[PATCH v7 05/10] mfd: tps6594-spi: Add TI TPS65224 PMIC SPI

From: Bhargav Raviprakash
Date: Wed Apr 17 2024 - 07:51:22 EST


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

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

diff --git a/drivers/mfd/tps6594-spi.c b/drivers/mfd/tps6594-spi.c
index 5afb1736f..6ebccb79f 100644
--- a/drivers/mfd/tps6594-spi.c
+++ b/drivers/mfd/tps6594-spi.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * SPI access driver for TI TPS6594/TPS6593/LP8764 PMICs
+ * SPI access driver for TI TPS65224/TPS6594/TPS6593/LP8764 PMICs
*
* Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/
*/
@@ -66,7 +66,7 @@ static int tps6594_spi_reg_write(void *context, unsigned int reg, unsigned int v
return spi_write(spi, buf, count);
}

-static const struct regmap_config tps6594_spi_regmap_config = {
+static struct regmap_config tps6594_spi_regmap_config = {
.reg_bits = 16,
.val_bits = 8,
.max_register = TPS6594_REG_DWD_FAIL_CNT_REG,
@@ -81,6 +81,7 @@ static const struct of_device_id tps6594_spi_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_spi_of_match_table);
@@ -101,15 +102,18 @@ static int tps6594_spi_probe(struct spi_device *spi)
tps->reg = spi_get_chipselect(spi, 0);
tps->irq = spi->irq;

- tps->regmap = devm_regmap_init(dev, NULL, spi, &tps6594_spi_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_spi_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_spi_regmap_config.volatile_table = &tps65224_volatile_table;
+
+ tps->regmap = devm_regmap_init(dev, NULL, spi, &tps6594_spi_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_spi_crc_table, TPS6594_CRC8_POLYNOMIAL);

return tps6594_device_init(tps, enable_crc);
@@ -125,5 +129,5 @@ static struct spi_driver tps6594_spi_driver = {
module_spi_driver(tps6594_spi_driver);

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