This series modifies the existing TPS6594 drivers to add support for the
TPS65224 PMIC device that is a derivative of TPS6594. TPS65224 has a
similar register map to TPS6594 with a few differences. SPI, I2C, ESM,
PFSM, Regulators and GPIO features overlap between the two devices.
TPS65224 is a Power Management IC (PMIC) which provides regulators and
other features like GPIOs, Watchdog, Error Signal Monitor (ESM) and
Pre-configurable Finite State Machine (PFSM). The SoC and the PMIC can
communicate through the I2C or SPI interfaces. The PMIC TPS65224
additionally has a 12-bit ADC.
Data Sheet for TPS65224: https://www.ti.com/product/TPS65224-Q1
Driver re-use is applied following the advice of the following series:
https://lore.kernel.org/lkml/[email protected]/
The features implemented in this series are:
- TPS65224 Register definitions
- Core (MFD I2C and SPI entry points)
- PFSM
- Regulators
- Pinctrl
TPS65224 Register definitions:
This patch adds macros for register field definitions of TPS65224
to the existing TPS6594 driver.
Core description:
I2C and SPI interface protocols are implemented, with and without
the bit-integrity error detection feature (CRC mode).
PFSM description:
Strictly speaking, PFSM is not hardware. It is a piece of code.
PMIC integrates a state machine which manages operational modes.
Depending on the current operational mode, some voltage domains
remain energized while others can be off.
PFSM driver can be used to trigger transitions between configured
states.
Regulators description:
4 BUCKs and 3 LDOs.
BUCK12 can be used in dual-phase mode.
Pinctrl description:
TPS65224 family has 6 GPIOs. Those GPIOs can also serve different
functions such as I2C or SPI interface or watchdog disable functions.
The driver provides both pinmuxing for the functions and GPIO capability.
This series was tested on linux-next tag: next-20240118
Test logs can be found here:
https://gist.github.com/LeonardMH/58ec135921fb1062ffd4a8b384831eb0
Changelog v2 -> v3:
- Corrected comments and refactored ioctl fn in pfsm driver
- Commit message and description changes in SPI
- Removed unwanted comments, fixing indentation and minor refactoring
in regulator driver
- ESM driver is removed from linux as it will be handled from MCU side
Bhargav Raviprakash (8):
mfd: tps6594: use volatile_table instead of volatile_reg
mfd: tps6594: add regmap config in match data
dt-bindings: mfd: ti,tps6594: Add TI TPS65224 PMIC
mfd: tps6594-i2c: Add TI TPS65224 PMIC I2C
mfd: tps6594-spi: Add TI TPS65224 PMIC SPI
mfd: tps6594-core: Add TI TPS65224 PMIC core
misc: tps6594-pfsm: Add TI TPS65224 PMIC PFSM
arch: arm64: dts: ti: k3-am62p5-sk: Add TPS65224 PMIC support in AM62P
dts
Nirmala Devi Mal Nadar (3):
mfd: tps6594: Add register definitions for TI TPS65224 PMIC
regulator: tps6594-regulator: Add TI TPS65224 PMIC regulators
pinctrl: pinctrl-tps6594: Add TPS65224 PMIC pinctrl and GPIO
.../devicetree/bindings/mfd/ti,tps6594.yaml | 1 +
arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 95 +++++
drivers/mfd/tps6594-core.c | 253 ++++++++++--
drivers/mfd/tps6594-i2c.c | 41 +-
drivers/mfd/tps6594-spi.c | 43 +-
drivers/misc/tps6594-pfsm.c | 48 ++-
drivers/pinctrl/pinctrl-tps6594.c | 287 ++++++++++++--
drivers/regulator/Kconfig | 4 +-
drivers/regulator/tps6594-regulator.c | 236 +++++++++--
include/linux/mfd/tps6594.h | 369 +++++++++++++++++-
10 files changed, 1239 insertions(+), 138 deletions(-)
base-commit: 2863b714f3ad0a9686f2de1b779228ad8c7a8052
--
2.25.1
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 <[email protected]>
Acked-by: Julien Panis <[email protected]>
---
drivers/mfd/tps6594-core.c | 16 ++++++++++------
drivers/mfd/tps6594-i2c.c | 2 +-
drivers/mfd/tps6594-spi.c | 2 +-
include/linux/mfd/tps6594.h | 4 +++-
4 files changed, 15 insertions(+), 9 deletions(-)
diff --git a/drivers/mfd/tps6594-core.c b/drivers/mfd/tps6594-core.c
index 783ee5990..089ab8cc8 100644
--- a/drivers/mfd/tps6594-core.c
+++ b/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)
{
diff --git a/drivers/mfd/tps6594-i2c.c b/drivers/mfd/tps6594-i2c.c
index 899c88c0f..c125b474b 100644
--- a/drivers/mfd/tps6594-i2c.c
+++ b/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,
};
diff --git a/drivers/mfd/tps6594-spi.c b/drivers/mfd/tps6594-spi.c
index 24b72847e..5afb1736f 100644
--- a/drivers/mfd/tps6594-spi.c
+++ b/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,
diff --git a/include/linux/mfd/tps6594.h b/include/linux/mfd/tps6594.h
index 1d8969594..6c5a2889f 100644
--- a/include/linux/mfd/tps6594.h
+++ b/include/linux/mfd/tps6594.h
@@ -1344,7 +1344,9 @@ 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 */
--
2.25.1