Re: [PATCH v4 1/2] platform/x86: int3472: Add TPS68470 board data for Intel nvl

[Dan Scally <dan.scally@ideasonboard.com>]

Hi Arun - sorry for the delay looking at these for you

On 06/03/2026 16:30, Arun T wrote:
> The Intel NVL platform uses IPU8 is powered by a TPS68470 PMIC,requiring board
> data to configure the GPIOs and regulators for proper camera sensor operation.
> 
> Signed-off-by: Arun T <arun.t@intel.com>
> ---
>   .../x86/intel/int3472/tps68470_board_data.c   | 150 ++++++++++++++++++
>   1 file changed, 150 insertions(+)
> 
> diff --git a/drivers/platform/x86/intel/int3472/tps68470_board_data.c b/drivers/platform/x86/intel/int3472/tps68470_board_data.c
> index 71357a036292..8ae5e01f6660 100644
> --- a/drivers/platform/x86/intel/int3472/tps68470_board_data.c
> +++ b/drivers/platform/x86/intel/int3472/tps68470_board_data.c
> @@ -143,6 +143,34 @@ static struct regulator_consumer_supply int3479_aux2_consumer_supplies[] = {
>   	REGULATOR_SUPPLY("dovdd", "i2c-INT3479:00"),
>   };
>   
> +/* Settings for Intel NVL platform */
> +
> +static struct regulator_consumer_supply int3472_core_consumer_supplies[] = {
> +	REGULATOR_SUPPLY("dvdd", "i2c-OVTI13B1:01"),
> +};
> +
> +static struct regulator_consumer_supply int3472_ana_consumer_supplies[] = {
> +	REGULATOR_SUPPLY("avdd", "i2c-OVTI13B1:01"),
> +};
> +
> +static struct regulator_consumer_supply int3472_vcm_consumer_supplies[] = {
> +	REGULATOR_SUPPLY("vdd", "i2c-OVTI13B1:01"),
> +};
> +
> +static struct regulator_consumer_supply int3472_vsio_consumer_supplies[] = {
> +	REGULATOR_SUPPLY("dovdd", "i2c-OVTI13B1:01"),
> +	REGULATOR_SUPPLY("vsio", "i2c-OVTI13B1:01"),
> +	REGULATOR_SUPPLY("vddd", "i2c-OVTI13B1:01"),
> +};
> +
> +static struct regulator_consumer_supply int3472_aux1_consumer_supplies[] = {
> +	REGULATOR_SUPPLY("vdda", "i2c-OVTI13B1:01"),
> +};
> +
> +static struct regulator_consumer_supply int3472_aux2_consumer_supplies[] = {
> +	REGULATOR_SUPPLY("vdddo", "i2c-OVTI13B1:01"),
> +};

These settings will assign all 6 regulators to the i2c-OVTI13B1:01 device, in the vsio case with 3 
different names. The patch for the sensor driver itself is only looking for dovdd, avdd and dvdd - 
something is not quite right here.

> +
>   static const struct regulator_init_data dell_7212_tps68470_core_reg_init_data = {
>   	.constraints = {
>   		.min_uV = 1200000,
> @@ -220,6 +248,82 @@ static const struct regulator_init_data dell_7212_tps68470_aux2_reg_init_data =
>   	.consumer_supplies = int3479_aux2_consumer_supplies,
>   };
>   
> +static const struct regulator_init_data intel_nvl_tps68470_core_reg_init_data = {
> +	.constraints = {
> +		.min_uV = 1200000,
> +		.max_uV = 1200000,
> +		.apply_uV = true,
> +		.always_on = true,

I would not expect the regulators to need to be always_on - with the exception of the VSIO one which 
is a bit special.

> +	},
> +	.num_consumer_supplies = ARRAY_SIZE(int3472_core_consumer_supplies),
> +	.consumer_supplies = int3472_core_consumer_supplies,
> +};
> +
> +static const struct regulator_init_data intel_nvl_tps68470_ana_reg_init_data = {
> +	.constraints = {
> +		.min_uV = 2815200,
> +		.max_uV = 2815200,
> +		.apply_uV = true,
> +		.always_on = true,
> +	},
> +	.num_consumer_supplies = ARRAY_SIZE(int3472_ana_consumer_supplies),
> +	.consumer_supplies = int3472_ana_consumer_supplies,
> +};
> +
> +static const struct regulator_init_data intel_nvl_tps68470_vcm_reg_init_data = {
> +	.constraints = {
> +		.min_uV = 2815200,
> +		.max_uV = 2815200,
> +		.apply_uV = true,
> +		.always_on = true,
> +	},
> +	.num_consumer_supplies = ARRAY_SIZE(int3472_vcm_consumer_supplies),
> +	.consumer_supplies = int3472_vcm_consumer_supplies,
> +};
> +
> +/* Ensure the always-on VIO regulator has the same voltage as VSIO */
> +static const struct regulator_init_data intel_nvl_tps68470_vio_reg_init_data = {
> +	.constraints = {
> +		.min_uV = 1800600,
> +		.max_uV = 1800600,
> +		.apply_uV = true,
> +		.always_on = true,
> +	},
> +};
> +
> +static const struct regulator_init_data intel_nvl_tps68470_vsio_reg_init_data = {
> +	.constraints = {
> +		.min_uV = 1800600,
> +		.max_uV = 1800600,
> +		.apply_uV = true,
> +		.always_on = true,
> +	},
> +	.num_consumer_supplies = ARRAY_SIZE(int3472_vsio_consumer_supplies),
> +	.consumer_supplies = int3472_vsio_consumer_supplies,
> +};
> +
> +static const struct regulator_init_data intel_nvl_tps68470_aux1_reg_init_data = {
> +	.constraints = {
> +		.min_uV = 2815200,
> +		.max_uV = 2815200,
> +		.apply_uV = 1,
> +		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
> +	},
> +	.num_consumer_supplies = ARRAY_SIZE(int3472_aux1_consumer_supplies),
> +	.consumer_supplies = int3472_aux1_consumer_supplies,
> +};
> +
> +static const struct regulator_init_data intel_nvl_tps68470_aux2_reg_init_data = {
> +	.constraints = {
> +		.min_uV = 1800600,
> +		.max_uV = 1800600,
> +		.apply_uV = 1,
> +		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
> +	},
> +	.num_consumer_supplies = ARRAY_SIZE(int3472_aux2_consumer_supplies),
> +	.consumer_supplies = int3472_aux2_consumer_supplies,
> +};
> +
>   static const struct tps68470_regulator_platform_data dell_7212_tps68470_pdata = {
>   	.reg_init_data = {
>   		[TPS68470_CORE] = &dell_7212_tps68470_core_reg_init_data,
> @@ -232,6 +336,18 @@ static const struct tps68470_regulator_platform_data dell_7212_tps68470_pdata =
>   	},
>   };
>   
> +static const struct tps68470_regulator_platform_data intel_nvl_tps68470_pdata = {
> +	.reg_init_data = {
> +		[TPS68470_CORE] = &intel_nvl_tps68470_core_reg_init_data,
> +		[TPS68470_ANA]  = &intel_nvl_tps68470_ana_reg_init_data,
> +		[TPS68470_VCM]  = &intel_nvl_tps68470_vcm_reg_init_data,
> +		[TPS68470_VIO] = &intel_nvl_tps68470_vio_reg_init_data,
> +		[TPS68470_VSIO] = &intel_nvl_tps68470_vsio_reg_init_data,
> +		[TPS68470_AUX1] = &intel_nvl_tps68470_aux1_reg_init_data,
> +		[TPS68470_AUX2] = &intel_nvl_tps68470_aux2_reg_init_data,
> +	},
> +};
> +
>   static struct gpiod_lookup_table surface_go_int347a_gpios = {
>   	.dev_id = "i2c-INT347A:00",
>   	.table = {
> @@ -258,6 +374,23 @@ static struct gpiod_lookup_table dell_7212_int3479_gpios = {
>   	}
>   };
>   
> +static struct gpiod_lookup_table intel_nvl_int347a_gpios = {

I would call it "intel_nvl_ovti13b1_gpios" to match the _HID.

> +	.dev_id = "i2c-OVTI13B1:01",
> +	.table = {
> +		GPIO_LOOKUP("tps68470-gpio", 9, "reset", GPIO_ACTIVE_LOW),
> +		GPIO_LOOKUP("tps68470-gpio", 8, "s_idle", GPIO_ACTIVE_LOW),

Although the sensor driver does look for a reset GPIO, it doesn't currently try to handle one called 
s_idle, nor does patch 2 add that...so that entry might be unnecessary too.
> +		{ }
> +	}
> +};
> +
> +static struct gpiod_lookup_table intel_nvl_int347e_gpios = {
> +	.dev_id = "i2c-OVTI13B1:01",
> +	.table = {
> +	GPIO_LOOKUP("tps68470-gpio", 7, "s_enable", GPIO_ACTIVE_LOW),
> +		{ }
> +	}
> +};

The dev_id is the same here; you shouldn't need a second lookup table for the same device, and 
s_enable isn't handled by the sensor driver.

Thanks
Dan

> +
>   static const struct int3472_tps68470_board_data surface_go_tps68470_board_data = {
>   	.dev_name = "i2c-INT3472:05",
>   	.tps68470_regulator_pdata = &surface_go_tps68470_pdata,
> @@ -287,6 +420,16 @@ static const struct int3472_tps68470_board_data dell_7212_tps68470_board_data =
>   	},
>   };
>   
> +static const struct int3472_tps68470_board_data intel_nvl_tps68470_board_data = {
> +	.dev_name = "i2c-INT3472:04",
> +	.tps68470_regulator_pdata = &intel_nvl_tps68470_pdata,
> +	.n_gpiod_lookups = 2,
> +	.tps68470_gpio_lookup_tables = {
> +		&intel_nvl_int347a_gpios,
> +		&intel_nvl_int347e_gpios,
> +	},
> +};
> +
>   static const struct dmi_system_id int3472_tps68470_board_data_table[] = {
>   	{
>   		.matches = {
> @@ -316,6 +459,13 @@ static const struct dmi_system_id int3472_tps68470_board_data_table[] = {
>   		},
>   		.driver_data = (void *)&dell_7212_tps68470_board_data,
>   	},
> +	{
> +		.matches = {
> +			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
> +			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Nova Lake Client Platform"),
> +		},
> +	       .driver_data = (void *)&intel_nvl_tps68470_board_data,
> +	},
>   	{ }
>   };
>