linux-kernel - [PATCH v2] ARM: mstar: Unify common parts of BreadBee boards into a dtsi

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Message-Id: <20201224020354.2212037-1-daniel@0x0f.com>
Date:   Thu, 24 Dec 2020 11:03:54 +0900
From:   Daniel Palmer <daniel@...f.com>
To:     soc@...nel.org, devicetree@...r.kernel.org
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        arnd@...db.de, olof@...om.net, w@....eu,
        Daniel Palmer <daniel@...f.com>
Subject: [PATCH v2] ARM: mstar: Unify common parts of BreadBee boards into a dtsi

The BreadBee and the BreadBee Crust are the same PCB with a different
SoC mounted. There are two top level dts to handle this.

To avoid deduplicating the parts that are more related to the PCB than
the SoC (i.e. the voltage regs and LEDs) add a common dtsi that can
be included in both top level dts.

Signed-off-by: Daniel Palmer <daniel@...f.com>
---
 .../dts/mstar-infinity-breadbee-common.dtsi   | 49 +++++++++++++++++++
 .../mstar-infinity-msc313-breadbee_crust.dts  |  1 +
 .../dts/mstar-infinity3-msc313e-breadbee.dts  |  1 +
 3 files changed, 51 insertions(+)
 create mode 100644 arch/arm/boot/dts/mstar-infinity-breadbee-common.dtsi

diff --git a/arch/arm/boot/dts/mstar-infinity-breadbee-common.dtsi b/arch/arm/boot/dts/mstar-infinity-breadbee-common.dtsi
new file mode 100644
index 000000000000..507ff2fba837
--- /dev/null
+++ b/arch/arm/boot/dts/mstar-infinity-breadbee-common.dtsi
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2020 thingy.jp.
+ * Author: Daniel Palmer <daniel@...ngy.jp>
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	vcc_core: fixedregulator@0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_core";
+		regulator-min-microvolt = <1000000>;
+		regulator-max-microvolt = <1000000>;
+		regulator-boot-on;
+	};
+
+	vcc_dram: fixedregulator@1 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_dram";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-boot-on;
+	};
+
+	vcc_io: fixedregulator@2 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_io";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		red {
+			gpios = <&gpio MSC313_GPIO_SR_IO16 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "activity";
+		};
+		yellow {
+			gpios = <&gpio MSC313_GPIO_SR_IO17 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+};
+
+&cpu0 {
+	cpu-supply = <&vcc_core>;
+};
diff --git a/arch/arm/boot/dts/mstar-infinity-msc313-breadbee_crust.dts b/arch/arm/boot/dts/mstar-infinity-msc313-breadbee_crust.dts
index f9db2ff86f2d..db4910dcb8a7 100644
--- a/arch/arm/boot/dts/mstar-infinity-msc313-breadbee_crust.dts
+++ b/arch/arm/boot/dts/mstar-infinity-msc313-breadbee_crust.dts
@@ -6,6 +6,7 @@
 
 /dts-v1/;
 #include "mstar-infinity-msc313.dtsi"
+#include "mstar-infinity-breadbee-common.dtsi"
 
 / {
 	model = "BreadBee Crust";
diff --git a/arch/arm/boot/dts/mstar-infinity3-msc313e-breadbee.dts b/arch/arm/boot/dts/mstar-infinity3-msc313e-breadbee.dts
index f0eda80a95cc..e64ca4ce1830 100644
--- a/arch/arm/boot/dts/mstar-infinity3-msc313e-breadbee.dts
+++ b/arch/arm/boot/dts/mstar-infinity3-msc313e-breadbee.dts
@@ -6,6 +6,7 @@
 
 /dts-v1/;
 #include "mstar-infinity3-msc313e.dtsi"
+#include "mstar-infinity-breadbee-common.dtsi"
 
 / {
 	model = "BreadBee";
-- 
2.29.2