Commit efdab64d authored by Marcello Sylvester Bauer's avatar Marcello Sylvester Bauer Committed by Guenter Roeck
Browse files

hwmon: (xdpe12284) Add support for xdpe11280 



Add support for another Infineon Multi-phase controller chip. The
xdpe11280 uses linear instead of vid data format for VOUT. Detect
VOUT_MODE format during identification and skip the xdpe122 related
adaptions in case it is linear.

Signed-off-by: default avatarMarcello Sylvester Bauer <sylv@sylv.io>
Link: https://lore.kernel.org/r/fa6a4b636a05ecb337d132824efca2545188a2a2.1646214248.git.sylv@sylv.io


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent ff4670ed

Documentation/hwmon/xdpe12284.rst

+8 −4
Original line number Diff line number Diff line
@@ -5,6 +5,10 @@ Kernel driver xdpe122 


Supported chips:



  * Infineon XDPE11280



    Prefix: 'xdpe11280'



  * Infineon XDPE12254



    Prefix: 'xdpe12254'
@@ -20,10 +24,10 @@ Authors: 
Description

-----------



This driver implements support for Infineon Multi-phase XDPE122 family

dual loop voltage regulators.

The family includes XDPE12284 and XDPE12254 devices.

The devices from this family complaint with:

This driver implements support for Infineon Multi-phase XDPE112 and XDPE122

family dual loop voltage regulators.

These families include XDPE11280, XDPE12284 and XDPE12254 devices.

The devices from this family compliant with:



- Intel VR13 and VR13HC rev 1.3, IMVP8 rev 1.2 and IMPVP9 rev 1.3 DC-DC

  converter specification.

drivers/hwmon/pmbus/xdpe12284.c

+18 −3
Original line number Diff line number Diff line
@@ -76,7 +76,22 @@ static int xdpe122_identify(struct i2c_client *client, 
			    struct pmbus_driver_info *info)

{

	u8 vout_params;

	int i, ret;

	int i, ret, vout_mode;



	vout_mode = pmbus_read_byte_data(client, 0, PMBUS_VOUT_MODE);

	if (vout_mode >= 0 && vout_mode != 0xff) {

		switch (vout_mode >> 5) {

		case 0:

			info->format[PSC_VOLTAGE_OUT] = linear;

			return 0;

		case 1:

			info->format[PSC_VOLTAGE_OUT] = vid;

			info->read_word_data = xdpe122_read_word_data;

			break;

		default:

			return -ENODEV;

		}

	}



	for (i = 0; i < XDPE122_PAGE_NUM; i++) {

		/* Read the register with VOUT scaling value.*/
@@ -110,7 +125,6 @@ static int xdpe122_identify(struct i2c_client *client, 
static struct pmbus_driver_info xdpe122_info = {

	.pages = XDPE122_PAGE_NUM,

	.format[PSC_VOLTAGE_IN] = linear,

	.format[PSC_VOLTAGE_OUT] = vid,

	.format[PSC_TEMPERATURE] = linear,

	.format[PSC_CURRENT_IN] = linear,

	.format[PSC_CURRENT_OUT] = linear,
@@ -124,7 +138,6 @@ static struct pmbus_driver_info xdpe122_info = { 
		PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP |

		PMBUS_HAVE_POUT | PMBUS_HAVE_PIN | PMBUS_HAVE_STATUS_INPUT,

	.identify = xdpe122_identify,

	.read_word_data = xdpe122_read_word_data,

};



static int xdpe122_probe(struct i2c_client *client)
@@ -140,6 +153,7 @@ static int xdpe122_probe(struct i2c_client *client) 
}



static const struct i2c_device_id xdpe122_id[] = {

	{"xdpe11280", 0},

	{"xdpe12254", 0},

	{"xdpe12284", 0},

	{}
@@ -148,6 +162,7 @@ static const struct i2c_device_id xdpe122_id[] = { 
MODULE_DEVICE_TABLE(i2c, xdpe122_id);



static const struct of_device_id __maybe_unused xdpe122_of_match[] = {

	{.compatible = "infineon,xdpe11280"},

	{.compatible = "infineon,xdpe12254"},

	{.compatible = "infineon,xdpe12284"},

	{}