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1011 lines
29 KiB
1011 lines
29 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Copyright (c) 2014, Sony Mobile Communications AB. |
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* Copyright (c) 2012-2013, The Linux Foundation. All rights reserved. |
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*/ |
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|
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#include <linux/module.h> |
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#include <linux/platform_device.h> |
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#include <linux/of.h> |
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#include <linux/of_device.h> |
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#include <linux/regulator/driver.h> |
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#include <linux/regulator/machine.h> |
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#include <linux/regulator/of_regulator.h> |
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#include <linux/mfd/qcom_rpm.h> |
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#include <dt-bindings/mfd/qcom-rpm.h> |
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#define MAX_REQUEST_LEN 2 |
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struct request_member { |
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int word; |
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unsigned int mask; |
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int shift; |
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}; |
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struct rpm_reg_parts { |
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struct request_member mV; /* used if voltage is in mV */ |
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struct request_member uV; /* used if voltage is in uV */ |
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struct request_member ip; /* peak current in mA */ |
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struct request_member pd; /* pull down enable */ |
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struct request_member ia; /* average current in mA */ |
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struct request_member fm; /* force mode */ |
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struct request_member pm; /* power mode */ |
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struct request_member pc; /* pin control */ |
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struct request_member pf; /* pin function */ |
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struct request_member enable_state; /* NCP and switch */ |
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struct request_member comp_mode; /* NCP */ |
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struct request_member freq; /* frequency: NCP and SMPS */ |
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struct request_member freq_clk_src; /* clock source: SMPS */ |
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struct request_member hpm; /* switch: control OCP and SS */ |
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int request_len; |
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}; |
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#define FORCE_MODE_IS_2_BITS(reg) \ |
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(((reg)->parts->fm.mask >> (reg)->parts->fm.shift) == 3) |
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struct qcom_rpm_reg { |
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struct qcom_rpm *rpm; |
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struct mutex lock; |
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struct device *dev; |
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struct regulator_desc desc; |
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const struct rpm_reg_parts *parts; |
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int resource; |
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u32 val[MAX_REQUEST_LEN]; |
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int uV; |
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int is_enabled; |
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bool supports_force_mode_auto; |
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bool supports_force_mode_bypass; |
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}; |
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static const struct rpm_reg_parts rpm8660_ldo_parts = { |
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.request_len = 2, |
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.mV = { 0, 0x00000FFF, 0 }, |
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.ip = { 0, 0x00FFF000, 12 }, |
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.fm = { 0, 0x03000000, 24 }, |
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.pc = { 0, 0x3C000000, 26 }, |
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.pf = { 0, 0xC0000000, 30 }, |
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.pd = { 1, 0x00000001, 0 }, |
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.ia = { 1, 0x00001FFE, 1 }, |
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}; |
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static const struct rpm_reg_parts rpm8660_smps_parts = { |
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.request_len = 2, |
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.mV = { 0, 0x00000FFF, 0 }, |
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.ip = { 0, 0x00FFF000, 12 }, |
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.fm = { 0, 0x03000000, 24 }, |
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.pc = { 0, 0x3C000000, 26 }, |
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.pf = { 0, 0xC0000000, 30 }, |
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.pd = { 1, 0x00000001, 0 }, |
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.ia = { 1, 0x00001FFE, 1 }, |
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.freq = { 1, 0x001FE000, 13 }, |
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.freq_clk_src = { 1, 0x00600000, 21 }, |
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}; |
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static const struct rpm_reg_parts rpm8660_switch_parts = { |
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.request_len = 1, |
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.enable_state = { 0, 0x00000001, 0 }, |
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.pd = { 0, 0x00000002, 1 }, |
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.pc = { 0, 0x0000003C, 2 }, |
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.pf = { 0, 0x000000C0, 6 }, |
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.hpm = { 0, 0x00000300, 8 }, |
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}; |
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static const struct rpm_reg_parts rpm8660_ncp_parts = { |
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.request_len = 1, |
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.mV = { 0, 0x00000FFF, 0 }, |
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.enable_state = { 0, 0x00001000, 12 }, |
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.comp_mode = { 0, 0x00002000, 13 }, |
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.freq = { 0, 0x003FC000, 14 }, |
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}; |
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static const struct rpm_reg_parts rpm8960_ldo_parts = { |
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.request_len = 2, |
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.uV = { 0, 0x007FFFFF, 0 }, |
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.pd = { 0, 0x00800000, 23 }, |
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.pc = { 0, 0x0F000000, 24 }, |
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.pf = { 0, 0xF0000000, 28 }, |
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.ip = { 1, 0x000003FF, 0 }, |
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.ia = { 1, 0x000FFC00, 10 }, |
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.fm = { 1, 0x00700000, 20 }, |
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}; |
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static const struct rpm_reg_parts rpm8960_smps_parts = { |
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.request_len = 2, |
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.uV = { 0, 0x007FFFFF, 0 }, |
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.pd = { 0, 0x00800000, 23 }, |
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.pc = { 0, 0x0F000000, 24 }, |
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.pf = { 0, 0xF0000000, 28 }, |
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.ip = { 1, 0x000003FF, 0 }, |
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.ia = { 1, 0x000FFC00, 10 }, |
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.fm = { 1, 0x00700000, 20 }, |
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.pm = { 1, 0x00800000, 23 }, |
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.freq = { 1, 0x1F000000, 24 }, |
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.freq_clk_src = { 1, 0x60000000, 29 }, |
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}; |
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static const struct rpm_reg_parts rpm8960_switch_parts = { |
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.request_len = 1, |
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.enable_state = { 0, 0x00000001, 0 }, |
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.pd = { 0, 0x00000002, 1 }, |
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.pc = { 0, 0x0000003C, 2 }, |
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.pf = { 0, 0x000003C0, 6 }, |
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.hpm = { 0, 0x00000C00, 10 }, |
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}; |
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static const struct rpm_reg_parts rpm8960_ncp_parts = { |
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.request_len = 1, |
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.uV = { 0, 0x007FFFFF, 0 }, |
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.enable_state = { 0, 0x00800000, 23 }, |
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.comp_mode = { 0, 0x01000000, 24 }, |
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.freq = { 0, 0x3E000000, 25 }, |
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}; |
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/* |
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* Physically available PMIC regulator voltage ranges |
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*/ |
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static const struct linear_range pldo_ranges[] = { |
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REGULATOR_LINEAR_RANGE( 750000, 0, 59, 12500), |
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REGULATOR_LINEAR_RANGE(1500000, 60, 123, 25000), |
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REGULATOR_LINEAR_RANGE(3100000, 124, 160, 50000), |
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}; |
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static const struct linear_range nldo_ranges[] = { |
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REGULATOR_LINEAR_RANGE( 750000, 0, 63, 12500), |
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}; |
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static const struct linear_range nldo1200_ranges[] = { |
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REGULATOR_LINEAR_RANGE( 375000, 0, 59, 6250), |
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REGULATOR_LINEAR_RANGE( 750000, 60, 123, 12500), |
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}; |
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static const struct linear_range smps_ranges[] = { |
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REGULATOR_LINEAR_RANGE( 375000, 0, 29, 12500), |
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REGULATOR_LINEAR_RANGE( 750000, 30, 89, 12500), |
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REGULATOR_LINEAR_RANGE(1500000, 90, 153, 25000), |
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}; |
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static const struct linear_range ftsmps_ranges[] = { |
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REGULATOR_LINEAR_RANGE( 350000, 0, 6, 50000), |
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REGULATOR_LINEAR_RANGE( 700000, 7, 63, 12500), |
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REGULATOR_LINEAR_RANGE(1500000, 64, 100, 50000), |
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}; |
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static const struct linear_range smb208_ranges[] = { |
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REGULATOR_LINEAR_RANGE( 375000, 0, 29, 12500), |
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REGULATOR_LINEAR_RANGE( 750000, 30, 89, 12500), |
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REGULATOR_LINEAR_RANGE(1500000, 90, 153, 25000), |
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REGULATOR_LINEAR_RANGE(3100000, 154, 234, 25000), |
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}; |
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static const struct linear_range ncp_ranges[] = { |
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REGULATOR_LINEAR_RANGE(1500000, 0, 31, 50000), |
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}; |
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static int rpm_reg_write(struct qcom_rpm_reg *vreg, |
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const struct request_member *req, |
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const int value) |
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{ |
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if (WARN_ON((value << req->shift) & ~req->mask)) |
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return -EINVAL; |
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vreg->val[req->word] &= ~req->mask; |
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vreg->val[req->word] |= value << req->shift; |
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return qcom_rpm_write(vreg->rpm, |
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QCOM_RPM_ACTIVE_STATE, |
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vreg->resource, |
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vreg->val, |
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vreg->parts->request_len); |
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} |
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static int rpm_reg_set_mV_sel(struct regulator_dev *rdev, |
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unsigned selector) |
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{ |
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struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); |
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const struct rpm_reg_parts *parts = vreg->parts; |
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const struct request_member *req = &parts->mV; |
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int ret = 0; |
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int uV; |
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if (req->mask == 0) |
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return -EINVAL; |
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uV = regulator_list_voltage_linear_range(rdev, selector); |
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if (uV < 0) |
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return uV; |
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mutex_lock(&vreg->lock); |
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if (vreg->is_enabled) |
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ret = rpm_reg_write(vreg, req, uV / 1000); |
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if (!ret) |
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vreg->uV = uV; |
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mutex_unlock(&vreg->lock); |
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return ret; |
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} |
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static int rpm_reg_set_uV_sel(struct regulator_dev *rdev, |
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unsigned selector) |
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{ |
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struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); |
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const struct rpm_reg_parts *parts = vreg->parts; |
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const struct request_member *req = &parts->uV; |
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int ret = 0; |
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int uV; |
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if (req->mask == 0) |
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return -EINVAL; |
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uV = regulator_list_voltage_linear_range(rdev, selector); |
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if (uV < 0) |
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return uV; |
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mutex_lock(&vreg->lock); |
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if (vreg->is_enabled) |
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ret = rpm_reg_write(vreg, req, uV); |
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if (!ret) |
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vreg->uV = uV; |
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mutex_unlock(&vreg->lock); |
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return ret; |
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} |
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static int rpm_reg_get_voltage(struct regulator_dev *rdev) |
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{ |
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struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); |
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return vreg->uV; |
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} |
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static int rpm_reg_mV_enable(struct regulator_dev *rdev) |
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{ |
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struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); |
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const struct rpm_reg_parts *parts = vreg->parts; |
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const struct request_member *req = &parts->mV; |
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int ret; |
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if (req->mask == 0) |
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return -EINVAL; |
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mutex_lock(&vreg->lock); |
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ret = rpm_reg_write(vreg, req, vreg->uV / 1000); |
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if (!ret) |
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vreg->is_enabled = 1; |
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mutex_unlock(&vreg->lock); |
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return ret; |
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} |
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static int rpm_reg_uV_enable(struct regulator_dev *rdev) |
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{ |
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struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); |
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const struct rpm_reg_parts *parts = vreg->parts; |
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const struct request_member *req = &parts->uV; |
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int ret; |
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if (req->mask == 0) |
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return -EINVAL; |
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mutex_lock(&vreg->lock); |
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ret = rpm_reg_write(vreg, req, vreg->uV); |
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if (!ret) |
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vreg->is_enabled = 1; |
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mutex_unlock(&vreg->lock); |
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return ret; |
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} |
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static int rpm_reg_switch_enable(struct regulator_dev *rdev) |
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{ |
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struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); |
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const struct rpm_reg_parts *parts = vreg->parts; |
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const struct request_member *req = &parts->enable_state; |
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int ret; |
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if (req->mask == 0) |
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return -EINVAL; |
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mutex_lock(&vreg->lock); |
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ret = rpm_reg_write(vreg, req, 1); |
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if (!ret) |
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vreg->is_enabled = 1; |
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mutex_unlock(&vreg->lock); |
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return ret; |
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} |
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static int rpm_reg_mV_disable(struct regulator_dev *rdev) |
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{ |
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struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); |
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const struct rpm_reg_parts *parts = vreg->parts; |
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const struct request_member *req = &parts->mV; |
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int ret; |
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if (req->mask == 0) |
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return -EINVAL; |
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mutex_lock(&vreg->lock); |
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ret = rpm_reg_write(vreg, req, 0); |
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if (!ret) |
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vreg->is_enabled = 0; |
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mutex_unlock(&vreg->lock); |
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return ret; |
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} |
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static int rpm_reg_uV_disable(struct regulator_dev *rdev) |
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{ |
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struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); |
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const struct rpm_reg_parts *parts = vreg->parts; |
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const struct request_member *req = &parts->uV; |
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int ret; |
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if (req->mask == 0) |
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return -EINVAL; |
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mutex_lock(&vreg->lock); |
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ret = rpm_reg_write(vreg, req, 0); |
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if (!ret) |
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vreg->is_enabled = 0; |
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mutex_unlock(&vreg->lock); |
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return ret; |
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} |
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static int rpm_reg_switch_disable(struct regulator_dev *rdev) |
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{ |
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struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); |
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const struct rpm_reg_parts *parts = vreg->parts; |
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const struct request_member *req = &parts->enable_state; |
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int ret; |
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if (req->mask == 0) |
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return -EINVAL; |
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mutex_lock(&vreg->lock); |
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ret = rpm_reg_write(vreg, req, 0); |
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if (!ret) |
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vreg->is_enabled = 0; |
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mutex_unlock(&vreg->lock); |
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return ret; |
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} |
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static int rpm_reg_is_enabled(struct regulator_dev *rdev) |
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{ |
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struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); |
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return vreg->is_enabled; |
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} |
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static int rpm_reg_set_load(struct regulator_dev *rdev, int load_uA) |
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{ |
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struct qcom_rpm_reg *vreg = rdev_get_drvdata(rdev); |
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const struct rpm_reg_parts *parts = vreg->parts; |
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const struct request_member *req = &parts->ia; |
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int load_mA = load_uA / 1000; |
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int max_mA = req->mask >> req->shift; |
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int ret; |
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if (req->mask == 0) |
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return -EINVAL; |
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if (load_mA > max_mA) |
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load_mA = max_mA; |
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mutex_lock(&vreg->lock); |
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ret = rpm_reg_write(vreg, req, load_mA); |
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mutex_unlock(&vreg->lock); |
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return ret; |
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} |
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static const struct regulator_ops uV_ops = { |
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.list_voltage = regulator_list_voltage_linear_range, |
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.set_voltage_sel = rpm_reg_set_uV_sel, |
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.get_voltage = rpm_reg_get_voltage, |
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.enable = rpm_reg_uV_enable, |
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.disable = rpm_reg_uV_disable, |
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.is_enabled = rpm_reg_is_enabled, |
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.set_load = rpm_reg_set_load, |
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}; |
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static const struct regulator_ops mV_ops = { |
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.list_voltage = regulator_list_voltage_linear_range, |
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.set_voltage_sel = rpm_reg_set_mV_sel, |
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.get_voltage = rpm_reg_get_voltage, |
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.enable = rpm_reg_mV_enable, |
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.disable = rpm_reg_mV_disable, |
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.is_enabled = rpm_reg_is_enabled, |
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.set_load = rpm_reg_set_load, |
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}; |
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static const struct regulator_ops switch_ops = { |
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.enable = rpm_reg_switch_enable, |
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.disable = rpm_reg_switch_disable, |
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.is_enabled = rpm_reg_is_enabled, |
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}; |
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/* |
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* PM8018 regulators |
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*/ |
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static const struct qcom_rpm_reg pm8018_pldo = { |
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.desc.linear_ranges = pldo_ranges, |
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.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges), |
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.desc.n_voltages = 161, |
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.desc.ops = &uV_ops, |
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.parts = &rpm8960_ldo_parts, |
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.supports_force_mode_auto = false, |
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.supports_force_mode_bypass = false, |
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}; |
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static const struct qcom_rpm_reg pm8018_nldo = { |
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.desc.linear_ranges = nldo_ranges, |
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.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges), |
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.desc.n_voltages = 64, |
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.desc.ops = &uV_ops, |
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.parts = &rpm8960_ldo_parts, |
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.supports_force_mode_auto = false, |
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.supports_force_mode_bypass = false, |
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}; |
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static const struct qcom_rpm_reg pm8018_smps = { |
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.desc.linear_ranges = smps_ranges, |
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.desc.n_linear_ranges = ARRAY_SIZE(smps_ranges), |
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.desc.n_voltages = 154, |
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.desc.ops = &uV_ops, |
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.parts = &rpm8960_smps_parts, |
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.supports_force_mode_auto = false, |
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.supports_force_mode_bypass = false, |
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}; |
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static const struct qcom_rpm_reg pm8018_switch = { |
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.desc.ops = &switch_ops, |
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.parts = &rpm8960_switch_parts, |
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}; |
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/* |
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* PM8058 regulators |
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*/ |
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static const struct qcom_rpm_reg pm8058_pldo = { |
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.desc.linear_ranges = pldo_ranges, |
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.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges), |
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.desc.n_voltages = 161, |
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.desc.ops = &mV_ops, |
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.parts = &rpm8660_ldo_parts, |
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.supports_force_mode_auto = false, |
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.supports_force_mode_bypass = false, |
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}; |
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static const struct qcom_rpm_reg pm8058_nldo = { |
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.desc.linear_ranges = nldo_ranges, |
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.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges), |
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.desc.n_voltages = 64, |
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.desc.ops = &mV_ops, |
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.parts = &rpm8660_ldo_parts, |
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.supports_force_mode_auto = false, |
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.supports_force_mode_bypass = false, |
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}; |
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static const struct qcom_rpm_reg pm8058_smps = { |
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.desc.linear_ranges = smps_ranges, |
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.desc.n_linear_ranges = ARRAY_SIZE(smps_ranges), |
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.desc.n_voltages = 154, |
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.desc.ops = &mV_ops, |
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.parts = &rpm8660_smps_parts, |
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.supports_force_mode_auto = false, |
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.supports_force_mode_bypass = false, |
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}; |
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static const struct qcom_rpm_reg pm8058_ncp = { |
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.desc.linear_ranges = ncp_ranges, |
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.desc.n_linear_ranges = ARRAY_SIZE(ncp_ranges), |
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.desc.n_voltages = 32, |
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.desc.ops = &mV_ops, |
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.parts = &rpm8660_ncp_parts, |
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}; |
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static const struct qcom_rpm_reg pm8058_switch = { |
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.desc.ops = &switch_ops, |
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.parts = &rpm8660_switch_parts, |
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}; |
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|
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/* |
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* PM8901 regulators |
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*/ |
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static const struct qcom_rpm_reg pm8901_pldo = { |
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.desc.linear_ranges = pldo_ranges, |
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.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges), |
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.desc.n_voltages = 161, |
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.desc.ops = &mV_ops, |
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.parts = &rpm8660_ldo_parts, |
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.supports_force_mode_auto = false, |
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.supports_force_mode_bypass = true, |
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}; |
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static const struct qcom_rpm_reg pm8901_nldo = { |
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.desc.linear_ranges = nldo_ranges, |
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.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges), |
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.desc.n_voltages = 64, |
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.desc.ops = &mV_ops, |
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.parts = &rpm8660_ldo_parts, |
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.supports_force_mode_auto = false, |
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.supports_force_mode_bypass = true, |
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}; |
|
|
|
static const struct qcom_rpm_reg pm8901_ftsmps = { |
|
.desc.linear_ranges = ftsmps_ranges, |
|
.desc.n_linear_ranges = ARRAY_SIZE(ftsmps_ranges), |
|
.desc.n_voltages = 101, |
|
.desc.ops = &mV_ops, |
|
.parts = &rpm8660_smps_parts, |
|
.supports_force_mode_auto = true, |
|
.supports_force_mode_bypass = false, |
|
}; |
|
|
|
static const struct qcom_rpm_reg pm8901_switch = { |
|
.desc.ops = &switch_ops, |
|
.parts = &rpm8660_switch_parts, |
|
}; |
|
|
|
/* |
|
* PM8921 regulators |
|
*/ |
|
static const struct qcom_rpm_reg pm8921_pldo = { |
|
.desc.linear_ranges = pldo_ranges, |
|
.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges), |
|
.desc.n_voltages = 161, |
|
.desc.ops = &uV_ops, |
|
.parts = &rpm8960_ldo_parts, |
|
.supports_force_mode_auto = false, |
|
.supports_force_mode_bypass = true, |
|
}; |
|
|
|
static const struct qcom_rpm_reg pm8921_nldo = { |
|
.desc.linear_ranges = nldo_ranges, |
|
.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges), |
|
.desc.n_voltages = 64, |
|
.desc.ops = &uV_ops, |
|
.parts = &rpm8960_ldo_parts, |
|
.supports_force_mode_auto = false, |
|
.supports_force_mode_bypass = true, |
|
}; |
|
|
|
static const struct qcom_rpm_reg pm8921_nldo1200 = { |
|
.desc.linear_ranges = nldo1200_ranges, |
|
.desc.n_linear_ranges = ARRAY_SIZE(nldo1200_ranges), |
|
.desc.n_voltages = 124, |
|
.desc.ops = &uV_ops, |
|
.parts = &rpm8960_ldo_parts, |
|
.supports_force_mode_auto = false, |
|
.supports_force_mode_bypass = true, |
|
}; |
|
|
|
static const struct qcom_rpm_reg pm8921_smps = { |
|
.desc.linear_ranges = smps_ranges, |
|
.desc.n_linear_ranges = ARRAY_SIZE(smps_ranges), |
|
.desc.n_voltages = 154, |
|
.desc.ops = &uV_ops, |
|
.parts = &rpm8960_smps_parts, |
|
.supports_force_mode_auto = true, |
|
.supports_force_mode_bypass = false, |
|
}; |
|
|
|
static const struct qcom_rpm_reg pm8921_ncp = { |
|
.desc.linear_ranges = ncp_ranges, |
|
.desc.n_linear_ranges = ARRAY_SIZE(ncp_ranges), |
|
.desc.n_voltages = 32, |
|
.desc.ops = &uV_ops, |
|
.parts = &rpm8960_ncp_parts, |
|
}; |
|
|
|
static const struct qcom_rpm_reg pm8921_switch = { |
|
.desc.ops = &switch_ops, |
|
.parts = &rpm8960_switch_parts, |
|
}; |
|
|
|
static const struct qcom_rpm_reg smb208_smps = { |
|
.desc.linear_ranges = smb208_ranges, |
|
.desc.n_linear_ranges = ARRAY_SIZE(smb208_ranges), |
|
.desc.n_voltages = 235, |
|
.desc.ops = &uV_ops, |
|
.parts = &rpm8960_smps_parts, |
|
.supports_force_mode_auto = false, |
|
.supports_force_mode_bypass = false, |
|
}; |
|
|
|
static int rpm_reg_set(struct qcom_rpm_reg *vreg, |
|
const struct request_member *req, |
|
const int value) |
|
{ |
|
if (req->mask == 0 || (value << req->shift) & ~req->mask) |
|
return -EINVAL; |
|
|
|
vreg->val[req->word] &= ~req->mask; |
|
vreg->val[req->word] |= value << req->shift; |
|
|
|
return 0; |
|
} |
|
|
|
static int rpm_reg_of_parse_freq(struct device *dev, |
|
struct device_node *node, |
|
struct qcom_rpm_reg *vreg) |
|
{ |
|
static const int freq_table[] = { |
|
19200000, 9600000, 6400000, 4800000, 3840000, 3200000, 2740000, |
|
2400000, 2130000, 1920000, 1750000, 1600000, 1480000, 1370000, |
|
1280000, 1200000, |
|
|
|
}; |
|
const char *key; |
|
u32 freq; |
|
int ret; |
|
int i; |
|
|
|
key = "qcom,switch-mode-frequency"; |
|
ret = of_property_read_u32(node, key, &freq); |
|
if (ret) { |
|
dev_err(dev, "regulator requires %s property\n", key); |
|
return -EINVAL; |
|
} |
|
|
|
for (i = 0; i < ARRAY_SIZE(freq_table); i++) { |
|
if (freq == freq_table[i]) { |
|
rpm_reg_set(vreg, &vreg->parts->freq, i + 1); |
|
return 0; |
|
} |
|
} |
|
|
|
dev_err(dev, "invalid frequency %d\n", freq); |
|
return -EINVAL; |
|
} |
|
|
|
static int rpm_reg_of_parse(struct device_node *node, |
|
const struct regulator_desc *desc, |
|
struct regulator_config *config) |
|
{ |
|
struct qcom_rpm_reg *vreg = config->driver_data; |
|
struct device *dev = config->dev; |
|
const char *key; |
|
u32 force_mode; |
|
bool pwm; |
|
u32 val; |
|
int ret; |
|
|
|
key = "bias-pull-down"; |
|
if (of_property_read_bool(node, key)) { |
|
ret = rpm_reg_set(vreg, &vreg->parts->pd, 1); |
|
if (ret) { |
|
dev_err(dev, "%s is invalid", key); |
|
return ret; |
|
} |
|
} |
|
|
|
if (vreg->parts->freq.mask) { |
|
ret = rpm_reg_of_parse_freq(dev, node, vreg); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
if (vreg->parts->pm.mask) { |
|
key = "qcom,power-mode-hysteretic"; |
|
pwm = !of_property_read_bool(node, key); |
|
|
|
ret = rpm_reg_set(vreg, &vreg->parts->pm, pwm); |
|
if (ret) { |
|
dev_err(dev, "failed to set power mode\n"); |
|
return ret; |
|
} |
|
} |
|
|
|
if (vreg->parts->fm.mask) { |
|
force_mode = -1; |
|
|
|
key = "qcom,force-mode"; |
|
ret = of_property_read_u32(node, key, &val); |
|
if (ret == -EINVAL) { |
|
val = QCOM_RPM_FORCE_MODE_NONE; |
|
} else if (ret < 0) { |
|
dev_err(dev, "failed to read %s\n", key); |
|
return ret; |
|
} |
|
|
|
/* |
|
* If force-mode is encoded as 2 bits then the |
|
* possible register values are: |
|
* NONE, LPM, HPM |
|
* otherwise: |
|
* NONE, LPM, AUTO, HPM, BYPASS |
|
*/ |
|
switch (val) { |
|
case QCOM_RPM_FORCE_MODE_NONE: |
|
force_mode = 0; |
|
break; |
|
case QCOM_RPM_FORCE_MODE_LPM: |
|
force_mode = 1; |
|
break; |
|
case QCOM_RPM_FORCE_MODE_HPM: |
|
if (FORCE_MODE_IS_2_BITS(vreg)) |
|
force_mode = 2; |
|
else |
|
force_mode = 3; |
|
break; |
|
case QCOM_RPM_FORCE_MODE_AUTO: |
|
if (vreg->supports_force_mode_auto) |
|
force_mode = 2; |
|
break; |
|
case QCOM_RPM_FORCE_MODE_BYPASS: |
|
if (vreg->supports_force_mode_bypass) |
|
force_mode = 4; |
|
break; |
|
} |
|
|
|
if (force_mode == -1) { |
|
dev_err(dev, "invalid force mode\n"); |
|
return -EINVAL; |
|
} |
|
|
|
ret = rpm_reg_set(vreg, &vreg->parts->fm, force_mode); |
|
if (ret) { |
|
dev_err(dev, "failed to set force mode\n"); |
|
return ret; |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
struct rpm_regulator_data { |
|
const char *name; |
|
int resource; |
|
const struct qcom_rpm_reg *template; |
|
const char *supply; |
|
}; |
|
|
|
static const struct rpm_regulator_data rpm_pm8018_regulators[] = { |
|
{ "s1", QCOM_RPM_PM8018_SMPS1, &pm8018_smps, "vdd_s1" }, |
|
{ "s2", QCOM_RPM_PM8018_SMPS2, &pm8018_smps, "vdd_s2" }, |
|
{ "s3", QCOM_RPM_PM8018_SMPS3, &pm8018_smps, "vdd_s3" }, |
|
{ "s4", QCOM_RPM_PM8018_SMPS4, &pm8018_smps, "vdd_s4" }, |
|
{ "s5", QCOM_RPM_PM8018_SMPS5, &pm8018_smps, "vdd_s5" }, |
|
|
|
{ "l2", QCOM_RPM_PM8018_LDO2, &pm8018_pldo, "vdd_l2" }, |
|
{ "l3", QCOM_RPM_PM8018_LDO3, &pm8018_pldo, "vdd_l3" }, |
|
{ "l4", QCOM_RPM_PM8018_LDO4, &pm8018_pldo, "vdd_l4" }, |
|
{ "l5", QCOM_RPM_PM8018_LDO5, &pm8018_pldo, "vdd_l5" }, |
|
{ "l6", QCOM_RPM_PM8018_LDO6, &pm8018_pldo, "vdd_l7" }, |
|
{ "l7", QCOM_RPM_PM8018_LDO7, &pm8018_pldo, "vdd_l7" }, |
|
{ "l8", QCOM_RPM_PM8018_LDO8, &pm8018_nldo, "vdd_l8" }, |
|
{ "l9", QCOM_RPM_PM8018_LDO9, &pm8921_nldo1200, |
|
"vdd_l9_l10_l11_l12" }, |
|
{ "l10", QCOM_RPM_PM8018_LDO10, &pm8018_nldo, "vdd_l9_l10_l11_l12" }, |
|
{ "l11", QCOM_RPM_PM8018_LDO11, &pm8018_nldo, "vdd_l9_l10_l11_l12" }, |
|
{ "l12", QCOM_RPM_PM8018_LDO12, &pm8018_nldo, "vdd_l9_l10_l11_l12" }, |
|
{ "l14", QCOM_RPM_PM8018_LDO14, &pm8018_pldo, "vdd_l14" }, |
|
|
|
{ "lvs1", QCOM_RPM_PM8018_LVS1, &pm8018_switch, "lvs1_in" }, |
|
|
|
{ } |
|
}; |
|
|
|
static const struct rpm_regulator_data rpm_pm8058_regulators[] = { |
|
{ "l0", QCOM_RPM_PM8058_LDO0, &pm8058_nldo, "vdd_l0_l1_lvs" }, |
|
{ "l1", QCOM_RPM_PM8058_LDO1, &pm8058_nldo, "vdd_l0_l1_lvs" }, |
|
{ "l2", QCOM_RPM_PM8058_LDO2, &pm8058_pldo, "vdd_l2_l11_l12" }, |
|
{ "l3", QCOM_RPM_PM8058_LDO3, &pm8058_pldo, "vdd_l3_l4_l5" }, |
|
{ "l4", QCOM_RPM_PM8058_LDO4, &pm8058_pldo, "vdd_l3_l4_l5" }, |
|
{ "l5", QCOM_RPM_PM8058_LDO5, &pm8058_pldo, "vdd_l3_l4_l5" }, |
|
{ "l6", QCOM_RPM_PM8058_LDO6, &pm8058_pldo, "vdd_l6_l7" }, |
|
{ "l7", QCOM_RPM_PM8058_LDO7, &pm8058_pldo, "vdd_l6_l7" }, |
|
{ "l8", QCOM_RPM_PM8058_LDO8, &pm8058_pldo, "vdd_l8" }, |
|
{ "l9", QCOM_RPM_PM8058_LDO9, &pm8058_pldo, "vdd_l9" }, |
|
{ "l10", QCOM_RPM_PM8058_LDO10, &pm8058_pldo, "vdd_l10" }, |
|
{ "l11", QCOM_RPM_PM8058_LDO11, &pm8058_pldo, "vdd_l2_l11_l12" }, |
|
{ "l12", QCOM_RPM_PM8058_LDO12, &pm8058_pldo, "vdd_l2_l11_l12" }, |
|
{ "l13", QCOM_RPM_PM8058_LDO13, &pm8058_pldo, "vdd_l13_l16" }, |
|
{ "l14", QCOM_RPM_PM8058_LDO14, &pm8058_pldo, "vdd_l14_l15" }, |
|
{ "l15", QCOM_RPM_PM8058_LDO15, &pm8058_pldo, "vdd_l14_l15" }, |
|
{ "l16", QCOM_RPM_PM8058_LDO16, &pm8058_pldo, "vdd_l13_l16" }, |
|
{ "l17", QCOM_RPM_PM8058_LDO17, &pm8058_pldo, "vdd_l17_l18" }, |
|
{ "l18", QCOM_RPM_PM8058_LDO18, &pm8058_pldo, "vdd_l17_l18" }, |
|
{ "l19", QCOM_RPM_PM8058_LDO19, &pm8058_pldo, "vdd_l19_l20" }, |
|
{ "l20", QCOM_RPM_PM8058_LDO20, &pm8058_pldo, "vdd_l19_l20" }, |
|
{ "l21", QCOM_RPM_PM8058_LDO21, &pm8058_nldo, "vdd_l21" }, |
|
{ "l22", QCOM_RPM_PM8058_LDO22, &pm8058_nldo, "vdd_l22" }, |
|
{ "l23", QCOM_RPM_PM8058_LDO23, &pm8058_nldo, "vdd_l23_l24_l25" }, |
|
{ "l24", QCOM_RPM_PM8058_LDO24, &pm8058_nldo, "vdd_l23_l24_l25" }, |
|
{ "l25", QCOM_RPM_PM8058_LDO25, &pm8058_nldo, "vdd_l23_l24_l25" }, |
|
|
|
{ "s0", QCOM_RPM_PM8058_SMPS0, &pm8058_smps, "vdd_s0" }, |
|
{ "s1", QCOM_RPM_PM8058_SMPS1, &pm8058_smps, "vdd_s1" }, |
|
{ "s2", QCOM_RPM_PM8058_SMPS2, &pm8058_smps, "vdd_s2" }, |
|
{ "s3", QCOM_RPM_PM8058_SMPS3, &pm8058_smps, "vdd_s3" }, |
|
{ "s4", QCOM_RPM_PM8058_SMPS4, &pm8058_smps, "vdd_s4" }, |
|
|
|
{ "lvs0", QCOM_RPM_PM8058_LVS0, &pm8058_switch, "vdd_l0_l1_lvs" }, |
|
{ "lvs1", QCOM_RPM_PM8058_LVS1, &pm8058_switch, "vdd_l0_l1_lvs" }, |
|
|
|
{ "ncp", QCOM_RPM_PM8058_NCP, &pm8058_ncp, "vdd_ncp" }, |
|
{ } |
|
}; |
|
|
|
static const struct rpm_regulator_data rpm_pm8901_regulators[] = { |
|
{ "l0", QCOM_RPM_PM8901_LDO0, &pm8901_nldo, "vdd_l0" }, |
|
{ "l1", QCOM_RPM_PM8901_LDO1, &pm8901_pldo, "vdd_l1" }, |
|
{ "l2", QCOM_RPM_PM8901_LDO2, &pm8901_pldo, "vdd_l2" }, |
|
{ "l3", QCOM_RPM_PM8901_LDO3, &pm8901_pldo, "vdd_l3" }, |
|
{ "l4", QCOM_RPM_PM8901_LDO4, &pm8901_pldo, "vdd_l4" }, |
|
{ "l5", QCOM_RPM_PM8901_LDO5, &pm8901_pldo, "vdd_l5" }, |
|
{ "l6", QCOM_RPM_PM8901_LDO6, &pm8901_pldo, "vdd_l6" }, |
|
|
|
{ "s0", QCOM_RPM_PM8901_SMPS0, &pm8901_ftsmps, "vdd_s0" }, |
|
{ "s1", QCOM_RPM_PM8901_SMPS1, &pm8901_ftsmps, "vdd_s1" }, |
|
{ "s2", QCOM_RPM_PM8901_SMPS2, &pm8901_ftsmps, "vdd_s2" }, |
|
{ "s3", QCOM_RPM_PM8901_SMPS3, &pm8901_ftsmps, "vdd_s3" }, |
|
{ "s4", QCOM_RPM_PM8901_SMPS4, &pm8901_ftsmps, "vdd_s4" }, |
|
|
|
{ "lvs0", QCOM_RPM_PM8901_LVS0, &pm8901_switch, "lvs0_in" }, |
|
{ "lvs1", QCOM_RPM_PM8901_LVS1, &pm8901_switch, "lvs1_in" }, |
|
{ "lvs2", QCOM_RPM_PM8901_LVS2, &pm8901_switch, "lvs2_in" }, |
|
{ "lvs3", QCOM_RPM_PM8901_LVS3, &pm8901_switch, "lvs3_in" }, |
|
|
|
{ "mvs", QCOM_RPM_PM8901_MVS, &pm8901_switch, "mvs_in" }, |
|
{ } |
|
}; |
|
|
|
static const struct rpm_regulator_data rpm_pm8921_regulators[] = { |
|
{ "s1", QCOM_RPM_PM8921_SMPS1, &pm8921_smps, "vdd_s1" }, |
|
{ "s2", QCOM_RPM_PM8921_SMPS2, &pm8921_smps, "vdd_s2" }, |
|
{ "s3", QCOM_RPM_PM8921_SMPS3, &pm8921_smps }, |
|
{ "s4", QCOM_RPM_PM8921_SMPS4, &pm8921_smps, "vdd_s4" }, |
|
{ "s7", QCOM_RPM_PM8921_SMPS7, &pm8921_smps, "vdd_s7" }, |
|
{ "s8", QCOM_RPM_PM8921_SMPS8, &pm8921_smps, "vdd_s8" }, |
|
|
|
{ "l1", QCOM_RPM_PM8921_LDO1, &pm8921_nldo, "vdd_l1_l2_l12_l18" }, |
|
{ "l2", QCOM_RPM_PM8921_LDO2, &pm8921_nldo, "vdd_l1_l2_l12_l18" }, |
|
{ "l3", QCOM_RPM_PM8921_LDO3, &pm8921_pldo, "vdd_l3_l15_l17" }, |
|
{ "l4", QCOM_RPM_PM8921_LDO4, &pm8921_pldo, "vdd_l4_l14" }, |
|
{ "l5", QCOM_RPM_PM8921_LDO5, &pm8921_pldo, "vdd_l5_l8_l16" }, |
|
{ "l6", QCOM_RPM_PM8921_LDO6, &pm8921_pldo, "vdd_l6_l7" }, |
|
{ "l7", QCOM_RPM_PM8921_LDO7, &pm8921_pldo, "vdd_l6_l7" }, |
|
{ "l8", QCOM_RPM_PM8921_LDO8, &pm8921_pldo, "vdd_l5_l8_l16" }, |
|
{ "l9", QCOM_RPM_PM8921_LDO9, &pm8921_pldo, "vdd_l9_l11" }, |
|
{ "l10", QCOM_RPM_PM8921_LDO10, &pm8921_pldo, "vdd_l10_l22" }, |
|
{ "l11", QCOM_RPM_PM8921_LDO11, &pm8921_pldo, "vdd_l9_l11" }, |
|
{ "l12", QCOM_RPM_PM8921_LDO12, &pm8921_nldo, "vdd_l1_l2_l12_l18" }, |
|
{ "l14", QCOM_RPM_PM8921_LDO14, &pm8921_pldo, "vdd_l4_l14" }, |
|
{ "l15", QCOM_RPM_PM8921_LDO15, &pm8921_pldo, "vdd_l3_l15_l17" }, |
|
{ "l16", QCOM_RPM_PM8921_LDO16, &pm8921_pldo, "vdd_l5_l8_l16" }, |
|
{ "l17", QCOM_RPM_PM8921_LDO17, &pm8921_pldo, "vdd_l3_l15_l17" }, |
|
{ "l18", QCOM_RPM_PM8921_LDO18, &pm8921_nldo, "vdd_l1_l2_l12_l18" }, |
|
{ "l21", QCOM_RPM_PM8921_LDO21, &pm8921_pldo, "vdd_l21_l23_l29" }, |
|
{ "l22", QCOM_RPM_PM8921_LDO22, &pm8921_pldo, "vdd_l10_l22" }, |
|
{ "l23", QCOM_RPM_PM8921_LDO23, &pm8921_pldo, "vdd_l21_l23_l29" }, |
|
{ "l24", QCOM_RPM_PM8921_LDO24, &pm8921_nldo1200, "vdd_l24" }, |
|
{ "l25", QCOM_RPM_PM8921_LDO25, &pm8921_nldo1200, "vdd_l25" }, |
|
{ "l26", QCOM_RPM_PM8921_LDO26, &pm8921_nldo1200, "vdd_l26" }, |
|
{ "l27", QCOM_RPM_PM8921_LDO27, &pm8921_nldo1200, "vdd_l27" }, |
|
{ "l28", QCOM_RPM_PM8921_LDO28, &pm8921_nldo1200, "vdd_l28" }, |
|
{ "l29", QCOM_RPM_PM8921_LDO29, &pm8921_pldo, "vdd_l21_l23_l29" }, |
|
|
|
{ "lvs1", QCOM_RPM_PM8921_LVS1, &pm8921_switch, "vin_lvs1_3_6" }, |
|
{ "lvs2", QCOM_RPM_PM8921_LVS2, &pm8921_switch, "vin_lvs2" }, |
|
{ "lvs3", QCOM_RPM_PM8921_LVS3, &pm8921_switch, "vin_lvs1_3_6" }, |
|
{ "lvs4", QCOM_RPM_PM8921_LVS4, &pm8921_switch, "vin_lvs4_5_7" }, |
|
{ "lvs5", QCOM_RPM_PM8921_LVS5, &pm8921_switch, "vin_lvs4_5_7" }, |
|
{ "lvs6", QCOM_RPM_PM8921_LVS6, &pm8921_switch, "vin_lvs1_3_6" }, |
|
{ "lvs7", QCOM_RPM_PM8921_LVS7, &pm8921_switch, "vin_lvs4_5_7" }, |
|
|
|
{ "usb-switch", QCOM_RPM_USB_OTG_SWITCH, &pm8921_switch, "vin_5vs" }, |
|
{ "hdmi-switch", QCOM_RPM_HDMI_SWITCH, &pm8921_switch, "vin_5vs" }, |
|
{ "ncp", QCOM_RPM_PM8921_NCP, &pm8921_ncp, "vdd_ncp" }, |
|
{ } |
|
}; |
|
|
|
static const struct rpm_regulator_data rpm_smb208_regulators[] = { |
|
{ "s1a", QCOM_RPM_SMB208_S1a, &smb208_smps, "vin_s1a" }, |
|
{ "s1b", QCOM_RPM_SMB208_S1b, &smb208_smps, "vin_s1b" }, |
|
{ "s2a", QCOM_RPM_SMB208_S2a, &smb208_smps, "vin_s2a" }, |
|
{ "s2b", QCOM_RPM_SMB208_S2b, &smb208_smps, "vin_s2b" }, |
|
{ } |
|
}; |
|
|
|
static const struct of_device_id rpm_of_match[] = { |
|
{ .compatible = "qcom,rpm-pm8018-regulators", |
|
.data = &rpm_pm8018_regulators }, |
|
{ .compatible = "qcom,rpm-pm8058-regulators", .data = &rpm_pm8058_regulators }, |
|
{ .compatible = "qcom,rpm-pm8901-regulators", .data = &rpm_pm8901_regulators }, |
|
{ .compatible = "qcom,rpm-pm8921-regulators", .data = &rpm_pm8921_regulators }, |
|
{ .compatible = "qcom,rpm-smb208-regulators", .data = &rpm_smb208_regulators }, |
|
{ } |
|
}; |
|
MODULE_DEVICE_TABLE(of, rpm_of_match); |
|
|
|
static int rpm_reg_probe(struct platform_device *pdev) |
|
{ |
|
const struct rpm_regulator_data *reg; |
|
const struct of_device_id *match; |
|
struct regulator_config config = { }; |
|
struct regulator_dev *rdev; |
|
struct qcom_rpm_reg *vreg; |
|
struct qcom_rpm *rpm; |
|
|
|
rpm = dev_get_drvdata(pdev->dev.parent); |
|
if (!rpm) { |
|
dev_err(&pdev->dev, "unable to retrieve handle to rpm\n"); |
|
return -ENODEV; |
|
} |
|
|
|
match = of_match_device(rpm_of_match, &pdev->dev); |
|
if (!match) { |
|
dev_err(&pdev->dev, "failed to match device\n"); |
|
return -ENODEV; |
|
} |
|
|
|
for (reg = match->data; reg->name; reg++) { |
|
vreg = devm_kmalloc(&pdev->dev, sizeof(*vreg), GFP_KERNEL); |
|
if (!vreg) |
|
return -ENOMEM; |
|
|
|
memcpy(vreg, reg->template, sizeof(*vreg)); |
|
mutex_init(&vreg->lock); |
|
|
|
vreg->dev = &pdev->dev; |
|
vreg->resource = reg->resource; |
|
vreg->rpm = rpm; |
|
|
|
vreg->desc.id = -1; |
|
vreg->desc.owner = THIS_MODULE; |
|
vreg->desc.type = REGULATOR_VOLTAGE; |
|
vreg->desc.name = reg->name; |
|
vreg->desc.supply_name = reg->supply; |
|
vreg->desc.of_match = reg->name; |
|
vreg->desc.of_parse_cb = rpm_reg_of_parse; |
|
|
|
config.dev = &pdev->dev; |
|
config.driver_data = vreg; |
|
rdev = devm_regulator_register(&pdev->dev, &vreg->desc, &config); |
|
if (IS_ERR(rdev)) { |
|
dev_err(&pdev->dev, "failed to register %s\n", reg->name); |
|
return PTR_ERR(rdev); |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static struct platform_driver rpm_reg_driver = { |
|
.probe = rpm_reg_probe, |
|
.driver = { |
|
.name = "qcom_rpm_reg", |
|
.of_match_table = of_match_ptr(rpm_of_match), |
|
}, |
|
}; |
|
|
|
static int __init rpm_reg_init(void) |
|
{ |
|
return platform_driver_register(&rpm_reg_driver); |
|
} |
|
subsys_initcall(rpm_reg_init); |
|
|
|
static void __exit rpm_reg_exit(void) |
|
{ |
|
platform_driver_unregister(&rpm_reg_driver); |
|
} |
|
module_exit(rpm_reg_exit) |
|
|
|
MODULE_DESCRIPTION("Qualcomm RPM regulator driver"); |
|
MODULE_LICENSE("GPL v2");
|
|
|