From 9038cd531382e94cc6d4daa9e81f70491030aa38 Mon Sep 17 00:00:00 2001 From: Przemyslaw Marczak Date: Wed, 13 May 2015 13:38:35 +0200 Subject: [PATCH] sandbox: dts: add sandbox_pmic.dtsi and include it to sandbox.dts and test.dts This commit adds dtsi file for Sandbox PMIC. It fully describes the PMIC by: - i2c emul node - with a default settings of 16 registers - 2x buck regulator nodes - 2x ldo regulator nodes The default register settings are set with preprocessor macros: - VAL2REG(min[uV/uA], step[uV/uA], val[uV/uA]) - VAL2OMREG(mode id) Both defined in file: - include/dt-bindings/pmic/sandbox_pmic.h The Voltage ranges of each regulator can be found in: - include/power/sandbox_pmic.h The new file is included into: - sandbox.dts - test.dts Signed-off-by: Przemyslaw Marczak Acked-by: Simon Glass Tested on sandbox: Tested-by: Simon Glass --- arch/sandbox/dts/sandbox.dts | 4 ++ arch/sandbox/dts/sandbox_pmic.dtsi | 78 +++++++++++++++++++++++++ arch/sandbox/dts/test.dts | 6 ++ include/dt-bindings/pmic/sandbox_pmic.h | 35 +++++++++++ 4 files changed, 123 insertions(+) create mode 100644 arch/sandbox/dts/sandbox_pmic.dtsi create mode 100644 include/dt-bindings/pmic/sandbox_pmic.h diff --git a/arch/sandbox/dts/sandbox.dts b/arch/sandbox/dts/sandbox.dts index 99b0f362ae..a3ebd80dd8 100644 --- a/arch/sandbox/dts/sandbox.dts +++ b/arch/sandbox/dts/sandbox.dts @@ -115,6 +115,9 @@ compatible = "sandbox,i2c-rtc"; }; }; + sandbox_pmic: sandbox_pmic { + reg = <0x40>; + }; }; spi@0 { @@ -205,3 +208,4 @@ }; #include "cros-ec-keyboard.dtsi" +#include "sandbox_pmic.dtsi" diff --git a/arch/sandbox/dts/sandbox_pmic.dtsi b/arch/sandbox/dts/sandbox_pmic.dtsi new file mode 100644 index 0000000000..44a26b18ca --- /dev/null +++ b/arch/sandbox/dts/sandbox_pmic.dtsi @@ -0,0 +1,78 @@ +/* + * Sandbox PMIC dts node + * + * Copyright (C) 2015 Samsung Electronics + * Przemyslaw Marczak + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include + +&sandbox_pmic { + compatible = "sandbox,pmic"; + + pmic_emul { + compatible = "sandbox,i2c-pmic"; + + /* + * Default PMICs register values are set by macro + * VAL2REG(min, step, value) [uV/uA] + * VAL2OMREG(mode id) + * reg-defaults - byte array + */ + reg-defaults = /bits/ 8 < + /* BUCK1 */ + VAL2REG(800000, 25000, 1000000) + VAL2REG(150000, 25000, 150000) + VAL2OMREG(BUCK_OM_OFF) + /* BUCK2 */ + VAL2REG(750000, 50000, 3000000) + VAL2REG(150000, 25000, 150000) + VAL2OMREG(0) + /* LDO1 */ + VAL2REG(800000, 25000, 1600000) + VAL2REG(100000, 50000, 150000) + VAL2OMREG(LDO_OM_OFF) + /* LDO2 */ + VAL2REG(750000, 50000, 3000000) + VAL2REG(150000, 25000, 150000) + VAL2OMREG(0) + /* reg[12:15] - not used */ + 0x00 + 0x00 + 0x00 + 0x00 + >; + }; + + buck1 { + regulator-name = "SUPPLY_1.2V"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + regulator-min-microamp = <200000>; + regulator-max-microamp = <200000>; + regulator-always-on; + }; + + buck2 { + regulator-name = "SUPPLY_3.3V"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + + ldo1 { + regulator-name = "VDD_EMMC_1.8V"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-min-microamp = <100000>; + regulator-max-microamp = <100000>; + regulator-boot-on; + }; + + ldo2 { + regulator-name = "VDD_LCD_3.3V"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; +}; diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index d0c40be6b0..1bc3ca0770 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -139,6 +139,10 @@ sandbox,size = <256>; }; }; + + sandbox_pmic: sandbox_pmic { + reg = <0x40>; + }; }; pci: pci-controller { @@ -228,3 +232,5 @@ }; }; + +#include "sandbox_pmic.dtsi" diff --git a/include/dt-bindings/pmic/sandbox_pmic.h b/include/dt-bindings/pmic/sandbox_pmic.h new file mode 100644 index 0000000000..c3d839bf01 --- /dev/null +++ b/include/dt-bindings/pmic/sandbox_pmic.h @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2015 Samsung Electronics + * Przemyslaw Marczak + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _DT_BINDINGS_SANDBOX_PMIC_H_ +#define _DT_BINDINGS_SANDBOX_PMIC_H_ + +/* + * Sandbox PMIC - prepare reset values + * To provide the default (reset) values as in the real hardware, + * the registers are set in i2c pmic emul driver's probe() method. + * The default values are defined as below. + */ + +/* Buck operation mode IDs */ +#define BUCK_OM_OFF 0 +#define BUCK_OM_ON 1 +#define BUCK_OM_PWM 2 +#define BUCK_OM_COUNT 3 + +/* Ldo operation mode IDs */ +#define LDO_OM_OFF 0 +#define LDO_OM_ON 1 +#define LDO_OM_SLEEP 2 +#define LDO_OM_STANDBY 3 +#define LDO_OM_COUNT 4 + +/* [Value uV/uA]/[Mode ID] to register */ +#define VAL2REG(min, step, val) (((val) - (min)) / (step)) +#define VAL2OMREG(x) (x) + +#endif -- 2.39.5