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https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
synced 2026-10-29 03:01:39 -04:00
regulator/mfd: Support ROHM BD71847 power management IC
BD71847 is reduced version of BD71837. DVS bucks 3 and 4 are removed as is LDO7. Voltage ranges of some regulators are expanded. Add initial support for BD71847 with BD71837 driver. Signed-off-by: Matti Vaittinen <[email protected]> Acked-by: Lee Jones <[email protected]> Signed-off-by: Mark Brown <[email protected]>
This commit is contained in:
Matti Vaittinen
Mark Brown
parent
2e0fe4d0c6
commit
494edd266b
3 changed files with 879 additions and 517 deletions
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@ -7,21 +7,16 @@
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// Datasheet available from
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// https://www.rohm.com/datasheet/BD71837MWV/bd71837mwv-e
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#include <linux/gpio_keys.h>
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#include <linux/i2c.h>
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#include <linux/input.h>
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#include <linux/interrupt.h>
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#include <linux/mfd/rohm-bd718x7.h>
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#include <linux/mfd/core.h>
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#include <linux/module.h>
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#include <linux/of_device.h>
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#include <linux/regmap.h>
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/*
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* gpio_keys.h requires definiton of bool. It is brought in
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* by above includes. Keep this as last until gpio_keys.h gets fixed.
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*/
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#include <linux/gpio_keys.h>
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static const u8 supported_revisions[] = { 0xA2 /* BD71837 */ };
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#include <linux/types.h>
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static struct gpio_keys_button button = {
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.code = KEY_POWER,
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@ -41,8 +36,8 @@ static struct mfd_cell bd71837_mfd_cells[] = {
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.platform_data = &bd718xx_powerkey_data,
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.pdata_size = sizeof(bd718xx_powerkey_data),
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},
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{ .name = "bd71837-clk", },
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{ .name = "bd71837-pmic", },
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{ .name = "bd718xx-clk", },
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{ .name = "bd718xx-pmic", },
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};
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static const struct regmap_irq bd71837_irqs[] = {
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@ -61,16 +56,16 @@ static struct regmap_irq_chip bd71837_irq_chip = {
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.num_irqs = ARRAY_SIZE(bd71837_irqs),
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.num_regs = 1,
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.irq_reg_stride = 1,
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.status_base = BD71837_REG_IRQ,
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.mask_base = BD71837_REG_MIRQ,
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.ack_base = BD71837_REG_IRQ,
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.status_base = BD718XX_REG_IRQ,
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.mask_base = BD718XX_REG_MIRQ,
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.ack_base = BD718XX_REG_IRQ,
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.init_ack_masked = true,
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.mask_invert = false,
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};
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static const struct regmap_range pmic_status_range = {
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.range_min = BD71837_REG_IRQ,
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.range_max = BD71837_REG_POW_STATE,
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.range_min = BD718XX_REG_IRQ,
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.range_max = BD718XX_REG_POW_STATE,
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};
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static const struct regmap_access_table volatile_regs = {
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@ -82,7 +77,7 @@ static const struct regmap_config bd71837_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.volatile_table = &volatile_regs,
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.max_register = BD71837_MAX_REGISTER - 1,
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.max_register = BD718XX_MAX_REGISTER - 1,
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.cache_type = REGCACHE_RBTREE,
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};
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@ -90,8 +85,12 @@ static int bd71837_i2c_probe(struct i2c_client *i2c,
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const struct i2c_device_id *id)
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{
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struct bd71837 *bd71837;
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int ret, i;
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unsigned int val;
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int ret;
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if (!i2c->irq) {
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dev_err(&i2c->dev, "No IRQ configured\n");
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return -EINVAL;
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}
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bd71837 = devm_kzalloc(&i2c->dev, sizeof(struct bd71837), GFP_KERNEL);
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@ -99,12 +98,8 @@ static int bd71837_i2c_probe(struct i2c_client *i2c,
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return -ENOMEM;
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bd71837->chip_irq = i2c->irq;
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if (!bd71837->chip_irq) {
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dev_err(&i2c->dev, "No IRQ configured\n");
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return -EINVAL;
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}
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bd71837->chip_type = (unsigned int)(uintptr_t)
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of_device_get_match_data(&i2c->dev);
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bd71837->dev = &i2c->dev;
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dev_set_drvdata(&i2c->dev, bd71837);
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@ -114,20 +109,6 @@ static int bd71837_i2c_probe(struct i2c_client *i2c,
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return PTR_ERR(bd71837->regmap);
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}
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ret = regmap_read(bd71837->regmap, BD71837_REG_REV, &val);
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if (ret) {
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dev_err(&i2c->dev, "Read BD71837_REG_DEVICE failed\n");
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return ret;
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}
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for (i = 0; i < ARRAY_SIZE(supported_revisions); i++)
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if (supported_revisions[i] == val)
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break;
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if (i == ARRAY_SIZE(supported_revisions)) {
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dev_err(&i2c->dev, "Unsupported chip revision\n");
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return -ENODEV;
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}
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ret = devm_regmap_add_irq_chip(&i2c->dev, bd71837->regmap,
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bd71837->chip_irq, IRQF_ONESHOT, 0,
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&bd71837_irq_chip, &bd71837->irq_data);
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@ -138,7 +119,7 @@ static int bd71837_i2c_probe(struct i2c_client *i2c,
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/* Configure short press to 10 milliseconds */
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ret = regmap_update_bits(bd71837->regmap,
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BD71837_REG_PWRONCONFIG0,
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BD718XX_REG_PWRONCONFIG0,
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BD718XX_PWRBTN_PRESS_DURATION_MASK,
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BD718XX_PWRBTN_SHORT_PRESS_10MS);
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if (ret) {
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@ -149,7 +130,7 @@ static int bd71837_i2c_probe(struct i2c_client *i2c,
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/* Configure long press to 10 seconds */
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ret = regmap_update_bits(bd71837->regmap,
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BD71837_REG_PWRONCONFIG1,
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BD718XX_REG_PWRONCONFIG1,
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BD718XX_PWRBTN_PRESS_DURATION_MASK,
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BD718XX_PWRBTN_LONG_PRESS_10S);
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@ -179,7 +160,14 @@ static int bd71837_i2c_probe(struct i2c_client *i2c,
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}
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static const struct of_device_id bd71837_of_match[] = {
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{ .compatible = "rohm,bd71837", },
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{
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.compatible = "rohm,bd71837",
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.data = (void *)BD718XX_TYPE_BD71837,
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},
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{
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.compatible = "rohm,bd71847",
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.data = (void *)BD718XX_TYPE_BD71847,
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},
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{ }
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};
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MODULE_DEVICE_TABLE(of, bd71837_of_match);
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