diff options
Diffstat (limited to 'arch/arm/mach-mx6/mx6q_hdmidongle_pmic_wm831x.c')
| -rw-r--r-- | arch/arm/mach-mx6/mx6q_hdmidongle_pmic_wm831x.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/arch/arm/mach-mx6/mx6q_hdmidongle_pmic_wm831x.c b/arch/arm/mach-mx6/mx6q_hdmidongle_pmic_wm831x.c new file mode 100644 index 000000000000..86e13a46c364 --- /dev/null +++ b/arch/arm/mach-mx6/mx6q_hdmidongle_pmic_wm831x.c @@ -0,0 +1,201 @@ +/* + * Copyright (C) 2012 Freescale Semiconductor, Inc. All Rights Reserved. + * + * This program 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 program 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/gpio.h> +#include <linux/regulator/machine.h> +#include <linux/io.h> + +#ifdef CONFIG_MFD_WM831X +#include <linux/mfd/wm831x/core.h> +#include <linux/mfd/wm831x/pdata.h> +#include <linux/mfd/wm831x/regulator.h> +#include <linux/mfd/wm831x/gpio.h> +#include <linux/mfd/wm831x/status.h> +#include <mach/system.h> + +extern u32 enable_ldo_mode; + +#ifdef CONFIG_MX6_INTER_LDO_BYPASS +/* 1.3, 1.3 1.5 */ +#define WM831X_DC1_ON_CONFIG_VAL (0x40<<WM831X_DC1_ON_VSEL_SHIFT) +#define WM831X_DC2_ON_CONFIG_VAL (0x40<<WM831X_DC2_ON_VSEL_SHIFT) +#define WM831X_DC3_ON_CONFIG_VAL (0x1A<<WM831X_DC3_ON_VSEL_SHIFT) +#else +/* 1.375, 1.375. 1.5 */ + +#define WM831X_DC1_ON_CONFIG_VAL (0x44<<WM831X_DC1_ON_VSEL_SHIFT) +#define WM831X_DC2_ON_CONFIG_VAL (0x44<<WM831X_DC2_ON_VSEL_SHIFT) +#define WM831X_DC3_ON_CONFIG_VAL (0x1A<<WM831X_DC3_ON_VSEL_SHIFT) + +#endif + +#define WM831X_DC1_DVS_MODE_VAL (0x02<<WM831X_DC1_DVS_SRC_SHIFT) +#define WM831X_DC2_DVS_MODE_VAL (0x02<<WM831X_DC2_DVS_SRC_SHIFT) + +#define WM831X_DC1_DVS_CONTROL_VAL (0x20<<WM831X_DC1_DVS_VSEL_SHIFT) +#define WM831X_DC2_DVS_CONTROL_VAL (0x20<<WM831X_DC2_DVS_VSEL_SHIFT) + +#define WM831X_DC1_DVS_MASK (WM831X_DC1_DVS_SRC_MASK|WM831X_DC1_DVS_VSEL_MASK) +#define WM831X_DC2_DVS_MASK (WM831X_DC2_DVS_SRC_MASK|WM831X_DC1_DVS_VSEL_MASK) + +#define WM831X_DC1_DVS_VAL (WM831X_DC1_DVS_MODE_VAL|WM831X_DC1_DVS_CONTROL_VAL) +#define WM831X_DC2_DVS_VAL (WM831X_DC2_DVS_MODE_VAL|WM831X_DC2_DVS_CONTROL_VAL) + +#define WM831X_GPN_FN_VAL_HW_EN (0x0A<<WM831X_GPN_FN_SHIFT) +#define WM831X_GPN_FN_VAL_HW_CTL (0x0C<<WM831X_GPN_FN_SHIFT) +#define WM831X_GPN_FN_VAL_DVS1 (0x08<<WM831X_GPN_FN_SHIFT) + +#define WM831X_GPN_DIR_VAL (0x1<<WM831X_GPN_DIR_SHIFT) +#define WM831X_GPN_PULL_VAL (0x3<<WM831X_GPN_PULL_SHIFT) +#define WM831X_GPN_INT_MODE_VAL (0x1<<WM831X_GPN_INT_MODE_SHIFT) +#define WM831X_GPN_POL_VAL (0x1<<WM831X_GPN_POL_SHIFT) +#define WM831X_GPN_ENA_VAL (0x1<<WM831X_GPN_ENA_SHIFT) + +#define WM831X_GPIO7_8_9_MASK (WM831X_GPN_DIR_MASK|WM831X_GPN_INT_MODE_MASK| \ + WM831X_GPN_PULL_MASK|WM831X_GPN_POL_MASK|WM831X_GPN_FN_MASK) + + +#define WM831X_GPIO7_VAL (WM831X_GPN_DIR_VAL|WM831X_GPN_PULL_VAL|WM831X_GPN_INT_MODE_VAL| \ + WM831X_GPN_POL_VAL|WM831X_GPN_ENA_VAL|WM831X_GPN_FN_VAL_HW_EN) +#define WM831X_GPIO8_VAL (WM831X_GPN_DIR_VAL|WM831X_GPN_PULL_VAL|WM831X_GPN_INT_MODE_VAL| \ + WM831X_GPN_POL_VAL|WM831X_GPN_ENA_VAL|WM831X_GPN_FN_VAL_HW_CTL) +#define WM831X_GPIO9_VAL (WM831X_GPN_DIR_VAL|WM831X_GPN_PULL_VAL|WM831X_GPN_INT_MODE_VAL| \ + WM831X_GPN_POL_VAL|WM831X_GPN_ENA_VAL|WM831X_GPN_FN_VAL_DVS1) + +#define WM831X_STATUS_LED_ON (0x1 << WM831X_LED_SRC_SHIFT) +#define WM831X_STATUS_LED_OFF (0x0 << WM831X_LED_SRC_SHIFT) + +static int wm8326_post_init(struct wm831x *wm831x) +{ + wm831x_set_bits(wm831x, WM831X_DC1_ON_CONFIG, WM831X_DC1_ON_VSEL_MASK, WM831X_DC1_ON_CONFIG_VAL); + wm831x_set_bits(wm831x, WM831X_DC2_ON_CONFIG, WM831X_DC2_ON_VSEL_MASK, WM831X_DC2_ON_CONFIG_VAL); + wm831x_set_bits(wm831x, WM831X_DC3_ON_CONFIG, WM831X_DC3_ON_VSEL_MASK, WM831X_DC3_ON_CONFIG_VAL); + + wm831x_set_bits(wm831x, WM831X_DC1_DVS_CONTROL, WM831X_DC1_DVS_MASK, WM831X_DC1_DVS_VAL); + wm831x_set_bits(wm831x, WM831X_DC2_DVS_CONTROL, WM831X_DC2_DVS_MASK, WM831X_DC2_DVS_VAL); + + wm831x_set_bits(wm831x, WM831X_GPIO7_CONTROL, WM831X_GPIO7_8_9_MASK, WM831X_GPIO7_VAL); + wm831x_set_bits(wm831x, WM831X_GPIO8_CONTROL, WM831X_GPIO7_8_9_MASK, WM831X_GPIO8_VAL); + wm831x_set_bits(wm831x, WM831X_GPIO9_CONTROL, WM831X_GPIO7_8_9_MASK, WM831X_GPIO9_VAL); + + wm831x_set_bits(wm831x, WM831X_STATUS_LED_1 , WM831X_LED_SRC_MASK, WM831X_STATUS_LED_OFF); + wm831x_set_bits(wm831x, WM831X_STATUS_LED_2 , WM831X_LED_SRC_MASK, WM831X_STATUS_LED_ON); + +#ifdef CONFIG_MX6_INTER_LDO_BYPASS + if (enable_ldo_mode == LDO_MODE_DEFAULT) + enable_ldo_mode = LDO_MODE_BYPASSED; +#endif + return 0; +} + +#ifdef CONFIG_REGULATOR +/* ARM core */ +#ifdef CONFIG_MX6_INTER_LDO_BYPASS +static struct regulator_consumer_supply hdmidongle_vddarm_consumers[] = { + { + .supply = "VDDCORE_DCDC1", + } +}; + +static struct regulator_consumer_supply hdmidongle_vddsoc_consumers[] = { + { + .supply = "VDDSOC_DCDC2", + } +}; +#endif + +static struct regulator_init_data hdmidongle_vddarm_dcdc1 = { + .constraints = { + .name = "vdd_arm", + .min_uV = 100000, + .max_uV = 1500000, + .min_uA = 0, + .max_uA = 4000000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .valid_modes_mask = 0, + .always_on = 1, + .boot_on = 1, + }, +#ifdef CONFIG_MX6_INTER_LDO_BYPASS + .num_consumer_supplies = ARRAY_SIZE(hdmidongle_vddarm_consumers), + .consumer_supplies = hdmidongle_vddarm_consumers, +#endif +}; + + +static struct regulator_init_data hdmidongle_vddsoc_dcdc2 = { + .constraints = { + .name = "vdd_soc", + .min_uV = 100000, + .max_uV = 1500000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .valid_modes_mask = 0, + .always_on = 1, + .boot_on = 1, + }, +#ifdef CONFIG_MX6_INTER_LDO_BYPASS + .num_consumer_supplies = ARRAY_SIZE(hdmidongle_vddsoc_consumers), + .consumer_supplies = hdmidongle_vddsoc_consumers, +#endif +}; + + + +static struct regulator_init_data hdmidongle_vddmem_1v5_dcdc3 = { + .constraints = { + .name = "vdd_mem_1v5", + .min_uV = 1400000, + .max_uV = 1500000, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE, + .always_on = 1, + .boot_on = 1, + }, +}; +#endif + +static struct wm831x_pdata hdmidongle_wm8326_pdata = { +#ifdef CONFIG_REGULATOR + .dcdc = { + &hdmidongle_vddarm_dcdc1, /* DCDC1 */ + &hdmidongle_vddsoc_dcdc2, /* DCDC2 */ + }, +#endif + .post_init = wm8326_post_init, +}; + +static struct i2c_board_info mxc_i2c2_board_info[] __initdata = { + { + I2C_BOARD_INFO("wm8326", 0x34), + .platform_data = &hdmidongle_wm8326_pdata, + }, +}; + +int __init mx6q_hdmidongle_init_wm8326(void) +{ + return i2c_register_board_info(2, mxc_i2c2_board_info, + ARRAY_SIZE(mxc_i2c2_board_info)); +} +#else +int __init mx6q_hdmidongle_init_wm8326(void) {}; +#endif + |