* [PATCH v6 1/2] i2c: s3c2410: add Sysreg phandle to i2c device nodes
[not found] <1416818867-29156-1-git-send-email-pankaj.dubey@samsung.com>
@ 2014-11-24 8:47 ` Pankaj Dubey
2014-11-26 18:43 ` Kukjin Kim
0 siblings, 1 reply; 3+ messages in thread
From: Pankaj Dubey @ 2014-11-24 8:47 UTC (permalink / raw)
To: linux-arm-kernel, linux-samsung-soc
Cc: kgene.kim, tomasz.figa, thomas.ab, Pankaj Dubey, Rob Herring,
Randy Dunlap, Russell King, devicetree, linux-doc
This patch adds syscon based phandle to i2c device nodes of exynos5250
and exynos5420. These phandles will be used to save restore i2c sysreg
configuration register during s2r from i2c driver.
CC: Rob Herring <robh+dt@kernel.org>
CC: Randy Dunlap <rdunlap@infradead.org>
CC: Russell King <linux@arm.linux.org.uk>
CC: devicetree@vger.kernel.org
CC: linux-doc@vger.kernel.org
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
---
.../devicetree/bindings/i2c/i2c-s3c2410.txt | 1 +
arch/arm/boot/dts/exynos5250.dtsi | 4 ++++
arch/arm/boot/dts/exynos5420.dtsi | 4 ++++
3 files changed, 9 insertions(+)
diff --git a/Documentation/devicetree/bindings/i2c/i2c-s3c2410.txt b/Documentation/devicetree/bindings/i2c/i2c-s3c2410.txt
index 278de8e..89b3250 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-s3c2410.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-s3c2410.txt
@@ -32,6 +32,7 @@ Optional properties:
specified, default value is 0.
- samsung,i2c-max-bus-freq: Desired frequency in Hz of the bus. If not
specified, the default value in Hz is 100000.
+ - samsung,sysreg-phandle - handle to syscon used to control the system registers
Example:
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 0a588b4..d45a07e 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -293,6 +293,7 @@
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c0_bus>;
+ samsung,sysreg-phandle = <&sysreg_system_controller>;
status = "disabled";
};
@@ -306,6 +307,7 @@
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c1_bus>;
+ samsung,sysreg-phandle = <&sysreg_system_controller>;
status = "disabled";
};
@@ -319,6 +321,7 @@
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c2_bus>;
+ samsung,sysreg-phandle = <&sysreg_system_controller>;
status = "disabled";
};
@@ -332,6 +335,7 @@
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c3_bus>;
+ samsung,sysreg-phandle = <&sysreg_system_controller>;
status = "disabled";
};
diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index 8617a03..90bf401 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -560,6 +560,7 @@
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c0_bus>;
+ samsung,sysreg-phandle = <&sysreg_system_controller>;
status = "disabled";
};
@@ -573,6 +574,7 @@
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c1_bus>;
+ samsung,sysreg-phandle = <&sysreg_system_controller>;
status = "disabled";
};
@@ -586,6 +588,7 @@
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c2_bus>;
+ samsung,sysreg-phandle = <&sysreg_system_controller>;
status = "disabled";
};
@@ -599,6 +602,7 @@
clock-names = "i2c";
pinctrl-names = "default";
pinctrl-0 = <&i2c3_bus>;
+ samsung,sysreg-phandle = <&sysreg_system_controller>;
status = "disabled";
};
--
1.7.9.5
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