-usi-hsi2c compatible

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Date:   Mon,  1 Nov 2021 20:38:19 +0900
From:   Jaewon Kim <jaewon02.kim@...sung.com>
To:     Wolfram Sang <wsa@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Chanho Park <chanho61.park@...sung.com>, linux-i2c@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jaewon Kim <jaewon02.kim@...sung.com>
Subject: [PATCH 2/2] dt-bindings: i2c: exynos5: add exynos-usi-hsi2c
 compatible

This patch adds new "samsung,exynos-usi-hsi2c" compatible.
It is for i2c compatible with HSI2C available on Exynos SoC with USI.

Signed-off-by: Jaewon Kim <jaewon02.kim@...sung.com>
---
 Documentation/devicetree/bindings/i2c/i2c-exynos5.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-exynos5.txt b/Documentation/devicetree/bindings/i2c/i2c-exynos5.txt
index 2dbc0b62daa6..ce2373c7a357 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-exynos5.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-exynos5.txt
@@ -14,6 +14,8 @@ Required properties:
 				on Exynos5260 SoCs.
 	-> "samsung,exynos7-hsi2c", for i2c compatible with HSI2C available
 				on Exynos7 SoCs.
+	-> "samsung,exynos-usi-hsi2c", for i2c compatible with HSI2C available
+				on Exynos SoCs with USI.
 
   - reg: physical base address of the controller and length of memory mapped
     region.
@@ -31,6 +33,8 @@ Optional properties:
        at 100khz.
     -> If specified, the bus operates in high-speed mode only if the
        clock-frequency is >= 1Mhz.
+  - samsung,usi-sysreg : sysreg handle to control USI type.
+    -> sysreg phandle for "samsung,exynos-usi-hsic" compatible.
 
 Example:
 
@@ -46,6 +50,8 @@ hsi2c@...a0000 {
 	#address-cells = <1>;
 	#size-cells = <0>;
 
+	samsung,usi-sysreg = <&usi_sysreg 0x28>;
+
 	s2mps11_pmic@66 {
 		compatible = "samsung,s2mps11-pmic";
 		reg = <0x66>;
-- 
2.33.1