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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-06-10 05:30:17 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-06-10 05:30:17 -0300
commitd635711daa98be86d4c7fd01499c34f566b54ccb (patch)
treeaa5cc3760a27c3d57146498cb82fa549547de06c /drivers/regulator/max77802.c
parentc91265cd0efb83778f015b4d4b1129bd2cfd075e (diff)
Linux-libre 4.6.2-gnu
Diffstat (limited to 'drivers/regulator/max77802.c')
-rw-r--r--drivers/regulator/max77802.c610
1 files changed, 0 insertions, 610 deletions
diff --git a/drivers/regulator/max77802.c b/drivers/regulator/max77802.c
deleted file mode 100644
index c07ee13bd..000000000
--- a/drivers/regulator/max77802.c
+++ /dev/null
@@ -1,610 +0,0 @@
-/*
- * max77802.c - Regulator driver for the Maxim 77802
- *
- * Copyright (C) 2013-2014 Google, Inc
- * Simon Glass <sjg@chromium.org>
- *
- * Copyright (C) 2012 Samsung Electronics
- * Chiwoong Byun <woong.byun@smasung.com>
- * Jonghwa Lee <jonghwa3.lee@samsung.com>
- *
- * 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.
- *
- * This driver is based on max8997.c
- */
-
-#include <linux/kernel.h>
-#include <linux/bug.h>
-#include <linux/err.h>
-#include <linux/gpio.h>
-#include <linux/slab.h>
-#include <linux/gpio/consumer.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/regulator/driver.h>
-#include <linux/regulator/machine.h>
-#include <linux/regulator/of_regulator.h>
-#include <linux/mfd/max77686.h>
-#include <linux/mfd/max77686-private.h>
-#include <dt-bindings/regulator/maxim,max77802.h>
-
-/* Default ramp delay in case it is not manually set */
-#define MAX77802_RAMP_DELAY 100000 /* uV/us */
-
-#define MAX77802_OPMODE_SHIFT_LDO 6
-#define MAX77802_OPMODE_BUCK234_SHIFT 4
-#define MAX77802_OPMODE_MASK 0x3
-
-#define MAX77802_VSEL_MASK 0x3F
-#define MAX77802_DVS_VSEL_MASK 0xFF
-
-#define MAX77802_RAMP_RATE_MASK_2BIT 0xC0
-#define MAX77802_RAMP_RATE_SHIFT_2BIT 6
-#define MAX77802_RAMP_RATE_MASK_4BIT 0xF0
-#define MAX77802_RAMP_RATE_SHIFT_4BIT 4
-
-#define MAX77802_STATUS_OFF 0x0
-#define MAX77802_OFF_PWRREQ 0x1
-#define MAX77802_LP_PWRREQ 0x2
-
-/* MAX77802 has two register formats: 2-bit and 4-bit */
-static const unsigned int ramp_table_77802_2bit[] = {
- 12500,
- 25000,
- 50000,
- 100000,
-};
-
-static unsigned int ramp_table_77802_4bit[] = {
- 1000, 2000, 3030, 4000,
- 5000, 5880, 7140, 8330,
- 9090, 10000, 11110, 12500,
- 16670, 25000, 50000, 100000,
-};
-
-struct max77802_regulator_prv {
- /* Array indexed by regulator id */
- unsigned int opmode[MAX77802_REG_MAX];
-};
-
-static inline unsigned int max77802_map_mode(unsigned int mode)
-{
- return mode == MAX77802_OPMODE_NORMAL ?
- REGULATOR_MODE_NORMAL : REGULATOR_MODE_STANDBY;
-}
-
-static int max77802_get_opmode_shift(int id)
-{
- if (id == MAX77802_BUCK1 || (id >= MAX77802_BUCK5 &&
- id <= MAX77802_BUCK10))
- return 0;
-
- if (id >= MAX77802_BUCK2 && id <= MAX77802_BUCK4)
- return MAX77802_OPMODE_BUCK234_SHIFT;
-
- if (id >= MAX77802_LDO1 && id <= MAX77802_LDO35)
- return MAX77802_OPMODE_SHIFT_LDO;
-
- return -EINVAL;
-}
-
-/**
- * max77802_set_suspend_disable - Disable the regulator during system suspend
- * @rdev: regulator to mark as disabled
- *
- * All regulators expect LDO 1, 3, 20 and 21 support OFF by PWRREQ.
- * Configure the regulator so the PMIC will turn it OFF during system suspend.
- */
-static int max77802_set_suspend_disable(struct regulator_dev *rdev)
-{
- unsigned int val = MAX77802_OFF_PWRREQ;
- struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
- int id = rdev_get_id(rdev);
- int shift = max77802_get_opmode_shift(id);
-
- max77802->opmode[id] = val;
- return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
- rdev->desc->enable_mask, val << shift);
-}
-
-/*
- * Some LDOs support Low Power Mode while the system is running.
- *
- * LDOs 1, 3, 20, 21.
- */
-static int max77802_set_mode(struct regulator_dev *rdev, unsigned int mode)
-{
- struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
- int id = rdev_get_id(rdev);
- unsigned int val;
- int shift = max77802_get_opmode_shift(id);
-
- switch (mode) {
- case REGULATOR_MODE_STANDBY:
- val = MAX77802_OPMODE_LP; /* ON in Low Power Mode */
- break;
- case REGULATOR_MODE_NORMAL:
- val = MAX77802_OPMODE_NORMAL; /* ON in Normal Mode */
- break;
- default:
- dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n",
- rdev->desc->name, mode);
- return -EINVAL;
- }
-
- max77802->opmode[id] = val;
- return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
- rdev->desc->enable_mask, val << shift);
-}
-
-static unsigned max77802_get_mode(struct regulator_dev *rdev)
-{
- struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
- int id = rdev_get_id(rdev);
-
- return max77802_map_mode(max77802->opmode[id]);
-}
-
-/**
- * max77802_set_suspend_mode - set regulator opmode when the system is suspended
- * @rdev: regulator to change mode
- * @mode: operating mode to be set
- *
- * Will set the operating mode for the regulators during system suspend.
- * This function is valid for the three different enable control logics:
- *
- * Enable Control Logic1 by PWRREQ (BUCK 2-4 and LDOs 2, 4-19, 22-35)
- * Enable Control Logic2 by PWRREQ (LDOs 1, 20, 21)
- * Enable Control Logic3 by PWRREQ (LDO 3)
- *
- * If setting the regulator mode fails, the function only warns but does
- * not return an error code to avoid the regulator core to stop setting
- * the operating mode for the remaining regulators.
- */
-static int max77802_set_suspend_mode(struct regulator_dev *rdev,
- unsigned int mode)
-{
- struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
- int id = rdev_get_id(rdev);
- unsigned int val;
- int shift = max77802_get_opmode_shift(id);
-
- /*
- * If the regulator has been disabled for suspend
- * then is invalid to try setting a suspend mode.
- */
- if (max77802->opmode[id] == MAX77802_OFF_PWRREQ) {
- dev_warn(&rdev->dev, "%s: is disabled, mode: 0x%x not set\n",
- rdev->desc->name, mode);
- return 0;
- }
-
- switch (mode) {
- case REGULATOR_MODE_STANDBY:
- /*
- * If the regulator opmode is normal then enable
- * ON in Low Power Mode by PWRREQ. If the mode is
- * already Low Power then no action is required.
- */
- if (max77802->opmode[id] == MAX77802_OPMODE_NORMAL)
- val = MAX77802_LP_PWRREQ;
- else
- return 0;
- break;
- case REGULATOR_MODE_NORMAL:
- /*
- * If the regulator operating mode is Low Power then
- * normal is not a valid opmode in suspend. If the
- * mode is already normal then no action is required.
- */
- if (max77802->opmode[id] == MAX77802_OPMODE_LP)
- dev_warn(&rdev->dev, "%s: in Low Power: 0x%x invalid\n",
- rdev->desc->name, mode);
- return 0;
- default:
- dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n",
- rdev->desc->name, mode);
- return -EINVAL;
- }
-
- return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
- rdev->desc->enable_mask, val << shift);
-}
-
-static int max77802_enable(struct regulator_dev *rdev)
-{
- struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
- int id = rdev_get_id(rdev);
- int shift = max77802_get_opmode_shift(id);
-
- if (max77802->opmode[id] == MAX77802_OFF_PWRREQ)
- max77802->opmode[id] = MAX77802_OPMODE_NORMAL;
-
- return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
- rdev->desc->enable_mask,
- max77802->opmode[id] << shift);
-}
-
-static int max77802_find_ramp_value(struct regulator_dev *rdev,
- const unsigned int limits[], int size,
- unsigned int ramp_delay)
-{
- int i;
-
- for (i = 0; i < size; i++) {
- if (ramp_delay <= limits[i])
- return i;
- }
-
- /* Use maximum value for no ramp control */
- dev_warn(&rdev->dev, "%s: ramp_delay: %d not supported, setting 100000\n",
- rdev->desc->name, ramp_delay);
- return size - 1;
-}
-
-/* Used for BUCKs 2-4 */
-static int max77802_set_ramp_delay_2bit(struct regulator_dev *rdev,
- int ramp_delay)
-{
- int id = rdev_get_id(rdev);
- unsigned int ramp_value;
-
- if (id > MAX77802_BUCK4) {
- dev_warn(&rdev->dev,
- "%s: regulator: ramp delay not supported\n",
- rdev->desc->name);
- return -EINVAL;
- }
- ramp_value = max77802_find_ramp_value(rdev, ramp_table_77802_2bit,
- ARRAY_SIZE(ramp_table_77802_2bit), ramp_delay);
-
- return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
- MAX77802_RAMP_RATE_MASK_2BIT,
- ramp_value << MAX77802_RAMP_RATE_SHIFT_2BIT);
-}
-
-/* For BUCK1, 6 */
-static int max77802_set_ramp_delay_4bit(struct regulator_dev *rdev,
- int ramp_delay)
-{
- unsigned int ramp_value;
-
- ramp_value = max77802_find_ramp_value(rdev, ramp_table_77802_4bit,
- ARRAY_SIZE(ramp_table_77802_4bit), ramp_delay);
-
- return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
- MAX77802_RAMP_RATE_MASK_4BIT,
- ramp_value << MAX77802_RAMP_RATE_SHIFT_4BIT);
-}
-
-/*
- * LDOs 2, 4-19, 22-35
- */
-static struct regulator_ops max77802_ldo_ops_logic1 = {
- .list_voltage = regulator_list_voltage_linear,
- .map_voltage = regulator_map_voltage_linear,
- .is_enabled = regulator_is_enabled_regmap,
- .enable = max77802_enable,
- .disable = regulator_disable_regmap,
- .get_voltage_sel = regulator_get_voltage_sel_regmap,
- .set_voltage_sel = regulator_set_voltage_sel_regmap,
- .set_voltage_time_sel = regulator_set_voltage_time_sel,
- .set_suspend_disable = max77802_set_suspend_disable,
- .set_suspend_mode = max77802_set_suspend_mode,
-};
-
-/*
- * LDOs 1, 20, 21, 3
- */
-static struct regulator_ops max77802_ldo_ops_logic2 = {
- .list_voltage = regulator_list_voltage_linear,
- .map_voltage = regulator_map_voltage_linear,
- .is_enabled = regulator_is_enabled_regmap,
- .enable = max77802_enable,
- .disable = regulator_disable_regmap,
- .get_voltage_sel = regulator_get_voltage_sel_regmap,
- .set_voltage_sel = regulator_set_voltage_sel_regmap,
- .set_voltage_time_sel = regulator_set_voltage_time_sel,
- .set_mode = max77802_set_mode,
- .get_mode = max77802_get_mode,
- .set_suspend_mode = max77802_set_suspend_mode,
-};
-
-/* BUCKS 1, 6 */
-static struct regulator_ops max77802_buck_16_dvs_ops = {
- .list_voltage = regulator_list_voltage_linear,
- .map_voltage = regulator_map_voltage_linear,
- .is_enabled = regulator_is_enabled_regmap,
- .enable = max77802_enable,
- .disable = regulator_disable_regmap,
- .get_voltage_sel = regulator_get_voltage_sel_regmap,
- .set_voltage_sel = regulator_set_voltage_sel_regmap,
- .set_voltage_time_sel = regulator_set_voltage_time_sel,
- .set_ramp_delay = max77802_set_ramp_delay_4bit,
- .set_suspend_disable = max77802_set_suspend_disable,
-};
-
-/* BUCKs 2-4 */
-static struct regulator_ops max77802_buck_234_ops = {
- .list_voltage = regulator_list_voltage_linear,
- .map_voltage = regulator_map_voltage_linear,
- .is_enabled = regulator_is_enabled_regmap,
- .enable = max77802_enable,
- .disable = regulator_disable_regmap,
- .get_voltage_sel = regulator_get_voltage_sel_regmap,
- .set_voltage_sel = regulator_set_voltage_sel_regmap,
- .set_voltage_time_sel = regulator_set_voltage_time_sel,
- .set_ramp_delay = max77802_set_ramp_delay_2bit,
- .set_suspend_disable = max77802_set_suspend_disable,
- .set_suspend_mode = max77802_set_suspend_mode,
-};
-
-/* BUCKs 5, 7-10 */
-static struct regulator_ops max77802_buck_dvs_ops = {
- .list_voltage = regulator_list_voltage_linear,
- .map_voltage = regulator_map_voltage_linear,
- .is_enabled = regulator_is_enabled_regmap,
- .enable = max77802_enable,
- .disable = regulator_disable_regmap,
- .get_voltage_sel = regulator_get_voltage_sel_regmap,
- .set_voltage_sel = regulator_set_voltage_sel_regmap,
- .set_voltage_time_sel = regulator_set_voltage_time_sel,
- .set_ramp_delay = max77802_set_ramp_delay_2bit,
- .set_suspend_disable = max77802_set_suspend_disable,
-};
-
-/* LDOs 3-7, 9-14, 18-26, 28, 29, 32-34 */
-#define regulator_77802_desc_p_ldo(num, supply, log) { \
- .name = "LDO"#num, \
- .of_match = of_match_ptr("LDO"#num), \
- .regulators_node = of_match_ptr("regulators"), \
- .id = MAX77802_LDO##num, \
- .supply_name = "inl"#supply, \
- .ops = &max77802_ldo_ops_logic##log, \
- .type = REGULATOR_VOLTAGE, \
- .owner = THIS_MODULE, \
- .min_uV = 800000, \
- .uV_step = 50000, \
- .ramp_delay = MAX77802_RAMP_DELAY, \
- .n_voltages = 1 << 6, \
- .vsel_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \
- .vsel_mask = MAX77802_VSEL_MASK, \
- .enable_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \
- .enable_mask = MAX77802_OPMODE_MASK << MAX77802_OPMODE_SHIFT_LDO, \
- .of_map_mode = max77802_map_mode, \
-}
-
-/* LDOs 1, 2, 8, 15, 17, 27, 30, 35 */
-#define regulator_77802_desc_n_ldo(num, supply, log) { \
- .name = "LDO"#num, \
- .of_match = of_match_ptr("LDO"#num), \
- .regulators_node = of_match_ptr("regulators"), \
- .id = MAX77802_LDO##num, \
- .supply_name = "inl"#supply, \
- .ops = &max77802_ldo_ops_logic##log, \
- .type = REGULATOR_VOLTAGE, \
- .owner = THIS_MODULE, \
- .min_uV = 800000, \
- .uV_step = 25000, \
- .ramp_delay = MAX77802_RAMP_DELAY, \
- .n_voltages = 1 << 6, \
- .vsel_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \
- .vsel_mask = MAX77802_VSEL_MASK, \
- .enable_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \
- .enable_mask = MAX77802_OPMODE_MASK << MAX77802_OPMODE_SHIFT_LDO, \
- .of_map_mode = max77802_map_mode, \
-}
-
-/* BUCKs 1, 6 */
-#define regulator_77802_desc_16_buck(num) { \
- .name = "BUCK"#num, \
- .of_match = of_match_ptr("BUCK"#num), \
- .regulators_node = of_match_ptr("regulators"), \
- .id = MAX77802_BUCK##num, \
- .supply_name = "inb"#num, \
- .ops = &max77802_buck_16_dvs_ops, \
- .type = REGULATOR_VOLTAGE, \
- .owner = THIS_MODULE, \
- .min_uV = 612500, \
- .uV_step = 6250, \
- .ramp_delay = MAX77802_RAMP_DELAY, \
- .n_voltages = 1 << 8, \
- .vsel_reg = MAX77802_REG_BUCK ## num ## DVS1, \
- .vsel_mask = MAX77802_DVS_VSEL_MASK, \
- .enable_reg = MAX77802_REG_BUCK ## num ## CTRL, \
- .enable_mask = MAX77802_OPMODE_MASK, \
- .of_map_mode = max77802_map_mode, \
-}
-
-/* BUCKS 2-4 */
-#define regulator_77802_desc_234_buck(num) { \
- .name = "BUCK"#num, \
- .of_match = of_match_ptr("BUCK"#num), \
- .regulators_node = of_match_ptr("regulators"), \
- .id = MAX77802_BUCK##num, \
- .supply_name = "inb"#num, \
- .ops = &max77802_buck_234_ops, \
- .type = REGULATOR_VOLTAGE, \
- .owner = THIS_MODULE, \
- .min_uV = 600000, \
- .uV_step = 6250, \
- .ramp_delay = MAX77802_RAMP_DELAY, \
- .n_voltages = 0x91, \
- .vsel_reg = MAX77802_REG_BUCK ## num ## DVS1, \
- .vsel_mask = MAX77802_DVS_VSEL_MASK, \
- .enable_reg = MAX77802_REG_BUCK ## num ## CTRL1, \
- .enable_mask = MAX77802_OPMODE_MASK << \
- MAX77802_OPMODE_BUCK234_SHIFT, \
- .of_map_mode = max77802_map_mode, \
-}
-
-/* BUCK 5 */
-#define regulator_77802_desc_buck5(num) { \
- .name = "BUCK"#num, \
- .of_match = of_match_ptr("BUCK"#num), \
- .regulators_node = of_match_ptr("regulators"), \
- .id = MAX77802_BUCK##num, \
- .supply_name = "inb"#num, \
- .ops = &max77802_buck_dvs_ops, \
- .type = REGULATOR_VOLTAGE, \
- .owner = THIS_MODULE, \
- .min_uV = 750000, \
- .uV_step = 50000, \
- .ramp_delay = MAX77802_RAMP_DELAY, \
- .n_voltages = 1 << 6, \
- .vsel_reg = MAX77802_REG_BUCK5OUT, \
- .vsel_mask = MAX77802_VSEL_MASK, \
- .enable_reg = MAX77802_REG_BUCK5CTRL, \
- .enable_mask = MAX77802_OPMODE_MASK, \
- .of_map_mode = max77802_map_mode, \
-}
-
-/* BUCKs 7-10 */
-#define regulator_77802_desc_buck7_10(num) { \
- .name = "BUCK"#num, \
- .of_match = of_match_ptr("BUCK"#num), \
- .regulators_node = of_match_ptr("regulators"), \
- .id = MAX77802_BUCK##num, \
- .supply_name = "inb"#num, \
- .ops = &max77802_buck_dvs_ops, \
- .type = REGULATOR_VOLTAGE, \
- .owner = THIS_MODULE, \
- .min_uV = 750000, \
- .uV_step = 50000, \
- .ramp_delay = MAX77802_RAMP_DELAY, \
- .n_voltages = 1 << 6, \
- .vsel_reg = MAX77802_REG_BUCK7OUT + (num - 7) * 3, \
- .vsel_mask = MAX77802_VSEL_MASK, \
- .enable_reg = MAX77802_REG_BUCK7CTRL + (num - 7) * 3, \
- .enable_mask = MAX77802_OPMODE_MASK, \
- .of_map_mode = max77802_map_mode, \
-}
-
-static const struct regulator_desc regulators[] = {
- regulator_77802_desc_16_buck(1),
- regulator_77802_desc_234_buck(2),
- regulator_77802_desc_234_buck(3),
- regulator_77802_desc_234_buck(4),
- regulator_77802_desc_buck5(5),
- regulator_77802_desc_16_buck(6),
- regulator_77802_desc_buck7_10(7),
- regulator_77802_desc_buck7_10(8),
- regulator_77802_desc_buck7_10(9),
- regulator_77802_desc_buck7_10(10),
- regulator_77802_desc_n_ldo(1, 10, 2),
- regulator_77802_desc_n_ldo(2, 10, 1),
- regulator_77802_desc_p_ldo(3, 3, 2),
- regulator_77802_desc_p_ldo(4, 6, 1),
- regulator_77802_desc_p_ldo(5, 3, 1),
- regulator_77802_desc_p_ldo(6, 3, 1),
- regulator_77802_desc_p_ldo(7, 3, 1),
- regulator_77802_desc_n_ldo(8, 1, 1),
- regulator_77802_desc_p_ldo(9, 5, 1),
- regulator_77802_desc_p_ldo(10, 4, 1),
- regulator_77802_desc_p_ldo(11, 4, 1),
- regulator_77802_desc_p_ldo(12, 9, 1),
- regulator_77802_desc_p_ldo(13, 4, 1),
- regulator_77802_desc_p_ldo(14, 4, 1),
- regulator_77802_desc_n_ldo(15, 1, 1),
- regulator_77802_desc_n_ldo(17, 2, 1),
- regulator_77802_desc_p_ldo(18, 7, 1),
- regulator_77802_desc_p_ldo(19, 5, 1),
- regulator_77802_desc_p_ldo(20, 7, 2),
- regulator_77802_desc_p_ldo(21, 6, 2),
- regulator_77802_desc_p_ldo(23, 9, 1),
- regulator_77802_desc_p_ldo(24, 6, 1),
- regulator_77802_desc_p_ldo(25, 9, 1),
- regulator_77802_desc_p_ldo(26, 9, 1),
- regulator_77802_desc_n_ldo(27, 2, 1),
- regulator_77802_desc_p_ldo(28, 7, 1),
- regulator_77802_desc_p_ldo(29, 7, 1),
- regulator_77802_desc_n_ldo(30, 2, 1),
- regulator_77802_desc_p_ldo(32, 9, 1),
- regulator_77802_desc_p_ldo(33, 6, 1),
- regulator_77802_desc_p_ldo(34, 9, 1),
- regulator_77802_desc_n_ldo(35, 2, 1),
-};
-
-static int max77802_pmic_probe(struct platform_device *pdev)
-{
- struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);
- struct max77802_regulator_prv *max77802;
- int i, val;
- struct regulator_config config = { };
-
- max77802 = devm_kzalloc(&pdev->dev,
- sizeof(struct max77802_regulator_prv),
- GFP_KERNEL);
- if (!max77802)
- return -ENOMEM;
-
- config.dev = iodev->dev;
- config.regmap = iodev->regmap;
- config.driver_data = max77802;
- platform_set_drvdata(pdev, max77802);
-
- for (i = 0; i < MAX77802_REG_MAX; i++) {
- struct regulator_dev *rdev;
- int id = regulators[i].id;
- int shift = max77802_get_opmode_shift(id);
- int ret;
-
- ret = regmap_read(iodev->regmap, regulators[i].enable_reg, &val);
- if (ret < 0) {
- dev_warn(&pdev->dev,
- "cannot read current mode for %d\n", i);
- val = MAX77802_OPMODE_NORMAL;
- } else {
- val = val >> shift & MAX77802_OPMODE_MASK;
- }
-
- /*
- * If the regulator is disabled and the system warm rebooted,
- * the hardware reports OFF as the regulator operating mode.
- * Default to operating mode NORMAL in that case.
- */
- if (val == MAX77802_STATUS_OFF)
- max77802->opmode[id] = MAX77802_OPMODE_NORMAL;
- else
- max77802->opmode[id] = val;
-
- rdev = devm_regulator_register(&pdev->dev,
- &regulators[i], &config);
- if (IS_ERR(rdev)) {
- ret = PTR_ERR(rdev);
- dev_err(&pdev->dev,
- "regulator init failed for %d: %d\n", i, ret);
- return ret;
- }
- }
-
- return 0;
-}
-
-static const struct platform_device_id max77802_pmic_id[] = {
- {"max77802-pmic", 0},
- { },
-};
-MODULE_DEVICE_TABLE(platform, max77802_pmic_id);
-
-static struct platform_driver max77802_pmic_driver = {
- .driver = {
- .name = "max77802-pmic",
- },
- .probe = max77802_pmic_probe,
- .id_table = max77802_pmic_id,
-};
-
-module_platform_driver(max77802_pmic_driver);
-
-MODULE_DESCRIPTION("MAXIM 77802 Regulator Driver");
-MODULE_AUTHOR("Simon Glass <sjg@chromium.org>");
-MODULE_LICENSE("GPL");