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path: root/drivers/mfd/rohm-bd718x7.c
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Diffstat (limited to 'drivers/mfd/rohm-bd718x7.c')
-rw-r--r--drivers/mfd/rohm-bd718x7.c162
1 files changed, 75 insertions, 87 deletions
diff --git a/drivers/mfd/rohm-bd718x7.c b/drivers/mfd/rohm-bd718x7.c
index 75c8ec659547..a29d529a96f4 100644
--- a/drivers/mfd/rohm-bd718x7.c
+++ b/drivers/mfd/rohm-bd718x7.c
@@ -2,26 +2,21 @@
//
// Copyright (C) 2018 ROHM Semiconductors
//
-// ROHM BD71837MWV PMIC driver
+// ROHM BD71837MWV and BD71847MWV PMIC driver
//
-// Datasheet available from
+// Datasheet for BD71837MWV available from
// https://www.rohm.com/datasheet/BD71837MWV/bd71837mwv-e
+#include <linux/gpio_keys.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mfd/rohm-bd718x7.h>
#include <linux/mfd/core.h>
#include <linux/module.h>
+#include <linux/of_device.h>
#include <linux/regmap.h>
-
-/*
- * gpio_keys.h requires definiton of bool. It is brought in
- * by above includes. Keep this as last until gpio_keys.h gets fixed.
- */
-#include <linux/gpio_keys.h>
-
-static const u8 supported_revisions[] = { 0xA2 /* BD71837 */ };
+#include <linux/types.h>
static struct gpio_keys_button button = {
.code = KEY_POWER,
@@ -35,42 +30,42 @@ static struct gpio_keys_platform_data bd718xx_powerkey_data = {
.name = "bd718xx-pwrkey",
};
-static struct mfd_cell bd71837_mfd_cells[] = {
+static struct mfd_cell bd718xx_mfd_cells[] = {
{
.name = "gpio-keys",
.platform_data = &bd718xx_powerkey_data,
.pdata_size = sizeof(bd718xx_powerkey_data),
},
- { .name = "bd71837-clk", },
- { .name = "bd71837-pmic", },
+ { .name = "bd718xx-clk", },
+ { .name = "bd718xx-pmic", },
};
-static const struct regmap_irq bd71837_irqs[] = {
- REGMAP_IRQ_REG(BD71837_INT_SWRST, 0, BD71837_INT_SWRST_MASK),
- REGMAP_IRQ_REG(BD71837_INT_PWRBTN_S, 0, BD71837_INT_PWRBTN_S_MASK),
- REGMAP_IRQ_REG(BD71837_INT_PWRBTN_L, 0, BD71837_INT_PWRBTN_L_MASK),
- REGMAP_IRQ_REG(BD71837_INT_PWRBTN, 0, BD71837_INT_PWRBTN_MASK),
- REGMAP_IRQ_REG(BD71837_INT_WDOG, 0, BD71837_INT_WDOG_MASK),
- REGMAP_IRQ_REG(BD71837_INT_ON_REQ, 0, BD71837_INT_ON_REQ_MASK),
- REGMAP_IRQ_REG(BD71837_INT_STBY_REQ, 0, BD71837_INT_STBY_REQ_MASK),
+static const struct regmap_irq bd718xx_irqs[] = {
+ REGMAP_IRQ_REG(BD718XX_INT_SWRST, 0, BD718XX_INT_SWRST_MASK),
+ REGMAP_IRQ_REG(BD718XX_INT_PWRBTN_S, 0, BD718XX_INT_PWRBTN_S_MASK),
+ REGMAP_IRQ_REG(BD718XX_INT_PWRBTN_L, 0, BD718XX_INT_PWRBTN_L_MASK),
+ REGMAP_IRQ_REG(BD718XX_INT_PWRBTN, 0, BD718XX_INT_PWRBTN_MASK),
+ REGMAP_IRQ_REG(BD718XX_INT_WDOG, 0, BD718XX_INT_WDOG_MASK),
+ REGMAP_IRQ_REG(BD718XX_INT_ON_REQ, 0, BD718XX_INT_ON_REQ_MASK),
+ REGMAP_IRQ_REG(BD718XX_INT_STBY_REQ, 0, BD718XX_INT_STBY_REQ_MASK),
};
-static struct regmap_irq_chip bd71837_irq_chip = {
- .name = "bd71837-irq",
- .irqs = bd71837_irqs,
- .num_irqs = ARRAY_SIZE(bd71837_irqs),
+static struct regmap_irq_chip bd718xx_irq_chip = {
+ .name = "bd718xx-irq",
+ .irqs = bd718xx_irqs,
+ .num_irqs = ARRAY_SIZE(bd718xx_irqs),
.num_regs = 1,
.irq_reg_stride = 1,
- .status_base = BD71837_REG_IRQ,
- .mask_base = BD71837_REG_MIRQ,
- .ack_base = BD71837_REG_IRQ,
+ .status_base = BD718XX_REG_IRQ,
+ .mask_base = BD718XX_REG_MIRQ,
+ .ack_base = BD718XX_REG_IRQ,
.init_ack_masked = true,
.mask_invert = false,
};
static const struct regmap_range pmic_status_range = {
- .range_min = BD71837_REG_IRQ,
- .range_max = BD71837_REG_POW_STATE,
+ .range_min = BD718XX_REG_IRQ,
+ .range_max = BD718XX_REG_POW_STATE,
};
static const struct regmap_access_table volatile_regs = {
@@ -78,67 +73,53 @@ static const struct regmap_access_table volatile_regs = {
.n_yes_ranges = 1,
};
-static const struct regmap_config bd71837_regmap_config = {
+static const struct regmap_config bd718xx_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.volatile_table = &volatile_regs,
- .max_register = BD71837_MAX_REGISTER - 1,
+ .max_register = BD718XX_MAX_REGISTER - 1,
.cache_type = REGCACHE_RBTREE,
};
-static int bd71837_i2c_probe(struct i2c_client *i2c,
+static int bd718xx_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
- struct bd71837 *bd71837;
- int ret, i;
- unsigned int val;
-
- bd71837 = devm_kzalloc(&i2c->dev, sizeof(struct bd71837), GFP_KERNEL);
+ struct bd718xx *bd718xx;
+ int ret;
- if (!bd71837)
- return -ENOMEM;
-
- bd71837->chip_irq = i2c->irq;
-
- if (!bd71837->chip_irq) {
+ if (!i2c->irq) {
dev_err(&i2c->dev, "No IRQ configured\n");
return -EINVAL;
}
- bd71837->dev = &i2c->dev;
- dev_set_drvdata(&i2c->dev, bd71837);
+ bd718xx = devm_kzalloc(&i2c->dev, sizeof(struct bd718xx), GFP_KERNEL);
- bd71837->regmap = devm_regmap_init_i2c(i2c, &bd71837_regmap_config);
- if (IS_ERR(bd71837->regmap)) {
- dev_err(&i2c->dev, "regmap initialization failed\n");
- return PTR_ERR(bd71837->regmap);
- }
+ if (!bd718xx)
+ return -ENOMEM;
- ret = regmap_read(bd71837->regmap, BD71837_REG_REV, &val);
- if (ret) {
- dev_err(&i2c->dev, "Read BD71837_REG_DEVICE failed\n");
- return ret;
- }
- for (i = 0; i < ARRAY_SIZE(supported_revisions); i++)
- if (supported_revisions[i] == val)
- break;
+ bd718xx->chip_irq = i2c->irq;
+ bd718xx->chip_type = (unsigned int)(uintptr_t)
+ of_device_get_match_data(&i2c->dev);
+ bd718xx->dev = &i2c->dev;
+ dev_set_drvdata(&i2c->dev, bd718xx);
- if (i == ARRAY_SIZE(supported_revisions)) {
- dev_err(&i2c->dev, "Unsupported chip revision\n");
- return -ENODEV;
+ bd718xx->regmap = devm_regmap_init_i2c(i2c, &bd718xx_regmap_config);
+ if (IS_ERR(bd718xx->regmap)) {
+ dev_err(&i2c->dev, "regmap initialization failed\n");
+ return PTR_ERR(bd718xx->regmap);
}
- ret = devm_regmap_add_irq_chip(&i2c->dev, bd71837->regmap,
- bd71837->chip_irq, IRQF_ONESHOT, 0,
- &bd71837_irq_chip, &bd71837->irq_data);
+ ret = devm_regmap_add_irq_chip(&i2c->dev, bd718xx->regmap,
+ bd718xx->chip_irq, IRQF_ONESHOT, 0,
+ &bd718xx_irq_chip, &bd718xx->irq_data);
if (ret) {
dev_err(&i2c->dev, "Failed to add irq_chip\n");
return ret;
}
/* Configure short press to 10 milliseconds */
- ret = regmap_update_bits(bd71837->regmap,
- BD71837_REG_PWRONCONFIG0,
+ ret = regmap_update_bits(bd718xx->regmap,
+ BD718XX_REG_PWRONCONFIG0,
BD718XX_PWRBTN_PRESS_DURATION_MASK,
BD718XX_PWRBTN_SHORT_PRESS_10MS);
if (ret) {
@@ -148,8 +129,8 @@ static int bd71837_i2c_probe(struct i2c_client *i2c,
}
/* Configure long press to 10 seconds */
- ret = regmap_update_bits(bd71837->regmap,
- BD71837_REG_PWRONCONFIG1,
+ ret = regmap_update_bits(bd718xx->regmap,
+ BD718XX_REG_PWRONCONFIG1,
BD718XX_PWRBTN_PRESS_DURATION_MASK,
BD718XX_PWRBTN_LONG_PRESS_10S);
@@ -159,7 +140,7 @@ static int bd71837_i2c_probe(struct i2c_client *i2c,
return ret;
}
- ret = regmap_irq_get_virq(bd71837->irq_data, BD71837_INT_PWRBTN_S);
+ ret = regmap_irq_get_virq(bd718xx->irq_data, BD718XX_INT_PWRBTN_S);
if (ret < 0) {
dev_err(&i2c->dev, "Failed to get the IRQ\n");
@@ -168,44 +149,51 @@ static int bd71837_i2c_probe(struct i2c_client *i2c,
button.irq = ret;
- ret = devm_mfd_add_devices(bd71837->dev, PLATFORM_DEVID_AUTO,
- bd71837_mfd_cells,
- ARRAY_SIZE(bd71837_mfd_cells), NULL, 0,
- regmap_irq_get_domain(bd71837->irq_data));
+ ret = devm_mfd_add_devices(bd718xx->dev, PLATFORM_DEVID_AUTO,
+ bd718xx_mfd_cells,
+ ARRAY_SIZE(bd718xx_mfd_cells), NULL, 0,
+ regmap_irq_get_domain(bd718xx->irq_data));
if (ret)
dev_err(&i2c->dev, "Failed to create subdevices\n");
return ret;
}
-static const struct of_device_id bd71837_of_match[] = {
- { .compatible = "rohm,bd71837", },
+static const struct of_device_id bd718xx_of_match[] = {
+ {
+ .compatible = "rohm,bd71837",
+ .data = (void *)BD718XX_TYPE_BD71837,
+ },
+ {
+ .compatible = "rohm,bd71847",
+ .data = (void *)BD718XX_TYPE_BD71847,
+ },
{ }
};
-MODULE_DEVICE_TABLE(of, bd71837_of_match);
+MODULE_DEVICE_TABLE(of, bd718xx_of_match);
-static struct i2c_driver bd71837_i2c_driver = {
+static struct i2c_driver bd718xx_i2c_driver = {
.driver = {
.name = "rohm-bd718x7",
- .of_match_table = bd71837_of_match,
+ .of_match_table = bd718xx_of_match,
},
- .probe = bd71837_i2c_probe,
+ .probe = bd718xx_i2c_probe,
};
-static int __init bd71837_i2c_init(void)
+static int __init bd718xx_i2c_init(void)
{
- return i2c_add_driver(&bd71837_i2c_driver);
+ return i2c_add_driver(&bd718xx_i2c_driver);
}
/* Initialise early so consumer devices can complete system boot */
-subsys_initcall(bd71837_i2c_init);
+subsys_initcall(bd718xx_i2c_init);
-static void __exit bd71837_i2c_exit(void)
+static void __exit bd718xx_i2c_exit(void)
{
- i2c_del_driver(&bd71837_i2c_driver);
+ i2c_del_driver(&bd718xx_i2c_driver);
}
-module_exit(bd71837_i2c_exit);
+module_exit(bd718xx_i2c_exit);
MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
-MODULE_DESCRIPTION("ROHM BD71837 Power Management IC driver");
+MODULE_DESCRIPTION("ROHM BD71837/BD71847 Power Management IC driver");
MODULE_LICENSE("GPL");
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