[v2,2/5] arm64: renesas: draak: enable I2C controller 0 and EEPROM

Message ID 1517240748-14780-3-git-send-email-ulrich.hecht+renesas@gmail.com
State Awaiting Upstream
Headers show
Series
  • R-Car D3 (r8a77995) I2C integration
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Commit Message

Ulrich Hecht Jan. 29, 2018, 3:45 p.m.
Enables EEPROM on I2C0 on the Draak board.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm64/boot/dts/renesas/r8a77995-draak.dts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

Comments

Wolfram Sang Jan. 30, 2018, 10:43 a.m. | #1
On Mon, Jan 29, 2018 at 04:45:45PM +0100, Ulrich Hecht wrote:
> Enables EEPROM on I2C0 on the Draak board.
> 
> Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>

Patch

diff --git a/arch/arm64/boot/dts/renesas/r8a77995-draak.dts b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
index 09de73b..6ff9d3e 100644
--- a/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
+++ b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts
@@ -46,6 +46,11 @@ 
 		};
 	};
 
+	i2c0_pins: i2c0 {
+		groups = "i2c0";
+		function = "i2c0";
+	};
+
 	pwm0_pins: pwm0 {
 		groups = "pwm0_c";
 		function = "pwm0";
@@ -67,6 +72,18 @@ 
 	};
 };
 
+&i2c0 {
+	pinctrl-0 = <&i2c0_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	eeprom@50 {
+		compatible = "rohm,br24t01", "atmel,24c01";
+		reg = <0x50>;
+		pagesize = <8>;
+	};
+};
+
 &ehci0 {
 	status = "okay";
 };