ARM: dts: sunxi: Add dtsi for AXP22x PMIC

The AXP22x family of PMIC is used with some Allwinner SoCs. This
includes the AXP221, AXP221s and AXP223. They differ in the host
interface, maximum supply current for DCDC1 regulator, and default
voltage and state for various LDO regulators. Also, the AXP221s
does not support fine calibration of the battery fuel gauge.

This patch adds a dtsi file for all the common bindings for these
PMICs. Currently this is just listing all the regulator nodes. The
regulators are initialized based on their device node names.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/arch/arm/boot/dts/axp22x.dtsi b/arch/arm/boot/dts/axp22x.dtsi
new file mode 100644 (file)
index 0000000..76302f5
--- /dev/null
+++ b/arch/arm/boot/dts/axp22x.dtsi
@@ -0,0 +1,143 @@
+/*
+ * Copyright 2015 Chen-Yu Tsai
+ *
+ * Chen-Yu Tsai <wens@csie.org>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This file is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * AXP221/221s/223 Integrated Power Management Chip
+ * http://www.x-powers.com/product/AXP22X.php
+ * http://dl.linux-sunxi.org/AXP/AXP221%20Datasheet%20V1.2%2020130326%20.pdf
+ */
+
+&axp22x {
+       interrupt-controller;
+       #interrupt-cells = <1>;
+
+       regulators {
+               /* Default work frequency for buck regulators */
+               x-powers,dcdc-freq = <3000>;
+
+               reg_dcdc1: dcdc1 {
+                       regulator-name = "dcdc1";
+               };
+
+               reg_dcdc2: dcdc2 {
+                       regulator-name = "dcdc2";
+               };
+
+               reg_dcdc3: dcdc3 {
+                       regulator-name = "dcdc3";
+               };
+
+               reg_dcdc4: dcdc4 {
+                       regulator-name = "dcdc4";
+               };
+
+               reg_dcdc5: dcdc5 {
+                       regulator-name = "dcdc5";
+               };
+
+               reg_dc1sw: dc1sw {
+                       regulator-name = "dc1sw";
+               };
+
+               reg_dc5ldo: dc5ldo {
+                       regulator-name = "dc5ldo";
+               };
+
+               reg_aldo1: aldo1 {
+                       regulator-name = "aldo1";
+               };
+
+               reg_aldo2: aldo2 {
+                       regulator-name = "aldo2";
+               };
+
+               reg_aldo3: aldo3 {
+                       regulator-name = "aldo3";
+               };
+
+               reg_dldo1: dldo1 {
+                       regulator-name = "dldo1";
+               };
+
+               reg_dldo2: dldo2 {
+                       regulator-name = "dldo2";
+               };
+
+               reg_dldo3: dldo3 {
+                       regulator-name = "dldo3";
+               };
+
+               reg_dldo4: dldo4 {
+                       regulator-name = "dldo4";
+               };
+
+               reg_eldo1: eldo1 {
+                       regulator-name = "eldo1";
+               };
+
+               reg_eldo2: eldo2 {
+                       regulator-name = "eldo2";
+               };
+
+               reg_eldo3: eldo3 {
+                       regulator-name = "eldo3";
+               };
+
+               reg_ldo_io0: ldo_io0 {
+                       regulator-name = "ldo_io0";
+               };
+
+               reg_ldo_io1: ldo_io1 {
+                       regulator-name = "ldo_io1";
+               };
+
+               reg_rtc_ldo: rtc_ldo {
+                       /* RTC_LDO is a fixed, always-on regulator */
+                       regulator-always-on;
+                       regulator-min-microvolt = <3000000>;
+                       regulator-max-microvolt = <3000000>;
+                       regulator-name = "rtc_ldo";
+               };
+       };
+};