mirror of
https://github.com/torvalds/linux.git
synced 2024-11-27 06:31:52 +00:00
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
|
|
//
|
|
// Device driver for regulators in Hi6421V530 IC
|
|
//
|
|
// Copyright (c) <2017> HiSilicon Technologies Co., Ltd.
|
|
// http://www.hisilicon.com
|
|
// Copyright (c) <2017> Linaro Ltd.
|
|
// https://www.linaro.org
|
|
//
|
|
// Author: Wang Xiaoyin <hw.wangxiaoyin@hisilicon.com>
|
|
// Guodong Xu <guodong.xu@linaro.org>
|
|
|
|
#include <linux/mfd/hi6421-pmic.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/regmap.h>
|
|
#include <linux/regulator/driver.h>
|
|
|
|
/*
|
|
* struct hi6421v530_regulator_info - hi6421v530 regulator information
|
|
* @desc: regulator description
|
|
* @mode_mask: ECO mode bitmask of LDOs; for BUCKs, this masks sleep
|
|
* @eco_microamp: eco mode load upper limit (in uA), valid for LDOs only
|
|
*/
|
|
struct hi6421v530_regulator_info {
|
|
struct regulator_desc rdesc;
|
|
u8 mode_mask;
|
|
u32 eco_microamp;
|
|
};
|
|
|
|
/* HI6421v530 regulators */
|
|
enum hi6421v530_regulator_id {
|
|
HI6421V530_LDO3,
|
|
HI6421V530_LDO9,
|
|
HI6421V530_LDO11,
|
|
HI6421V530_LDO15,
|
|
HI6421V530_LDO16,
|
|
};
|
|
|
|
static const unsigned int ldo_3_voltages[] = {
|
|
1800000, 1825000, 1850000, 1875000,
|
|
1900000, 1925000, 1950000, 1975000,
|
|
2000000, 2025000, 2050000, 2075000,
|
|
2100000, 2125000, 2150000, 2200000,
|
|
};
|
|
|
|
static const unsigned int ldo_9_11_voltages[] = {
|
|
1750000, 1800000, 1825000, 2800000,
|
|
2850000, 2950000, 3000000, 3300000,
|
|
};
|
|
|
|
static const unsigned int ldo_15_16_voltages[] = {
|
|
1750000, 1800000, 2400000, 2600000,
|
|
2700000, 2850000, 2950000, 3000000,
|
|
};
|
|
|
|
static const struct regulator_ops hi6421v530_ldo_ops;
|
|
|
|
#define HI6421V530_LDO_ENABLE_TIME (350)
|
|
|
|
/*
|
|
* _id - LDO id name string
|
|
* v_table - voltage table
|
|
* vreg - voltage select register
|
|
* vmask - voltage select mask
|
|
* ereg - enable register
|
|
* emask - enable mask
|
|
* odelay - off/on delay time in uS
|
|
* ecomask - eco mode mask
|
|
* ecoamp - eco mode load uppler limit in uA
|
|
*/
|
|
#define HI6421V530_LDO(_ID, v_table, vreg, vmask, ereg, emask, \
|
|
odelay, ecomask, ecoamp) { \
|
|
.rdesc = { \
|
|
.name = #_ID, \
|
|
.of_match = of_match_ptr(#_ID), \
|
|
.regulators_node = of_match_ptr("regulators"), \
|
|
.ops = &hi6421v530_ldo_ops, \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
.id = HI6421V530_##_ID, \
|
|
.owner = THIS_MODULE, \
|
|
.n_voltages = ARRAY_SIZE(v_table), \
|
|
.volt_table = v_table, \
|
|
.vsel_reg = HI6421_REG_TO_BUS_ADDR(vreg), \
|
|
.vsel_mask = vmask, \
|
|
.enable_reg = HI6421_REG_TO_BUS_ADDR(ereg), \
|
|
.enable_mask = emask, \
|
|
.enable_time = HI6421V530_LDO_ENABLE_TIME, \
|
|
.off_on_delay = odelay, \
|
|
}, \
|
|
.mode_mask = ecomask, \
|
|
.eco_microamp = ecoamp, \
|
|
}
|
|
|
|
/* HI6421V530 regulator information */
|
|
|
|
static struct hi6421v530_regulator_info hi6421v530_regulator_info[] = {
|
|
HI6421V530_LDO(LDO3, ldo_3_voltages, 0x061, 0xf, 0x060, 0x2,
|
|
20000, 0x6, 8000),
|
|
HI6421V530_LDO(LDO9, ldo_9_11_voltages, 0x06b, 0x7, 0x06a, 0x2,
|
|
40000, 0x6, 8000),
|
|
HI6421V530_LDO(LDO11, ldo_9_11_voltages, 0x06f, 0x7, 0x06e, 0x2,
|
|
40000, 0x6, 8000),
|
|
HI6421V530_LDO(LDO15, ldo_15_16_voltages, 0x077, 0x7, 0x076, 0x2,
|
|
40000, 0x6, 8000),
|
|
HI6421V530_LDO(LDO16, ldo_15_16_voltages, 0x079, 0x7, 0x078, 0x2,
|
|
40000, 0x6, 8000),
|
|
};
|
|
|
|
static unsigned int hi6421v530_regulator_ldo_get_mode(
|
|
struct regulator_dev *rdev)
|
|
{
|
|
struct hi6421v530_regulator_info *info;
|
|
unsigned int reg_val;
|
|
|
|
info = rdev_get_drvdata(rdev);
|
|
regmap_read(rdev->regmap, rdev->desc->enable_reg, ®_val);
|
|
|
|
if (reg_val & (info->mode_mask))
|
|
return REGULATOR_MODE_IDLE;
|
|
|
|
return REGULATOR_MODE_NORMAL;
|
|
}
|
|
|
|
static int hi6421v530_regulator_ldo_set_mode(struct regulator_dev *rdev,
|
|
unsigned int mode)
|
|
{
|
|
struct hi6421v530_regulator_info *info;
|
|
unsigned int new_mode;
|
|
|
|
info = rdev_get_drvdata(rdev);
|
|
switch (mode) {
|
|
case REGULATOR_MODE_NORMAL:
|
|
new_mode = 0;
|
|
break;
|
|
case REGULATOR_MODE_IDLE:
|
|
new_mode = info->mode_mask;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
|
|
info->mode_mask, new_mode);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static const struct regulator_ops hi6421v530_ldo_ops = {
|
|
.is_enabled = regulator_is_enabled_regmap,
|
|
.enable = regulator_enable_regmap,
|
|
.disable = regulator_disable_regmap,
|
|
.list_voltage = regulator_list_voltage_table,
|
|
.map_voltage = regulator_map_voltage_ascend,
|
|
.get_voltage_sel = regulator_get_voltage_sel_regmap,
|
|
.set_voltage_sel = regulator_set_voltage_sel_regmap,
|
|
.get_mode = hi6421v530_regulator_ldo_get_mode,
|
|
.set_mode = hi6421v530_regulator_ldo_set_mode,
|
|
};
|
|
|
|
static int hi6421v530_regulator_probe(struct platform_device *pdev)
|
|
{
|
|
struct hi6421_pmic *pmic;
|
|
struct regulator_dev *rdev;
|
|
struct regulator_config config = { };
|
|
unsigned int i;
|
|
|
|
pmic = dev_get_drvdata(pdev->dev.parent);
|
|
if (!pmic) {
|
|
dev_err(&pdev->dev, "no pmic in the regulator parent node\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
for (i = 0; i < ARRAY_SIZE(hi6421v530_regulator_info); i++) {
|
|
config.dev = pdev->dev.parent;
|
|
config.regmap = pmic->regmap;
|
|
config.driver_data = &hi6421v530_regulator_info[i];
|
|
|
|
rdev = devm_regulator_register(&pdev->dev,
|
|
&hi6421v530_regulator_info[i].rdesc,
|
|
&config);
|
|
if (IS_ERR(rdev)) {
|
|
dev_err(&pdev->dev, "failed to register regulator %s\n",
|
|
hi6421v530_regulator_info[i].rdesc.name);
|
|
return PTR_ERR(rdev);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static const struct platform_device_id hi6421v530_regulator_table[] = {
|
|
{ .name = "hi6421v530-regulator" },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(platform, hi6421v530_regulator_table);
|
|
|
|
static struct platform_driver hi6421v530_regulator_driver = {
|
|
.id_table = hi6421v530_regulator_table,
|
|
.driver = {
|
|
.name = "hi6421v530-regulator",
|
|
},
|
|
.probe = hi6421v530_regulator_probe,
|
|
};
|
|
module_platform_driver(hi6421v530_regulator_driver);
|
|
|
|
MODULE_AUTHOR("Wang Xiaoyin <hw.wangxiaoyin@hisilicon.com>");
|
|
MODULE_DESCRIPTION("Hi6421v530 regulator driver");
|
|
MODULE_LICENSE("GPL v2");
|