Re: [PATCH v1 2/4] mfd: tps6594: Add driver for TI TPS6594 PMIC

From: Lee Jones
Date: Fri Mar 03 2023 - 10:04:13 EST

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On Thu, 16 Feb 2023, Julien Panis wrote:

> This patch adds support for TPS6594 PMIC MFD core. It provides
> communication through the I2C and SPI interfaces, and supports
> protocols with embedded CRC data fields for safety applications.
>
> Signed-off-by: Julien Panis <jpanis@xxxxxxxxxxxx>
> ---
> drivers/mfd/Kconfig | 32 ++
> drivers/mfd/Makefile | 3 +
> drivers/mfd/tps6594-core.c | 413 ++++++++++++++
> drivers/mfd/tps6594-i2c.c | 240 +++++++++
> drivers/mfd/tps6594-spi.c | 125 +++++
> include/linux/mfd/tps6594.h | 1018 +++++++++++++++++++++++++++++++++++
> 6 files changed, 1831 insertions(+)
> create mode 100644 drivers/mfd/tps6594-core.c
> create mode 100644 drivers/mfd/tps6594-i2c.c
> create mode 100644 drivers/mfd/tps6594-spi.c
> create mode 100644 include/linux/mfd/tps6594.h
>
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 30db49f31866..3d2f5a10f54b 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -1690,6 +1690,38 @@ config MFD_TPS65912_SPI
> If you say yes here you get support for the TPS65912 series of
> PM chips with SPI interface.
>
> +config MFD_TPS6594
> + tristate
> + select MFD_CORE
> + select REGMAP
> + select REGMAP_IRQ
> +
> +config MFD_TPS6594_I2C
> + tristate "TI TPS6594 Power Management chip with I2C"
> + select MFD_TPS6594
> + select REGMAP_I2C
> + select CRC8
> + depends on I2C
> + help
> + If you say yes here you get support for the TPS6594 series of
> + PM chips with I2C interface.
> +
> + This driver can also be built as a module. If so, the module
> + will be called tps6594-i2c.
> +
> +config MFD_TPS6594_SPI
> + tristate "TI TPS6594 Power Management chip with SPI"
> + select MFD_TPS6594
> + select REGMAP_SPI
> + select CRC8
> + depends on SPI_MASTER
> + help
> + If you say yes here you get support for the TPS6594 series of
> + PM chips with SPI interface.
> +
> + This driver can also be built as a module. If so, the module
> + will be called tps6594-spi.
> +
> config TWL4030_CORE
> bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 Support"
> depends on I2C=y
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index 457471478a93..d2cba7326b07 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -102,6 +102,9 @@ obj-$(CONFIG_MFD_TPS65910) += tps65910.o
> obj-$(CONFIG_MFD_TPS65912) += tps65912-core.o
> obj-$(CONFIG_MFD_TPS65912_I2C) += tps65912-i2c.o
> obj-$(CONFIG_MFD_TPS65912_SPI) += tps65912-spi.o
> +obj-$(CONFIG_MFD_TPS6594) += tps6594-core.o
> +obj-$(CONFIG_MFD_TPS6594_I2C) += tps6594-i2c.o
> +obj-$(CONFIG_MFD_TPS6594_SPI) += tps6594-spi.o
> obj-$(CONFIG_MENELAUS) += menelaus.o
>
> obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o
> diff --git a/drivers/mfd/tps6594-core.c b/drivers/mfd/tps6594-core.c
> new file mode 100644
> index 000000000000..a81a35324ab8
> --- /dev/null
> +++ b/drivers/mfd/tps6594-core.c
> @@ -0,0 +1,413 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Core functions for TI TPS6594/TPS6593/LP8764X PMICs
> + *
> + * Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
> + */
> +
> +#include <linux/completion.h>
> +#include <linux/interrupt.h>
> +#include <linux/module.h>
> +#include <linux/of_device.h>
> +
> +#include <linux/mfd/core.h>
> +#include <linux/mfd/tps6594.h>
> +
> +#define TPS6594_CRC_SYNC_TIMEOUT_MS 150
> +
> +/* Completion to synchronize CRC feature enabling on all PMICs */
> +static DECLARE_COMPLETION(tps6594_crc_comp);
> +
> +static const struct resource tps6594_regulator_resources[] = {
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK1_OV, TPS6594_IRQ_NAME_BUCK1_OV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK1_UV, TPS6594_IRQ_NAME_BUCK1_UV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK1_SC, TPS6594_IRQ_NAME_BUCK1_SC),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK1_ILIM, TPS6594_IRQ_NAME_BUCK1_ILIM),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK2_OV, TPS6594_IRQ_NAME_BUCK2_OV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK2_UV, TPS6594_IRQ_NAME_BUCK2_UV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK2_SC, TPS6594_IRQ_NAME_BUCK2_SC),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK2_ILIM, TPS6594_IRQ_NAME_BUCK2_ILIM),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK3_OV, TPS6594_IRQ_NAME_BUCK3_OV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK3_UV, TPS6594_IRQ_NAME_BUCK3_UV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK3_SC, TPS6594_IRQ_NAME_BUCK3_SC),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK3_ILIM, TPS6594_IRQ_NAME_BUCK3_ILIM),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK4_OV, TPS6594_IRQ_NAME_BUCK4_OV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK4_UV, TPS6594_IRQ_NAME_BUCK4_UV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK4_SC, TPS6594_IRQ_NAME_BUCK4_SC),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK4_ILIM, TPS6594_IRQ_NAME_BUCK4_ILIM),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK5_OV, TPS6594_IRQ_NAME_BUCK5_OV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK5_UV, TPS6594_IRQ_NAME_BUCK5_UV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK5_SC, TPS6594_IRQ_NAME_BUCK5_SC),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BUCK5_ILIM, TPS6594_IRQ_NAME_BUCK5_ILIM),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO1_OV, TPS6594_IRQ_NAME_LDO1_OV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO1_UV, TPS6594_IRQ_NAME_LDO1_UV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO1_SC, TPS6594_IRQ_NAME_LDO1_SC),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO1_ILIM, TPS6594_IRQ_NAME_LDO1_ILIM),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO2_OV, TPS6594_IRQ_NAME_LDO2_OV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO2_UV, TPS6594_IRQ_NAME_LDO2_UV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO2_SC, TPS6594_IRQ_NAME_LDO2_SC),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO2_ILIM, TPS6594_IRQ_NAME_LDO2_ILIM),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO3_OV, TPS6594_IRQ_NAME_LDO3_OV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO3_UV, TPS6594_IRQ_NAME_LDO3_UV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO3_SC, TPS6594_IRQ_NAME_LDO3_SC),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO3_ILIM, TPS6594_IRQ_NAME_LDO3_ILIM),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO4_OV, TPS6594_IRQ_NAME_LDO4_OV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO4_UV, TPS6594_IRQ_NAME_LDO4_UV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO4_SC, TPS6594_IRQ_NAME_LDO4_SC),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_LDO4_ILIM, TPS6594_IRQ_NAME_LDO4_ILIM),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VCCA_OV, TPS6594_IRQ_NAME_VCCA_OV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VCCA_UV, TPS6594_IRQ_NAME_VCCA_UV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VMON1_OV, TPS6594_IRQ_NAME_VMON1_OV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VMON1_UV, TPS6594_IRQ_NAME_VMON1_UV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VMON1_RV, TPS6594_IRQ_NAME_VMON1_RV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VMON2_OV, TPS6594_IRQ_NAME_VMON2_OV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VMON2_UV, TPS6594_IRQ_NAME_VMON2_UV),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VMON2_RV, TPS6594_IRQ_NAME_VMON2_RV),
> +};
> +
> +static const struct resource tps6594_pinctrl_resources[] = {
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO9, TPS6594_IRQ_NAME_GPIO9),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO10, TPS6594_IRQ_NAME_GPIO10),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO11, TPS6594_IRQ_NAME_GPIO11),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO1, TPS6594_IRQ_NAME_GPIO1),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO2, TPS6594_IRQ_NAME_GPIO2),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO3, TPS6594_IRQ_NAME_GPIO3),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO4, TPS6594_IRQ_NAME_GPIO4),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO5, TPS6594_IRQ_NAME_GPIO5),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO6, TPS6594_IRQ_NAME_GPIO6),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO7, TPS6594_IRQ_NAME_GPIO7),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_GPIO8, TPS6594_IRQ_NAME_GPIO8),
> +};
> +
> +static const struct resource tps6594_pfsm_resources[] = {
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_NPWRON_START, TPS6594_IRQ_NAME_NPWRON_START),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_ENABLE, TPS6594_IRQ_NAME_ENABLE),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_FSD, TPS6594_IRQ_NAME_FSD),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_SOFT_REBOOT, TPS6594_IRQ_NAME_SOFT_REBOOT),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BIST_PASS, TPS6594_IRQ_NAME_BIST_PASS),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_EXT_CLK, TPS6594_IRQ_NAME_EXT_CLK),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_TWARN, TPS6594_IRQ_NAME_TWARN),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_TSD_ORD, TPS6594_IRQ_NAME_TSD_ORD),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_BIST_FAIL, TPS6594_IRQ_NAME_BIST_FAIL),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_REG_CRC_ERR, TPS6594_IRQ_NAME_REG_CRC_ERR),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_RECOV_CNT, TPS6594_IRQ_NAME_RECOV_CNT),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_SPMI_ERR, TPS6594_IRQ_NAME_SPMI_ERR),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_NPWRON_LONG, TPS6594_IRQ_NAME_NPWRON_LONG),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_NINT_READBACK, TPS6594_IRQ_NAME_NINT_READBACK),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_NRSTOUT_READBACK, TPS6594_IRQ_NAME_NRSTOUT_READBACK),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_TSD_IMM, TPS6594_IRQ_NAME_TSD_IMM),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_VCCA_OVP, TPS6594_IRQ_NAME_VCCA_OVP),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_PFSM_ERR, TPS6594_IRQ_NAME_PFSM_ERR),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_IMM_SHUTDOWN, TPS6594_IRQ_NAME_IMM_SHUTDOWN),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_ORD_SHUTDOWN, TPS6594_IRQ_NAME_ORD_SHUTDOWN),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_MCU_PWR_ERR, TPS6594_IRQ_NAME_MCU_PWR_ERR),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_SOC_PWR_ERR, TPS6594_IRQ_NAME_SOC_PWR_ERR),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_COMM_FRM_ERR, TPS6594_IRQ_NAME_COMM_FRM_ERR),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_COMM_CRC_ERR, TPS6594_IRQ_NAME_COMM_CRC_ERR),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_COMM_ADR_ERR, TPS6594_IRQ_NAME_COMM_ADR_ERR),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_EN_DRV_READBACK, TPS6594_IRQ_NAME_EN_DRV_READBACK),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_NRSTOUT_SOC_READBACK,
> + TPS6594_IRQ_NAME_NRSTOUT_SOC_READBACK),
> +};
> +
> +static const struct resource tps6594_esm_resources[] = {
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_ESM_SOC_PIN, TPS6594_IRQ_NAME_ESM_SOC_PIN),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_ESM_SOC_FAIL, TPS6594_IRQ_NAME_ESM_SOC_FAIL),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_ESM_SOC_RST, TPS6594_IRQ_NAME_ESM_SOC_RST),
> +};
> +
> +static const struct resource tps6594_rtc_resources[] = {
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_TIMER, TPS6594_IRQ_NAME_TIMER),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_ALARM, TPS6594_IRQ_NAME_ALARM),
> + DEFINE_RES_IRQ_NAMED(TPS6594_IRQ_POWER_UP, TPS6594_IRQ_NAME_POWERUP),
> +};
> +
> +static const struct mfd_cell tps6594_cells[] = {
> + {
> + .name = "tps6594-regulator",
> + .resources = tps6594_regulator_resources,
> + .num_resources = ARRAY_SIZE(tps6594_regulator_resources),
> + },
> + {
> + .name = "tps6594-pinctrl",
> + .resources = tps6594_pinctrl_resources,
> + .num_resources = ARRAY_SIZE(tps6594_pinctrl_resources),
> + },
> + {
> + .name = "tps6594-pfsm",
> + .resources = tps6594_pfsm_resources,
> + .num_resources = ARRAY_SIZE(tps6594_pfsm_resources),
> + },
> + {
> + .name = "tps6594-esm",
> + .resources = tps6594_esm_resources,
> + .num_resources = ARRAY_SIZE(tps6594_esm_resources),
> + },
> + {
> + .name = "tps6594-rtc",
> + .resources = tps6594_rtc_resources,
> + .num_resources = ARRAY_SIZE(tps6594_rtc_resources),
> + },
> +};

Use MFD_CELL_RES() here.

> +static const struct regmap_irq tps6594_irqs[] = {
> + /* INT_BUCK1_2 register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK1_OV, 0, TPS6594_BIT_BUCKX_OV_INT(0)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK1_UV, 0, TPS6594_BIT_BUCKX_UV_INT(0)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK1_SC, 0, TPS6594_BIT_BUCKX_SC_INT(0)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK1_ILIM, 0, TPS6594_BIT_BUCKX_ILIM_INT(0)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK2_OV, 0, TPS6594_BIT_BUCKX_OV_INT(1)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK2_UV, 0, TPS6594_BIT_BUCKX_UV_INT(1)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK2_SC, 0, TPS6594_BIT_BUCKX_SC_INT(1)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK2_ILIM, 0, TPS6594_BIT_BUCKX_ILIM_INT(1)),

Perhaps some spaces between the blocks will make it easier on the eye.

> + /* INT_BUCK3_4 register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK3_OV, 1, TPS6594_BIT_BUCKX_OV_INT(2)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK3_UV, 1, TPS6594_BIT_BUCKX_UV_INT(2)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK3_SC, 1, TPS6594_BIT_BUCKX_SC_INT(2)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK3_ILIM, 1, TPS6594_BIT_BUCKX_ILIM_INT(2)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK4_OV, 1, TPS6594_BIT_BUCKX_OV_INT(3)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK4_UV, 1, TPS6594_BIT_BUCKX_UV_INT(3)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK4_SC, 1, TPS6594_BIT_BUCKX_SC_INT(3)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK4_ILIM, 1, TPS6594_BIT_BUCKX_ILIM_INT(3)),
> + /* INT_BUCK5 register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK5_OV, 2, TPS6594_BIT_BUCKX_OV_INT(4)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK5_UV, 2, TPS6594_BIT_BUCKX_UV_INT(4)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK5_SC, 2, TPS6594_BIT_BUCKX_SC_INT(4)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BUCK5_ILIM, 2, TPS6594_BIT_BUCKX_ILIM_INT(4)),
> + /* INT_LDO1_2 register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO1_OV, 3, TPS6594_BIT_LDOX_OV_INT(0)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO1_UV, 3, TPS6594_BIT_LDOX_UV_INT(0)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO1_SC, 3, TPS6594_BIT_LDOX_SC_INT(0)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO1_ILIM, 3, TPS6594_BIT_LDOX_ILIM_INT(0)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO2_OV, 3, TPS6594_BIT_LDOX_OV_INT(1)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO2_UV, 3, TPS6594_BIT_LDOX_UV_INT(1)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO2_SC, 3, TPS6594_BIT_LDOX_SC_INT(1)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO2_ILIM, 3, TPS6594_BIT_LDOX_ILIM_INT(1)),
> + /* INT_LDO3_4 register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO3_OV, 4, TPS6594_BIT_LDOX_OV_INT(2)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO3_UV, 4, TPS6594_BIT_LDOX_UV_INT(2)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO3_SC, 4, TPS6594_BIT_LDOX_SC_INT(2)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO3_ILIM, 4, TPS6594_BIT_LDOX_ILIM_INT(2)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO4_OV, 4, TPS6594_BIT_LDOX_OV_INT(3)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO4_UV, 4, TPS6594_BIT_LDOX_UV_INT(3)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO4_SC, 4, TPS6594_BIT_LDOX_SC_INT(3)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_LDO4_ILIM, 4, TPS6594_BIT_LDOX_ILIM_INT(3)),
> + /* INT_VMON register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_VCCA_OV, 5, TPS6594_BIT_VCCA_OV_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_VCCA_UV, 5, TPS6594_BIT_VCCA_UV_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_VMON1_OV, 5, TPS6594_BIT_VMON1_OV_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_VMON1_UV, 5, TPS6594_BIT_VMON1_UV_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_VMON1_RV, 5, TPS6594_BIT_VMON1_RV_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_VMON2_OV, 5, TPS6594_BIT_VMON2_OV_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_VMON2_UV, 5, TPS6594_BIT_VMON2_UV_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_VMON2_RV, 5, TPS6594_BIT_VMON2_RV_INT),
> + /* INT_GPIO register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_GPIO9, 6, TPS6594_BIT_GPIO9_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_GPIO10, 6, TPS6594_BIT_GPIO10_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_GPIO11, 6, TPS6594_BIT_GPIO11_INT),
> + /* INT_GPIO1_8 register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_GPIO1, 7, TPS6594_BIT_GPIOX_INT(0)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_GPIO2, 7, TPS6594_BIT_GPIOX_INT(1)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_GPIO3, 7, TPS6594_BIT_GPIOX_INT(2)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_GPIO4, 7, TPS6594_BIT_GPIOX_INT(3)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_GPIO5, 7, TPS6594_BIT_GPIOX_INT(4)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_GPIO6, 7, TPS6594_BIT_GPIOX_INT(5)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_GPIO7, 7, TPS6594_BIT_GPIOX_INT(6)),
> + REGMAP_IRQ_REG(TPS6594_IRQ_GPIO8, 7, TPS6594_BIT_GPIOX_INT(7)),
> + /* INT_STARTUP register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_NPWRON_START, 8, TPS6594_BIT_NPWRON_START_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_ENABLE, 8, TPS6594_BIT_ENABLE_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_FSD, 8, TPS6594_BIT_FSD_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_SOFT_REBOOT, 8, TPS6594_BIT_SOFT_REBOOT_INT),
> + /* INT_MISC register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_BIST_PASS, 9, TPS6594_BIT_BIST_PASS_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_EXT_CLK, 9, TPS6594_BIT_EXT_CLK_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_TWARN, 9, TPS6594_BIT_TWARN_INT),
> + /* INT_MODERATE_ERR register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_TSD_ORD, 10, TPS6594_BIT_TSD_ORD_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_BIST_FAIL, 10, TPS6594_BIT_BIST_FAIL_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_REG_CRC_ERR, 10, TPS6594_BIT_REG_CRC_ERR_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_RECOV_CNT, 10, TPS6594_BIT_RECOV_CNT_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_SPMI_ERR, 10, TPS6594_BIT_SPMI_ERR_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_NPWRON_LONG, 10, TPS6594_BIT_NPWRON_LONG_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_NINT_READBACK, 10, TPS6594_BIT_NINT_READBACK_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_NRSTOUT_READBACK, 10, TPS6594_BIT_NRSTOUT_READBACK_INT),
> + /* INT_SEVERE_ERR register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_TSD_IMM, 11, TPS6594_BIT_TSD_IMM_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_VCCA_OVP, 11, TPS6594_BIT_VCCA_OVP_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_PFSM_ERR, 11, TPS6594_BIT_PFSM_ERR_INT),
> + /* INT_FSM_ERR register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_IMM_SHUTDOWN, 12, TPS6594_BIT_IMM_SHUTDOWN_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_ORD_SHUTDOWN, 12, TPS6594_BIT_ORD_SHUTDOWN_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_MCU_PWR_ERR, 12, TPS6594_BIT_MCU_PWR_ERR_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_SOC_PWR_ERR, 12, TPS6594_BIT_SOC_PWR_ERR_INT),
> + /* INT_COMM_ERR register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_COMM_FRM_ERR, 13, TPS6594_BIT_COMM_FRM_ERR_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_COMM_CRC_ERR, 13, TPS6594_BIT_COMM_CRC_ERR_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_COMM_ADR_ERR, 13, TPS6594_BIT_COMM_ADR_ERR_INT),
> + /* INT_READBACK_ERR register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_EN_DRV_READBACK, 14, TPS6594_BIT_EN_DRV_READBACK_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_NRSTOUT_SOC_READBACK, 14, TPS6594_BIT_NRSTOUT_SOC_READBACK_INT),
> + /* INT_ESM register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_ESM_SOC_PIN, 15, TPS6594_BIT_ESM_SOC_PIN_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_ESM_SOC_FAIL, 15, TPS6594_BIT_ESM_SOC_FAIL_INT),
> + REGMAP_IRQ_REG(TPS6594_IRQ_ESM_SOC_RST, 15, TPS6594_BIT_ESM_SOC_RST_INT),
> + /* RTC_STATUS register */
> + REGMAP_IRQ_REG(TPS6594_IRQ_TIMER, 16, TPS6594_BIT_TIMER),
> + REGMAP_IRQ_REG(TPS6594_IRQ_ALARM, 16, TPS6594_BIT_ALARM),
> + REGMAP_IRQ_REG(TPS6594_IRQ_POWER_UP, 16, TPS6594_BIT_POWER_UP),
> +};
> +
> +static const unsigned int tps6594_irq_reg[] = {
> + TPS6594_REG_INT_BUCK1_2,
> + TPS6594_REG_INT_BUCK3_4,
> + TPS6594_REG_INT_BUCK5,
> + TPS6594_REG_INT_LDO1_2,
> + TPS6594_REG_INT_LDO3_4,
> + TPS6594_REG_INT_VMON,
> + TPS6594_REG_INT_GPIO,
> + TPS6594_REG_INT_GPIO1_8,
> + TPS6594_REG_INT_STARTUP,
> + TPS6594_REG_INT_MISC,
> + TPS6594_REG_INT_MODERATE_ERR,
> + TPS6594_REG_INT_SEVERE_ERR,
> + TPS6594_REG_INT_FSM_ERR,
> + TPS6594_REG_INT_COMM_ERR,
> + TPS6594_REG_INT_READBACK_ERR,
> + TPS6594_REG_INT_ESM,
> + TPS6594_REG_RTC_STATUS,
> +};
> +
> +static inline unsigned int tps6594_get_irq_reg(struct regmap_irq_chip_data *data,
> + unsigned int base, int index)
> +{
> + return tps6594_irq_reg[index];
> +};
> +
> +static struct regmap_irq_chip tps6594_irq_chip = {
> + .ack_base = TPS6594_REG_INT_BUCK1_2,
> + .ack_invert = 1,
> + .clear_ack = 1,
> + .init_ack_masked = 1,
> + .num_regs = ARRAY_SIZE(tps6594_irq_reg),
> + .irqs = tps6594_irqs,
> + .num_irqs = ARRAY_SIZE(tps6594_irqs),
> + .get_irq_reg = tps6594_get_irq_reg,
> +};
> +
> +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 int tps6594_check_crc_mode(struct tps6594 *tps, bool primary_pmic)
> +{
> + int ret;
> +
> + /*
> + * Ensure that CRC is enabled.
> + * Once CRC is enabled, it can't be disabled until next power cycle.
> + */
> + tps->use_crc = true;
> + ret = regmap_test_bits(tps->regmap, TPS6594_REG_SERIAL_IF_CONFIG,
> + TPS6594_BIT_I2C1_SPI_CRC_EN);
> + if (ret < 0) {
> + tps->use_crc = false;
> + } else if (ret == 0) {
> + tps->use_crc = false;

Will this value be used again after you return an error?

> + ret = -EIO;
> + } else {
> + dev_info(tps->dev, "CRC feature enabled on %s PMIC",
> + primary_pmic ? "primary" : "secondary");
> + ret = 0;

I would consider reversing the logic of the if()s, default to 'false'
then set 'true' in here before the print.

> + }
> +
> + return ret;
> +}
> +
> +static int tps6594_set_crc_feature(struct tps6594 *tps)
> +{
> + int ret;
> +
> + /* Force PFSM I2C_2 trigger to enable CRC on primary PMIC */
> + ret = regmap_write_bits(tps->regmap, TPS6594_REG_FSM_I2C_TRIGGERS,
> + TPS6594_BIT_TRIGGER_I2C(2), TPS6594_BIT_TRIGGER_I2C(2));
> + if (ret)
> + return ret;
> +
> + /* Wait for PFSM to process trigger */
> + msleep(20);

Is this the time specified in the datasheet?

> + return tps6594_check_crc_mode(tps, true);
> +}
> +
> +int tps6594_device_init(struct tps6594 *tps)
> +{
> + struct device *dev = tps->dev;
> + unsigned int prop;

Since this only has a single use, better to rename it to something specific.

> + unsigned long timeout = msecs_to_jiffies(TPS6594_CRC_SYNC_TIMEOUT_MS);
> + int n_dev = ARRAY_SIZE(tps6594_cells);
> + int ret;
> +
> + /* Keep PMIC in ACTIVE state */
> + ret = regmap_set_bits(tps->regmap, TPS6594_REG_FSM_NSLEEP_TRIGGERS,
> + TPS6594_BIT_NSLEEP1B | TPS6594_BIT_NSLEEP2B);
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to set PMIC state\n");
> +
> + /*
> + * CRC mode can be used with I2C or SPI protocols.
> + * If this mode is specified for primary PMIC, it will also be applied to secondary PMICs
> + * through SPMI serial interface.
> + * In this multi-PMIC synchronization scheme, the primary PMIC is the controller device
> + * on the SPMI bus, and the secondary PMICs are the target devices on the SPMI bus.
> + */
> + prop = of_property_read_bool(dev->of_node, "ti,use-crc");
> + if (prop) {
> + /* Enable CRC feature on primary PMIC */
> + ret = tps6594_set_crc_feature(tps);
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to set crc feature\n");

"CRC"

> + /* Notify secondary PMICs that CRC feature is enabled */
> + complete_all(&tps6594_crc_comp);
> + } else {
> + /* Wait for CRC feature enabling event, if any, from primary PMIC */
> + ret = wait_for_completion_interruptible_timeout(&tps6594_crc_comp, timeout);
> + if (ret == 0) {
> + dev_info(tps->dev, "CRC feature disabled");
> + } else if (ret > 0) {
> + ret = tps6594_check_crc_mode(tps, false);
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to set crc feature\n");
> + } else {
> + return ret;
> + }
> + }
> +
> + tps6594_irq_chip.name = devm_kasprintf(dev, GFP_KERNEL, "%s-%ld-0x%02x",
> + dev->driver->name, tps->chip_id, tps->reg);
> +
> + ret = devm_regmap_add_irq_chip(dev, tps->regmap, tps->irq, IRQF_SHARED | IRQF_ONESHOT,
> + 0, &tps6594_irq_chip, &tps->irq_data);
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to add regmap irq\n");

IRQ

> + /* No RTC for LP8764X */
> + if (tps->chip_id == LP8764X)
> + n_dev--;

Super not keen on passing a larger structure with a reduced n_devs. It
may work, but it's a hack. It also leaves the structure vulnerable since
you now depend on it being ordered.

Better to put the RTC in a separate structure and call
mfd_add_device() again if LP8764X.

> + ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO, tps6594_cells, n_dev,
> + NULL, 0, regmap_irq_get_domain(tps->irq_data));
> + if (ret)
> + return dev_err_probe(dev, ret, "Failed to add child devices\n");
> +
> + return 0;
> +}
> +EXPORT_SYMBOL_GPL(tps6594_device_init);
> +
> +MODULE_AUTHOR("Julien Panis <jpanis@xxxxxxxxxxxx>");
> +MODULE_DESCRIPTION("TPS6594 MFD Driver");

Drop MFD from the description.

> +MODULE_LICENSE("GPL");
> diff --git a/drivers/mfd/tps6594-i2c.c b/drivers/mfd/tps6594-i2c.c
> new file mode 100644
> index 000000000000..fc159a32082a
> --- /dev/null
> +++ b/drivers/mfd/tps6594-i2c.c
> @@ -0,0 +1,240 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * I2C access driver for TI TPS6594/TPS6593/LP8764X PMICs
> + *
> + * Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
> + */
> +
> +#include <linux/crc8.h>
> +#include <linux/i2c.h>
> +#include <linux/module.h>
> +#include <linux/mod_devicetable.h>
> +#include <linux/of_device.h>
> +#include <linux/regmap.h>
> +
> +#include <linux/mfd/tps6594.h>
> +
> +DECLARE_CRC8_TABLE(tps6594_i2c_crc_table);
> +
> +static int tps6594_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
> +{
> + int ret = i2c_transfer(adap, msgs, num);
> +
> + if (ret == num)
> + return 0;
> + else if (ret < 0)
> + return ret;
> + else
> + return -EIO;
> +}
> +
> +static int tps6594_i2c_reg_read_with_crc(struct i2c_client *client, u8 page, u8 reg, u8 *val)
> +{
> + struct i2c_msg msgs[2];
> + u8 buf_rx[] = {0, 0};

Prefer spaces after the '{' and before the '}' throughout (even below).

> + /* I2C address = I2C base address + Page index */
> + const u8 addr = client->addr + page;
> + /*
> + * CRC is calculated from every bit included in the protocol
> + * except the ACK bits from the target. Byte stream is:
> + * - B0: (I2C_addr_7bits << 1) | WR_bit, with WR_bit = 0
> + * - B1: reg
> + * - B2: (I2C_addr_7bits << 1) | RD_bit, with RD_bit = 1
> + * - B3: val
> + * - B4: CRC from B0-B1-B2-B3
> + */
> + u8 crc_data[] = {addr << 1, reg, addr << 1 | 1, 0};
> + int ret;
> +
> + /* Write register */
> + msgs[0].addr = addr;
> + msgs[0].flags = 0;
> + msgs[0].len = 1;
> + msgs[0].buf = ®
> +
> + /* Read data and CRC */
> + msgs[1].addr = msgs[0].addr;
> + msgs[1].flags = I2C_M_RD;
> + msgs[1].len = 2;
> + msgs[1].buf = buf_rx;
> +
> + ret = tps6594_i2c_transfer(client->adapter, msgs, 2);
> + if (ret < 0)
> + return ret;
> +
> + crc_data[sizeof(crc_data) - 1] = *val = buf_rx[0];
> + if (buf_rx[1] != crc8(tps6594_i2c_crc_table, crc_data, sizeof(crc_data), CRC8_INIT_VALUE))
> + return -EIO;
> +
> + return ret;
> +}
> +
> +static int tps6594_i2c_reg_write_with_crc(struct i2c_client *client, u8 page, u8 reg, u8 val)
> +{
> + struct i2c_msg msg;
> + u8 buf[] = {reg, val, 0};
> + /* I2C address = I2C base address + Page index */
> + const u8 addr = client->addr + page;
> + /*
> + * CRC is calculated from every bit included in the protocol
> + * except the ACK bits from the target. Byte stream is:
> + * - B0: (I2C_addr_7bits << 1) | WR_bit, with WR_bit = 0
> + * - B1: reg
> + * - B2: val
> + * - B3: CRC from B0-B1-B2
> + */
> + const u8 crc_data[] = {addr << 1, reg, val};
> +
> + /* Write register, data and CRC */
> + msg.addr = addr;
> + msg.flags = client->flags & I2C_M_TEN;
> + msg.len = sizeof(buf);
> + msg.buf = buf;
> +
> + buf[msg.len - 1] = crc8(tps6594_i2c_crc_table, crc_data, sizeof(crc_data), CRC8_INIT_VALUE);
> +
> + return tps6594_i2c_transfer(client->adapter, &msg, 1);
> +}
> +
> +static int tps6594_i2c_read(void *context, const void *reg_buf, size_t reg_size,
> + void *val_buf, size_t val_size)
> +{
> + struct i2c_client *client = context;
> + struct tps6594 *tps = i2c_get_clientdata(client);
> + struct i2c_msg msgs[2];
> + const u8 *reg_bytes = reg_buf;
> + u8 *val_bytes = val_buf;
> + const u8 page = reg_bytes[1];
> + u8 reg = reg_bytes[0];
> + int ret = 0;
> + int i;
> +
> + if (tps->use_crc) {
> + /*
> + * Auto-increment feature does not support CRC protocol.
> + * Converts the bulk read operation into a series of single read operations.
> + */
> + for (i = 0 ; ret == 0 && i < val_size ; i++)
> + ret = tps6594_i2c_reg_read_with_crc(client, page, reg + i, val_bytes + i);
> +
> + return ret;
> + }
> +
> + /* Write register: I2C address = I2C base address + Page index */
> + msgs[0].addr = client->addr + page;
> + msgs[0].flags = 0;
> + msgs[0].len = 1;
> + msgs[0].buf = ®
> +
> + /* Read data */
> + msgs[1].addr = msgs[0].addr;
> + msgs[1].flags = I2C_M_RD;
> + msgs[1].len = val_size;
> + msgs[1].buf = val_bytes;
> +
> + return tps6594_i2c_transfer(client->adapter, msgs, 2);
> +}
> +
> +static int tps6594_i2c_write(void *context, const void *data, size_t count)
> +{
> + struct i2c_client *client = context;
> + struct tps6594 *tps = i2c_get_clientdata(client);
> + struct i2c_msg msg;
> + const u8 *bytes = data;
> + u8 *buf;
> + const u8 page = bytes[1];
> + const u8 reg = bytes[0];
> + int ret = 0;
> + int i;
> +
> + if (tps->use_crc) {
> + /*
> + * Auto-increment feature does not support CRC protocol.
> + * Converts the bulk write operation into a series of single write operations.
> + */
> + for (i = 0 ; ret == 0 && i < count - 2 ; i++)
> + ret = tps6594_i2c_reg_write_with_crc(client, page, reg + i, bytes[i + 2]);
> +
> + return ret;
> + }
> +
> + /* Setup buffer: page byte is not sent */
> + buf = kzalloc(--count, GFP_KERNEL);
> + if (!buf)
> + return -ENOMEM;
> +
> + buf[0] = reg;
> + for (i = 0 ; i < count - 1 ; i++)
> + buf[i + 1] = bytes[i + 2];
> +
> + /* Write register and data: I2C address = I2C base address + Page index */
> + msg.addr = client->addr + page;
> + msg.flags = client->flags & I2C_M_TEN;
> + msg.len = count;
> + msg.buf = buf;
> +
> + ret = tps6594_i2c_transfer(client->adapter, &msg, 1);
> +
> + kfree(buf);
> + return ret;
> +}
> +
> +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,
> + .read = tps6594_i2c_read,
> + .write = tps6594_i2c_write,
> +};
> +
> +static const struct of_device_id tps6594_i2c_of_match_table[] = {
> + { .compatible = "ti,tps6594", .data = (void *)TPS6594, },
> + { .compatible = "ti,tps6593", .data = (void *)TPS6593, },
> + { .compatible = "ti,lp8764x", .data = (void *)LP8764X, },
> + {}
> +};
> +MODULE_DEVICE_TABLE(of, tps6594_i2c_of_match_table);
> +
> +static int tps6594_i2c_probe(struct i2c_client *client)
> +{
> + struct device *dev = &client->dev;
> + struct tps6594 *tps;
> + const struct of_device_id *match;
> +
> + tps = devm_kzalloc(dev, sizeof(*tps), GFP_KERNEL);
> + if (!tps)
> + return -ENOMEM;
> +
> + i2c_set_clientdata(client, tps);
> +
> + tps->dev = dev;
> + 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, PTR_ERR(match), "Failed to find matching chip ID\n");
> + tps->chip_id = (unsigned long)match->data;
> +
> + crc8_populate_msb(tps6594_i2c_crc_table, TPS6594_CRC8_POLYNOMIAL);
> +
> + return tps6594_device_init(tps);
> +}
> +
> +static struct i2c_driver tps6594_i2c_driver = {
> + .driver = {
> + .name = "tps6594",
> + .of_match_table = tps6594_i2c_of_match_table,
> + },
> + .probe_new = tps6594_i2c_probe,
> +};
> +module_i2c_driver(tps6594_i2c_driver);
> +
> +MODULE_AUTHOR("Julien Panis <jpanis@xxxxxxxxxxxx>");
> +MODULE_DESCRIPTION("TPS6594 I2C Interface Driver");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/mfd/tps6594-spi.c b/drivers/mfd/tps6594-spi.c
> new file mode 100644
> index 000000000000..799a383935c5
> --- /dev/null
> +++ b/drivers/mfd/tps6594-spi.c
> @@ -0,0 +1,125 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * SPI access driver for TI TPS6594/TPS6593/LP8764X PMICs
> + *
> + * Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
> + */
> +
> +#include <linux/crc8.h>
> +#include <linux/module.h>
> +#include <linux/mod_devicetable.h>
> +#include <linux/of_device.h>
> +#include <linux/regmap.h>
> +#include <linux/spi/spi.h>
> +
> +#include <linux/mfd/tps6594.h>
> +
> +#define TPS6594_SPI_PAGE_SHIFT 5
> +#define TPS6594_SPI_READ_BIT BIT(4)
> +
> +DECLARE_CRC8_TABLE(tps6594_spi_crc_table);
> +
> +static int tps6594_spi_reg_read(void *context, unsigned int reg, unsigned int *val)
> +{
> + struct spi_device *spi = context;
> + struct tps6594 *tps = spi_get_drvdata(spi);
> + u8 buf[4] = {0};
> + size_t count_rx = 1;
> + int ret;
> +
> + buf[0] = reg;
> + buf[1] = TPS6594_REG_TO_PAGE(reg) << TPS6594_SPI_PAGE_SHIFT | TPS6594_SPI_READ_BIT;
> +
> + if (tps->use_crc)
> + count_rx++;
> +
> + ret = spi_write_then_read(spi, buf, 2, buf + 2, count_rx);
> + if (ret < 0)
> + return ret;
> +
> + if (tps->use_crc && buf[3] != crc8(tps6594_spi_crc_table, buf, 3, CRC8_INIT_VALUE))
> + return -EIO;
> +
> + *val = buf[2];
> +
> + return 0;
> +}
> +
> +static int tps6594_spi_reg_write(void *context, unsigned int reg, unsigned int val)
> +{
> + struct spi_device *spi = context;
> + struct tps6594 *tps = spi_get_drvdata(spi);
> + u8 buf[4] = {0};
> + size_t count = 3;
> +
> + buf[0] = reg;
> + buf[1] = TPS6594_REG_TO_PAGE(reg) << TPS6594_SPI_PAGE_SHIFT;
> + buf[2] = val;
> +
> + if (tps->use_crc)
> + buf[3] = crc8(tps6594_spi_crc_table, buf, count++, CRC8_INIT_VALUE);
> +
> + return spi_write(spi, buf, count);
> +}
> +
> +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,
> + .reg_read = tps6594_spi_reg_read,
> + .reg_write = tps6594_spi_reg_write,
> + .use_single_read = true,
> + .use_single_write = true,
> +};
> +
> +static const struct of_device_id tps6594_spi_of_match_table[] = {
> + { .compatible = "ti,tps6594", .data = (void *)TPS6594, },
> + { .compatible = "ti,tps6593", .data = (void *)TPS6593, },
> + { .compatible = "ti,lp8764x", .data = (void *)LP8764X, },
> + {}
> +};
> +MODULE_DEVICE_TABLE(of, tps6594_spi_of_match_table);
> +
> +static int tps6594_spi_probe(struct spi_device *spi)
> +{
> + struct device *dev = &spi->dev;
> + struct tps6594 *tps;
> + const struct of_device_id *match;
> +
> + tps = devm_kzalloc(dev, sizeof(*tps), GFP_KERNEL);
> + if (!tps)
> + return -ENOMEM;
> +
> + spi_set_drvdata(spi, tps);
> +
> + tps->dev = dev;
> + tps->reg = spi->chip_select;
> + 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, PTR_ERR(match), "Failed to find matching chip ID\n");
> + tps->chip_id = (unsigned long)match->data;
> +
> + crc8_populate_msb(tps6594_spi_crc_table, TPS6594_CRC8_POLYNOMIAL);
> +
> + return tps6594_device_init(tps);
> +}
> +
> +static struct spi_driver tps6594_spi_driver = {
> + .driver = {
> + .name = "tps6594",
> + .of_match_table = tps6594_spi_of_match_table,
> + },
> + .probe = tps6594_spi_probe,
> +};
> +module_spi_driver(tps6594_spi_driver);
> +
> +MODULE_AUTHOR("Julien Panis <jpanis@xxxxxxxxxxxx>");
> +MODULE_DESCRIPTION("TPS6594 SPI Interface Driver");
> +MODULE_LICENSE("GPL");
> diff --git a/include/linux/mfd/tps6594.h b/include/linux/mfd/tps6594.h
> new file mode 100644
> index 000000000000..e2ffd4dc034d
> --- /dev/null
> +++ b/include/linux/mfd/tps6594.h
> @@ -0,0 +1,1018 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Functions to access TPS6594 Power Management IC
> + *
> + * Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
> + */
> +
> +#ifndef __LINUX_MFD_TPS6594_H
> +#define __LINUX_MFD_TPS6594_H
> +
> +#include <linux/device.h>
> +#include <linux/regmap.h>
> +
> +struct regmap_irq_chip_data;
> +
> +/* Chip id list */
> +#define TPS6594 0
> +#define TPS6593 1
> +#define LP8764X 2

enum?

> +/* Macro to get page index from register address */
> +#define TPS6594_REG_TO_PAGE(reg) ((reg) >> 8)
> +
> +/* Registers for page 0 of TPS6594 */
> +#define TPS6594_REG_DEV_REV 0x01
> +
> +#define TPS6594_REG_NVM_CODE_1 0x02
> +#define TPS6594_REG_NVM_CODE_2 0x03
> +
> +#define TPS6594_REG_BUCKX_CTRL(buck_inst) (0x04 + ((buck_inst) << 1))
> +#define TPS6594_REG_BUCKX_CONF(buck_inst) (0x05 + ((buck_inst) << 1))
> +#define TPS6594_REG_BUCKX_VOUT_1(buck_inst) (0x0e + ((buck_inst) << 1))
> +#define TPS6594_REG_BUCKX_VOUT_2(buck_inst) (0x0f + ((buck_inst) << 1))
> +#define TPS6594_REG_BUCKX_PG_WINDOW(buck_inst) (0x18 + (buck_inst))
> +
> +#define TPS6594_REG_LDOX_CTRL(ldo_inst) (0x1d + (ldo_inst))
> +#define TPS6594_REG_LDORTC_CTRL 0x22
> +#define TPS6594_REG_LDOX_VOUT(ldo_inst) (0x23 + (ldo_inst))
> +#define TPS6594_REG_LDOX_PG_WINDOW(ldo_inst) (0x27 + (ldo_inst))
> +
> +#define TPS6594_REG_VCCA_VMON_CTRL 0x2b
> +#define TPS6594_REG_VCCA_PG_WINDOW 0x2c
> +#define TPS6594_REG_VMON1_PG_WINDOW 0x2d
> +#define TPS6594_REG_VMON1_PG_LEVEL 0x2e
> +#define TPS6594_REG_VMON2_PG_WINDOW 0x2f
> +#define TPS6594_REG_VMON2_PG_LEVEL 0x30
> +
> +#define TPS6594_REG_GPIOX_CONF(gpio_inst) (0x31 + (gpio_inst))
> +#define TPS6594_REG_NPWRON_CONF 0x3c
> +#define TPS6594_REG_GPIO_OUT_1 0x3d
> +#define TPS6594_REG_GPIO_OUT_2 0x3e
> +#define TPS6594_REG_GPIO_IN_1 0x3f
> +#define TPS6594_REG_GPIO_IN_2 0x40
> +#define TPS6594_REG_GPIOX_OUT(gpio_inst) (TPS6594_REG_GPIO_OUT_1 + (gpio_inst) / 8)
> +#define TPS6594_REG_GPIOX_IN(gpio_inst) (TPS6594_REG_GPIO_IN_1 + (gpio_inst) / 8)
> +
> +#define TPS6594_REG_GPIO_IN_1 0x3f
> +#define TPS6594_REG_GPIO_IN_2 0x40
> +
> +#define TPS6594_REG_RAIL_SEL_1 0x41
> +#define TPS6594_REG_RAIL_SEL_2 0x42
> +#define TPS6594_REG_RAIL_SEL_3 0x43
> +
> +#define TPS6594_REG_FSM_TRIG_SEL_1 0x44
> +#define TPS6594_REG_FSM_TRIG_SEL_2 0x45
> +#define TPS6594_REG_FSM_TRIG_MASK_1 0x46
> +#define TPS6594_REG_FSM_TRIG_MASK_2 0x47
> +#define TPS6594_REG_FSM_TRIG_MASK_3 0x48
> +
> +#define TPS6594_REG_MASK_BUCK1_2 0x49
> +#define TPS6594_REG_MASK_BUCK3_4 0x4a
> +#define TPS6594_REG_MASK_BUCK5 0x4b
> +#define TPS6594_REG_MASK_LDO1_2 0x4c
> +#define TPS6594_REG_MASK_LDO3_4 0x4d
> +#define TPS6594_REG_MASK_VMON 0x4e
> +#define TPS6594_REG_MASK_GPIO1_8_FALL 0x4f
> +#define TPS6594_REG_MASK_GPIO1_8_RISE 0x50
> +#define TPS6594_REG_MASK_GPIO9_11 0x51
> +#define TPS6594_REG_MASK_STARTUP 0x52
> +#define TPS6594_REG_MASK_MISC 0x53
> +#define TPS6594_REG_MASK_MODERATE_ERR 0x54
> +#define TPS6594_REG_MASK_FSM_ERR 0x56
> +#define TPS6594_REG_MASK_COMM_ERR 0x57
> +#define TPS6594_REG_MASK_READBACK_ERR 0x58
> +#define TPS6594_REG_MASK_ESM 0x59
> +
> +#define TPS6594_REG_INT_TOP 0x5a
> +#define TPS6594_REG_INT_BUCK 0x5b
> +#define TPS6594_REG_INT_BUCK1_2 0x5c
> +#define TPS6594_REG_INT_BUCK3_4 0x5d
> +#define TPS6594_REG_INT_BUCK5 0x5e
> +#define TPS6594_REG_INT_LDO_VMON 0x5f
> +#define TPS6594_REG_INT_LDO1_2 0x60
> +#define TPS6594_REG_INT_LDO3_4 0x61
> +#define TPS6594_REG_INT_VMON 0x62
> +#define TPS6594_REG_INT_GPIO 0x63
> +#define TPS6594_REG_INT_GPIO1_8 0x64
> +#define TPS6594_REG_INT_STARTUP 0x65
> +#define TPS6594_REG_INT_MISC 0x66
> +#define TPS6594_REG_INT_MODERATE_ERR 0x67
> +#define TPS6594_REG_INT_SEVERE_ERR 0x68
> +#define TPS6594_REG_INT_FSM_ERR 0x69
> +#define TPS6594_REG_INT_COMM_ERR 0x6a
> +#define TPS6594_REG_INT_READBACK_ERR 0x6b
> +#define TPS6594_REG_INT_ESM 0x6c
> +
> +#define TPS6594_REG_STAT_BUCK1_2 0x6d
> +#define TPS6594_REG_STAT_BUCK3_4 0x6e
> +#define TPS6594_REG_STAT_BUCK5 0x6f
> +#define TPS6594_REG_STAT_LDO1_2 0x70
> +#define TPS6594_REG_STAT_LDO3_4 0x71
> +#define TPS6594_REG_STAT_VMON 0x72
> +#define TPS6594_REG_STAT_STARTUP 0x73
> +#define TPS6594_REG_STAT_MISC 0x74
> +#define TPS6594_REG_STAT_MODERATE_ERR 0x75
> +#define TPS6594_REG_STAT_SEVERE_ERR 0x76
> +#define TPS6594_REG_STAT_READBACK_ERR 0x77
> +
> +#define TPS6594_REG_PGOOD_SEL_1 0x78
> +#define TPS6594_REG_PGOOD_SEL_2 0x79
> +#define TPS6594_REG_PGOOD_SEL_3 0x7a
> +#define TPS6594_REG_PGOOD_SEL_4 0x7b
> +
> +#define TPS6594_REG_PLL_CTRL 0x7c
> +
> +#define TPS6594_REG_CONFIG_1 0x7d
> +#define TPS6594_REG_CONFIG_2 0x7e
> +
> +#define TPS6594_REG_ENABLE_DRV_REG 0x80
> +
> +#define TPS6594_REG_MISC_CTRL 0x81
> +
> +#define TPS6594_REG_ENABLE_DRV_STAT 0x82
> +
> +#define TPS6594_REG_RECOV_CNT_REG_1 0x83
> +#define TPS6594_REG_RECOV_CNT_REG_2 0x84
> +
> +#define TPS6594_REG_FSM_I2C_TRIGGERS 0x85
> +#define TPS6594_REG_FSM_NSLEEP_TRIGGERS 0x86
> +
> +#define TPS6594_REG_BUCK_RESET_REG 0x87
> +
> +#define TPS6594_REG_SPREAD_SPECTRUM_1 0x88
> +
> +#define TPS6594_REG_FREQ_SEL 0x8a
> +
> +#define TPS6594_REG_FSM_STEP_SIZE 0x8b
> +
> +#define TPS6594_REG_LDO_RV_TIMEOUT_REG_1 0x8c
> +#define TPS6594_REG_LDO_RV_TIMEOUT_REG_2 0x8d
> +
> +#define TPS6594_REG_USER_SPARE_REGS 0x8e
> +
> +#define TPS6594_REG_ESM_MCU_START_REG 0x8f
> +#define TPS6594_REG_ESM_MCU_DELAY1_REG 0x90
> +#define TPS6594_REG_ESM_MCU_DELAY2_REG 0x91
> +#define TPS6594_REG_ESM_MCU_MODE_CFG 0x92
> +#define TPS6594_REG_ESM_MCU_HMAX_REG 0x93
> +#define TPS6594_REG_ESM_MCU_HMIN_REG 0x94
> +#define TPS6594_REG_ESM_MCU_LMAX_REG 0x95
> +#define TPS6594_REG_ESM_MCU_LMIN_REG 0x96
> +#define TPS6594_REG_ESM_MCU_ERR_CNT_REG 0x97
> +#define TPS6594_REG_ESM_SOC_START_REG 0x98
> +#define TPS6594_REG_ESM_SOC_DELAY1_REG 0x99
> +#define TPS6594_REG_ESM_SOC_DELAY2_REG 0x9a
> +#define TPS6594_REG_ESM_SOC_MODE_CFG 0x9b
> +#define TPS6594_REG_ESM_SOC_HMAX_REG 0x9c
> +#define TPS6594_REG_ESM_SOC_HMIN_REG 0x9d
> +#define TPS6594_REG_ESM_SOC_LMAX_REG 0x9e
> +#define TPS6594_REG_ESM_SOC_LMIN_REG 0x9f
> +#define TPS6594_REG_ESM_SOC_ERR_CNT_REG 0xa0
> +
> +#define TPS6594_REG_REGISTER_LOCK 0xa1
> +
> +#define TPS6594_REG_MANUFACTURING_VER 0xa6
> +
> +#define TPS6594_REG_CUSTOMER_NVM_ID_REG 0xa7
> +
> +#define TPS6594_REG_VMON_CONF_REG 0xa8
> +
> +#define TPS6594_REG_SOFT_REBOOT_REG 0xab
> +
> +#define TPS6594_REG_RTC_SECONDS 0xb5
> +#define TPS6594_REG_RTC_MINUTES 0xb6
> +#define TPS6594_REG_RTC_HOURS 0xb7
> +#define TPS6594_REG_RTC_DAYS 0xb8
> +#define TPS6594_REG_RTC_MONTHS 0xb9
> +#define TPS6594_REG_RTC_YEARS 0xba
> +#define TPS6594_REG_RTC_WEEKS 0xbb
> +
> +#define TPS6594_REG_ALARM_SECONDS 0xbc
> +#define TPS6594_REG_ALARM_MINUTES 0xbd
> +#define TPS6594_REG_ALARM_HOURS 0xbe
> +#define TPS6594_REG_ALARM_DAYS 0xbf
> +#define TPS6594_REG_ALARM_MONTHS 0xc0
> +#define TPS6594_REG_ALARM_YEARS 0xc1
> +
> +#define TPS6594_REG_RTC_CTRL_1 0xc2
> +#define TPS6594_REG_RTC_CTRL_2 0xc3
> +#define TPS6594_REG_RTC_STATUS 0xc4
> +#define TPS6594_REG_RTC_INTERRUPTS 0xc5
> +#define TPS6594_REG_RTC_COMP_LSB 0xc6
> +#define TPS6594_REG_RTC_COMP_MSB 0xc7
> +#define TPS6594_REG_RTC_RESET_STATUS 0xc8
> +
> +#define TPS6594_REG_SCRATCH_PAD_REG_1 0xc9
> +#define TPS6594_REG_SCRATCH_PAD_REG_2 0xca
> +#define TPS6594_REG_SCRATCH_PAD_REG_3 0xcb
> +#define TPS6594_REG_SCRATCH_PAD_REG_4 0xcc
> +
> +#define TPS6594_REG_PFSM_DELAY_REG_1 0xcd
> +#define TPS6594_REG_PFSM_DELAY_REG_2 0xce
> +#define TPS6594_REG_PFSM_DELAY_REG_3 0xcf
> +#define TPS6594_REG_PFSM_DELAY_REG_4 0xd0
> +
> +/* Registers for page 1 of TPS6594 */
> +#define TPS6594_REG_SERIAL_IF_CONFIG 0x11a
> +#define TPS6594_REG_I2C1_ID 0x122
> +#define TPS6594_REG_I2C2_ID 0x123
> +
> +/* Registers for page 4 of TPS6594 */
> +#define TPS6594_REG_WD_ANSWER_REG 0x401
> +#define TPS6594_REG_WD_QUESTION_ANSW_CNT 0x402
> +#define TPS6594_REG_WD_WIN1_CFG 0x403
> +#define TPS6594_REG_WD_WIN2_CFG 0x404
> +#define TPS6594_REG_WD_LONGWIN_CFG 0x405
> +#define TPS6594_REG_WD_MODE_REG 0x406
> +#define TPS6594_REG_WD_QA_CFG 0x407
> +#define TPS6594_REG_WD_ERR_STATUS 0x408
> +#define TPS6594_REG_WD_THR_CFG 0x409
> +#define TPS6594_REG_DWD_FAIL_CNT_REG 0x40a
> +
> +/* BUCKX_CTRL register field definition */
> +#define TPS6594_BIT_BUCK_EN BIT(0)
> +#define TPS6594_BIT_BUCK_FPWM BIT(1)
> +#define TPS6594_BIT_BUCK_FPWM_MP BIT(2)
> +#define TPS6594_BIT_BUCK_VSEL BIT(3)
> +#define TPS6594_BIT_BUCK_VMON_EN BIT(4)
> +#define TPS6594_BIT_BUCK_PLDN BIT(5)
> +#define TPS6594_BIT_BUCK_RV_SEL BIT(7)
> +
> +/* BUCKX_CONF register field definition */
> +#define TPS6594_MASK_BUCK_SLEW_RATE GENMASK(2, 0)
> +#define TPS6594_MASK_BUCK_ILIM GENMASK(5, 3)
> +
> +/* BUCKX_PG_WINDOW register field definition */
> +#define TPS6594_MASK_BUCK_OV_THR GENMASK(2, 0)
> +#define TPS6594_MASK_BUCK_UV_THR GENMASK(5, 3)
> +
> +/* BUCKX VSET */
> +#define TPS6594_MASK_BUCKS_VSET GENMASK(7, 0)
> +
> +/* LDOX_CTRL register field definition */
> +#define TPS6594_BIT_LDO_EN BIT(0)
> +#define TPS6594_BIT_LDO_SLOW_RAMP BIT(1)
> +#define TPS6594_BIT_LDO_VMON_EN BIT(4)
> +#define TPS6594_MASK_LDO_PLDN GENMASK(6, 5)
> +#define TPS6594_BIT_LDO_RV_SEL BIT(7)
> +
> +/* LDORTC_CTRL register field definition */
> +#define TPS6594_BIT_LDORTC_DIS BIT(0)
> +
> +/* LDOX_VOUT register field definition */
> +#define TPS6594_MASK_LDO123_VSET GENMASK(6, 1)
> +#define TPS6594_MASK_LDO4_VSET GENMASK(6, 0)
> +#define TPS6594_BIT_LDO_BYPASS BIT(7)
> +
> +/* LDOX_PG_WINDOW register field definition */
> +#define TPS6594_MASK_LDO_OV_THR GENMASK(2, 0)
> +#define TPS6594_MASK_LDO_UV_THR GENMASK(5, 3)
> +
> +/* VCCA_VMON_CTRL register field definition */
> +#define TPS6594_BIT_VMON_EN BIT(0)
> +#define TPS6594_BIT_VMON1_EN BIT(1)
> +#define TPS6594_BIT_VMON1_RV_SEL BIT(2)
> +#define TPS6594_BIT_VMON2_EN BIT(3)
> +#define TPS6594_BIT_VMON2_RV_SEL BIT(4)
> +#define TPS6594_BIT_VMON_DEGLITCH_SEL BIT(5)
> +
> +/* VCCA_PG_WINDOW register field definition */
> +#define TPS6594_MASK_VCCA_OV_THR GENMASK(2, 0)
> +#define TPS6594_MASK_VCCA_UV_THR GENMASK(5, 3)
> +#define TPS6594_BIT_VCCA_PG_SET BIT(6)
> +
> +/* VMONX_PG_WINDOW register field definition */
> +#define TPS6594_MASK_VMONX_OV_THR GENMASK(2, 0)
> +#define TPS6594_MASK_VMONX_UV_THR GENMASK(5, 3)
> +#define TPS6594_BIT_VMONX_RANGE BIT(6)
> +
> +/* GPIOX_CONF register field definition */
> +#define TPS6594_BIT_GPIO_DIR BIT(0)
> +#define TPS6594_BIT_GPIO_OD BIT(1)
> +#define TPS6594_BIT_GPIO_PU_SEL BIT(2)
> +#define TPS6594_BIT_GPIO_PU_PD_EN BIT(3)
> +#define TPS6594_BIT_GPIO_DEGLITCH_EN BIT(4)
> +#define TPS6594_MASK_GPIO_SEL GENMASK(7, 5)
> +
> +/* NPWRON_CONF register field definition */
> +#define TPS6594_BIT_NRSTOUT_OD BIT(0)
> +#define TPS6594_BIT_ENABLE_PU_SEL BIT(2)
> +#define TPS6594_BIT_ENABLE_PU_PD_EN BIT(3)
> +#define TPS6594_BIT_ENABLE_DEGLITCH_EN BIT(4)
> +#define TPS6594_BIT_ENABLE_POL BIT(5)
> +#define TPS6594_MASK_NPWRON_SEL GENMASK(7, 6)
> +
> +/* GPIO_OUT_X register field definition */
> +#define TPS6594_BIT_GPIOX_OUT(gpio_inst) BIT((gpio_inst) % 8)
> +
> +/* GPIO_IN_X register field definition */
> +#define TPS6594_BIT_GPIOX_IN(gpio_inst) BIT((gpio_inst) % 8)
> +#define TPS6594_BIT_NPWRON_IN BIT(3)
> +
> +/* RAIL_SEL_1 register field definition */
> +#define TPS6594_MASK_BUCK1_GRP_SEL GENMASK(1, 0)
> +#define TPS6594_MASK_BUCK2_GRP_SEL GENMASK(3, 2)
> +#define TPS6594_MASK_BUCK3_GRP_SEL GENMASK(5, 4)
> +#define TPS6594_MASK_BUCK4_GRP_SEL GENMASK(7, 6)
> +
> +/* RAIL_SEL_2 register field definition */
> +#define TPS6594_MASK_BUCK5_GRP_SEL GENMASK(1, 0)
> +#define TPS6594_MASK_LDO1_GRP_SEL GENMASK(3, 2)
> +#define TPS6594_MASK_LDO2_GRP_SEL GENMASK(5, 4)
> +#define TPS6594_MASK_LDO3_GRP_SEL GENMASK(7, 6)
> +
> +/* RAIL_SEL_3 register field definition */
> +#define TPS6594_MASK_LDO4_GRP_SEL GENMASK(1, 0)
> +#define TPS6594_MASK_VCCA_GRP_SEL GENMASK(3, 2)
> +#define TPS6594_MASK_VMON1_GRP_SEL GENMASK(5, 4)
> +#define TPS6594_MASK_VMON2_GRP_SEL GENMASK(7, 6)
> +
> +/* FSM_TRIG_SEL_1 register field definition */
> +#define TPS6594_MASK_MCU_RAIL_TRIG GENMASK(1, 0)
> +#define TPS6594_MASK_SOC_RAIL_TRIG GENMASK(3, 2)
> +#define TPS6594_MASK_OTHER_RAIL_TRIG GENMASK(5, 4)
> +#define TPS6594_MASK_SEVERE_ERR_TRIG GENMASK(7, 6)
> +
> +/* FSM_TRIG_SEL_2 register field definition */
> +#define TPS6594_MASK_MODERATE_ERR_TRIG GENMASK(1, 0)
> +
> +/* FSM_TRIG_MASK_X register field definition */
> +#define TPS6594_BIT_GPIOX_FSM_MASK(gpio_inst) BIT(((gpio_inst) << 1) % 8)
> +#define TPS6594_BIT_GPIOX_FSM_MASK_POL(gpio_inst) BIT(((gpio_inst) << 1) % 8 + 1)
> +
> +/* MASK_BUCKX register field definition */
> +#define TPS6594_BIT_BUCKX_OV_MASK(buck_inst) BIT(((buck_inst) << 2) % 8)
> +#define TPS6594_BIT_BUCKX_UV_MASK(buck_inst) BIT(((buck_inst) << 2) % 8 + 1)
> +#define TPS6594_BIT_BUCKX_ILIM_MASK(buck_inst) BIT(((buck_inst) << 2) % 8 + 3)
> +
> +/* MASK_LDOX register field definition */
> +#define TPS6594_BIT_LDOX_OV_MASK(ldo_inst) BIT(((ldo_inst) << 2) % 8)
> +#define TPS6594_BIT_LDOX_UV_MASK(ldo_inst) BIT(((ldo_inst) << 2) % 8 + 1)
> +#define TPS6594_BIT_LDOX_ILIM_MASK(ldo_inst) BIT(((ldo_inst) << 2) % 8 + 3)
> +
> +/* MASK_VMON register field definition */
> +#define TPS6594_BIT_VCCA_OV_MASK BIT(0)
> +#define TPS6594_BIT_VCCA_UV_MASK BIT(1)
> +#define TPS6594_BIT_VMON1_OV_MASK BIT(2)
> +#define TPS6594_BIT_VMON1_UV_MASK BIT(3)
> +#define TPS6594_BIT_VMON2_OV_MASK BIT(5)
> +#define TPS6594_BIT_VMON2_UV_MASK BIT(6)
> +
> +/* MASK_GPIOX register field definition */
> +#define TPS6594_BIT_GPIOX_FALL_MASK(gpio_inst) BIT((gpio_inst) < 8 ? \
> + (gpio_inst) : (gpio_inst) % 8)
> +#define TPS6594_BIT_GPIOX_RISE_MASK(gpio_inst) BIT((gpio_inst) < 8 ? \
> + (gpio_inst) : (gpio_inst) % 8 + 3)
> +
> +/* MASK_STARTUP register field definition */
> +#define TPS6594_BIT_NPWRON_START_MASK BIT(0)
> +#define TPS6594_BIT_ENABLE_MASK BIT(1)
> +#define TPS6594_BIT_FSD_MASK BIT(4)
> +#define TPS6594_BIT_SOFT_REBOOT_MASK BIT(5)
> +
> +/* MASK_MISC register field definition */
> +#define TPS6594_BIT_BIST_PASS_MASK BIT(0)
> +#define TPS6594_BIT_EXT_CLK_MASK BIT(1)
> +#define TPS6594_BIT_TWARN_MASK BIT(3)
> +
> +/* MASK_MODERATE_ERR register field definition */
> +#define TPS6594_BIT_BIST_FAIL_MASK BIT(1)
> +#define TPS6594_BIT_REG_CRC_ERR_MASK BIT(2)
> +#define TPS6594_BIT_SPMI_ERR_MASK BIT(4)
> +#define TPS6594_BIT_NPWRON_LONG_MASK BIT(5)
> +#define TPS6594_BIT_NINT_READBACK_MASK BIT(6)
> +#define TPS6594_BIT_NRSTOUT_READBACK_MASK BIT(7)
> +
> +/* MASK_FSM_ERR register field definition */
> +#define TPS6594_BIT_IMM_SHUTDOWN_MASK BIT(0)
> +#define TPS6594_BIT_ORD_SHUTDOWN_MASK BIT(1)
> +#define TPS6594_BIT_MCU_PWR_ERR_MASK BIT(2)
> +#define TPS6594_BIT_SOC_PWR_ERR_MASK BIT(3)
> +
> +/* MASK_COMM_ERR register field definition */
> +#define TPS6594_BIT_COMM_FRM_ERR_MASK BIT(0)
> +#define TPS6594_BIT_COMM_CRC_ERR_MASK BIT(1)
> +#define TPS6594_BIT_COMM_ADR_ERR_MASK BIT(3)
> +#define TPS6594_BIT_I2C2_CRC_ERR_MASK BIT(5)
> +#define TPS6594_BIT_I2C2_ADR_ERR_MASK BIT(7)
> +
> +/* MASK_READBACK_ERR register field definition */
> +#define TPS6594_BIT_EN_DRV_READBACK_MASK BIT(0)
> +#define TPS6594_BIT_NRSTOUT_SOC_READBACK_MASK BIT(3)
> +
> +/* MASK_ESM register field definition */
> +#define TPS6594_BIT_ESM_SOC_PIN_MASK BIT(0)
> +#define TPS6594_BIT_ESM_SOC_FAIL_MASK BIT(1)
> +#define TPS6594_BIT_ESM_SOC_RST_MASK BIT(2)
> +#define TPS6594_BIT_ESM_MCU_PIN_MASK BIT(3)
> +#define TPS6594_BIT_ESM_MCU_FAIL_MASK BIT(4)
> +#define TPS6594_BIT_ESM_MCU_RST_MASK BIT(5)
> +
> +/* INT_TOP register field definition */
> +#define TPS6594_BIT_BUCK_INT BIT(0)
> +#define TPS6594_BIT_LDO_VMON_INT BIT(1)
> +#define TPS6594_BIT_GPIO_INT BIT(2)
> +#define TPS6594_BIT_STARTUP_INT BIT(3)
> +#define TPS6594_BIT_MISC_INT BIT(4)
> +#define TPS6594_BIT_MODERATE_ERR_INT BIT(5)
> +#define TPS6594_BIT_SEVERE_ERR_INT BIT(6)
> +#define TPS6594_BIT_FSM_ERR_INT BIT(7)
> +
> +/* INT_BUCK register field definition */
> +#define TPS6594_BIT_BUCK1_2_INT BIT(0)
> +#define TPS6594_BIT_BUCK3_4_INT BIT(1)
> +#define TPS6594_BIT_BUCK5_INT BIT(2)
> +
> +/* INT_BUCKX register field definition */
> +#define TPS6594_BIT_BUCKX_OV_INT(buck_inst) BIT(((buck_inst) << 2) % 8)
> +#define TPS6594_BIT_BUCKX_UV_INT(buck_inst) BIT(((buck_inst) << 2) % 8 + 1)
> +#define TPS6594_BIT_BUCKX_SC_INT(buck_inst) BIT(((buck_inst) << 2) % 8 + 2)
> +#define TPS6594_BIT_BUCKX_ILIM_INT(buck_inst) BIT(((buck_inst) << 2) % 8 + 3)
> +
> +/* INT_LDO_VMON register field definition */
> +#define TPS6594_BIT_LDO1_2_INT BIT(0)
> +#define TPS6594_BIT_LDO3_4_INT BIT(1)
> +#define TPS6594_BIT_VCCA_INT BIT(4)
> +
> +/* INT_LDOX register field definition */
> +#define TPS6594_BIT_LDOX_OV_INT(ldo_inst) BIT(((ldo_inst) << 2) % 8)
> +#define TPS6594_BIT_LDOX_UV_INT(ldo_inst) BIT(((ldo_inst) << 2) % 8 + 1)
> +#define TPS6594_BIT_LDOX_SC_INT(ldo_inst) BIT(((ldo_inst) << 2) % 8 + 2)
> +#define TPS6594_BIT_LDOX_ILIM_INT(ldo_inst) BIT(((ldo_inst) << 2) % 8 + 3)
> +
> +/* INT_VMON register field definition */
> +#define TPS6594_BIT_VCCA_OV_INT BIT(0)
> +#define TPS6594_BIT_VCCA_UV_INT BIT(1)
> +#define TPS6594_BIT_VMON1_OV_INT BIT(2)
> +#define TPS6594_BIT_VMON1_UV_INT BIT(3)
> +#define TPS6594_BIT_VMON1_RV_INT BIT(4)
> +#define TPS6594_BIT_VMON2_OV_INT BIT(5)
> +#define TPS6594_BIT_VMON2_UV_INT BIT(6)
> +#define TPS6594_BIT_VMON2_RV_INT BIT(7)
> +
> +/* INT_GPIO register field definition */
> +#define TPS6594_BIT_GPIO9_INT BIT(0)
> +#define TPS6594_BIT_GPIO10_INT BIT(1)
> +#define TPS6594_BIT_GPIO11_INT BIT(2)
> +#define TPS6594_BIT_GPIO1_8_INT BIT(3)
> +
> +/* INT_GPIOX register field definition */
> +#define TPS6594_BIT_GPIOX_INT(gpio_inst) BIT(gpio_inst)
> +
> +/* INT_STARTUP register field definition */
> +#define TPS6594_BIT_NPWRON_START_INT BIT(0)
> +#define TPS6594_BIT_ENABLE_INT BIT(1)
> +#define TPS6594_BIT_RTC_INT BIT(2)
> +#define TPS6594_BIT_FSD_INT BIT(4)
> +#define TPS6594_BIT_SOFT_REBOOT_INT BIT(5)
> +
> +/* INT_MISC register field definition */
> +#define TPS6594_BIT_BIST_PASS_INT BIT(0)
> +#define TPS6594_BIT_EXT_CLK_INT BIT(1)
> +#define TPS6594_BIT_TWARN_INT BIT(3)
> +
> +/* INT_MODERATE_ERR register field definition */
> +#define TPS6594_BIT_TSD_ORD_INT BIT(0)
> +#define TPS6594_BIT_BIST_FAIL_INT BIT(1)
> +#define TPS6594_BIT_REG_CRC_ERR_INT BIT(2)
> +#define TPS6594_BIT_RECOV_CNT_INT BIT(3)
> +#define TPS6594_BIT_SPMI_ERR_INT BIT(4)
> +#define TPS6594_BIT_NPWRON_LONG_INT BIT(5)
> +#define TPS6594_BIT_NINT_READBACK_INT BIT(6)
> +#define TPS6594_BIT_NRSTOUT_READBACK_INT BIT(7)
> +
> +/* INT_SEVERE_ERR register field definition */
> +#define TPS6594_BIT_TSD_IMM_INT BIT(0)
> +#define TPS6594_BIT_VCCA_OVP_INT BIT(1)
> +#define TPS6594_BIT_PFSM_ERR_INT BIT(2)
> +
> +/* INT_FSM_ERR register field definition */
> +#define TPS6594_BIT_IMM_SHUTDOWN_INT BIT(0)
> +#define TPS6594_BIT_ORD_SHUTDOWN_INT BIT(1)
> +#define TPS6594_BIT_MCU_PWR_ERR_INT BIT(2)
> +#define TPS6594_BIT_SOC_PWR_ERR_INT BIT(3)
> +#define TPS6594_BIT_COMM_ERR_INT BIT(4)
> +#define TPS6594_BIT_READBACK_ERR_INT BIT(5)
> +#define TPS6594_BIT_ESM_INT BIT(6)
> +#define TPS6594_BIT_WD_INT BIT(7)
> +
> +/* INT_COMM_ERR register field definition */
> +#define TPS6594_BIT_COMM_FRM_ERR_INT BIT(0)
> +#define TPS6594_BIT_COMM_CRC_ERR_INT BIT(1)
> +#define TPS6594_BIT_COMM_ADR_ERR_INT BIT(3)
> +#define TPS6594_BIT_I2C2_CRC_ERR_INT BIT(5)
> +#define TPS6594_BIT_I2C2_ADR_ERR_INT BIT(7)
> +
> +/* INT_READBACK_ERR register field definition */
> +#define TPS6594_BIT_EN_DRV_READBACK_INT BIT(0)
> +#define TPS6594_BIT_NRSTOUT_SOC_READBACK_INT BIT(3)
> +
> +/* INT_ESM register field definition */
> +#define TPS6594_BIT_ESM_SOC_PIN_INT BIT(0)
> +#define TPS6594_BIT_ESM_SOC_FAIL_INT BIT(1)
> +#define TPS6594_BIT_ESM_SOC_RST_INT BIT(2)
> +#define TPS6594_BIT_ESM_MCU_PIN_INT BIT(3)
> +#define TPS6594_BIT_ESM_MCU_FAIL_INT BIT(4)
> +#define TPS6594_BIT_ESM_MCU_RST_INT BIT(5)
> +
> +/* STAT_BUCKX register field definition */
> +#define TPS6594_BIT_BUCKX_OV_STAT(buck_inst) BIT(((buck_inst) << 2) % 8)
> +#define TPS6594_BIT_BUCKX_UV_STAT(buck_inst) BIT(((buck_inst) << 2) % 8 + 1)
> +#define TPS6594_BIT_BUCKX_ILIM_STAT(buck_inst) BIT(((buck_inst) << 2) % 8 + 3)
> +
> +/* STAT_LDOX register field definition */
> +#define TPS6594_BIT_LDOX_OV_STAT(ldo_inst) BIT(((ldo_inst) << 2) % 8)
> +#define TPS6594_BIT_LDOX_UV_STAT(ldo_inst) BIT(((ldo_inst) << 2) % 8 + 1)
> +#define TPS6594_BIT_LDOX_ILIM_STAT(ldo_inst) BIT(((ldo_inst) << 2) % 8 + 3)
> +
> +/* STAT_VMON register field definition */
> +#define TPS6594_BIT_VCCA_OV_STAT BIT(0)
> +#define TPS6594_BIT_VCCA_UV_STAT BIT(1)
> +#define TPS6594_BIT_VMON1_OV_STAT BIT(2)
> +#define TPS6594_BIT_VMON1_UV_STAT BIT(3)
> +#define TPS6594_BIT_VMON2_OV_STAT BIT(5)
> +#define TPS6594_BIT_VMON2_UV_STAT BIT(6)
> +
> +/* STAT_STARTUP register field definition */
> +#define TPS6594_BIT_ENABLE_STAT BIT(1)
> +
> +/* STAT_MISC register field definition */
> +#define TPS6594_BIT_EXT_CLK_STAT BIT(1)
> +#define TPS6594_BIT_TWARN_STAT BIT(3)
> +
> +/* STAT_MODERATE_ERR register field definition */
> +#define TPS6594_BIT_TSD_ORD_STAT BIT(0)
> +
> +/* STAT_SEVERE_ERR register field definition */
> +#define TPS6594_BIT_TSD_IMM_STAT BIT(0)
> +#define TPS6594_BIT_VCCA_OVP_STAT BIT(1)
> +
> +/* STAT_READBACK_ERR register field definition */
> +#define TPS6594_BIT_EN_DRV_READBACK_STAT BIT(0)
> +#define TPS6594_BIT_NINT_READBACK_STAT BIT(1)
> +#define TPS6594_BIT_NRSTOUT_READBACK_STAT BIT(2)
> +#define TPS6594_BIT_NRSTOUT_SOC_READBACK_STAT BIT(3)
> +
> +/* PGOOD_SEL_1 register field definition */
> +#define TPS6594_MASK_PGOOD_SEL_BUCK1 GENMASK(1, 0)
> +#define TPS6594_MASK_PGOOD_SEL_BUCK2 GENMASK(3, 2)
> +#define TPS6594_MASK_PGOOD_SEL_BUCK3 GENMASK(5, 4)
> +#define TPS6594_MASK_PGOOD_SEL_BUCK4 GENMASK(7, 6)
> +
> +/* PGOOD_SEL_2 register field definition */
> +#define TPS6594_MASK_PGOOD_SEL_BUCK5 GENMASK(1, 0)
> +
> +/* PGOOD_SEL_3 register field definition */
> +#define TPS6594_MASK_PGOOD_SEL_LDO1 GENMASK(1, 0)
> +#define TPS6594_MASK_PGOOD_SEL_LDO2 GENMASK(3, 2)
> +#define TPS6594_MASK_PGOOD_SEL_LDO3 GENMASK(5, 4)
> +#define TPS6594_MASK_PGOOD_SEL_LDO4 GENMASK(7, 6)
> +
> +/* PGOOD_SEL_4 register field definition */
> +#define TPS6594_BIT_PGOOD_SEL_VCCA BIT(0)
> +#define TPS6594_BIT_PGOOD_SEL_VMON1 BIT(1)
> +#define TPS6594_BIT_PGOOD_SEL_VMON2 BIT(2)
> +#define TPS6594_BIT_PGOOD_SEL_TDIE_WARN BIT(3)
> +#define TPS6594_BIT_PGOOD_SEL_NRSTOUT BIT(4)
> +#define TPS6594_BIT_PGOOD_SEL_NRSTOUT_SOC BIT(5)
> +#define TPS6594_BIT_PGOOD_POL BIT(6)
> +#define TPS6594_BIT_PGOOD_WINDOW BIT(7)
> +
> +/* PLL_CTRL register field definition */
> +#define TPS6594_MASK_EXT_CLK_FREQ GENMASK(1, 0)
> +
> +/* CONFIG_1 register field definition */
> +#define TPS6594_BIT_TWARN_LEVEL BIT(0)
> +#define TPS6594_BIT_TSD_ORD_LEVEL BIT(1)
> +#define TPS6594_BIT_I2C1_HS BIT(3)
> +#define TPS6594_BIT_I2C2_HS BIT(4)
> +#define TPS6594_BIT_EN_ILIM_FSM_CTRL BIT(5)
> +#define TPS6594_BIT_NSLEEP1_MASK BIT(6)
> +#define TPS6594_BIT_NSLEEP2_MASK BIT(7)
> +
> +/* CONFIG_2 register field definition */
> +#define TPS6594_BIT_BB_CHARGER_EN BIT(0)
> +#define TPS6594_BIT_BB_ICHR BIT(1)
> +#define TPS6594_MASK_BB_VEOC GENMASK(3, 2)
> +#define TPS6594_BB_EOC_RDY BIT(7)
> +
> +/* ENABLE_DRV_REG register field definition */
> +#define TPS6594_BIT_ENABLE_DRV BIT(0)
> +
> +/* MISC_CTRL register field definition */
> +#define TPS6594_BIT_NRSTOUT BIT(0)
> +#define TPS6594_BIT_NRSTOUT_SOC BIT(1)
> +#define TPS6594_BIT_LPM_EN BIT(2)
> +#define TPS6594_BIT_CLKMON_EN BIT(3)
> +#define TPS6594_BIT_AMUXOUT_EN BIT(4)
> +#define TPS6594_BIT_SEL_EXT_CLK BIT(5)
> +#define TPS6594_MASK_SYNCCLKOUT_FREQ_SEL GENMASK(7, 6)
> +
> +/* ENABLE_DRV_STAT register field definition */
> +#define TPS6594_BIT_EN_DRV_IN BIT(0)
> +#define TPS6594_BIT_NRSTOUT_IN BIT(1)
> +#define TPS6594_BIT_NRSTOUT_SOC_IN BIT(2)
> +#define TPS6594_BIT_FORCE_EN_DRV_LOW BIT(3)
> +#define TPS6594_BIT_SPMI_LPM_EN BIT(4)
> +
> +/* RECOV_CNT_REG_1 register field definition */
> +#define TPS6594_MASK_RECOV_CNT GENMASK(3, 0)
> +
> +/* RECOV_CNT_REG_2 register field definition */
> +#define TPS6594_MASK_RECOV_CNT_THR GENMASK(3, 0)
> +#define TPS6594_BIT_RECOV_CNT_CLR BIT(4)
> +
> +/* FSM_I2C_TRIGGERS register field definition */
> +#define TPS6594_BIT_TRIGGER_I2C(bit) BIT(bit)
> +
> +/* FSM_NSLEEP_TRIGGERS register field definition */
> +#define TPS6594_BIT_NSLEEP1B BIT(0)
> +#define TPS6594_BIT_NSLEEP2B BIT(1)
> +
> +/* BUCK_RESET_REG register field definition */
> +#define TPS6594_BIT_BUCKX_RESET(buck_inst) BIT(buck_inst)
> +
> +/* SPREAD_SPECTRUM_1 register field definition */
> +#define TPS6594_MASK_SS_DEPTH GENMASK(1, 0)
> +#define TPS6594_BIT_SS_EN BIT(2)
> +
> +/* FREQ_SEL register field definition */
> +#define TPS6594_BIT_BUCKX_FREQ_SEL(buck_inst) BIT(buck_inst)
> +
> +/* FSM_STEP_SIZE register field definition */
> +#define TPS6594_MASK_PFSM_DELAY_STEP GENMASK(4, 0)
> +
> +/* LDO_RV_TIMEOUT_REG_1 register field definition */
> +#define TPS6594_MASK_LDO1_RV_TIMEOUT GENMASK(3, 0)
> +#define TPS6594_MASK_LDO2_RV_TIMEOUT GENMASK(7, 4)
> +
> +/* LDO_RV_TIMEOUT_REG_2 register field definition */
> +#define TPS6594_MASK_LDO3_RV_TIMEOUT GENMASK(3, 0)
> +#define TPS6594_MASK_LDO4_RV_TIMEOUT GENMASK(7, 4)
> +
> +/* USER_SPARE_REGS register field definition */
> +#define TPS6594_BIT_USER_SPARE(bit) BIT(bit)
> +
> +/* ESM_MCU_START_REG register field definition */
> +#define TPS6594_BIT_ESM_MCU_START BIT(0)
> +
> +/* ESM_MCU_MODE_CFG register field definition */
> +#define TPS6594_MASK_ESM_MCU_ERR_CNT_TH GENMASK(3, 0)
> +#define TPS6594_BIT_ESM_MCU_ENDRV BIT(5)
> +#define TPS6594_BIT_ESM_MCU_EN BIT(6)
> +#define TPS6594_BIT_ESM_MCU_MODE BIT(7)
> +
> +/* ESM_MCU_ERR_CNT_REG register field definition */
> +#define TPS6594_MASK_ESM_MCU_ERR_CNT GENMASK(4, 0)
> +
> +/* ESM_SOC_START_REG register field definition */
> +#define TPS6594_BIT_ESM_SOC_START BIT(0)
> +
> +/* ESM_SOC_MODE_CFG register field definition */
> +#define TPS6594_MASK_ESM_SOC_ERR_CNT_TH GENMASK(3, 0)
> +#define TPS6594_BIT_ESM_SOC_ENDRV BIT(5)
> +#define TPS6594_BIT_ESM_SOC_EN BIT(6)
> +#define TPS6594_BIT_ESM_SOC_MODE BIT(7)
> +
> +/* ESM_SOC_ERR_CNT_REG register field definition */
> +#define TPS6594_MASK_ESM_SOC_ERR_CNT GENMASK(4, 0)
> +
> +/* REGISTER_LOCK register field definition */
> +#define TPS6594_BIT_REGISTER_LOCK_STATUS BIT(0)
> +
> +/* VMON_CONF register field definition */
> +#define TPS6594_MASK_VMON1_SLEW_RATE GENMASK(2, 0)
> +#define TPS6594_MASK_VMON2_SLEW_RATE GENMASK(5, 3)
> +
> +/* SOFT_REBOOT_REG register field definition */
> +#define TPS6594_BIT_SOFT_REBOOT BIT(0)
> +
> +/* RTC_SECONDS & ALARM_SECONDS register field definition */
> +#define TPS6594_MASK_SECOND_0 GENMASK(3, 0)
> +#define TPS6594_MASK_SECOND_1 GENMASK(6, 4)
> +
> +/* RTC_MINUTES & ALARM_MINUTES register field definition */
> +#define TPS6594_MASK_MINUTE_0 GENMASK(3, 0)
> +#define TPS6594_MASK_MINUTE_1 GENMASK(6, 4)
> +
> +/* RTC_HOURS & ALARM_HOURS register field definition */
> +#define TPS6594_MASK_HOUR_0 GENMASK(3, 0)
> +#define TPS6594_MASK_HOUR_1 GENMASK(5, 4)
> +#define TPS6594_BIT_PM_NAM BIT(7)
> +
> +/* RTC_DAYS & ALARM_DAYS register field definition */
> +#define TPS6594_MASK_DAY_0 GENMASK(3, 0)
> +#define TPS6594_MASK_DAY_1 GENMASK(5, 4)
> +
> +/* RTC_MONTHS & ALARM_MONTHS register field definition */
> +#define TPS6594_MASK_MONTH_0 GENMASK(3, 0)
> +#define TPS6594_BIT_MONTH_1 BIT(4)
> +
> +/* RTC_YEARS & ALARM_YEARS register field definition */
> +#define TPS6594_MASK_YEAR_0 GENMASK(3, 0)
> +#define TPS6594_MASK_YEAR_1 GENMASK(7, 4)
> +
> +/* RTC_WEEKS register field definition */
> +#define TPS6594_MASK_WEEK GENMASK(2, 0)
> +
> +/* RTC_CTRL_1 register field definition */
> +#define TPS6594_BIT_STOP_RTC BIT(0)
> +#define TPS6594_BIT_ROUND_30S BIT(1)
> +#define TPS6594_BIT_AUTO_COMP BIT(2)
> +#define TPS6594_BIT_MODE_12_24 BIT(3)
> +#define TPS6594_BIT_SET_32_COUNTER BIT(5)
> +#define TPS6594_BIT_GET_TIME BIT(6)
> +#define TPS6594_BIT_RTC_V_OPT BIT(7)
> +
> +/* RTC_CTRL_2 register field definition */
> +#define TPS6594_BIT_XTAL_EN BIT(0)
> +#define TPS6594_MASK_XTAL_SEL GENMASK(2, 1)
> +#define TPS6594_BIT_LP_STANDBY_SEL BIT(3)
> +#define TPS6594_BIT_FAST_BIST BIT(4)
> +#define TPS6594_MASK_STARTUP_DEST GENMASK(6, 5)
> +#define TPS6594_BIT_FIRST_STARTUP_DONE BIT(7)
> +
> +/* RTC_STATUS register field definition */
> +#define TPS6594_BIT_RUN BIT(1)
> +#define TPS6594_BIT_TIMER BIT(5)
> +#define TPS6594_BIT_ALARM BIT(6)
> +#define TPS6594_BIT_POWER_UP BIT(7)
> +
> +/* RTC_INTERRUPTS register field definition */
> +#define TPS6594_MASK_EVERY GENMASK(1, 0)
> +#define TPS6594_BIT_IT_TIMER BIT(2)
> +#define TPS6594_BIT_IT_ALARM BIT(3)
> +
> +/* RTC_RESET_STATUS register field definition */
> +#define TPS6594_BIT_RESET_STATUS_RTC BIT(0)
> +
> +/* SERIAL_IF_CONFIG register field definition */
> +#define TPS6594_BIT_I2C_SPI_SEL BIT(0)
> +#define TPS6594_BIT_I2C1_SPI_CRC_EN BIT(1)
> +#define TPS6594_BIT_I2C2_CRC_EN BIT(2)
> +#define TPS6594_MASK_T_CRC GENMASK(7, 3)
> +
> +/* WD_QUESTION_ANSW_CNT register field definition */
> +#define TPS6594_MASK_WD_QUESTION GENMASK(3, 0)
> +#define TPS6594_MASK_WD_ANSW_CNT GENMASK(5, 4)
> +
> +/* WD_MODE_REG register field definition */
> +#define TPS6594_BIT_WD_RETURN_LONGWIN BIT(0)
> +#define TPS6594_BIT_WD_MODE_SELECT BIT(1)
> +#define TPS6594_BIT_WD_PWRHOLD BIT(2)
> +
> +/* WD_QA_CFG register field definition */
> +#define TPS6594_MASK_WD_QUESTION_SEED GENMASK(3, 0)
> +#define TPS6594_MASK_WD_QA_LFSR GENMASK(5, 4)
> +#define TPS6594_MASK_WD_QA_FDBK GENMASK(7, 6)
> +
> +/* WD_ERR_STATUS register field definition */
> +#define TPS6594_BIT_WD_LONGWIN_TIMEOUT_INT BIT(0)
> +#define TPS6594_BIT_WD_TIMEOUT BIT(1)
> +#define TPS6594_BIT_WD_TRIG_EARLY BIT(2)
> +#define TPS6594_BIT_WD_ANSW_EARLY BIT(3)
> +#define TPS6594_BIT_WD_SEQ_ERR BIT(4)
> +#define TPS6594_BIT_WD_ANSW_ERR BIT(5)
> +#define TPS6594_BIT_WD_FAIL_INT BIT(6)
> +#define TPS6594_BIT_WD_RST_INT BIT(7)
> +
> +/* WD_THR_CFG register field definition */
> +#define TPS6594_MASK_WD_RST_TH GENMASK(2, 0)
> +#define TPS6594_MASK_WD_FAIL_TH GENMASK(5, 3)
> +#define TPS6594_BIT_WD_EN BIT(6)
> +#define TPS6594_BIT_WD_RST_EN BIT(7)
> +
> +/* WD_FAIL_CNT_REG register field definition */
> +#define TPS6594_MASK_WD_FAIL_CNT GENMASK(3, 0)
> +#define TPS6594_BIT_WD_FIRST_OK BIT(5)
> +#define TPS6594_BIT_WD_BAD_EVENT BIT(6)
> +
> +/* CRC8 polynomial for I2C & SPI protocols */
> +#define TPS6594_CRC8_POLYNOMIAL 0x07
> +
> +/* IRQs */
> +enum tps6594_irqs {
> + /* INT_BUCK1_2 register */
> + TPS6594_IRQ_BUCK1_OV,
> + TPS6594_IRQ_BUCK1_UV,
> + TPS6594_IRQ_BUCK1_SC,
> + TPS6594_IRQ_BUCK1_ILIM,
> + TPS6594_IRQ_BUCK2_OV,
> + TPS6594_IRQ_BUCK2_UV,
> + TPS6594_IRQ_BUCK2_SC,
> + TPS6594_IRQ_BUCK2_ILIM,
> + /* INT_BUCK3_4 register */
> + TPS6594_IRQ_BUCK3_OV,
> + TPS6594_IRQ_BUCK3_UV,
> + TPS6594_IRQ_BUCK3_SC,
> + TPS6594_IRQ_BUCK3_ILIM,
> + TPS6594_IRQ_BUCK4_OV,
> + TPS6594_IRQ_BUCK4_UV,
> + TPS6594_IRQ_BUCK4_SC,
> + TPS6594_IRQ_BUCK4_ILIM,
> + /* INT_BUCK5 register */
> + TPS6594_IRQ_BUCK5_OV,
> + TPS6594_IRQ_BUCK5_UV,
> + TPS6594_IRQ_BUCK5_SC,
> + TPS6594_IRQ_BUCK5_ILIM,
> + /* INT_LDO1_2 register */
> + TPS6594_IRQ_LDO1_OV,
> + TPS6594_IRQ_LDO1_UV,
> + TPS6594_IRQ_LDO1_SC,
> + TPS6594_IRQ_LDO1_ILIM,
> + TPS6594_IRQ_LDO2_OV,
> + TPS6594_IRQ_LDO2_UV,
> + TPS6594_IRQ_LDO2_SC,
> + TPS6594_IRQ_LDO2_ILIM,
> + /* INT_LDO3_4 register */
> + TPS6594_IRQ_LDO3_OV,
> + TPS6594_IRQ_LDO3_UV,
> + TPS6594_IRQ_LDO3_SC,
> + TPS6594_IRQ_LDO3_ILIM,
> + TPS6594_IRQ_LDO4_OV,
> + TPS6594_IRQ_LDO4_UV,
> + TPS6594_IRQ_LDO4_SC,
> + TPS6594_IRQ_LDO4_ILIM,
> + /* INT_VMON register */
> + TPS6594_IRQ_VCCA_OV,
> + TPS6594_IRQ_VCCA_UV,
> + TPS6594_IRQ_VMON1_OV,
> + TPS6594_IRQ_VMON1_UV,
> + TPS6594_IRQ_VMON1_RV,
> + TPS6594_IRQ_VMON2_OV,
> + TPS6594_IRQ_VMON2_UV,
> + TPS6594_IRQ_VMON2_RV,
> + /* INT_GPIO register */
> + TPS6594_IRQ_GPIO9,
> + TPS6594_IRQ_GPIO10,
> + TPS6594_IRQ_GPIO11,
> + /* INT_GPIO1_8 register */
> + TPS6594_IRQ_GPIO1,
> + TPS6594_IRQ_GPIO2,
> + TPS6594_IRQ_GPIO3,
> + TPS6594_IRQ_GPIO4,
> + TPS6594_IRQ_GPIO5,
> + TPS6594_IRQ_GPIO6,
> + TPS6594_IRQ_GPIO7,
> + TPS6594_IRQ_GPIO8,
> + /* INT_STARTUP register */
> + TPS6594_IRQ_NPWRON_START,
> + TPS6594_IRQ_ENABLE,
> + TPS6594_IRQ_FSD,
> + TPS6594_IRQ_SOFT_REBOOT,
> + /* INT_MISC register */
> + TPS6594_IRQ_BIST_PASS,
> + TPS6594_IRQ_EXT_CLK,
> + TPS6594_IRQ_TWARN,
> + /* INT_MODERATE_ERR register */
> + TPS6594_IRQ_TSD_ORD,
> + TPS6594_IRQ_BIST_FAIL,
> + TPS6594_IRQ_REG_CRC_ERR,
> + TPS6594_IRQ_RECOV_CNT,
> + TPS6594_IRQ_SPMI_ERR,
> + TPS6594_IRQ_NPWRON_LONG,
> + TPS6594_IRQ_NINT_READBACK,
> + TPS6594_IRQ_NRSTOUT_READBACK,
> + /* INT_SEVERE_ERR register */
> + TPS6594_IRQ_TSD_IMM,
> + TPS6594_IRQ_VCCA_OVP,
> + TPS6594_IRQ_PFSM_ERR,
> + /* INT_FSM_ERR register */
> + TPS6594_IRQ_IMM_SHUTDOWN,
> + TPS6594_IRQ_ORD_SHUTDOWN,
> + TPS6594_IRQ_MCU_PWR_ERR,
> + TPS6594_IRQ_SOC_PWR_ERR,
> + /* INT_COMM_ERR register */
> + TPS6594_IRQ_COMM_FRM_ERR,
> + TPS6594_IRQ_COMM_CRC_ERR,
> + TPS6594_IRQ_COMM_ADR_ERR,
> + TPS6594_IRQ_I2C2_CRC_ERR,
> + TPS6594_IRQ_I2C2_ADR_ERR,
> + /* INT_READBACK_ERR register */
> + TPS6594_IRQ_EN_DRV_READBACK,
> + TPS6594_IRQ_NRSTOUT_SOC_READBACK,
> + /* INT_ESM register */
> + TPS6594_IRQ_ESM_SOC_PIN,
> + TPS6594_IRQ_ESM_SOC_FAIL,
> + TPS6594_IRQ_ESM_SOC_RST,
> + /* RTC_STATUS register */
> + TPS6594_IRQ_TIMER,
> + TPS6594_IRQ_ALARM,
> + TPS6594_IRQ_POWER_UP,
> +};
> +
> +#define TPS6594_IRQ_NAME_BUCK1_OV "buck1_ov"
> +#define TPS6594_IRQ_NAME_BUCK1_UV "buck1_uv"
> +#define TPS6594_IRQ_NAME_BUCK1_SC "buck1_sc"
> +#define TPS6594_IRQ_NAME_BUCK1_ILIM "buck1_ilim"
> +#define TPS6594_IRQ_NAME_BUCK2_OV "buck2_ov"
> +#define TPS6594_IRQ_NAME_BUCK2_UV "buck2_uv"
> +#define TPS6594_IRQ_NAME_BUCK2_SC "buck2_sc"
> +#define TPS6594_IRQ_NAME_BUCK2_ILIM "buck2_ilim"
> +#define TPS6594_IRQ_NAME_BUCK3_OV "buck3_ov"
> +#define TPS6594_IRQ_NAME_BUCK3_UV "buck3_uv"
> +#define TPS6594_IRQ_NAME_BUCK3_SC "buck3_sc"
> +#define TPS6594_IRQ_NAME_BUCK3_ILIM "buck3_ilim"
> +#define TPS6594_IRQ_NAME_BUCK4_OV "buck4_ov"
> +#define TPS6594_IRQ_NAME_BUCK4_UV "buck4_uv"
> +#define TPS6594_IRQ_NAME_BUCK4_SC "buck4_sc"
> +#define TPS6594_IRQ_NAME_BUCK4_ILIM "buck4_ilim"
> +#define TPS6594_IRQ_NAME_BUCK5_OV "buck5_ov"
> +#define TPS6594_IRQ_NAME_BUCK5_UV "buck5_uv"
> +#define TPS6594_IRQ_NAME_BUCK5_SC "buck5_sc"
> +#define TPS6594_IRQ_NAME_BUCK5_ILIM "buck5_ilim"
> +#define TPS6594_IRQ_NAME_LDO1_OV "ldo1_ov"
> +#define TPS6594_IRQ_NAME_LDO1_UV "ldo1_uv"
> +#define TPS6594_IRQ_NAME_LDO1_SC "ldo1_sc"
> +#define TPS6594_IRQ_NAME_LDO1_ILIM "ldo1_ilim"
> +#define TPS6594_IRQ_NAME_LDO2_OV "ldo2_ov"
> +#define TPS6594_IRQ_NAME_LDO2_UV "ldo2_uv"
> +#define TPS6594_IRQ_NAME_LDO2_SC "ldo2_sc"
> +#define TPS6594_IRQ_NAME_LDO2_ILIM "ldo2_ilim"
> +#define TPS6594_IRQ_NAME_LDO3_OV "ldo3_ov"
> +#define TPS6594_IRQ_NAME_LDO3_UV "ldo3_uv"
> +#define TPS6594_IRQ_NAME_LDO3_SC "ldo3_sc"
> +#define TPS6594_IRQ_NAME_LDO3_ILIM "ldo3_ilim"
> +#define TPS6594_IRQ_NAME_LDO4_OV "ldo4_ov"
> +#define TPS6594_IRQ_NAME_LDO4_UV "ldo4_uv"
> +#define TPS6594_IRQ_NAME_LDO4_SC "ldo4_sc"
> +#define TPS6594_IRQ_NAME_LDO4_ILIM "ldo4_ilim"
> +#define TPS6594_IRQ_NAME_VCCA_OV "vcca_ov"
> +#define TPS6594_IRQ_NAME_VCCA_UV "vcca_uv"
> +#define TPS6594_IRQ_NAME_VMON1_OV "vmon1_ov"
> +#define TPS6594_IRQ_NAME_VMON1_UV "vmon1_uv"
> +#define TPS6594_IRQ_NAME_VMON1_RV "vmon1_rv"
> +#define TPS6594_IRQ_NAME_VMON2_OV "vmon2_ov"
> +#define TPS6594_IRQ_NAME_VMON2_UV "vmon2_uv"
> +#define TPS6594_IRQ_NAME_VMON2_RV "vmon2_rv"
> +#define TPS6594_IRQ_NAME_GPIO9 "gpio9"
> +#define TPS6594_IRQ_NAME_GPIO10 "gpio10"
> +#define TPS6594_IRQ_NAME_GPIO11 "gpio11"
> +#define TPS6594_IRQ_NAME_GPIO1 "gpio1"
> +#define TPS6594_IRQ_NAME_GPIO2 "gpio2"
> +#define TPS6594_IRQ_NAME_GPIO3 "gpio3"
> +#define TPS6594_IRQ_NAME_GPIO4 "gpio4"
> +#define TPS6594_IRQ_NAME_GPIO5 "gpio5"
> +#define TPS6594_IRQ_NAME_GPIO6 "gpio6"
> +#define TPS6594_IRQ_NAME_GPIO7 "gpio7"
> +#define TPS6594_IRQ_NAME_GPIO8 "gpio8"
> +#define TPS6594_IRQ_NAME_NPWRON_START "npwron_start"
> +#define TPS6594_IRQ_NAME_ENABLE "enable"
> +#define TPS6594_IRQ_NAME_FSD "fsd"
> +#define TPS6594_IRQ_NAME_SOFT_REBOOT "soft_reboot"
> +#define TPS6594_IRQ_NAME_BIST_PASS "bist_pass"
> +#define TPS6594_IRQ_NAME_EXT_CLK "ext_clk"
> +#define TPS6594_IRQ_NAME_TWARN "twarn"
> +#define TPS6594_IRQ_NAME_TSD_ORD "tsd_ord"
> +#define TPS6594_IRQ_NAME_BIST_FAIL "bist_fail"
> +#define TPS6594_IRQ_NAME_REG_CRC_ERR "reg_crc_err"
> +#define TPS6594_IRQ_NAME_RECOV_CNT "recov_cnt"
> +#define TPS6594_IRQ_NAME_SPMI_ERR "spmi_err"
> +#define TPS6594_IRQ_NAME_NPWRON_LONG "npwron_long"
> +#define TPS6594_IRQ_NAME_NINT_READBACK "nint_readback"
> +#define TPS6594_IRQ_NAME_NRSTOUT_READBACK "nrstout_readback"
> +#define TPS6594_IRQ_NAME_TSD_IMM "tsd_imm"
> +#define TPS6594_IRQ_NAME_VCCA_OVP "vcca_ovp"
> +#define TPS6594_IRQ_NAME_PFSM_ERR "pfsm_err"
> +#define TPS6594_IRQ_NAME_IMM_SHUTDOWN "imm_shutdown"
> +#define TPS6594_IRQ_NAME_ORD_SHUTDOWN "ord_shutdown"
> +#define TPS6594_IRQ_NAME_MCU_PWR_ERR "mcu_pwr_err"
> +#define TPS6594_IRQ_NAME_SOC_PWR_ERR "soc_pwr_err"
> +#define TPS6594_IRQ_NAME_COMM_FRM_ERR "comm_frm_err"
> +#define TPS6594_IRQ_NAME_COMM_CRC_ERR "comm_crc_err"
> +#define TPS6594_IRQ_NAME_COMM_ADR_ERR "comm_adr_err"
> +#define TPS6594_IRQ_NAME_EN_DRV_READBACK "en_drv_readback"
> +#define TPS6594_IRQ_NAME_NRSTOUT_SOC_READBACK "nrstout_soc_readback"
> +#define TPS6594_IRQ_NAME_ESM_SOC_PIN "esm_soc_pin"
> +#define TPS6594_IRQ_NAME_ESM_SOC_FAIL "esm_soc_fail"
> +#define TPS6594_IRQ_NAME_ESM_SOC_RST "esm_soc_rst"
> +#define TPS6594_IRQ_NAME_TIMER "timer"
> +#define TPS6594_IRQ_NAME_ALARM "alarm"
> +#define TPS6594_IRQ_NAME_POWERUP "powerup"
> +
> +/**
> + * struct tps6594 - device private data structure
> + *
> + * @dev: MFD device

"Parent device"

> + * @chip_id: chip ID
> + * @reg: I2C slave address or SPI chip select number
> + * @use_crc: if true, use CRC for I2C and SPI interface protocols
> + * @regmap: regmap for accessing the device registers
> + * @irq: irq generated by the device
> + * @irq_data: regmap irq data used for the irq chip
> + */
> +struct tps6594 {
> + struct device *dev;
> + unsigned long chip_id;
> + unsigned short reg;
> + bool use_crc;
> + struct regmap *regmap;
> + int irq;
> + struct regmap_irq_chip_data *irq_data;
> +};
> +
> +bool tps6594_is_volatile_reg(struct device *dev, unsigned int reg);
> +int tps6594_device_init(struct tps6594 *tps);
> +
> +#endif /* __LINUX_MFD_TPS6594_H */
> --
> 2.37.3
>

--
Lee Jones [李琼斯]

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