Re: [PATCHv6 08/11] mfd: rk8xx: add rk806 support

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On Fri, 27 Jan 2023, Sebastian Reichel wrote:

> Add support for SPI connected rk806, which is used by the RK3588
> evaluation boards. The PMIC is advertised to support I2C and SPI,
> but the evaluation boards all use SPI. Thus only SPI support is
> added here.
> 
> Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
> ---
>  drivers/mfd/Kconfig       |  14 ++
>  drivers/mfd/Makefile      |   1 +
>  drivers/mfd/rk8xx-core.c  |  69 ++++++-
>  drivers/mfd/rk8xx-spi.c   | 129 ++++++++++++
>  include/linux/mfd/rk808.h | 409 ++++++++++++++++++++++++++++++++++++++
>  5 files changed, 619 insertions(+), 3 deletions(-)
>  create mode 100644 drivers/mfd/rk8xx-spi.c

Few nits, nothing bad ...

> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 692e38283bda..13582ea5cb44 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -1222,6 +1222,20 @@ config MFD_RK8XX_I2C
>  	  through I2C interface. The device supports multiple sub-devices
>  	  including interrupts, RTC, LDO & DCDC regulators, and onkey.
>  
> +config MFD_RK8XX_SPI
> +	tristate "Rockchip RK806 Power Management Chip"
> +	depends on SPI && OF
> +	select MFD_CORE
> +	select REGMAP_SPI
> +	select REGMAP_IRQ
> +	select MFD_RK8XX
> +	help
> +	  If you say yes here you get support for the RK806 Power Management
> +	  chip.
> +	  This driver provides common support for accessing the device
> +	  through an SPI interface. The device supports multiple sub-devices
> +	  including interrupts, LDO & DCDC regulators, and power on-key.
> +
>  config MFD_RN5T618
>  	tristate "Ricoh RN5T567/618 PMIC"
>  	depends on I2C
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index f65ef1bd0810..a88f27cd837b 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -222,6 +222,7 @@ obj-$(CONFIG_MFD_NTXEC)		+= ntxec.o
>  obj-$(CONFIG_MFD_RC5T583)	+= rc5t583.o rc5t583-irq.o
>  obj-$(CONFIG_MFD_RK8XX)		+= rk8xx-core.o
>  obj-$(CONFIG_MFD_RK8XX_I2C)	+= rk8xx-i2c.o
> +obj-$(CONFIG_MFD_RK8XX_SPI)	+= rk8xx-spi.o
>  obj-$(CONFIG_MFD_RN5T618)	+= rn5t618.o
>  obj-$(CONFIG_MFD_SEC_CORE)	+= sec-core.o sec-irq.o
>  obj-$(CONFIG_MFD_SYSCON)	+= syscon.o
> diff --git a/drivers/mfd/rk8xx-core.c b/drivers/mfd/rk8xx-core.c
> index 21c6484a951c..252030b9be4c 100644
> --- a/drivers/mfd/rk8xx-core.c
> +++ b/drivers/mfd/rk8xx-core.c
> @@ -37,6 +37,11 @@ static const struct resource rk805_key_resources[] = {
>  	DEFINE_RES_IRQ(RK805_IRQ_PWRON_FALL),
>  };
>  
> +static struct resource rk806_pwrkey_resources[] = {
> +	DEFINE_RES_IRQ(RK806_IRQ_PWRON_FALL),
> +	DEFINE_RES_IRQ(RK806_IRQ_PWRON_RISE),
> +};
> +
>  static const struct resource rk817_pwrkey_resources[] = {
>  	DEFINE_RES_IRQ(RK817_IRQ_PWRON_RISE),
>  	DEFINE_RES_IRQ(RK817_IRQ_PWRON_FALL),
> @@ -64,6 +69,17 @@ static const struct mfd_cell rk805s[] = {
>  	},
>  };
>  
> +static const struct mfd_cell rk806s[] = {
> +	{ .name = "rk805-pinctrl", .id = PLATFORM_DEVID_AUTO, },
> +	{ .name = "rk808-regulator", .id = PLATFORM_DEVID_AUTO, },
> +	{
> +		.name = "rk805-pwrkey",
> +		.resources = rk806_pwrkey_resources,
> +		.num_resources = ARRAY_SIZE(rk806_pwrkey_resources),
> +		.id = PLATFORM_DEVID_AUTO,
> +	},
> +};
> +
>  static const struct mfd_cell rk808s[] = {
>  	{ .name = "rk808-clkout", .id = PLATFORM_DEVID_NONE, },
>  	{ .name = "rk808-regulator", .id = PLATFORM_DEVID_NONE, },
> @@ -122,6 +138,12 @@ static const struct rk808_reg_data rk805_pre_init_reg[] = {
>  	{RK805_THERMAL_REG, TEMP_HOTDIE_MSK, TEMP115C},
>  };
>  
> +static const struct rk808_reg_data rk806_pre_init_reg[] = {
> +	{ RK806_GPIO_INT_CONFIG, RK806_INT_POL_MSK, RK806_INT_POL_L },
> +	{ RK806_SYS_CFG3, RK806_SLAVE_RESTART_FUN_MSK, RK806_SLAVE_RESTART_FUN_EN },
> +	{ RK806_SYS_OPTION, RK806_SYS_ENB2_2M_MSK, RK806_SYS_ENB2_2M_EN },
> +};
> +
>  static const struct rk808_reg_data rk808_pre_init_reg[] = {
>  	{ RK808_BUCK3_CONFIG_REG, BUCK_ILMIN_MASK,  BUCK_ILMIN_150MA },
>  	{ RK808_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK,  BUCK_ILMIN_200MA },
> @@ -272,6 +294,27 @@ static const struct regmap_irq rk805_irqs[] = {
>  	},
>  };
>  
> +static const struct regmap_irq rk806_irqs[] = {
> +	/* INT_STS0 IRQs */
> +	REGMAP_IRQ_REG(RK806_IRQ_PWRON_FALL, 0, RK806_INT_STS_PWRON_FALL),
> +	REGMAP_IRQ_REG(RK806_IRQ_PWRON_RISE, 0, RK806_INT_STS_PWRON_RISE),
> +	REGMAP_IRQ_REG(RK806_IRQ_PWRON, 0, RK806_INT_STS_PWRON),
> +	REGMAP_IRQ_REG(RK806_IRQ_PWRON_LP, 0, RK806_INT_STS_PWRON_LP),
> +	REGMAP_IRQ_REG(RK806_IRQ_HOTDIE, 0, RK806_INT_STS_HOTDIE),
> +	REGMAP_IRQ_REG(RK806_IRQ_VDC_RISE, 0, RK806_INT_STS_VDC_RISE),
> +	REGMAP_IRQ_REG(RK806_IRQ_VDC_FALL, 0, RK806_INT_STS_VDC_FALL),
> +	REGMAP_IRQ_REG(RK806_IRQ_VB_LO, 0, RK806_INT_STS_VB_LO),
> +	/* INT_STS1 IRQs */
> +	REGMAP_IRQ_REG(RK806_IRQ_REV0, 1, RK806_INT_STS_REV0),
> +	REGMAP_IRQ_REG(RK806_IRQ_REV1, 1, RK806_INT_STS_REV1),
> +	REGMAP_IRQ_REG(RK806_IRQ_REV2, 1, RK806_INT_STS_REV2),
> +	REGMAP_IRQ_REG(RK806_IRQ_CRC_ERROR, 1, RK806_INT_STS_CRC_ERROR),
> +	REGMAP_IRQ_REG(RK806_IRQ_SLP3_GPIO, 1, RK806_INT_STS_SLP3_GPIO),
> +	REGMAP_IRQ_REG(RK806_IRQ_SLP2_GPIO, 1, RK806_INT_STS_SLP2_GPIO),
> +	REGMAP_IRQ_REG(RK806_IRQ_SLP1_GPIO, 1, RK806_INT_STS_SLP1_GPIO),
> +	REGMAP_IRQ_REG(RK806_IRQ_WDT, 1, RK806_INT_STS_WDT),
> +};
> +
>  static const struct regmap_irq rk808_irqs[] = {
>  	/* INT_STS */
>  	[RK808_IRQ_VOUT_LO] = {
> @@ -422,6 +465,18 @@ static struct regmap_irq_chip rk805_irq_chip = {
>  	.init_ack_masked = true,
>  };
>  
> +static struct regmap_irq_chip rk806_irq_chip = {
> +	.name = "rk806",
> +	.irqs = rk806_irqs,
> +	.num_irqs = ARRAY_SIZE(rk806_irqs),
> +	.num_regs = 2,
> +	.irq_reg_stride = 2,
> +	.mask_base = RK806_INT_MSK0,
> +	.status_base = RK806_INT_STS0,
> +	.ack_base = RK806_INT_STS0,
> +	.init_ack_masked = true,
> +};
> +
>  static const struct regmap_irq_chip rk808_irq_chip = {
>  	.name = "rk808",
>  	.irqs = rk808_irqs,
> @@ -548,6 +603,7 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap
>  	struct rk808 *rk808;
>  	const struct rk808_reg_data *pre_init_reg;
>  	const struct mfd_cell *cells;
> +	int dual_support = 0;
>  	int nr_pre_init_regs;
>  	int nr_cells;
>  	int ret;
> @@ -569,6 +625,14 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap
>  		cells = rk805s;
>  		nr_cells = ARRAY_SIZE(rk805s);
>  		break;
> +	case RK806_ID:
> +		rk808->regmap_irq_chip = &rk806_irq_chip;
> +		pre_init_reg = rk806_pre_init_reg;
> +		nr_pre_init_regs = ARRAY_SIZE(rk806_pre_init_reg);
> +		cells = rk806s;
> +		nr_cells = ARRAY_SIZE(rk806s);
> +		dual_support = IRQF_SHARED;
> +		break;
>  	case RK808_ID:
>  		rk808->regmap_irq_chip = &rk808_irq_chip;
>  		pre_init_reg = rk808_pre_init_reg;
> @@ -600,7 +664,7 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap
>  		return dev_err_probe(dev, -EINVAL, "No interrupt support, no core IRQ\n");
>  
>  	ret = devm_regmap_add_irq_chip(dev, rk808->regmap, irq,
> -				       IRQF_ONESHOT, -1,
> +				       IRQF_ONESHOT | dual_support, -1,
>  				       rk808->regmap_irq_chip, &rk808->irq_data);
>  	if (ret)
>  		return dev_err_probe(dev, ret, "Failed to add irq_chip\n");
> @@ -615,8 +679,7 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap
>  					     pre_init_reg[i].addr);
>  	}
>  
> -	ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE,
> -			      cells, nr_cells, NULL, 0,
> +	ret = devm_mfd_add_devices(dev, 0, cells, nr_cells, NULL, 0,
>  			      regmap_irq_get_domain(rk808->irq_data));
>  	if (ret)
>  		return dev_err_probe(dev, ret, "failed to add MFD devices\n");
> diff --git a/drivers/mfd/rk8xx-spi.c b/drivers/mfd/rk8xx-spi.c
> new file mode 100644
> index 000000000000..3f6c5b1334f7
> --- /dev/null
> +++ b/drivers/mfd/rk8xx-spi.c
> @@ -0,0 +1,129 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Rockchip RK806 Core (SPI) driver
> + *
> + * Copyright (c) 2021 Rockchip Electronics Co., Ltd.
> + * Copyright (c) 2023 Collabora Ltd.
> + *
> + * Author: Xu Shengfei <xsf@xxxxxxxxxxxxxx>
> + * Author: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
> + */
> +
> +#include <linux/interrupt.h>
> +#include <linux/mfd/core.h>
> +#include <linux/mfd/rk808.h>
> +#include <linux/module.h>
> +#include <linux/regmap.h>
> +#include <linux/spi/spi.h>
> +
> +#define RK806_CMD		0
> +#define RK806_REG_ADDR_L	1
> +#define RK806_REG_ADDR_H	2
> +#define RK806_CMD_WITH_SIZE(CMD, VALUE_BYTES) \
> +	(RK806_CMD_ ## CMD | (VALUE_BYTES-1))

Nit: Spaces around the '-' please.

Spaces around the ## look odd to me too.

> +static const struct regmap_range rk80g6_volatile_ranges[] = {
> +	regmap_reg_range(RK806_POWER_EN0, RK806_POWER_EN5),
> +	regmap_reg_range(RK806_DVS_START_CTRL, RK806_INT_MSK1),
> +};
> +
> +static const struct regmap_access_table rk806_volatile_table = {
> +	.yes_ranges = rk806_volatile_ranges,
> +	.n_yes_ranges = ARRAY_SIZE(rk806_volatile_ranges),
> +};
> +
> +static const struct regmap_config rk806_regmap_config_spi = {
> +	.reg_bits = 8,
> +	.val_bits = 8,
> +	.cache_type = REGCACHE_RBTREE,
> +	.volatile_table = &rk806_volatile_table,
> +};
> +
> +static int rk806_spi_bus_write(void *context, const void *vdata, size_t count)
> +{
> +	struct device *dev = context;
> +	struct spi_device *spi = to_spi_device(dev);
> +	const char *data = vdata;
> +	char buffer[3] = { 0 };
> +	struct spi_transfer xfer[2] = { 0 };
> +	/* count includes the register size */
> +	size_t val_size = count - 1;
> +
> +	if (val_size < 1 || val_size > 128)
> +		return -EINVAL;
> +
> +	buffer[RK806_CMD]	 = RK806_CMD_WITH_SIZE(WRITE, val_size);
> +	buffer[RK806_REG_ADDR_L] = data[0];
> +	buffer[RK806_REG_ADDR_H] = RK806_REG_H;
> +
> +	xfer[0].tx_buf = buffer;
> +	xfer[0].len = sizeof(buffer);
> +	xfer[1].tx_buf = data + 1;

Why, what's at [0]?  Clearer with a define?

> +	xfer[1].len = count - 1;

Isn't this val_size?

> +	return spi_sync_transfer(spi, xfer, ARRAY_SIZE(xfer));
> +}
> +
> +static int rk806_spi_bus_read(void *context, const void *vreg, size_t reg_size,
> +			      void *val, size_t val_size)
> +{
> +	struct device *dev = context;
> +	struct spi_device *spi = to_spi_device(dev);
> +	const char *reg = vreg;
> +	char txbuf[3] = { 0 };
> +
> +	if (reg_size != sizeof(char) || val_size < 1 || val_size > 128)

#define MAX_BUFFER_SIZE 128?

> +		return -EINVAL;
> +
> +	txbuf[RK806_CMD]	= RK806_CMD_WITH_SIZE(READ, val_size);
> +	txbuf[RK806_REG_ADDR_L]	= *reg;
> +	txbuf[RK806_REG_ADDR_H]	= RK806_REG_H;
> +
> +	return spi_write_then_read(spi, txbuf, sizeof(txbuf), val, val_size);
> +}
> +
> +static const struct regmap_bus rk806_regmap_bus_spi = {
> +	.write = rk806_spi_bus_write,
> +	.read = rk806_spi_bus_read,
> +	.reg_format_endian_default = REGMAP_ENDIAN_NATIVE,
> +	.val_format_endian_default = REGMAP_ENDIAN_NATIVE,
> +};
> +
> +static int rk8xx_spi_probe(struct spi_device *spi)
> +{
> +	struct regmap *regmap;
> +
> +	regmap = devm_regmap_init(&spi->dev, &rk806_regmap_bus_spi,
> +				  &spi->dev, &rk806_regmap_config_spi);
> +	if (IS_ERR(regmap))
> +		return dev_err_probe(&spi->dev, PTR_ERR(regmap),
> +				     "Failed to initialize register map\n");

It's more widely known as regmap.

> +	return rk8xx_probe(&spi->dev, RK806_ID, spi->irq, regmap);
> +}
> +
> +static const struct of_device_id rk8xx_spi_of_match[] = {
> +	{ .compatible = "rockchip,rk806", },
> +	{ }
> +};
> +MODULE_DEVICE_TABLE(of, rk8xx_spi_of_match);
> +
> +static const struct spi_device_id rk8xx_spi_id_table[] = {
> +	{ "rk806", 0 },
> +	{ }
> +};
> +MODULE_DEVICE_TABLE(spi, rk8xx_spi_id_table);
> +
> +static struct spi_driver rk8xx_spi_driver = {
> +	.driver		= {
> +		.name	= "rk8xx-spi",
> +		.of_match_table = rk8xx_spi_of_match,
> +	},
> +	.probe		= rk8xx_spi_probe,
> +	.id_table	= rk8xx_spi_id_table,
> +};
> +module_spi_driver(rk8xx_spi_driver);
> +
> +MODULE_AUTHOR("Xu Shengfei <xsf@xxxxxxxxxxxxxx>");
> +MODULE_DESCRIPTION("RK8xx SPI PMIC driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h
> index 4183427a80fe..78e167a92483 100644
> --- a/include/linux/mfd/rk808.h
> +++ b/include/linux/mfd/rk808.h
> @@ -289,6 +289,414 @@ enum rk805_reg {
>  #define RK805_INT_ALARM_EN		(1 << 3)
>  #define RK805_INT_TIMER_EN		(1 << 2)
>  
> +/* RK806 */
> +#define RK806_POWER_EN0			0x0
> +#define RK806_POWER_EN1			0x1
> +#define RK806_POWER_EN2			0x2
> +#define RK806_POWER_EN3			0x3
> +#define RK806_POWER_EN4			0x4
> +#define RK806_POWER_EN5			0x5
> +#define RK806_POWER_SLP_EN0		0x6
> +#define RK806_POWER_SLP_EN1		0x7
> +#define RK806_POWER_SLP_EN2		0x8
> +#define RK806_POWER_DISCHRG_EN0		0x9
> +#define RK806_POWER_DISCHRG_EN1		0xA
> +#define RK806_POWER_DISCHRG_EN2		0xB
> +#define RK806_BUCK_FB_CONFIG		0xC
> +#define RK806_SLP_LP_CONFIG		0xD
> +#define RK806_POWER_FPWM_EN0		0xE
> +#define RK806_POWER_FPWM_EN1		0xF
> +#define RK806_BUCK1_CONFIG		0x10
> +#define RK806_BUCK2_CONFIG		0x11
> +#define RK806_BUCK3_CONFIG		0x12
> +#define RK806_BUCK4_CONFIG		0x13
> +#define RK806_BUCK5_CONFIG		0x14
> +#define RK806_BUCK6_CONFIG		0x15
> +#define RK806_BUCK7_CONFIG		0x16
> +#define RK806_BUCK8_CONFIG		0x17
> +#define RK806_BUCK9_CONFIG		0x18
> +#define RK806_BUCK10_CONFIG		0x19
> +#define RK806_BUCK1_ON_VSEL		0x1A
> +#define RK806_BUCK2_ON_VSEL		0x1B
> +#define RK806_BUCK3_ON_VSEL		0x1C
> +#define RK806_BUCK4_ON_VSEL		0x1D
> +#define RK806_BUCK5_ON_VSEL		0x1E
> +#define RK806_BUCK6_ON_VSEL		0x1F
> +#define RK806_BUCK7_ON_VSEL		0x20
> +#define RK806_BUCK8_ON_VSEL		0x21
> +#define RK806_BUCK9_ON_VSEL		0x22
> +#define RK806_BUCK10_ON_VSEL		0x23
> +#define RK806_BUCK1_SLP_VSEL		0x24
> +#define RK806_BUCK2_SLP_VSEL		0x25
> +#define RK806_BUCK3_SLP_VSEL		0x26
> +#define RK806_BUCK4_SLP_VSEL		0x27
> +#define RK806_BUCK5_SLP_VSEL		0x28
> +#define RK806_BUCK6_SLP_VSEL		0x29
> +#define RK806_BUCK7_SLP_VSEL		0x2A
> +#define RK806_BUCK8_SLP_VSEL		0x2B
> +#define RK806_BUCK9_SLP_VSEL		0x2D
> +#define RK806_BUCK10_SLP_VSEL		0x2E
> +#define RK806_BUCK_DEBUG1		0x30
> +#define RK806_BUCK_DEBUG2		0x31
> +#define RK806_BUCK_DEBUG3		0x32
> +#define RK806_BUCK_DEBUG4		0x33
> +#define RK806_BUCK_DEBUG5		0x34
> +#define RK806_BUCK_DEBUG6		0x35
> +#define RK806_BUCK_DEBUG7		0x36
> +#define RK806_BUCK_DEBUG8		0x37
> +#define RK806_BUCK_DEBUG9		0x38
> +#define RK806_BUCK_DEBUG10		0x39
> +#define RK806_BUCK_DEBUG11		0x3A
> +#define RK806_BUCK_DEBUG12		0x3B
> +#define RK806_BUCK_DEBUG13		0x3C
> +#define RK806_BUCK_DEBUG14		0x3D
> +#define RK806_BUCK_DEBUG15		0x3E
> +#define RK806_BUCK_DEBUG16		0x3F
> +#define RK806_BUCK_DEBUG17		0x40
> +#define RK806_BUCK_DEBUG18		0x41
> +#define RK806_NLDO_IMAX			0x42
> +#define RK806_NLDO1_ON_VSEL		0x43
> +#define RK806_NLDO2_ON_VSEL		0x44
> +#define RK806_NLDO3_ON_VSEL		0x45
> +#define RK806_NLDO4_ON_VSEL		0x46
> +#define RK806_NLDO5_ON_VSEL		0x47
> +#define RK806_NLDO1_SLP_VSEL		0x48
> +#define RK806_NLDO2_SLP_VSEL		0x49
> +#define RK806_NLDO3_SLP_VSEL		0x4A
> +#define RK806_NLDO4_SLP_VSEL		0x4B
> +#define RK806_NLDO5_SLP_VSEL		0x4C
> +#define RK806_PLDO_IMAX			0x4D
> +#define RK806_PLDO1_ON_VSEL		0x4E
> +#define RK806_PLDO2_ON_VSEL		0x4F
> +#define RK806_PLDO3_ON_VSEL		0x50
> +#define RK806_PLDO4_ON_VSEL		0x51
> +#define RK806_PLDO5_ON_VSEL		0x52
> +#define RK806_PLDO6_ON_VSEL		0x53
> +#define RK806_PLDO1_SLP_VSEL		0x54
> +#define RK806_PLDO2_SLP_VSEL		0x55
> +#define RK806_PLDO3_SLP_VSEL		0x56
> +#define RK806_PLDO4_SLP_VSEL		0x57
> +#define RK806_PLDO5_SLP_VSEL		0x58
> +#define RK806_PLDO6_SLP_VSEL		0x59
> +#define RK806_CHIP_NAME			0x5A
> +#define RK806_CHIP_VER			0x5B
> +#define RK806_OTP_VER			0x5C
> +#define RK806_SYS_STS			0x5D
> +#define RK806_SYS_CFG0			0x5E
> +#define RK806_SYS_CFG1			0x5F
> +#define RK806_SYS_OPTION		0x61
> +#define RK806_SLEEP_CONFIG0		0x62
> +#define RK806_SLEEP_CONFIG1		0x63
> +#define RK806_SLEEP_CTR_SEL0		0x64
> +#define RK806_SLEEP_CTR_SEL1		0x65
> +#define RK806_SLEEP_CTR_SEL2		0x66
> +#define RK806_SLEEP_CTR_SEL3		0x67
> +#define RK806_SLEEP_CTR_SEL4		0x68
> +#define RK806_SLEEP_CTR_SEL5		0x69
> +#define RK806_DVS_CTRL_SEL0		0x6A
> +#define RK806_DVS_CTRL_SEL1		0x6B
> +#define RK806_DVS_CTRL_SEL2		0x6C
> +#define RK806_DVS_CTRL_SEL3		0x6D
> +#define RK806_DVS_CTRL_SEL4		0x6E
> +#define RK806_DVS_CTRL_SEL5		0x6F
> +#define RK806_DVS_START_CTRL		0x70
> +#define RK806_SLEEP_GPIO		0x71
> +#define RK806_SYS_CFG3			0x72
> +#define RK806_ON_SOURCE			0x74
> +#define RK806_OFF_SOURCE		0x75
> +#define RK806_PWRON_KEY			0x76
> +#define RK806_INT_STS0			0x77
> +#define RK806_INT_MSK0			0x78
> +#define RK806_INT_STS1			0x79
> +#define RK806_INT_MSK1			0x7A
> +#define RK806_GPIO_INT_CONFIG		0x7B
> +#define RK806_DATA_REG0			0x7C
> +#define RK806_DATA_REG1			0x7D
> +#define RK806_DATA_REG2			0x7E
> +#define RK806_DATA_REG3			0x7F
> +#define RK806_DATA_REG4			0x80
> +#define RK806_DATA_REG5			0x81
> +#define RK806_DATA_REG6			0x82
> +#define RK806_DATA_REG7			0x83
> +#define RK806_DATA_REG8			0x84
> +#define RK806_DATA_REG9			0x85
> +#define RK806_DATA_REG10		0x86
> +#define RK806_DATA_REG11		0x87
> +#define RK806_DATA_REG12		0x88
> +#define RK806_DATA_REG13		0x89
> +#define RK806_DATA_REG14		0x8A
> +#define RK806_DATA_REG15		0x8B
> +#define RK806_TM_REG			0x8C
> +#define RK806_OTP_EN_REG		0x8D
> +#define RK806_FUNC_OTP_EN_REG		0x8E
> +#define RK806_TEST_REG1			0x8F
> +#define RK806_TEST_REG2			0x90
> +#define RK806_TEST_REG3			0x91
> +#define RK806_TEST_REG4			0x92
> +#define RK806_TEST_REG5			0x93
> +#define RK806_BUCK_VSEL_OTP_REG0	0x94
> +#define RK806_BUCK_VSEL_OTP_REG1	0x95
> +#define RK806_BUCK_VSEL_OTP_REG2	0x96
> +#define RK806_BUCK_VSEL_OTP_REG3	0x97
> +#define RK806_BUCK_VSEL_OTP_REG4	0x98
> +#define RK806_BUCK_VSEL_OTP_REG5	0x99
> +#define RK806_BUCK_VSEL_OTP_REG6	0x9A
> +#define RK806_BUCK_VSEL_OTP_REG7	0x9B
> +#define RK806_BUCK_VSEL_OTP_REG8	0x9C
> +#define RK806_BUCK_VSEL_OTP_REG9	0x9D
> +#define RK806_NLDO1_VSEL_OTP_REG0	0x9E
> +#define RK806_NLDO1_VSEL_OTP_REG1	0x9F
> +#define RK806_NLDO1_VSEL_OTP_REG2	0xA0
> +#define RK806_NLDO1_VSEL_OTP_REG3	0xA1
> +#define RK806_NLDO1_VSEL_OTP_REG4	0xA2
> +#define RK806_PLDO_VSEL_OTP_REG0	0xA3
> +#define RK806_PLDO_VSEL_OTP_REG1	0xA4
> +#define RK806_PLDO_VSEL_OTP_REG2	0xA5
> +#define RK806_PLDO_VSEL_OTP_REG3	0xA6
> +#define RK806_PLDO_VSEL_OTP_REG4	0xA7
> +#define RK806_PLDO_VSEL_OTP_REG5	0xA8
> +#define RK806_BUCK_EN_OTP_REG1		0xA9
> +#define RK806_NLDO_EN_OTP_REG1		0xAA
> +#define RK806_PLDO_EN_OTP_REG1		0xAB
> +#define RK806_BUCK_FB_RES_OTP_REG1	0xAC
> +#define RK806_OTP_RESEV_REG0		0xAD
> +#define RK806_OTP_RESEV_REG1		0xAE
> +#define RK806_OTP_RESEV_REG2		0xAF
> +#define RK806_OTP_RESEV_REG3		0xB0
> +#define RK806_OTP_RESEV_REG4		0xB1
> +#define RK806_BUCK_SEQ_REG0		0xB2
> +#define RK806_BUCK_SEQ_REG1		0xB3
> +#define RK806_BUCK_SEQ_REG2		0xB4
> +#define RK806_BUCK_SEQ_REG3		0xB5
> +#define RK806_BUCK_SEQ_REG4		0xB6
> +#define RK806_BUCK_SEQ_REG5		0xB7
> +#define RK806_BUCK_SEQ_REG6		0xB8
> +#define RK806_BUCK_SEQ_REG7		0xB9
> +#define RK806_BUCK_SEQ_REG8		0xBA
> +#define RK806_BUCK_SEQ_REG9		0xBB
> +#define RK806_BUCK_SEQ_REG10		0xBC
> +#define RK806_BUCK_SEQ_REG11		0xBD
> +#define RK806_BUCK_SEQ_REG12		0xBE
> +#define RK806_BUCK_SEQ_REG13		0xBF
> +#define RK806_BUCK_SEQ_REG14		0xC0
> +#define RK806_BUCK_SEQ_REG15		0xC1
> +#define RK806_BUCK_SEQ_REG16		0xC2
> +#define RK806_BUCK_SEQ_REG17		0xC3
> +#define RK806_HK_TRIM_REG1		0xC4
> +#define RK806_HK_TRIM_REG2		0xC5
> +#define RK806_BUCK_REF_TRIM_REG1	0xC6
> +#define RK806_BUCK_REF_TRIM_REG2	0xC7
> +#define RK806_BUCK_REF_TRIM_REG3	0xC8
> +#define RK806_BUCK_REF_TRIM_REG4	0xC9
> +#define RK806_BUCK_REF_TRIM_REG5	0xCA
> +#define RK806_BUCK_OSC_TRIM_REG1	0xCB
> +#define RK806_BUCK_OSC_TRIM_REG2	0xCC
> +#define RK806_BUCK_OSC_TRIM_REG3	0xCD
> +#define RK806_BUCK_OSC_TRIM_REG4	0xCE
> +#define RK806_BUCK_OSC_TRIM_REG5	0xCF
> +#define RK806_BUCK_TRIM_ZCDIOS_REG1	0xD0
> +#define RK806_BUCK_TRIM_ZCDIOS_REG2	0xD1
> +#define RK806_NLDO_TRIM_REG1		0xD2
> +#define RK806_NLDO_TRIM_REG2		0xD3
> +#define RK806_NLDO_TRIM_REG3		0xD4
> +#define RK806_PLDO_TRIM_REG1		0xD5
> +#define RK806_PLDO_TRIM_REG2		0xD6
> +#define RK806_PLDO_TRIM_REG3		0xD7
> +#define RK806_TRIM_ICOMP_REG1		0xD8
> +#define RK806_TRIM_ICOMP_REG2		0xD9
> +#define RK806_EFUSE_CONTROL_REGH	0xDA
> +#define RK806_FUSE_PROG_REG		0xDB
> +#define RK806_MAIN_FSM_STS_REG		0xDD
> +#define RK806_FSM_REG			0xDE
> +#define RK806_TOP_RESEV_OFFR		0xEC
> +#define RK806_TOP_RESEV_POR		0xED
> +#define RK806_BUCK_VRSN_REG1		0xEE
> +#define RK806_BUCK_VRSN_REG2		0xEF
> +#define RK806_NLDO_RLOAD_SEL_REG1	0xF0
> +#define RK806_PLDO_RLOAD_SEL_REG1	0xF1
> +#define RK806_PLDO_RLOAD_SEL_REG2	0xF2
> +#define RK806_BUCK_CMIN_MX_REG1		0xF3
> +#define RK806_BUCK_CMIN_MX_REG2		0xF4
> +#define RK806_BUCK_FREQ_SET_REG1	0xF5
> +#define RK806_BUCK_FREQ_SET_REG2	0xF6
> +#define RK806_BUCK_RS_MEABS_REG1	0xF7
> +#define RK806_BUCK_RS_MEABS_REG2	0xF8
> +#define RK806_BUCK_RS_ZDLEB_REG1	0xF9
> +#define RK806_BUCK_RS_ZDLEB_REG2	0xFA
> +#define RK806_BUCK_RSERVE_REG1		0xFB
> +#define RK806_BUCK_RSERVE_REG2		0xFC
> +#define RK806_BUCK_RSERVE_REG3		0xFD
> +#define RK806_BUCK_RSERVE_REG4		0xFE
> +#define RK806_BUCK_RSERVE_REG5		0xFF
> +
> +/* INT_STS Register field definitions */
> +#define RK806_INT_STS_PWRON_FALL	BIT(0)
> +#define RK806_INT_STS_PWRON_RISE	BIT(1)
> +#define RK806_INT_STS_PWRON		BIT(2)
> +#define RK806_INT_STS_PWRON_LP		BIT(3)
> +#define RK806_INT_STS_HOTDIE		BIT(4)
> +#define RK806_INT_STS_VDC_RISE		BIT(5)
> +#define RK806_INT_STS_VDC_FALL		BIT(6)
> +#define RK806_INT_STS_VB_LO		BIT(7)
> +#define RK806_INT_STS_REV0		BIT(0)
> +#define RK806_INT_STS_REV1		BIT(1)
> +#define RK806_INT_STS_REV2		BIT(2)
> +#define RK806_INT_STS_CRC_ERROR		BIT(3)
> +#define RK806_INT_STS_SLP3_GPIO		BIT(4)
> +#define RK806_INT_STS_SLP2_GPIO		BIT(5)
> +#define RK806_INT_STS_SLP1_GPIO		BIT(6)
> +#define RK806_INT_STS_WDT		BIT(7)
> +
> +/* SPI command */
> +#define RK806_CMD_READ			0
> +#define RK806_CMD_WRITE			BIT(7)
> +#define RK806_CMD_CRC_EN		BIT(6)
> +#define RK806_CMD_CRC_DIS		0
> +#define RK806_CMD_LEN_MSK		0x0f
> +#define RK806_REG_H			0x00
> +
> +#define VERSION_AB		0x01
> +
> +enum rk806_reg_id {
> +	RK806_ID_DCDC1 = 0,
> +	RK806_ID_DCDC2,
> +	RK806_ID_DCDC3,
> +	RK806_ID_DCDC4,
> +	RK806_ID_DCDC5,
> +	RK806_ID_DCDC6,
> +	RK806_ID_DCDC7,
> +	RK806_ID_DCDC8,
> +	RK806_ID_DCDC9,
> +	RK806_ID_DCDC10,
> +
> +	RK806_ID_NLDO1,
> +	RK806_ID_NLDO2,
> +	RK806_ID_NLDO3,
> +	RK806_ID_NLDO4,
> +	RK806_ID_NLDO5,
> +
> +	RK806_ID_PLDO1,
> +	RK806_ID_PLDO2,
> +	RK806_ID_PLDO3,
> +	RK806_ID_PLDO4,
> +	RK806_ID_PLDO5,
> +	RK806_ID_PLDO6,
> +	RK806_ID_END,
> +};
> +
> +/* Define the RK806 IRQ numbers */
> +enum rk806_irqs {
> +	/* INT_STS0 registers */
> +	RK806_IRQ_PWRON_FALL,
> +	RK806_IRQ_PWRON_RISE,
> +	RK806_IRQ_PWRON,
> +	RK806_IRQ_PWRON_LP,
> +	RK806_IRQ_HOTDIE,
> +	RK806_IRQ_VDC_RISE,
> +	RK806_IRQ_VDC_FALL,
> +	RK806_IRQ_VB_LO,
> +
> +	/* INT_STS0 registers */
> +	RK806_IRQ_REV0,
> +	RK806_IRQ_REV1,
> +	RK806_IRQ_REV2,
> +	RK806_IRQ_CRC_ERROR,
> +	RK806_IRQ_SLP3_GPIO,
> +	RK806_IRQ_SLP2_GPIO,
> +	RK806_IRQ_SLP1_GPIO,
> +	RK806_IRQ_WDT,
> +};
> +
> +/* VCC1 Low Voltage Threshold */
> +enum rk806_lv_sel {
> +	VB_LO_SEL_2800,
> +	VB_LO_SEL_2900,
> +	VB_LO_SEL_3000,
> +	VB_LO_SEL_3100,
> +	VB_LO_SEL_3200,
> +	VB_LO_SEL_3300,
> +	VB_LO_SEL_3400,
> +	VB_LO_SEL_3500,
> +};
> +
> +/* System Shutdown Voltage Select */
> +enum rk806_uv_sel {
> +	VB_UV_SEL_2700,
> +	VB_UV_SEL_2800,
> +	VB_UV_SEL_2900,
> +	VB_UV_SEL_3000,
> +	VB_UV_SEL_3100,
> +	VB_UV_SEL_3200,
> +	VB_UV_SEL_3300,
> +	VB_UV_SEL_3400,
> +};
> +
> +/* Pin Function */
> +enum rk806_pwrctrl_fun {
> +	PWRCTRL_NULL_FUN,
> +	PWRCTRL_SLP_FUN,
> +	PWRCTRL_POWOFF_FUN,
> +	PWRCTRL_RST_FUN,
> +	PWRCTRL_DVS_FUN,
> +	PWRCTRL_GPIO_FUN,
> +};
> +
> +/* Pin Polarity */
> +enum rk806_pin_level {
> +	POL_LOW,
> +	POL_HIGH,
> +};
> +
> +enum rk806_vsel_ctr_sel {
> +	CTR_BY_NO_EFFECT,
> +	CTR_BY_PWRCTRL1,
> +	CTR_BY_PWRCTRL2,
> +	CTR_BY_PWRCTRL3,
> +};
> +
> +enum rk806_dvs_ctr_sel {
> +	CTR_SEL_NO_EFFECT,
> +	CTR_SEL_DVS_START1,
> +	CTR_SEL_DVS_START2,
> +	CTR_SEL_DVS_START3,
> +};
> +
> +enum rk806_pin_dr_sel {
> +	RK806_PIN_INPUT,
> +	RK806_PIN_OUTPUT,
> +};
> +
> +#define RK806_INT_POL_MSK		BIT(1)
> +#define RK806_INT_POL_H			BIT(1)
> +#define RK806_INT_POL_L			0
> +
> +#define RK806_SLAVE_RESTART_FUN_MSK	BIT(1)
> +#define RK806_SLAVE_RESTART_FUN_EN	BIT(1)
> +#define RK806_SLAVE_RESTART_FUN_OFF	0
> +
> +#define RK806_SYS_ENB2_2M_MSK		BIT(1)
> +#define RK806_SYS_ENB2_2M_EN		BIT(1)
> +#define RK806_SYS_ENB2_2M_OFF		0
> +
> +enum rk806_int_fun {
> +	RK806_INT_ONLY,
> +	RK806_INT_ADN_WKUP,
> +};
> +
> +enum rk806_dvs_mode {
> +	RK806_DVS_NOT_SUPPORT,
> +	RK806_DVS_START1,
> +	RK806_DVS_START2,
> +	RK806_DVS_START3,
> +	RK806_DVS_PWRCTRL1,
> +	RK806_DVS_PWRCTRL2,
> +	RK806_DVS_PWRCTRL3,
> +	RK806_DVS_START_PWRCTR1,
> +	RK806_DVS_START_PWRCTR2,
> +	RK806_DVS_START_PWRCTR3,
> +	RK806_DVS_END,
> +};
> +
>  /* RK808 IRQ Definitions */
>  #define RK808_IRQ_VOUT_LO	0
>  #define RK808_IRQ_VB_LO		1
> @@ -780,6 +1188,7 @@ enum {
>  
>  enum {
>  	RK805_ID = 0x8050,
> +	RK806_ID = 0x8060,
>  	RK808_ID = 0x0000,
>  	RK809_ID = 0x8090,
>  	RK817_ID = 0x8170,
> -- 
> 2.39.0
> 

-- 
Lee Jones [李琼斯]



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