mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-27 01:11:14 +00:00
6be2305da8
Changelog: * https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.5 Signed-off-by: Jonas Gorski <jogo@openwrt.org> SVN-Revision: 46598
279 lines
9.1 KiB
Diff
279 lines
9.1 KiB
Diff
From f95b73ba272eac5495e69e12795d5ea8bc81d2cd Mon Sep 17 00:00:00 2001
|
|
From: Boris BREZILLON <boris.brezillon@free-electrons.com>
|
|
Date: Fri, 10 Apr 2015 12:09:03 +0800
|
|
Subject: [PATCH] regulator: axp20x: Prepare support for multiple AXP chip
|
|
families
|
|
|
|
Rework the AXP20X_ macros and probe function to support the several chip
|
|
families, so that each family can define it's own set of regulators.
|
|
|
|
Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com>
|
|
[wens@csie.org: Support different DC-DC work frequency ranges]
|
|
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
|
|
Reviewed-by: Mark Brown <broonie@kernel.org>
|
|
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
---
|
|
drivers/regulator/axp20x-regulator.c | 143 +++++++++++++++++++++++------------
|
|
1 file changed, 94 insertions(+), 49 deletions(-)
|
|
|
|
--- a/drivers/regulator/axp20x-regulator.c
|
|
+++ b/drivers/regulator/axp20x-regulator.c
|
|
@@ -32,15 +32,15 @@
|
|
|
|
#define AXP20X_FREQ_DCDC_MASK 0x0f
|
|
|
|
-#define AXP20X_DESC_IO(_id, _match, _supply, _min, _max, _step, _vreg, _vmask, \
|
|
- _ereg, _emask, _enable_val, _disable_val) \
|
|
- [AXP20X_##_id] = { \
|
|
+#define AXP_DESC_IO(_family, _id, _match, _supply, _min, _max, _step, _vreg, \
|
|
+ _vmask, _ereg, _emask, _enable_val, _disable_val) \
|
|
+ [_family##_##_id] = { \
|
|
.name = #_id, \
|
|
.supply_name = (_supply), \
|
|
.of_match = of_match_ptr(_match), \
|
|
.regulators_node = of_match_ptr("regulators"), \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
- .id = AXP20X_##_id, \
|
|
+ .id = _family##_##_id, \
|
|
.n_voltages = (((_max) - (_min)) / (_step) + 1), \
|
|
.owner = THIS_MODULE, \
|
|
.min_uV = (_min) * 1000, \
|
|
@@ -54,15 +54,15 @@
|
|
.ops = &axp20x_ops, \
|
|
}
|
|
|
|
-#define AXP20X_DESC(_id, _match, _supply, _min, _max, _step, _vreg, _vmask, \
|
|
- _ereg, _emask) \
|
|
- [AXP20X_##_id] = { \
|
|
+#define AXP_DESC(_family, _id, _match, _supply, _min, _max, _step, _vreg, \
|
|
+ _vmask, _ereg, _emask) \
|
|
+ [_family##_##_id] = { \
|
|
.name = #_id, \
|
|
.supply_name = (_supply), \
|
|
.of_match = of_match_ptr(_match), \
|
|
.regulators_node = of_match_ptr("regulators"), \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
- .id = AXP20X_##_id, \
|
|
+ .id = _family##_##_id, \
|
|
.n_voltages = (((_max) - (_min)) / (_step) + 1), \
|
|
.owner = THIS_MODULE, \
|
|
.min_uV = (_min) * 1000, \
|
|
@@ -74,29 +74,29 @@
|
|
.ops = &axp20x_ops, \
|
|
}
|
|
|
|
-#define AXP20X_DESC_FIXED(_id, _match, _supply, _volt) \
|
|
- [AXP20X_##_id] = { \
|
|
+#define AXP_DESC_FIXED(_family, _id, _match, _supply, _volt) \
|
|
+ [_family##_##_id] = { \
|
|
.name = #_id, \
|
|
.supply_name = (_supply), \
|
|
.of_match = of_match_ptr(_match), \
|
|
.regulators_node = of_match_ptr("regulators"), \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
- .id = AXP20X_##_id, \
|
|
+ .id = _family##_##_id, \
|
|
.n_voltages = 1, \
|
|
.owner = THIS_MODULE, \
|
|
.min_uV = (_volt) * 1000, \
|
|
.ops = &axp20x_ops_fixed \
|
|
}
|
|
|
|
-#define AXP20X_DESC_TABLE(_id, _match, _supply, _table, _vreg, _vmask, _ereg, \
|
|
- _emask) \
|
|
- [AXP20X_##_id] = { \
|
|
+#define AXP_DESC_TABLE(_family, _id, _match, _supply, _table, _vreg, _vmask, \
|
|
+ _ereg, _emask) \
|
|
+ [_family##_##_id] = { \
|
|
.name = #_id, \
|
|
.supply_name = (_supply), \
|
|
.of_match = of_match_ptr(_match), \
|
|
.regulators_node = of_match_ptr("regulators"), \
|
|
.type = REGULATOR_VOLTAGE, \
|
|
- .id = AXP20X_##_id, \
|
|
+ .id = _family##_##_id, \
|
|
.n_voltages = ARRAY_SIZE(_table), \
|
|
.owner = THIS_MODULE, \
|
|
.vsel_reg = (_vreg), \
|
|
@@ -136,37 +136,57 @@ static struct regulator_ops axp20x_ops =
|
|
};
|
|
|
|
static const struct regulator_desc axp20x_regulators[] = {
|
|
- AXP20X_DESC(DCDC2, "dcdc2", "vin2", 700, 2275, 25, AXP20X_DCDC2_V_OUT,
|
|
- 0x3f, AXP20X_PWR_OUT_CTRL, 0x10),
|
|
- AXP20X_DESC(DCDC3, "dcdc3", "vin3", 700, 3500, 25, AXP20X_DCDC3_V_OUT,
|
|
- 0x7f, AXP20X_PWR_OUT_CTRL, 0x02),
|
|
- AXP20X_DESC_FIXED(LDO1, "ldo1", "acin", 1300),
|
|
- AXP20X_DESC(LDO2, "ldo2", "ldo24in", 1800, 3300, 100,
|
|
- AXP20X_LDO24_V_OUT, 0xf0, AXP20X_PWR_OUT_CTRL, 0x04),
|
|
- AXP20X_DESC(LDO3, "ldo3", "ldo3in", 700, 3500, 25, AXP20X_LDO3_V_OUT,
|
|
- 0x7f, AXP20X_PWR_OUT_CTRL, 0x40),
|
|
- AXP20X_DESC_TABLE(LDO4, "ldo4", "ldo24in", axp20x_ldo4_data,
|
|
- AXP20X_LDO24_V_OUT, 0x0f, AXP20X_PWR_OUT_CTRL, 0x08),
|
|
- AXP20X_DESC_IO(LDO5, "ldo5", "ldo5in", 1800, 3300, 100,
|
|
- AXP20X_LDO5_V_OUT, 0xf0, AXP20X_GPIO0_CTRL, 0x07,
|
|
- AXP20X_IO_ENABLED, AXP20X_IO_DISABLED),
|
|
+ AXP_DESC(AXP20X, DCDC2, "dcdc2", "vin2", 700, 2275, 25,
|
|
+ AXP20X_DCDC2_V_OUT, 0x3f, AXP20X_PWR_OUT_CTRL, 0x10),
|
|
+ AXP_DESC(AXP20X, DCDC3, "dcdc3", "vin3", 700, 3500, 25,
|
|
+ AXP20X_DCDC3_V_OUT, 0x7f, AXP20X_PWR_OUT_CTRL, 0x02),
|
|
+ AXP_DESC_FIXED(AXP20X, LDO1, "ldo1", "acin", 1300),
|
|
+ AXP_DESC(AXP20X, LDO2, "ldo2", "ldo24in", 1800, 3300, 100,
|
|
+ AXP20X_LDO24_V_OUT, 0xf0, AXP20X_PWR_OUT_CTRL, 0x04),
|
|
+ AXP_DESC(AXP20X, LDO3, "ldo3", "ldo3in", 700, 3500, 25,
|
|
+ AXP20X_LDO3_V_OUT, 0x7f, AXP20X_PWR_OUT_CTRL, 0x40),
|
|
+ AXP_DESC_TABLE(AXP20X, LDO4, "ldo4", "ldo24in", axp20x_ldo4_data,
|
|
+ AXP20X_LDO24_V_OUT, 0x0f, AXP20X_PWR_OUT_CTRL, 0x08),
|
|
+ AXP_DESC_IO(AXP20X, LDO5, "ldo5", "ldo5in", 1800, 3300, 100,
|
|
+ AXP20X_LDO5_V_OUT, 0xf0, AXP20X_GPIO0_CTRL, 0x07,
|
|
+ AXP20X_IO_ENABLED, AXP20X_IO_DISABLED),
|
|
};
|
|
|
|
static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq)
|
|
{
|
|
struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
|
|
+ u32 min, max, def, step;
|
|
|
|
- if (dcdcfreq < 750) {
|
|
- dcdcfreq = 750;
|
|
- dev_warn(&pdev->dev, "DCDC frequency too low. Set to 750kHz\n");
|
|
+ switch (axp20x->variant) {
|
|
+ case AXP202_ID:
|
|
+ case AXP209_ID:
|
|
+ min = 750;
|
|
+ max = 1875;
|
|
+ def = 1500;
|
|
+ step = 75;
|
|
+ break;
|
|
+ default:
|
|
+ dev_err(&pdev->dev,
|
|
+ "Setting DCDC frequency for unsupported AXP variant\n");
|
|
+ return -EINVAL;
|
|
}
|
|
|
|
- if (dcdcfreq > 1875) {
|
|
- dcdcfreq = 1875;
|
|
- dev_warn(&pdev->dev, "DCDC frequency too high. Set to 1875kHz\n");
|
|
+ if (dcdcfreq == 0)
|
|
+ dcdcfreq = def;
|
|
+
|
|
+ if (dcdcfreq < min) {
|
|
+ dcdcfreq = min;
|
|
+ dev_warn(&pdev->dev, "DCDC frequency too low. Set to %ukHz\n",
|
|
+ min);
|
|
}
|
|
|
|
- dcdcfreq = (dcdcfreq - 750) / 75;
|
|
+ if (dcdcfreq > max) {
|
|
+ dcdcfreq = max;
|
|
+ dev_warn(&pdev->dev, "DCDC frequency too high. Set to %ukHz\n",
|
|
+ max);
|
|
+ }
|
|
+
|
|
+ dcdcfreq = (dcdcfreq - min) / step;
|
|
|
|
return regmap_update_bits(axp20x->regmap, AXP20X_DCDC_FREQ,
|
|
AXP20X_FREQ_DCDC_MASK, dcdcfreq);
|
|
@@ -176,7 +196,7 @@ static int axp20x_regulator_parse_dt(str
|
|
{
|
|
struct device_node *np, *regulators;
|
|
int ret;
|
|
- u32 dcdcfreq;
|
|
+ u32 dcdcfreq = 0;
|
|
|
|
np = of_node_get(pdev->dev.parent->of_node);
|
|
if (!np)
|
|
@@ -186,7 +206,6 @@ static int axp20x_regulator_parse_dt(str
|
|
if (!regulators) {
|
|
dev_warn(&pdev->dev, "regulators node not found\n");
|
|
} else {
|
|
- dcdcfreq = 1500;
|
|
of_property_read_u32(regulators, "x-powers,dcdc-freq", &dcdcfreq);
|
|
ret = axp20x_set_dcdc_freq(pdev, dcdcfreq);
|
|
if (ret < 0) {
|
|
@@ -202,15 +221,27 @@ static int axp20x_regulator_parse_dt(str
|
|
|
|
static int axp20x_set_dcdc_workmode(struct regulator_dev *rdev, int id, u32 workmode)
|
|
{
|
|
- unsigned int mask = AXP20X_WORKMODE_DCDC2_MASK;
|
|
+ struct axp20x_dev *axp20x = rdev_get_drvdata(rdev);
|
|
+ unsigned int mask;
|
|
|
|
- if ((id != AXP20X_DCDC2) && (id != AXP20X_DCDC3))
|
|
+ switch (axp20x->variant) {
|
|
+ case AXP202_ID:
|
|
+ case AXP209_ID:
|
|
+ if ((id != AXP20X_DCDC2) && (id != AXP20X_DCDC3))
|
|
+ return -EINVAL;
|
|
+
|
|
+ mask = AXP20X_WORKMODE_DCDC2_MASK;
|
|
+ if (id == AXP20X_DCDC3)
|
|
+ mask = AXP20X_WORKMODE_DCDC3_MASK;
|
|
+
|
|
+ workmode <<= ffs(mask) - 1;
|
|
+ break;
|
|
+
|
|
+ default:
|
|
+ /* should not happen */
|
|
+ WARN_ON(1);
|
|
return -EINVAL;
|
|
-
|
|
- if (id == AXP20X_DCDC3)
|
|
- mask = AXP20X_WORKMODE_DCDC3_MASK;
|
|
-
|
|
- workmode <<= ffs(mask) - 1;
|
|
+ }
|
|
|
|
return regmap_update_bits(rdev->regmap, AXP20X_DCDC_MODE, mask, workmode);
|
|
}
|
|
@@ -219,22 +250,36 @@ static int axp20x_regulator_probe(struct
|
|
{
|
|
struct regulator_dev *rdev;
|
|
struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
|
|
+ const struct regulator_desc *regulators;
|
|
struct regulator_config config = {
|
|
.dev = pdev->dev.parent,
|
|
.regmap = axp20x->regmap,
|
|
+ .driver_data = axp20x,
|
|
};
|
|
- int ret, i;
|
|
+ int ret, i, nregulators;
|
|
u32 workmode;
|
|
|
|
+ switch (axp20x->variant) {
|
|
+ case AXP202_ID:
|
|
+ case AXP209_ID:
|
|
+ regulators = axp20x_regulators;
|
|
+ nregulators = AXP20X_REG_ID_MAX;
|
|
+ break;
|
|
+ default:
|
|
+ dev_err(&pdev->dev, "Unsupported AXP variant: %ld\n",
|
|
+ axp20x->variant);
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
/* This only sets the dcdc freq. Ignore any errors */
|
|
axp20x_regulator_parse_dt(pdev);
|
|
|
|
- for (i = 0; i < AXP20X_REG_ID_MAX; i++) {
|
|
- rdev = devm_regulator_register(&pdev->dev, &axp20x_regulators[i],
|
|
+ for (i = 0; i < nregulators; i++) {
|
|
+ rdev = devm_regulator_register(&pdev->dev, ®ulators[i],
|
|
&config);
|
|
if (IS_ERR(rdev)) {
|
|
dev_err(&pdev->dev, "Failed to register %s\n",
|
|
- axp20x_regulators[i].name);
|
|
+ regulators[i].name);
|
|
|
|
return PTR_ERR(rdev);
|
|
}
|
|
@@ -245,7 +290,7 @@ static int axp20x_regulator_probe(struct
|
|
if (!ret) {
|
|
if (axp20x_set_dcdc_workmode(rdev, i, workmode))
|
|
dev_err(&pdev->dev, "Failed to set workmode on %s\n",
|
|
- axp20x_regulators[i].name);
|
|
+ rdev->desc->name);
|
|
}
|
|
}
|
|
|