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linux/arch/arm/mach-omap2/omap_twl.c
Wolfram Sang a205425658 mfd: twl: Move header file out of I2C realm 
include/linux/i2c is not for client devices. Move the header file to a
more appropriate location.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-09-04 14:41:02 +01:00

255 lines
6.9 KiB
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/**
* OMAP and TWL PMIC specific initializations.
*
* Copyright (C) 2010 Texas Instruments Incorporated.
* Thara Gopinath
* Copyright (C) 2009 Texas Instruments Incorporated.
* Nishanth Menon
* Copyright (C) 2009 Nokia Corporation
* Paul Walmsley
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/err.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/mfd/twl.h>
#include "soc.h"
#include "voltage.h"
#include "pm.h"
#define OMAP3_SRI2C_SLAVE_ADDR 0x12
#define OMAP3_VDD_MPU_SR_CONTROL_REG 0x00
#define OMAP3_VDD_CORE_SR_CONTROL_REG 0x01
#define OMAP3_VP_CONFIG_ERROROFFSET 0x00
#define OMAP3_VP_VSTEPMIN_VSTEPMIN 0x1
#define OMAP3_VP_VSTEPMAX_VSTEPMAX 0x04
#define OMAP3_VP_VLIMITTO_TIMEOUT_US 200
#define OMAP4_SRI2C_SLAVE_ADDR 0x12
#define OMAP4_VDD_MPU_SR_VOLT_REG 0x55
#define OMAP4_VDD_MPU_SR_CMD_REG 0x56
#define OMAP4_VDD_IVA_SR_VOLT_REG 0x5B
#define OMAP4_VDD_IVA_SR_CMD_REG 0x5C
#define OMAP4_VDD_CORE_SR_VOLT_REG 0x61
#define OMAP4_VDD_CORE_SR_CMD_REG 0x62
#define OMAP4_VP_CONFIG_ERROROFFSET 0x00
#define OMAP4_VP_VSTEPMIN_VSTEPMIN 0x01
#define OMAP4_VP_VSTEPMAX_VSTEPMAX 0x04
#define OMAP4_VP_VLIMITTO_TIMEOUT_US 200
static bool is_offset_valid;
static u8 smps_offset;
#define REG_SMPS_OFFSET 0xE0
static unsigned long twl4030_vsel_to_uv(const u8 vsel)
{
return (((vsel * 125) + 6000)) * 100;
}
static u8 twl4030_uv_to_vsel(unsigned long uv)
{
return DIV_ROUND_UP(uv - 600000, 12500);
}
static unsigned long twl6030_vsel_to_uv(const u8 vsel)
{
/*
* In TWL6030 depending on the value of SMPS_OFFSET
* efuse register the voltage range supported in
* standard mode can be either between 0.6V - 1.3V or
* 0.7V - 1.4V. In TWL6030 ES1.0 SMPS_OFFSET efuse
* is programmed to all 0's where as starting from
* TWL6030 ES1.1 the efuse is programmed to 1
*/
if (!is_offset_valid) {
twl_i2c_read_u8(TWL6030_MODULE_ID0, &smps_offset,
REG_SMPS_OFFSET);
is_offset_valid = true;
}
if (!vsel)
return 0;
/*
* There is no specific formula for voltage to vsel
* conversion above 1.3V. There are special hardcoded
* values for voltages above 1.3V. Currently we are
* hardcoding only for 1.35 V which is used for 1GH OPP for
* OMAP4430.
*/
if (vsel == 0x3A)
return 1350000;
if (smps_offset & 0x8)
return ((((vsel - 1) * 1266) + 70900)) * 10;
else
return ((((vsel - 1) * 1266) + 60770)) * 10;
}
static u8 twl6030_uv_to_vsel(unsigned long uv)
{
/*
* In TWL6030 depending on the value of SMPS_OFFSET
* efuse register the voltage range supported in
* standard mode can be either between 0.6V - 1.3V or
* 0.7V - 1.4V. In TWL6030 ES1.0 SMPS_OFFSET efuse
* is programmed to all 0's where as starting from
* TWL6030 ES1.1 the efuse is programmed to 1
*/
if (!is_offset_valid) {
twl_i2c_read_u8(TWL6030_MODULE_ID0, &smps_offset,
REG_SMPS_OFFSET);
is_offset_valid = true;
}
if (!uv)
return 0x00;
/*
* There is no specific formula for voltage to vsel
* conversion above 1.3V. There are special hardcoded
* values for voltages above 1.3V. Currently we are
* hardcoding only for 1.35 V which is used for 1GH OPP for
* OMAP4430.
*/
if (uv > twl6030_vsel_to_uv(0x39)) {
if (uv == 1350000)
return 0x3A;
pr_err("%s:OUT OF RANGE! non mapped vsel for %ld Vs max %ld\n",
__func__, uv, twl6030_vsel_to_uv(0x39));
return 0x3A;
}
if (smps_offset & 0x8)
return DIV_ROUND_UP(uv - 709000, 12660) + 1;
else
return DIV_ROUND_UP(uv - 607700, 12660) + 1;
}
static struct omap_voltdm_pmic omap3_mpu_pmic = {
.slew_rate = 4000,
.step_size = 12500,
.vp_erroroffset = OMAP3_VP_CONFIG_ERROROFFSET,
.vp_vstepmin = OMAP3_VP_VSTEPMIN_VSTEPMIN,
.vp_vstepmax = OMAP3_VP_VSTEPMAX_VSTEPMAX,
.vddmin = 600000,
.vddmax = 1450000,
.vp_timeout_us = OMAP3_VP_VLIMITTO_TIMEOUT_US,
.i2c_slave_addr = OMAP3_SRI2C_SLAVE_ADDR,
.volt_reg_addr = OMAP3_VDD_MPU_SR_CONTROL_REG,
.i2c_high_speed = true,
.vsel_to_uv = twl4030_vsel_to_uv,
.uv_to_vsel = twl4030_uv_to_vsel,
};
static struct omap_voltdm_pmic omap3_core_pmic = {
.slew_rate = 4000,
.step_size = 12500,
.vp_erroroffset = OMAP3_VP_CONFIG_ERROROFFSET,
.vp_vstepmin = OMAP3_VP_VSTEPMIN_VSTEPMIN,
.vp_vstepmax = OMAP3_VP_VSTEPMAX_VSTEPMAX,
.vddmin = 600000,
.vddmax = 1450000,
.vp_timeout_us = OMAP3_VP_VLIMITTO_TIMEOUT_US,
.i2c_slave_addr = OMAP3_SRI2C_SLAVE_ADDR,
.volt_reg_addr = OMAP3_VDD_CORE_SR_CONTROL_REG,
.i2c_high_speed = true,
.vsel_to_uv = twl4030_vsel_to_uv,
.uv_to_vsel = twl4030_uv_to_vsel,
};
static struct omap_voltdm_pmic omap4_mpu_pmic = {
.slew_rate = 4000,
.step_size = 12660,
.vp_erroroffset = OMAP4_VP_CONFIG_ERROROFFSET,
.vp_vstepmin = OMAP4_VP_VSTEPMIN_VSTEPMIN,
.vp_vstepmax = OMAP4_VP_VSTEPMAX_VSTEPMAX,
.vddmin = 0,
.vddmax = 2100000,
.vp_timeout_us = OMAP4_VP_VLIMITTO_TIMEOUT_US,
.i2c_slave_addr = OMAP4_SRI2C_SLAVE_ADDR,
.volt_reg_addr = OMAP4_VDD_MPU_SR_VOLT_REG,
.cmd_reg_addr = OMAP4_VDD_MPU_SR_CMD_REG,
.i2c_high_speed = true,
.i2c_pad_load = 3,
.vsel_to_uv = twl6030_vsel_to_uv,
.uv_to_vsel = twl6030_uv_to_vsel,
};
static struct omap_voltdm_pmic omap4_iva_pmic = {
.slew_rate = 4000,
.step_size = 12660,
.vp_erroroffset = OMAP4_VP_CONFIG_ERROROFFSET,
.vp_vstepmin = OMAP4_VP_VSTEPMIN_VSTEPMIN,
.vp_vstepmax = OMAP4_VP_VSTEPMAX_VSTEPMAX,
.vddmin = 0,
.vddmax = 2100000,
.vp_timeout_us = OMAP4_VP_VLIMITTO_TIMEOUT_US,
.i2c_slave_addr = OMAP4_SRI2C_SLAVE_ADDR,
.volt_reg_addr = OMAP4_VDD_IVA_SR_VOLT_REG,
.cmd_reg_addr = OMAP4_VDD_IVA_SR_CMD_REG,
.i2c_high_speed = true,
.i2c_pad_load = 3,
.vsel_to_uv = twl6030_vsel_to_uv,
.uv_to_vsel = twl6030_uv_to_vsel,
};
static struct omap_voltdm_pmic omap4_core_pmic = {
.slew_rate = 4000,
.step_size = 12660,
.vp_erroroffset = OMAP4_VP_CONFIG_ERROROFFSET,
.vp_vstepmin = OMAP4_VP_VSTEPMIN_VSTEPMIN,
.vp_vstepmax = OMAP4_VP_VSTEPMAX_VSTEPMAX,
.vddmin = 0,
.vddmax = 2100000,
.vp_timeout_us = OMAP4_VP_VLIMITTO_TIMEOUT_US,
.i2c_slave_addr = OMAP4_SRI2C_SLAVE_ADDR,
.volt_reg_addr = OMAP4_VDD_CORE_SR_VOLT_REG,
.cmd_reg_addr = OMAP4_VDD_CORE_SR_CMD_REG,
.i2c_high_speed = true,
.i2c_pad_load = 3,
.vsel_to_uv = twl6030_vsel_to_uv,
.uv_to_vsel = twl6030_uv_to_vsel,
};
int __init omap4_twl_init(void)
{
struct voltagedomain *voltdm;
if (!cpu_is_omap44xx())
return -ENODEV;
voltdm = voltdm_lookup("mpu");
omap_voltage_register_pmic(voltdm, &omap4_mpu_pmic);
voltdm = voltdm_lookup("iva");
omap_voltage_register_pmic(voltdm, &omap4_iva_pmic);
voltdm = voltdm_lookup("core");
omap_voltage_register_pmic(voltdm, &omap4_core_pmic);
return 0;
}
int __init omap3_twl_init(void)
{
struct voltagedomain *voltdm;
if (!cpu_is_omap34xx())
return -ENODEV;
voltdm = voltdm_lookup("mpu_iva");
omap_voltage_register_pmic(voltdm, &omap3_mpu_pmic);
voltdm = voltdm_lookup("core");
omap_voltage_register_pmic(voltdm, &omap3_core_pmic);
return 0;
}
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