ARM: dts: sun8i: Add Reduced Serial Bus controller device node to A23/A33 dtsi

This patch adds a device node for the Reduced Serial Bus (RSB)
controller and the defacto pinmux setting to the A23/A33 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/sun8i-a23-a33.dtsi b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
index 04bccad977eefcff2b7af355eafdfd2449dee34e..828aaf52c34270756df35d95fe01f9a81b60a7fd 100644 (file)
--- a/arch/arm/boot/dts/sun8i-a23-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
@@ -651,6 +651,13 @@
                        #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";
@@ -658,5 +665,19 @@
                                allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
                        };
                };
+
+               r_rsb: rsb@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>;
+               };
        };
 };