linux-kernel - [PATCH v3 1/2] dt-bindings: i2c: exynos5: add exynosautov9-hsi2c compatible

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Date:   Fri, 12 Nov 2021 10:01:36 +0900
From:   Jaewon Kim <jaewon02.kim@...sung.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Wolfram Sang <wsa@...nel.org>, Rob Herring <robh+dt@...nel.org>
Cc:     linux-samsung-soc@...r.kernel.org, linux-i2c@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        chanho61.park@...sung.com, linux-arm-kernel@...ts.infradead.org,
        Sam Protsenko <semen.protsenko@...aro.org>,
        Jaewon Kim <jaewon02.kim@...sung.com>
Subject: [PATCH v3 1/2] dt-bindings: i2c: exynos5: add exynosautov9-hsi2c
 compatible

This patch adds new "samsung,exynosautov9-hsi2c" compatible.
It is for i2c compatible with HSI2C available on Exynos SoC with USI.

Signed-off-by: Jaewon Kim <jaewon02.kim@...sung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
---
 Documentation/devicetree/bindings/i2c/i2c-exynos5.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-exynos5.txt b/Documentation/devicetree/bindings/i2c/i2c-exynos5.txt
index 2dbc0b62daa6..39f4067d9d1f 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,exynosautov9-hsi2c", for i2c compatible with HSI2C available
+				on ExynosAutov9 SoCs.
 
   - reg: physical base address of the controller and length of memory mapped
     region.
@@ -31,6 +33,11 @@ Optional properties:
        at 100khz.
     -> If specified, the bus operates in high-speed mode only if the
        clock-frequency is >= 1Mhz.
+  - samsung,sysreg : system registers controller phandle to control USI.
+    -> If I2C integrated to USI(Universal Serial Interface), this property
+       is required. When using Exynos USI block, it needs to select which type
+       of Serial IPs(UART, SPI, I2C) to use with system register. So, it
+       requires samsung,sysreg phandle and offset value of system register.
 
 Example:
 
-- 
2.33.1