linux-kernel - [PATCH v2 4/4] arm64: dts: allwinner: h6: Use RSB for AXP805 PMIC connection

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Message-Id: <20210103100007.32867-5-samuel@sholland.org>
Date:   Sun,  3 Jan 2021 04:00:07 -0600
From:   Samuel Holland <samuel@...lland.org>
To:     Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Rob Herring <robh+dt@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Philipp Zabel <p.zabel@...gutronix.de>
Cc:     Andre Przywara <andre.przywara@....com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-clk@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com,
        Samuel Holland <samuel@...lland.org>
Subject: [PATCH v2 4/4] 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@...lland.org>
---
 .../dts/allwinner/sun50i-h6-beelink-gs1.dts   | 38 +++++++++----------
 .../dts/allwinner/sun50i-h6-orangepi-3.dts    | 14 +++----
 .../dts/allwinner/sun50i-h6-orangepi.dtsi     | 22 +++++------
 3 files changed, 37 insertions(+), 37 deletions(-)

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 7c9dbde645b5..3452add30cc4 100644
--- 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 @@ &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 = <0 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>;
 };
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 15c9dd8c4479..16702293ac0b 100644
--- 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 @@ &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 = <0 IRQ_TYPE_LEVEL_LOW>;
 		interrupt-controller;
@@ -291,10 +295,6 @@ sw {
 	};
 };
 
-&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 ebc120a9232f..23e3cb2ffd8d 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi.dtsi
@@ -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 = <0 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>;
 };
-- 
2.26.2