This patch adds a device node for the Reduced Serial Bus (RSB)
controller and the defacto pinmux setting to the A23 dtsi.
Since there is only one possible pinmux setting for RSB, just
set it in the dtsi.
Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx>
---
arch/arm/boot/dts/sun8i-a23.dtsi | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/arch/arm/boot/dts/sun8i-a23.dtsi b/arch/arm/boot/dts/sun8i-a23.dtsi
index 382ebd137ee4..fd9b4c811a5f 100644
--- a/arch/arm/boot/dts/sun8i-a23.dtsi
+++ b/arch/arm/boot/dts/sun8i-a23.dtsi
@@ -600,6 +600,13 @@
#size-cells = <0>;
#gpio-cells = <3>;
+ r_rsb_pins: r_rsb {
+ allwinner,pins = "PL0", "PL1";
+ allwinner,function = "s_rsb";
+ allwinner,drive = <SUN4I_PINCTRL_20_MA>;
+ allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+ };
+
r_uart_pins_a: r_uart@0 {
allwinner,pins = "PL2", "PL3";
allwinner,function = "s_uart";
@@ -607,5 +614,19 @@
allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
};
};
+
+ r_rsb: i2c@01f03400 {
+ compatible = "allwinner,sun8i-a23-rsb";
+ reg = <0x01f03400 0x400>;
+ interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&apb0_gates 3>;
+ clock-frequency = <3000000>;
+ resets = <&apb0_rst 3>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&r_rsb_pins>;
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
};
};
--
2.1.4
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