[PATCH v7 04/10] mfd: tps6594-i2c: Add TI TPS65224 PMIC I2C

From: Bhargav Raviprakash
Date: Wed Apr 17 2024 - 07:51:08 EST


Add support for TPS65224 PMIC in TPS6594's I2C driver which has
significant functional overlap.

Signed-off-by: Bhargav Raviprakash <bhargav.r@xxxxxxxx>
Acked-by: Julien Panis <jpanis@xxxxxxxxxxxx>
---
drivers/mfd/tps6594-i2c.c | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/mfd/tps6594-i2c.c b/drivers/mfd/tps6594-i2c.c
index c125b474b..4ab91c34d 100644
--- a/drivers/mfd/tps6594-i2c.c
+++ b/drivers/mfd/tps6594-i2c.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * I2C access driver for TI TPS6594/TPS6593/LP8764 PMICs
+ * I2C access driver for TI TPS65224/TPS6594/TPS6593/LP8764 PMICs
*
* Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/
*/
@@ -183,7 +183,7 @@ static int tps6594_i2c_write(void *context, const void *data, size_t count)
return ret;
}

-static const struct regmap_config tps6594_i2c_regmap_config = {
+static struct regmap_config tps6594_i2c_regmap_config = {
.reg_bits = 16,
.val_bits = 8,
.max_register = TPS6594_REG_DWD_FAIL_CNT_REG,
@@ -196,6 +196,7 @@ static const struct of_device_id tps6594_i2c_of_match_table[] = {
{ .compatible = "ti,tps6594-q1", .data = (void *)TPS6594, },
{ .compatible = "ti,tps6593-q1", .data = (void *)TPS6593, },
{ .compatible = "ti,lp8764-q1", .data = (void *)LP8764, },
+ { .compatible = "ti,tps65224-q1", .data = (void *)TPS65224, },
{}
};
MODULE_DEVICE_TABLE(of, tps6594_i2c_of_match_table);
@@ -216,15 +217,18 @@ static int tps6594_i2c_probe(struct i2c_client *client)
tps->reg = client->addr;
tps->irq = client->irq;

- tps->regmap = devm_regmap_init(dev, NULL, client, &tps6594_i2c_regmap_config);
- if (IS_ERR(tps->regmap))
- return dev_err_probe(dev, PTR_ERR(tps->regmap), "Failed to init regmap\n");
-
match = of_match_device(tps6594_i2c_of_match_table, dev);
if (!match)
return dev_err_probe(dev, -EINVAL, "Failed to find matching chip ID\n");
tps->chip_id = (unsigned long)match->data;

+ if (tps->chip_id == TPS65224)
+ tps6594_i2c_regmap_config.volatile_table = &tps65224_volatile_table;
+
+ tps->regmap = devm_regmap_init(dev, NULL, client, &tps6594_i2c_regmap_config);
+ if (IS_ERR(tps->regmap))
+ return dev_err_probe(dev, PTR_ERR(tps->regmap), "Failed to init regmap\n");
+
crc8_populate_msb(tps6594_i2c_crc_table, TPS6594_CRC8_POLYNOMIAL);

return tps6594_device_init(tps, enable_crc);
@@ -240,5 +244,5 @@ static struct i2c_driver tps6594_i2c_driver = {
module_i2c_driver(tps6594_i2c_driver);

MODULE_AUTHOR("Julien Panis <jpanis@xxxxxxxxxxxx>");
-MODULE_DESCRIPTION("TPS6594 I2C Interface Driver");
+MODULE_DESCRIPTION("I2C Interface Driver for TPS65224, TPS6594/3, and LP8764");
MODULE_LICENSE("GPL");
--
2.25.1