diff mbox

[v2,2/2] arm64: dts: renesas: eagle: add I2C0 support

Message ID f830570f-f7e7-b277-172a-360a20de1aaf@cogentembedded.com (mailing list archive)
State Changes Requested
Delegated to: Simon Horman
Headers show

Commit Message

Sergei Shtylyov Feb. 26, 2018, 8:55 p.m. UTC 
Define the Eagle board dependent part of the I2C0 device node.

The I2C0 bus is populated by ON Semiconductor PCA9653 I/O expander and
Analog Devices ADV7511W HDMI transmitter (but we're only describing the
former chip now).

Based on the original (and large) patch by Vladimir Barinov.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

---
Changes in version 2:
- resolved rejects (with the patch adding EtherAVB pins removed for now).

 arch/arm64/boot/dts/renesas/r8a77970-eagle.dts |   20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

Comments

Geert Uytterhoeven Feb. 28, 2018, 10:52 a.m. UTC | #1 
On Mon, Feb 26, 2018 at 9:55 PM, Sergei Shtylyov
<sergei.shtylyov@cogentembedded.com> wrote:
> Define the Eagle board dependent part of the I2C0 device node.
>
> The I2C0 bus is populated by ON Semiconductor PCA9653 I/O expander and
> Analog Devices ADV7511W HDMI transmitter (but we're only describing the
> former chip now).
>
> Based on the original (and large) patch by Vladimir Barinov.
>
> Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

(lost)
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
diff mbox

Patch

Index: renesas/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
===================================================================
--- renesas.orig/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
+++ renesas/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts
@@ -54,7 +54,27 @@ 
 	clock-frequency = <32768>;
 };
 
+&i2c0 {
+	pinctrl-0 = <&i2c0_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+	clock-frequency = <400000>;
+
+	io_expander: gpio@20 {
+		compatible = "onnn,pca9654";
+		reg = <0x20>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+};
+
 &pfc {
+	i2c0_pins: i2c0 {
+		groups = "i2c0";
+		function = "i2c0";
+	};
+
 	scif0_pins: scif0 {
 		groups = "scif0_data";
 		function = "scif0";