arm64: dts: allwinner: h6: Use RSB for AXP805 PMIC connection

On boards where the only peripheral connected to PL0/PL1 is an X-Powers
PMIC, configure the connection to use the RSB bus rather than the I2C
bus. Compared to the I2C controller that shares the pins, the RSB
controller allows a higher bus frequency, and it is more CPU-efficient.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210103100007.32867-5-samuel@sholland.org

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
index c42b2ab..669d39f 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
@@ -150,12 +150,28 @@
        vcc-pg-supply = <&reg_aldo1>;
 };
 
-&r_i2c {
+&r_ir {
+       linux,rc-map-name = "rc-beelink-gs1";
+       status = "okay";
+};
+
+&r_pio {
+       /*
+        * FIXME: We can't add that supply for now since it would
+        * create a circular dependency between pinctrl, the regulator
+        * and the RSB Bus.
+        *
+        * vcc-pl-supply = <&reg_aldo1>;
+        */
+       vcc-pm-supply = <&reg_aldo1>;
+};
+
+&r_rsb {
        status = "okay";
 
-       axp805: pmic@36 {
+       axp805: pmic@745 {
                compatible = "x-powers,axp805", "x-powers,axp806";
-               reg = <0x36>;
+               reg = <0x745>;
                interrupt-parent = <&r_intc>;
                interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_LOW>;
                interrupt-controller;
@@ -273,22 +289,6 @@
        };
 };
 
-&r_ir {
-       linux,rc-map-name = "rc-beelink-gs1";
-       status = "okay";
-};
-
-&r_pio {
-       /*
-        * PL0 and PL1 are used for PMIC I2C
-        * don't enable the pl-supply else
-        * it will fail at boot
-        *
-        * vcc-pl-supply = <&reg_aldo1>;
-        */
-       vcc-pm-supply = <&reg_aldo1>;
-};
-
 &rtc {
        clocks = <&ext_osc32k>;
 };

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
index 1933964..c45d7b7 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts
@@ -175,12 +175,16 @@
        vcc-pg-supply = <&reg_vcc_wifi_io>;
 };
 
-&r_i2c {
+&r_ir {
+       status = "okay";
+};
+
+&r_rsb {
        status = "okay";
 
-       axp805: pmic@36 {
+       axp805: pmic@745 {
                compatible = "x-powers,axp805", "x-powers,axp806";
-               reg = <0x36>;
+               reg = <0x745>;
                interrupt-parent = <&r_intc>;
                interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_LOW>;
                interrupt-controller;
@@ -291,10 +295,6 @@
        };
 };
 
-&r_ir {
-       status = "okay";
-};
-
 &rtc {
        clocks = <&ext_osc32k>;
 };

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
index 4ec4996..9274512 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
@@ -112,12 +112,20 @@
        vcc-pg-supply = <&reg_aldo1>;
 };
 
-&r_i2c {
+&r_ir {
+       status = "okay";
+};
+
+&r_pio {
+       vcc-pm-supply = <&reg_bldo3>;
+};
+
+&r_rsb {
        status = "okay";
 
-       axp805: pmic@36 {
+       axp805: pmic@745 {
                compatible = "x-powers,axp805", "x-powers,axp806";
-               reg = <0x36>;
+               reg = <0x745>;
                interrupt-parent = <&r_intc>;
                interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_LOW>;
                interrupt-controller;
@@ -232,14 +240,6 @@
        };
 };
 
-&r_ir {
-       status = "okay";
-};
-
-&r_pio {
-       vcc-pm-supply = <&reg_bldo3>;
-};
-
 &rtc {
        clocks = <&ext_osc32k>;
 };