mfd: tps6594: Use volatile_table instead of volatile_reg

In regmap_config use volatile_table instead of volatile_reg. This change
makes it easier to add support for TPS65224 PMIC.
Signed-off-by: Bhargav Raviprakash <bhargav.r@ltts.com>
Acked-by: Julien Panis <jpanis@baylibre.com>
Link: https://lore.kernel.org/r/0109018f2f267f6e-3121fa42-4816-45f7-a96d-0d6b4678da5a-000000@ap-south-1.amazonses.comSigned-off-by: Lee Jones <lee@kernel.org>

drivers/mfd/tps6594-core.c

@@ -319,12 +319,16 @@ static struct regmap_irq_chip tps6594_irq_chip = {
 	.handle_post_irq = tps6594_handle_post_irq,
 };
 
-bool tps6594_is_volatile_reg(struct device *dev, unsigned int reg)
-{
-	return (reg >= TPS6594_REG_INT_TOP && reg <= TPS6594_REG_STAT_READBACK_ERR) ||
-	       reg == TPS6594_REG_RTC_STATUS;
-}
-EXPORT_SYMBOL_GPL(tps6594_is_volatile_reg);
+static const struct regmap_range tps6594_volatile_ranges[] = {
+	regmap_reg_range(TPS6594_REG_INT_TOP, TPS6594_REG_STAT_READBACK_ERR),
+	regmap_reg_range(TPS6594_REG_RTC_STATUS, TPS6594_REG_RTC_STATUS),
+};
+
+const struct regmap_access_table tps6594_volatile_table = {
+	.yes_ranges = tps6594_volatile_ranges,
+	.n_yes_ranges = ARRAY_SIZE(tps6594_volatile_ranges),
+};
+EXPORT_SYMBOL_GPL(tps6594_volatile_table);
 
 static int tps6594_check_crc_mode(struct tps6594 *tps, bool primary_pmic)
 {

drivers/mfd/tps6594-i2c.c

@@ -187,7 +187,7 @@ static const struct regmap_config tps6594_i2c_regmap_config = {
 	.reg_bits = 16,
 	.val_bits = 8,
 	.max_register = TPS6594_REG_DWD_FAIL_CNT_REG,
-	.volatile_reg = tps6594_is_volatile_reg,
+	.volatile_table = &tps6594_volatile_table,
 	.read = tps6594_i2c_read,
 	.write = tps6594_i2c_write,
 };

drivers/mfd/tps6594-spi.c

@@ -70,7 +70,7 @@ static const struct regmap_config tps6594_spi_regmap_config = {
 	.reg_bits = 16,
 	.val_bits = 8,
 	.max_register = TPS6594_REG_DWD_FAIL_CNT_REG,
-	.volatile_reg = tps6594_is_volatile_reg,
+	.volatile_table = &tps6594_volatile_table,
 	.reg_read = tps6594_spi_reg_read,
 	.reg_write = tps6594_spi_reg_write,
 	.use_single_read = true,

include/linux/mfd/tps6594.h

@@ -1337,7 +1337,9 @@ struct tps6594 {
 	struct regmap_irq_chip_data *irq_data;
 };
 
-bool tps6594_is_volatile_reg(struct device *dev, unsigned int reg);
+extern const struct regmap_access_table tps6594_volatile_table;
+extern const struct regmap_access_table tps65224_volatile_table;
+
 int tps6594_device_init(struct tps6594 *tps, bool enable_crc);
 
 #endif /*  __LINUX_MFD_TPS6594_H */