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Commit e53e6497 authored by Guenter Roeck's avatar Guenter Roeck
Browse files

hwmon: (pmbus/lm25066) Refactor device specific coefficients 



Initialize device specific coefficients from table instead of hard-coding it
to simplify adding additional chips.

Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 2507abb3

drivers/hwmon/pmbus/lm25066.c

+118 −78
Original line number Diff line number Diff line
@@ -44,6 +44,103 @@ enum chips { lm25066, lm5064, lm5066 }; 


#define LM25066_DEV_SETUP_CL		(1 << 4)	/* Current limit */



struct __coeff {

	short m, b, R;

};



#define PSC_CURRENT_IN_L	(PSC_NUM_CLASSES)

#define PSC_POWER_L		(PSC_NUM_CLASSES + 1)



static struct __coeff lm25066_coeff[3][PSC_NUM_CLASSES + 2] = {

	[lm25066] = {

		[PSC_VOLTAGE_IN] = {

			.m = 22070,

			.R = -2,

		},

		[PSC_VOLTAGE_OUT] = {

			.m = 22070,

			.R = -2,

		},

		[PSC_CURRENT_IN] = {

			.m = 13661,

			.R = -2,

		},

		[PSC_CURRENT_IN_L] = {

			.m = 6852,

			.R = -2,

		},

		[PSC_POWER] = {

			.m = 736,

			.R = -2,

		},

		[PSC_POWER_L] = {

			.m = 369,

			.R = -2,

		},

		[PSC_TEMPERATURE] = {

			.m = 16,

		},

	},

	[lm5064] = {

		[PSC_VOLTAGE_IN] = {

			.m = 4611,

			.R = -2,

		},

		[PSC_VOLTAGE_OUT] = {

			.m = 4621,

			.R = -2,

		},

		[PSC_CURRENT_IN] = {

			.m = 10742,

			.R = -2,

		},

		[PSC_CURRENT_IN_L] = {

			.m = 5456,

			.R = -2,

		},

		[PSC_POWER] = {

			.m = 1204,

			.R = -3,

		},

		[PSC_POWER_L] = {

			.m = 612,

			.R = -3,

		},

		[PSC_TEMPERATURE] = {

			.m = 16,

		},

	},

	[lm5066] = {

		[PSC_VOLTAGE_IN] = {

			.m = 4587,

			.R = -2,

		},

		[PSC_VOLTAGE_OUT] = {

			.m = 4587,

			.R = -2,

		},

		[PSC_CURRENT_IN] = {

			.m = 10753,

			.R = -2,

		},

		[PSC_CURRENT_IN_L] = {

			.m = 5405,

			.R = -2,

		},

		[PSC_POWER] = {

			.m = 1204,

			.R = -3,

		},

		[PSC_POWER_L] = {

			.m = 605,

			.R = -3,

		},

		[PSC_TEMPERATURE] = {

			.m = 16,

		},

	},

};



struct lm25066_data {

	int id;

	struct pmbus_driver_info info;
@@ -162,6 +259,7 @@ static int lm25066_probe(struct i2c_client *client, 
	int config;

	struct lm25066_data *data;

	struct pmbus_driver_info *info;

	struct __coeff *coeff;



	if (!i2c_check_functionality(client->adapter,

				     I2C_FUNC_SMBUS_READ_BYTE_DATA))
@@ -186,9 +284,6 @@ static int lm25066_probe(struct i2c_client *client, 
	info->format[PSC_TEMPERATURE] = direct;

	info->format[PSC_POWER] = direct;



	info->m[PSC_TEMPERATURE] = 16;

	info->b[PSC_TEMPERATURE] = 0;

	info->R[PSC_TEMPERATURE] = 0;



	info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VMON | PMBUS_HAVE_VOUT

	  | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_PIN | PMBUS_HAVE_IIN
@@ -197,81 +292,26 @@ static int lm25066_probe(struct i2c_client *client, 
	info->read_word_data = lm25066_read_word_data;

	info->write_word_data = lm25066_write_word_data;



	switch (id->driver_data) {

	case lm25066:

		info->m[PSC_VOLTAGE_IN] = 22070;

		info->b[PSC_VOLTAGE_IN] = 0;

		info->R[PSC_VOLTAGE_IN] = -2;

		info->m[PSC_VOLTAGE_OUT] = 22070;

		info->b[PSC_VOLTAGE_OUT] = 0;

		info->R[PSC_VOLTAGE_OUT] = -2;



	coeff = &lm25066_coeff[data->id][0];

	info->m[PSC_TEMPERATURE] = coeff[PSC_TEMPERATURE].m;

	info->b[PSC_TEMPERATURE] = coeff[PSC_TEMPERATURE].b;

	info->R[PSC_TEMPERATURE] = coeff[PSC_TEMPERATURE].R;

	info->m[PSC_VOLTAGE_IN] = coeff[PSC_VOLTAGE_IN].m;

	info->b[PSC_VOLTAGE_IN] = coeff[PSC_VOLTAGE_IN].b;

	info->R[PSC_VOLTAGE_IN] = coeff[PSC_VOLTAGE_IN].R;

	info->m[PSC_VOLTAGE_OUT] = coeff[PSC_VOLTAGE_OUT].m;

	info->b[PSC_VOLTAGE_OUT] = coeff[PSC_VOLTAGE_OUT].b;

	info->R[PSC_VOLTAGE_OUT] = coeff[PSC_VOLTAGE_OUT].R;

	info->b[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN].b;

	info->R[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN].R;

	info->b[PSC_POWER] = coeff[PSC_POWER].b;

	info->R[PSC_POWER] = coeff[PSC_POWER].R;

	if (config & LM25066_DEV_SETUP_CL) {

			info->m[PSC_CURRENT_IN] = 6852;

			info->b[PSC_CURRENT_IN] = 0;

			info->R[PSC_CURRENT_IN] = -2;

			info->m[PSC_POWER] = 369;

			info->b[PSC_POWER] = 0;

			info->R[PSC_POWER] = -2;

		info->m[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN_L].m;

		info->m[PSC_POWER] = coeff[PSC_POWER_L].m;

	} else {

			info->m[PSC_CURRENT_IN] = 13661;

			info->b[PSC_CURRENT_IN] = 0;

			info->R[PSC_CURRENT_IN] = -2;

			info->m[PSC_POWER] = 736;

			info->b[PSC_POWER] = 0;

			info->R[PSC_POWER] = -2;

		}

		break;

	case lm5064:

		info->m[PSC_VOLTAGE_IN] = 22075;

		info->b[PSC_VOLTAGE_IN] = 0;

		info->R[PSC_VOLTAGE_IN] = -2;

		info->m[PSC_VOLTAGE_OUT] = 22075;

		info->b[PSC_VOLTAGE_OUT] = 0;

		info->R[PSC_VOLTAGE_OUT] = -2;



		if (config & LM25066_DEV_SETUP_CL) {

			info->m[PSC_CURRENT_IN] = 6713;

			info->b[PSC_CURRENT_IN] = 0;

			info->R[PSC_CURRENT_IN] = -2;

			info->m[PSC_POWER] = 3619;

			info->b[PSC_POWER] = 0;

			info->R[PSC_POWER] = -3;

		} else {

			info->m[PSC_CURRENT_IN] = 13426;

			info->b[PSC_CURRENT_IN] = 0;

			info->R[PSC_CURRENT_IN] = -2;

			info->m[PSC_POWER] = 7238;

			info->b[PSC_POWER] = 0;

			info->R[PSC_POWER] = -3;

		}

		break;

	case lm5066:

		info->m[PSC_VOLTAGE_IN] = 4587;

		info->b[PSC_VOLTAGE_IN] = 0;

		info->R[PSC_VOLTAGE_IN] = -2;

		info->m[PSC_VOLTAGE_OUT] = 4587;

		info->b[PSC_VOLTAGE_OUT] = 0;

		info->R[PSC_VOLTAGE_OUT] = -2;



		if (config & LM25066_DEV_SETUP_CL) {

			info->m[PSC_CURRENT_IN] = 10753;

			info->b[PSC_CURRENT_IN] = 0;

			info->R[PSC_CURRENT_IN] = -2;

			info->m[PSC_POWER] = 1204;

			info->b[PSC_POWER] = 0;

			info->R[PSC_POWER] = -3;

		} else {

			info->m[PSC_CURRENT_IN] = 5405;

			info->b[PSC_CURRENT_IN] = 0;

			info->R[PSC_CURRENT_IN] = -2;

			info->m[PSC_POWER] = 605;

			info->b[PSC_POWER] = 0;

			info->R[PSC_POWER] = -3;

		}

		break;

	default:

		return -ENODEV;

		info->m[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN].m;

		info->m[PSC_POWER] = coeff[PSC_POWER].m;

	}



	return pmbus_do_probe(client, id, info);