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259b93b21a
Probing of regulators can be a slow operation and can contribute to slower boot times. This is especially true if a regulator is turned on at probe time (with regulator-boot-on or regulator-always-on) and the regulator requires delays (off-on-time, ramp time, etc). While the overall kernel is not ready to switch to async probe by default, as per the discussion on the mailing lists [1] it is believed that the regulator subsystem is in good shape and we can move regulator drivers over wholesale. There is no way to just magically opt in all regulators (regulators are just normal drivers like platform_driver), so we set PROBE_PREFER_ASYNCHRONOUS for all regulators found in 'drivers/regulator' individually. Given the number of drivers touched and the impossibility to test this ahead of time, it wouldn't be shocking at all if this caused a regression for someone. If there is a regression caused by this patch, it's likely to be one of the cases talked about in [1]. As a "quick fix", drivers involved in the regression could be fixed by changing them to PROBE_FORCE_SYNCHRONOUS. That being said, the correct fix would be to directly fix the problem that caused the issue with async probe. The approach here follows a similar approach that was used for the mmc subsystem several years ago [2]. In fact, I ran nearly the same python script to auto-generate the changes. The only thing I changed was to search for "i2c_driver", "spmi_driver", and "spi_driver" in addition to "platform_driver". [1] https://lore.kernel.org/r/06db017f-e985-4434-8d1d-02ca2100cca0@sirena.org.uk [2] https://lore.kernel.org/r/20200903232441.2694866-1-dianders@chromium.org/ Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20230316125351.1.I2a4677392a38db5758dee0788b2cea5872562a82@changeid Signed-off-by: Mark Brown <broonie@kernel.org>
1013 lines
29 KiB
C
1013 lines
29 KiB
C
// 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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#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,
|
|
.desc.ops = &uV_ops,
|
|
.parts = &rpm8960_smps_parts,
|
|
.supports_force_mode_auto = false,
|
|
.supports_force_mode_bypass = false,
|
|
};
|
|
|
|
static const struct qcom_rpm_reg pm8018_switch = {
|
|
.desc.ops = &switch_ops,
|
|
.parts = &rpm8960_switch_parts,
|
|
};
|
|
|
|
/*
|
|
* PM8058 regulators
|
|
*/
|
|
static const struct qcom_rpm_reg pm8058_pldo = {
|
|
.desc.linear_ranges = pldo_ranges,
|
|
.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges),
|
|
.desc.n_voltages = 161,
|
|
.desc.ops = &mV_ops,
|
|
.parts = &rpm8660_ldo_parts,
|
|
.supports_force_mode_auto = false,
|
|
.supports_force_mode_bypass = false,
|
|
};
|
|
|
|
static const struct qcom_rpm_reg pm8058_nldo = {
|
|
.desc.linear_ranges = nldo_ranges,
|
|
.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges),
|
|
.desc.n_voltages = 64,
|
|
.desc.ops = &mV_ops,
|
|
.parts = &rpm8660_ldo_parts,
|
|
.supports_force_mode_auto = false,
|
|
.supports_force_mode_bypass = false,
|
|
};
|
|
|
|
static const struct qcom_rpm_reg pm8058_smps = {
|
|
.desc.linear_ranges = smps_ranges,
|
|
.desc.n_linear_ranges = ARRAY_SIZE(smps_ranges),
|
|
.desc.n_voltages = 154,
|
|
.desc.ops = &mV_ops,
|
|
.parts = &rpm8660_smps_parts,
|
|
.supports_force_mode_auto = false,
|
|
.supports_force_mode_bypass = false,
|
|
};
|
|
|
|
static const struct qcom_rpm_reg pm8058_ncp = {
|
|
.desc.linear_ranges = ncp_ranges,
|
|
.desc.n_linear_ranges = ARRAY_SIZE(ncp_ranges),
|
|
.desc.n_voltages = 32,
|
|
.desc.ops = &mV_ops,
|
|
.parts = &rpm8660_ncp_parts,
|
|
};
|
|
|
|
static const struct qcom_rpm_reg pm8058_switch = {
|
|
.desc.ops = &switch_ops,
|
|
.parts = &rpm8660_switch_parts,
|
|
};
|
|
|
|
/*
|
|
* PM8901 regulators
|
|
*/
|
|
static const struct qcom_rpm_reg pm8901_pldo = {
|
|
.desc.linear_ranges = pldo_ranges,
|
|
.desc.n_linear_ranges = ARRAY_SIZE(pldo_ranges),
|
|
.desc.n_voltages = 161,
|
|
.desc.ops = &mV_ops,
|
|
.parts = &rpm8660_ldo_parts,
|
|
.supports_force_mode_auto = false,
|
|
.supports_force_mode_bypass = true,
|
|
};
|
|
|
|
static const struct qcom_rpm_reg pm8901_nldo = {
|
|
.desc.linear_ranges = nldo_ranges,
|
|
.desc.n_linear_ranges = ARRAY_SIZE(nldo_ranges),
|
|
.desc.n_voltages = 64,
|
|
.desc.ops = &mV_ops,
|
|
.parts = &rpm8660_ldo_parts,
|
|
.supports_force_mode_auto = false,
|
|
.supports_force_mode_bypass = true,
|
|
};
|
|
|
|
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[] = {
|
|
{ "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" },
|
|
|
|
{ "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" },
|
|
|
|
{ "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[] = {
|
|
{ "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" },
|
|
|
|
{ "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" },
|
|
|
|
{ "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",
|
|
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
|
|
.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");
|