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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.c166
1 files changed, 98 insertions, 68 deletions
diff --git a/drivers/mfd/rohm-bd718x7.c b/drivers/mfd/rohm-bd718x7.c
index a29d529a96f4..ff714fd4f54d 100644
--- a/drivers/mfd/rohm-bd718x7.c
+++ b/drivers/mfd/rohm-bd718x7.c
@@ -14,7 +14,7 @@
#include <linux/mfd/rohm-bd718x7.h>
#include <linux/mfd/core.h>
#include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/types.h>
@@ -30,14 +30,24 @@ static struct gpio_keys_platform_data bd718xx_powerkey_data = {
.name = "bd718xx-pwrkey",
};
-static struct mfd_cell bd718xx_mfd_cells[] = {
+static struct mfd_cell bd71837_mfd_cells[] = {
{
.name = "gpio-keys",
.platform_data = &bd718xx_powerkey_data,
.pdata_size = sizeof(bd718xx_powerkey_data),
},
- { .name = "bd718xx-clk", },
- { .name = "bd718xx-pmic", },
+ { .name = "bd71837-clk", },
+ { .name = "bd71837-pmic", },
+};
+
+static struct mfd_cell bd71847_mfd_cells[] = {
+ {
+ .name = "gpio-keys",
+ .platform_data = &bd718xx_powerkey_data,
+ .pdata_size = sizeof(bd718xx_powerkey_data),
+ },
+ { .name = "bd71847-clk", },
+ { .name = "bd71847-pmic", },
};
static const struct regmap_irq bd718xx_irqs[] = {
@@ -50,7 +60,7 @@ static const struct regmap_irq bd718xx_irqs[] = {
REGMAP_IRQ_REG(BD718XX_INT_STBY_REQ, 0, BD718XX_INT_STBY_REQ_MASK),
};
-static struct regmap_irq_chip bd718xx_irq_chip = {
+static const struct regmap_irq_chip bd718xx_irq_chip = {
.name = "bd718xx-irq",
.irqs = bd718xx_irqs,
.num_irqs = ARRAY_SIZE(bd718xx_irqs),
@@ -60,17 +70,15 @@ static struct regmap_irq_chip bd718xx_irq_chip = {
.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 = BD718XX_REG_IRQ,
- .range_max = BD718XX_REG_POW_STATE,
+static const struct regmap_range pmic_status_range[] = {
+ regmap_reg_range(BD718XX_REG_IRQ, BD718XX_REG_POW_STATE),
};
static const struct regmap_access_table volatile_regs = {
- .yes_ranges = &pmic_status_range,
- .n_yes_ranges = 1,
+ .yes_ranges = &pmic_status_range[0],
+ .n_yes_ranges = ARRAY_SIZE(pmic_status_range),
};
static const struct regmap_config bd718xx_regmap_config = {
@@ -78,83 +86,101 @@ static const struct regmap_config bd718xx_regmap_config = {
.val_bits = 8,
.volatile_table = &volatile_regs,
.max_register = BD718XX_MAX_REGISTER - 1,
- .cache_type = REGCACHE_RBTREE,
+ .cache_type = REGCACHE_MAPLE,
};
-static int bd718xx_i2c_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
+static int bd718xx_init_press_duration(struct regmap *regmap,
+ struct device *dev)
{
- struct bd718xx *bd718xx;
+ u32 short_press_ms, long_press_ms;
+ u32 short_press_value, long_press_value;
int ret;
- if (!i2c->irq) {
- dev_err(&i2c->dev, "No IRQ configured\n");
- return -EINVAL;
+ ret = of_property_read_u32(dev->of_node, "rohm,short-press-ms",
+ &short_press_ms);
+ if (!ret) {
+ short_press_value = min(15u, (short_press_ms + 250) / 500);
+ ret = regmap_update_bits(regmap, BD718XX_REG_PWRONCONFIG0,
+ BD718XX_PWRBTN_PRESS_DURATION_MASK,
+ short_press_value);
+ if (ret) {
+ dev_err(dev, "Failed to init pwron short press\n");
+ return ret;
+ }
}
- bd718xx = devm_kzalloc(&i2c->dev, sizeof(struct bd718xx), GFP_KERNEL);
+ ret = of_property_read_u32(dev->of_node, "rohm,long-press-ms",
+ &long_press_ms);
+ if (!ret) {
+ long_press_value = min(15u, (long_press_ms + 500) / 1000);
+ ret = regmap_update_bits(regmap, BD718XX_REG_PWRONCONFIG1,
+ BD718XX_PWRBTN_PRESS_DURATION_MASK,
+ long_press_value);
+ if (ret) {
+ dev_err(dev, "Failed to init pwron long press\n");
+ return ret;
+ }
+ }
- if (!bd718xx)
- return -ENOMEM;
+ return 0;
+}
- 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);
+static int bd718xx_i2c_probe(struct i2c_client *i2c)
+{
+ struct regmap *regmap;
+ struct regmap_irq_chip_data *irq_data;
+ int ret;
+ unsigned int chip_type;
+ struct mfd_cell *mfd;
+ int cells;
- 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);
+ if (!i2c->irq) {
+ dev_err(&i2c->dev, "No IRQ configured\n");
+ return -EINVAL;
}
-
- 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;
+ chip_type = (unsigned int)(uintptr_t)
+ of_device_get_match_data(&i2c->dev);
+ switch (chip_type) {
+ case ROHM_CHIP_TYPE_BD71837:
+ mfd = bd71837_mfd_cells;
+ cells = ARRAY_SIZE(bd71837_mfd_cells);
+ break;
+ case ROHM_CHIP_TYPE_BD71847:
+ mfd = bd71847_mfd_cells;
+ cells = ARRAY_SIZE(bd71847_mfd_cells);
+ break;
+ default:
+ dev_err(&i2c->dev, "Unknown device type");
+ return -EINVAL;
}
- /* Configure short press to 10 milliseconds */
- ret = regmap_update_bits(bd718xx->regmap,
- BD718XX_REG_PWRONCONFIG0,
- BD718XX_PWRBTN_PRESS_DURATION_MASK,
- BD718XX_PWRBTN_SHORT_PRESS_10MS);
- if (ret) {
- dev_err(&i2c->dev,
- "Failed to configure button short press timeout\n");
- return ret;
- }
+ regmap = devm_regmap_init_i2c(i2c, &bd718xx_regmap_config);
+ if (IS_ERR(regmap))
+ return dev_err_probe(&i2c->dev, PTR_ERR(regmap),
+ "regmap initialization failed\n");
- /* Configure long press to 10 seconds */
- ret = regmap_update_bits(bd718xx->regmap,
- BD718XX_REG_PWRONCONFIG1,
- BD718XX_PWRBTN_PRESS_DURATION_MASK,
- BD718XX_PWRBTN_LONG_PRESS_10S);
+ ret = devm_regmap_add_irq_chip(&i2c->dev, regmap, i2c->irq,
+ IRQF_ONESHOT, 0, &bd718xx_irq_chip,
+ &irq_data);
+ if (ret)
+ return dev_err_probe(&i2c->dev, ret, "Failed to add irq_chip\n");
- if (ret) {
- dev_err(&i2c->dev,
- "Failed to configure button long press timeout\n");
+ ret = bd718xx_init_press_duration(regmap, &i2c->dev);
+ if (ret)
return ret;
- }
- ret = regmap_irq_get_virq(bd718xx->irq_data, BD718XX_INT_PWRBTN_S);
+ ret = regmap_irq_get_virq(irq_data, BD718XX_INT_PWRBTN_S);
- if (ret < 0) {
- dev_err(&i2c->dev, "Failed to get the IRQ\n");
- return ret;
- }
+ if (ret < 0)
+ return dev_err_probe(&i2c->dev, ret, "Failed to get the IRQ\n");
button.irq = ret;
- 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));
+ ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO,
+ mfd, cells, NULL, 0,
+ regmap_irq_get_domain(irq_data));
if (ret)
- dev_err(&i2c->dev, "Failed to create subdevices\n");
+ dev_err_probe(&i2c->dev, ret, "Failed to create subdevices\n");
return ret;
}
@@ -162,11 +188,15 @@ static int bd718xx_i2c_probe(struct i2c_client *i2c,
static const struct of_device_id bd718xx_of_match[] = {
{
.compatible = "rohm,bd71837",
- .data = (void *)BD718XX_TYPE_BD71837,
+ .data = (void *)ROHM_CHIP_TYPE_BD71837,
},
{
.compatible = "rohm,bd71847",
- .data = (void *)BD718XX_TYPE_BD71847,
+ .data = (void *)ROHM_CHIP_TYPE_BD71847,
+ },
+ {
+ .compatible = "rohm,bd71850",
+ .data = (void *)ROHM_CHIP_TYPE_BD71847,
},
{ }
};
generated by cgit (git 2.34.1) at 2025-12-26 03:13:05 +0000