Unverified Commit 531fdbee authored by Samuel Holland's avatar Samuel Holland Committed by Maxime Ripard
Browse files

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: default avatarSamuel Holland <samuel@sholland.org>
Acked-by: default avatarMaxime Ripard <mripard@kernel.org>
Signed-off-by: default avatarMaxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210103100007.32867-5-samuel@sholland.org
parent a4bb294c

arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts

+19 −19
Original line number Diff line number Diff line
@@ -150,12 +150,28 @@ &pio { 
	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 @@ sw { 
	};

};



&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>;

};

arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts

+7 −7
Original line number Diff line number Diff line
@@ -175,12 +175,16 @@ &pio { 
	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 @@ sw { 
	};

};



&r_ir {

	status = "okay";

};



&rtc {

	clocks = <&ext_osc32k>;

};

arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi

+11 −11
Original line number Diff line number Diff line
@@ -112,12 +112,20 @@ &pio { 
	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 @@ sw { 
	};

};



&r_ir {

	status = "okay";

};



&r_pio {

	vcc-pm-supply = <&reg_bldo3>;

};



&rtc {

	clocks = <&ext_osc32k>;

};