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2ca76b3e49
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.
Deterministic algorithm:
For each file:
If not .svg:
For each line:
If doesn't contain `\bxmlns\b`:
For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
If both the HTTP and HTTPS versions
return 200 OK and serve the same content:
Replace HTTP with HTTPS.
Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200719200623.61524-1-grandmaster@al2klimov.de
Signed-off-by: Mark Brown <broonie@kernel.org>
211 lines
5.7 KiB
C
211 lines
5.7 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// Device driver for regulators in Hi6421V530 IC
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//
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// Copyright (c) <2017> HiSilicon Technologies Co., Ltd.
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// http://www.hisilicon.com
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// Copyright (c) <2017> Linaro Ltd.
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// https://www.linaro.org
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//
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// Author: Wang Xiaoyin <hw.wangxiaoyin@hisilicon.com>
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// Guodong Xu <guodong.xu@linaro.org>
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#include <linux/mfd/hi6421-pmic.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <linux/regmap.h>
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#include <linux/regulator/driver.h>
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/*
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* struct hi6421v530_regulator_info - hi6421v530 regulator information
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* @desc: regulator description
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* @mode_mask: ECO mode bitmask of LDOs; for BUCKs, this masks sleep
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* @eco_microamp: eco mode load upper limit (in uA), valid for LDOs only
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*/
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struct hi6421v530_regulator_info {
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struct regulator_desc rdesc;
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u8 mode_mask;
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u32 eco_microamp;
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};
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/* HI6421v530 regulators */
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enum hi6421v530_regulator_id {
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HI6421V530_LDO3,
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HI6421V530_LDO9,
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HI6421V530_LDO11,
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HI6421V530_LDO15,
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HI6421V530_LDO16,
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};
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static const unsigned int ldo_3_voltages[] = {
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1800000, 1825000, 1850000, 1875000,
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1900000, 1925000, 1950000, 1975000,
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2000000, 2025000, 2050000, 2075000,
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2100000, 2125000, 2150000, 2200000,
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};
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static const unsigned int ldo_9_11_voltages[] = {
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1750000, 1800000, 1825000, 2800000,
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2850000, 2950000, 3000000, 3300000,
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};
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static const unsigned int ldo_15_16_voltages[] = {
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1750000, 1800000, 2400000, 2600000,
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2700000, 2850000, 2950000, 3000000,
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};
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static const struct regulator_ops hi6421v530_ldo_ops;
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#define HI6421V530_LDO_ENABLE_TIME (350)
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/*
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* _id - LDO id name string
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* v_table - voltage table
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* vreg - voltage select register
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* vmask - voltage select mask
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* ereg - enable register
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* emask - enable mask
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* odelay - off/on delay time in uS
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* ecomask - eco mode mask
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* ecoamp - eco mode load uppler limit in uA
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*/
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#define HI6421V530_LDO(_ID, v_table, vreg, vmask, ereg, emask, \
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odelay, ecomask, ecoamp) { \
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.rdesc = { \
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.name = #_ID, \
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.of_match = of_match_ptr(#_ID), \
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.regulators_node = of_match_ptr("regulators"), \
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.ops = &hi6421v530_ldo_ops, \
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.type = REGULATOR_VOLTAGE, \
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.id = HI6421V530_##_ID, \
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.owner = THIS_MODULE, \
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.n_voltages = ARRAY_SIZE(v_table), \
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.volt_table = v_table, \
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.vsel_reg = HI6421_REG_TO_BUS_ADDR(vreg), \
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.vsel_mask = vmask, \
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.enable_reg = HI6421_REG_TO_BUS_ADDR(ereg), \
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.enable_mask = emask, \
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.enable_time = HI6421V530_LDO_ENABLE_TIME, \
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.off_on_delay = odelay, \
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}, \
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.mode_mask = ecomask, \
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.eco_microamp = ecoamp, \
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}
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/* HI6421V530 regulator information */
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static struct hi6421v530_regulator_info hi6421v530_regulator_info[] = {
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HI6421V530_LDO(LDO3, ldo_3_voltages, 0x061, 0xf, 0x060, 0x2,
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20000, 0x6, 8000),
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HI6421V530_LDO(LDO9, ldo_9_11_voltages, 0x06b, 0x7, 0x06a, 0x2,
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40000, 0x6, 8000),
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HI6421V530_LDO(LDO11, ldo_9_11_voltages, 0x06f, 0x7, 0x06e, 0x2,
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40000, 0x6, 8000),
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HI6421V530_LDO(LDO15, ldo_15_16_voltages, 0x077, 0x7, 0x076, 0x2,
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40000, 0x6, 8000),
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HI6421V530_LDO(LDO16, ldo_15_16_voltages, 0x079, 0x7, 0x078, 0x2,
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40000, 0x6, 8000),
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};
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static unsigned int hi6421v530_regulator_ldo_get_mode(
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struct regulator_dev *rdev)
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{
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struct hi6421v530_regulator_info *info;
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unsigned int reg_val;
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info = rdev_get_drvdata(rdev);
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regmap_read(rdev->regmap, rdev->desc->enable_reg, ®_val);
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if (reg_val & (info->mode_mask))
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return REGULATOR_MODE_IDLE;
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return REGULATOR_MODE_NORMAL;
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}
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static int hi6421v530_regulator_ldo_set_mode(struct regulator_dev *rdev,
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unsigned int mode)
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{
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struct hi6421v530_regulator_info *info;
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unsigned int new_mode;
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info = rdev_get_drvdata(rdev);
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switch (mode) {
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case REGULATOR_MODE_NORMAL:
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new_mode = 0;
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break;
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case REGULATOR_MODE_IDLE:
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new_mode = info->mode_mask;
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break;
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default:
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return -EINVAL;
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}
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regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
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info->mode_mask, new_mode);
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return 0;
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}
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static const struct regulator_ops hi6421v530_ldo_ops = {
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.is_enabled = regulator_is_enabled_regmap,
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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.list_voltage = regulator_list_voltage_table,
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.map_voltage = regulator_map_voltage_ascend,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.get_mode = hi6421v530_regulator_ldo_get_mode,
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.set_mode = hi6421v530_regulator_ldo_set_mode,
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};
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static int hi6421v530_regulator_probe(struct platform_device *pdev)
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{
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struct hi6421_pmic *pmic;
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struct regulator_dev *rdev;
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struct regulator_config config = { };
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unsigned int i;
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pmic = dev_get_drvdata(pdev->dev.parent);
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if (!pmic) {
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dev_err(&pdev->dev, "no pmic in the regulator parent node\n");
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return -ENODEV;
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}
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for (i = 0; i < ARRAY_SIZE(hi6421v530_regulator_info); i++) {
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config.dev = pdev->dev.parent;
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config.regmap = pmic->regmap;
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config.driver_data = &hi6421v530_regulator_info[i];
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rdev = devm_regulator_register(&pdev->dev,
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&hi6421v530_regulator_info[i].rdesc,
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&config);
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if (IS_ERR(rdev)) {
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dev_err(&pdev->dev, "failed to register regulator %s\n",
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hi6421v530_regulator_info[i].rdesc.name);
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return PTR_ERR(rdev);
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}
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}
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return 0;
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}
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static const struct platform_device_id hi6421v530_regulator_table[] = {
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{ .name = "hi6421v530-regulator" },
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{},
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};
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MODULE_DEVICE_TABLE(platform, hi6421v530_regulator_table);
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static struct platform_driver hi6421v530_regulator_driver = {
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.id_table = hi6421v530_regulator_table,
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.driver = {
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.name = "hi6421v530-regulator",
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},
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.probe = hi6421v530_regulator_probe,
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};
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module_platform_driver(hi6421v530_regulator_driver);
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MODULE_AUTHOR("Wang Xiaoyin <hw.wangxiaoyin@hisilicon.com>");
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MODULE_DESCRIPTION("Hi6421v530 regulator driver");
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MODULE_LICENSE("GPL v2");
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