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path: root/drivers/regulator/ab8500-ext.c
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Diffstat (limited to 'drivers/regulator/ab8500-ext.c')
-rw-r--r--drivers/regulator/ab8500-ext.c155
1 files changed, 73 insertions, 82 deletions
diff --git a/drivers/regulator/ab8500-ext.c b/drivers/regulator/ab8500-ext.c
index 02ff691cdb8b..b9955aa4e0d1 100644
--- a/drivers/regulator/ab8500-ext.c
+++ b/drivers/regulator/ab8500-ext.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) ST-Ericsson SA 2010
*
- * License Terms: GNU General Public License v2
- *
* Authors: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
*
* This file is based on drivers/regulator/ab8500.c
@@ -23,13 +22,67 @@
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/abx500.h>
#include <linux/mfd/abx500/ab8500.h>
-#include <linux/regulator/ab8500.h>
+
+/* AB8500 external regulators */
+enum ab8500_ext_regulator_id {
+ AB8500_EXT_SUPPLY1,
+ AB8500_EXT_SUPPLY2,
+ AB8500_EXT_SUPPLY3,
+ AB8500_NUM_EXT_REGULATORS,
+};
+
+struct ab8500_ext_regulator_cfg {
+ bool hwreq; /* requires hw mode or high power mode */
+};
+
+/* supply for VextSupply3 */
+static struct regulator_consumer_supply ab8500_ext_supply3_consumers[] = {
+ /* SIM supply for 3 V SIM cards */
+ REGULATOR_SUPPLY("vinvsim", "sim-detect.0"),
+};
+
+/*
+ * AB8500 external regulators
+ */
+static struct regulator_init_data ab8500_ext_regulators[] = {
+ /* fixed Vbat supplies VSMPS1_EXT_1V8 */
+ [AB8500_EXT_SUPPLY1] = {
+ .constraints = {
+ .name = "ab8500-ext-supply1",
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .initial_mode = REGULATOR_MODE_IDLE,
+ .boot_on = 1,
+ .always_on = 1,
+ },
+ },
+ /* fixed Vbat supplies VSMPS2_EXT_1V36 and VSMPS5_EXT_1V15 */
+ [AB8500_EXT_SUPPLY2] = {
+ .constraints = {
+ .name = "ab8500-ext-supply2",
+ .min_uV = 1360000,
+ .max_uV = 1360000,
+ },
+ },
+ /* fixed Vbat supplies VSMPS3_EXT_3V4 and VSMPS4_EXT_3V4 */
+ [AB8500_EXT_SUPPLY3] = {
+ .constraints = {
+ .name = "ab8500-ext-supply3",
+ .min_uV = 3400000,
+ .max_uV = 3400000,
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ .boot_on = 1,
+ },
+ .num_consumer_supplies =
+ ARRAY_SIZE(ab8500_ext_supply3_consumers),
+ .consumer_supplies = ab8500_ext_supply3_consumers,
+ },
+};
/**
* struct ab8500_ext_regulator_info - ab8500 regulator information
* @dev: device pointer
* @desc: regulator description
- * @rdev: regulator device
* @cfg: regulator configuration (extension of regulator FW configuration)
* @update_bank: bank to control on/off
* @update_reg: register to control on/off
@@ -45,7 +98,6 @@
struct ab8500_ext_regulator_info {
struct device *dev;
struct regulator_desc desc;
- struct regulator_dev *rdev;
struct ab8500_ext_regulator_cfg *cfg;
u8 update_bank;
u8 update_reg;
@@ -80,7 +132,7 @@ static int ab8500_ext_regulator_enable(struct regulator_dev *rdev)
info->update_bank, info->update_reg,
info->update_mask, regval);
if (ret < 0) {
- dev_err(rdev_get_dev(info->rdev),
+ dev_err(rdev_get_dev(rdev),
"couldn't set enable bits for regulator\n");
return ret;
}
@@ -116,7 +168,7 @@ static int ab8500_ext_regulator_disable(struct regulator_dev *rdev)
info->update_bank, info->update_reg,
info->update_mask, regval);
if (ret < 0) {
- dev_err(rdev_get_dev(info->rdev),
+ dev_err(rdev_get_dev(rdev),
"couldn't set disable bits for regulator\n");
return ret;
}
@@ -270,7 +322,7 @@ static int ab8500_ext_list_voltage(struct regulator_dev *rdev,
return -EINVAL;
}
-static struct regulator_ops ab8500_ext_regulator_ops = {
+static const struct regulator_ops ab8500_ext_regulator_ops = {
.enable = ab8500_ext_regulator_enable,
.disable = ab8500_ext_regulator_disable,
.is_enabled = ab8500_ext_regulator_is_enabled,
@@ -285,6 +337,7 @@ static struct ab8500_ext_regulator_info
[AB8500_EXT_SUPPLY1] = {
.desc = {
.name = "VEXTSUPPLY1",
+ .of_match = of_match_ptr("ab8500_ext1"),
.ops = &ab8500_ext_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = AB8500_EXT_SUPPLY1,
@@ -302,6 +355,7 @@ static struct ab8500_ext_regulator_info
[AB8500_EXT_SUPPLY2] = {
.desc = {
.name = "VEXTSUPPLY2",
+ .of_match = of_match_ptr("ab8500_ext2"),
.ops = &ab8500_ext_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = AB8500_EXT_SUPPLY2,
@@ -319,6 +373,7 @@ static struct ab8500_ext_regulator_info
[AB8500_EXT_SUPPLY3] = {
.desc = {
.name = "VEXTSUPPLY3",
+ .of_match = of_match_ptr("ab8500_ext3"),
.ops = &ab8500_ext_regulator_ops,
.type = REGULATOR_VOLTAGE,
.id = AB8500_EXT_SUPPLY3,
@@ -335,55 +390,18 @@ static struct ab8500_ext_regulator_info
},
};
-static struct of_regulator_match ab8500_ext_regulator_match[] = {
- { .name = "ab8500_ext1", .driver_data = (void *) AB8500_EXT_SUPPLY1, },
- { .name = "ab8500_ext2", .driver_data = (void *) AB8500_EXT_SUPPLY2, },
- { .name = "ab8500_ext3", .driver_data = (void *) AB8500_EXT_SUPPLY3, },
-};
-
static int ab8500_ext_regulator_probe(struct platform_device *pdev)
{
struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
- struct ab8500_platform_data *ppdata;
- struct ab8500_regulator_platform_data *pdata;
- struct device_node *np = pdev->dev.of_node;
struct regulator_config config = { };
- int i, err;
-
- if (np) {
- err = of_regulator_match(&pdev->dev, np,
- ab8500_ext_regulator_match,
- ARRAY_SIZE(ab8500_ext_regulator_match));
- if (err < 0) {
- dev_err(&pdev->dev,
- "Error parsing regulator init data: %d\n", err);
- return err;
- }
- }
+ struct regulator_dev *rdev;
+ int i;
if (!ab8500) {
dev_err(&pdev->dev, "null mfd parent\n");
return -EINVAL;
}
- ppdata = dev_get_platdata(ab8500->dev);
- if (!ppdata) {
- dev_err(&pdev->dev, "null parent pdata\n");
- return -EINVAL;
- }
-
- pdata = ppdata->regulator;
- if (!pdata) {
- dev_err(&pdev->dev, "null pdata\n");
- return -EINVAL;
- }
-
- /* make sure the platform data has the correct size */
- if (pdata->num_ext_regulator != ARRAY_SIZE(ab8500_ext_regulator_info)) {
- dev_err(&pdev->dev, "Configuration error: size mismatch.\n");
- return -EINVAL;
- }
-
/* check for AB8500 2.x */
if (is_ab8500_2p0_or_earlier(ab8500)) {
struct ab8500_ext_regulator_info *info;
@@ -403,48 +421,22 @@ static int ab8500_ext_regulator_probe(struct platform_device *pdev)
info = &ab8500_ext_regulator_info[i];
info->dev = &pdev->dev;
info->cfg = (struct ab8500_ext_regulator_cfg *)
- pdata->ext_regulator[i].driver_data;
+ ab8500_ext_regulators[i].driver_data;
config.dev = &pdev->dev;
config.driver_data = info;
- config.of_node = ab8500_ext_regulator_match[i].of_node;
- config.init_data = (np) ?
- ab8500_ext_regulator_match[i].init_data :
- &pdata->ext_regulator[i];
+ config.init_data = &ab8500_ext_regulators[i];
/* register regulator with framework */
- info->rdev = regulator_register(&info->desc, &config);
- if (IS_ERR(info->rdev)) {
- err = PTR_ERR(info->rdev);
+ rdev = devm_regulator_register(&pdev->dev, &info->desc,
+ &config);
+ if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register regulator %s\n",
info->desc.name);
- /* when we fail, un-register all earlier regulators */
- while (--i >= 0) {
- info = &ab8500_ext_regulator_info[i];
- regulator_unregister(info->rdev);
- }
- return err;
+ return PTR_ERR(rdev);
}
- dev_dbg(rdev_get_dev(info->rdev),
- "%s-probed\n", info->desc.name);
- }
-
- return 0;
-}
-
-static int ab8500_ext_regulator_remove(struct platform_device *pdev)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(ab8500_ext_regulator_info); i++) {
- struct ab8500_ext_regulator_info *info = NULL;
- info = &ab8500_ext_regulator_info[i];
-
- dev_vdbg(rdev_get_dev(info->rdev),
- "%s-remove\n", info->desc.name);
-
- regulator_unregister(info->rdev);
+ dev_dbg(&pdev->dev, "%s-probed\n", info->desc.name);
}
return 0;
@@ -452,10 +444,9 @@ static int ab8500_ext_regulator_remove(struct platform_device *pdev)
static struct platform_driver ab8500_ext_regulator_driver = {
.probe = ab8500_ext_regulator_probe,
- .remove = ab8500_ext_regulator_remove,
.driver = {
.name = "ab8500-ext-regulator",
- .owner = THIS_MODULE,
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
generated by cgit (git 2.34.1) at 2025-12-25 08:34:17 +0000