ARM: dts: sun9i: Add Reduced Serial Bus controller device node to A80 dtsi

This patch adds a device node for the Reduced Serial Bus (RSB)
controller and the defacto pinmux setting to the A80 dtsi.

Since there is only one possible pinmux setting for RSB, just
set it in the dtsi.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/arch/arm/boot/dts/sun9i-a80.dtsi b/arch/arm/boot/dts/sun9i-a80.dtsi
index 80777a33ee782a6083aa1f41e192cbe9625c24c3..dc666c69f6abafb245d060a355de71d91a38cdff 100644 (file)
--- a/arch/arm/boot/dts/sun9i-a80.dtsi
+++ b/arch/arm/boot/dts/sun9i-a80.dtsi
@@ -900,6 +900,27 @@
                                allwinner,drive = <SUN4I_PINCTRL_10_MA>;
                                allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
                        };
+
+                       r_rsb_pins: r_rsb {
+                               allwinner,pins = "PN0", "PN1";
+                               allwinner,function = "s_rsb";
+                               allwinner,drive = <SUN4I_PINCTRL_20_MA>;
+                               allwinner,pull = <SUN4I_PINCTRL_PULL_UP>;
+                       };
+               };
+
+               r_rsb: i2c@08003400 {
+                       compatible = "allwinner,sun8i-a23-rsb";
+                       reg = <0x08003400 0x400>;
+                       interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&apbs_gates 3>;
+                       clock-frequency = <3000000>;
+                       resets = <&apbs_rst 3>;
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&r_rsb_pins>;
+                       status = "disabled";
+                       #address-cells = <1>;
+                       #size-cells = <0>;
                };
        };
 };