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 <p.marczak@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested on sandbox:
Tested-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Przemyslaw Marczak 2015-05-13 13:38:35 +02:00 committed by Simon Glass
parent f64000c302
commit 9038cd5313
4 changed files with 123 additions and 0 deletions

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@ -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"

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@ -0,0 +1,78 @@
/*
* Sandbox PMIC dts node
*
* Copyright (C) 2015 Samsung Electronics
* Przemyslaw Marczak <p.marczak@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <dt-bindings/pmic/sandbox_pmic.h>
&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>;
};
};

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@ -139,6 +139,10 @@
sandbox,size = <256>;
};
};
sandbox_pmic: sandbox_pmic {
reg = <0x40>;
};
};
pci: pci-controller {
@ -228,3 +232,5 @@
};
};
#include "sandbox_pmic.dtsi"

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@ -0,0 +1,35 @@
/*
* Copyright (C) 2015 Samsung Electronics
* Przemyslaw Marczak <p.marczak@samsung.com>
*
* 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