From: Chen-Yu Tsai <wens@csie.org>
To: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: devicetree@vger.kernel.org,
Sergey Matyukevich <geomatsi@gmail.com>,
Andre Przywara <andre.przywara@arm.com>,
Chen-Yu Tsai <wens@csie.org>,
linux-kernel@vger.kernel.org, Emmanuel Vadot <manu@freebsd.org>,
linux-sunxi@googlegroups.com,
Jagan Teki <jagan@amarulasolutions.com>,
Hauke Mehrtens <hauke@hauke-m.de>,
linux-arm-kernel@lists.infradead.org,
Icenowy Zheng <icenowy@aosc.io>
Subject: [PATCH 02/10] ARM: dts: bananapi-m2-plus: Add CPU supply regulator
Date: Wed, 30 Jan 2019 16:41:55 +0800 [thread overview]
Message-ID: <20190130084203.25053-3-wens@csie.org> (raw)
In-Reply-To: <20190130084203.25053-1-wens@csie.org>
The original Bananapi M2+ uses a fixed regulator to supply the CPU
cores. According to Bananapi, the retail v1.1 version is designed to
supply 1.3V. Actual measurements show 1.310V. Earlier engineering
samples had it at 1.4V, but this is not covered here.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
.../boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi | 30 +++++++------------
arch/arm/boot/dts/sunxi-bananapi-m2-plus.dtsi | 14 +++++++++
2 files changed, 25 insertions(+), 19 deletions(-)
diff --git a/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi b/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi
index a567567763f4..39834329b6ae 100644
--- a/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi
+++ b/arch/arm/boot/dts/sunxi-bananapi-m2-plus-v1.2.dtsi
@@ -5,27 +5,19 @@
#include "sunxi-bananapi-m2-plus.dtsi"
-/ {
+®_vdd_cpux {
/*
* Bananapi M2+ v1.2 uses a GPIO line to change the effective
* resistance on the CPU regulator's feedback pin.
*/
- reg_vdd_cpux: vdd-cpux {
- compatible = "regulator-gpio";
- regulator-name = "vdd-cpux";
- regulator-type = "voltage";
- regulator-boot-on;
- regulator-always-on;
- regulator-min-microvolt = <1108475>;
- regulator-max-microvolt = <1308475>;
- regulator-ramp-delay = <50>; /* 4ms */
- gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL1 */
- gpios-states = <0x1>;
- states = <1108475 0x0
- 1308475 0x1>;
- };
-};
-
-&cpu0 {
- cpu-supply = <®_vdd_cpux>;
+ compatible = "regulator-gpio";
+ regulator-type = "voltage";
+ regulator-min-microvolt = <1108475>;
+ regulator-max-microvolt = <1308475>;
+ regulator-ramp-delay = <50>; /* 4ms */
+ enable-gpios = <&r_pio 0 8 GPIO_ACTIVE_HIGH>; /* PL8 */
+ gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; /* PL1 */
+ gpios-states = <0x1>;
+ states = <1108475 0x0
+ 1308475 0x1>;
};
diff --git a/arch/arm/boot/dts/sunxi-bananapi-m2-plus.dtsi b/arch/arm/boot/dts/sunxi-bananapi-m2-plus.dtsi
index 3bed375b9c03..eb90f53ae958 100644
--- a/arch/arm/boot/dts/sunxi-bananapi-m2-plus.dtsi
+++ b/arch/arm/boot/dts/sunxi-bananapi-m2-plus.dtsi
@@ -99,6 +99,16 @@
gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>;
};
+ reg_vdd_cpux: vdd-cpux {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd-cpux";
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-min-microvolt = <1310000>;
+ regulator-max-microvolt = <1310000>;
+ gpios = <&r_pio 0 8 GPIO_ACTIVE_HIGH>; /* PL8 */
+ };
+
wifi_pwrseq: wifi_pwrseq {
compatible = "mmc-pwrseq-simple";
pinctrl-names = "default";
@@ -108,6 +118,10 @@
};
};
+&cpu0 {
+ cpu-supply = <®_vdd_cpux>;
+};
+
&de {
status = "okay";
};
--
2.20.1
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next prev parent reply other threads:[~2019-01-30 8:42 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-30 8:41 [PATCH 00/10] arm64: dts: allwinner: h5: Enable CPU DVFS (cpufreq) Chen-Yu Tsai
2019-01-30 8:41 ` [PATCH 01/10] ARM: dts: sunxi: bananapi-m2-plus-v1.2: Fix CPU supply voltages Chen-Yu Tsai
2019-01-30 8:41 ` Chen-Yu Tsai [this message]
2019-01-30 8:41 ` [PATCH 03/10] arm64: dts: allwinner: h5: Hook up cpu regulator supplies Chen-Yu Tsai
2019-01-30 8:41 ` [PATCH 04/10] arm64: dts: allwinner: h5: nanopi-neo2: Add CPU regulator supply Chen-Yu Tsai
2019-01-30 8:41 ` [PATCH 05/10] arm64: dts: allwinner: h5: orange-pi-zero-plus: " Chen-Yu Tsai
2019-01-30 8:41 ` [PATCH 06/10] arm64: dts: allwinner: h5: orange-pi-zero-plus2: " Chen-Yu Tsai
2019-01-30 8:42 ` [PATCH 07/10] arm64: dts: allwinner: h5: orange-pi-pc2: " Chen-Yu Tsai
2019-01-30 8:42 ` [PATCH 08/10] arm64: dts: allwinner: h5: orange-pi-prime: " Chen-Yu Tsai
2019-01-30 8:42 ` [PATCH 09/10] arm64: dts: allwinner: h5: Add clock to CPU cores Chen-Yu Tsai
2019-01-30 8:42 ` [PATCH 10/10] arm64: dts: allwinner: h5: Add CPU Operating Performance Points table Chen-Yu Tsai
2019-01-30 9:29 ` Maxime Ripard
2019-01-30 9:41 ` Chen-Yu Tsai
2019-01-30 9:59 ` Maxime Ripard
2019-01-31 3:28 ` Chen-Yu Tsai
2019-09-02 14:03 ` [PATCH 00/10] arm64: dts: allwinner: h5: Enable CPU DVFS (cpufreq) Ondřej Jirman
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