hwmon: (lm90) Add support for Philips SA56004 (2ef01793) · Commits · e / devices / android_kernel_fairphone_FP5

Documentation/hwmon/lm90

+8 −1

Original line number	Diff line number	Diff line
		@@ -113,7 +113,11 @@ Supported chips:
		Prefix: 'w83l771'
		Addresses scanned: I2C 0x4c
		Datasheet: Not publicly available, can be requested from Nuvoton

		* Philips/NXP SA56004X
		Prefix: 'sa56004'
		Addresses scanned: I2C 0x48 through 0x4F
		Datasheet: Publicly available at NXP website
		http://ics.nxp.com/products/interface/datasheet/sa56004x.pdf

		Author: Jean Delvare <khali@linux-fr.org>

		@@ -193,6 +197,9 @@ W83L771AWG/ASG
		* The AWG and ASG variants only differ in package format.
		* Diode ideality factor configuration (remote sensor) at 0xE3

		SA56004X:
		* Better local resolution

		All temperature values are given in degrees Celsius. Resolution
		is 1.0 degree for the local temperature, 0.125 degree for the remote
		temperature, except for the MAX6657, MAX6658 and MAX6659 which have a

drivers/hwmon/Kconfig

+1 −1

Original line number	Diff line number	Diff line
		@@ -623,7 +623,7 @@ config SENSORS_LM90
		LM86, LM89 and LM99, Analog Devices ADM1032, ADT7461, and ADT7461A,
		Maxim MAX6646, MAX6647, MAX6648, MAX6649, MAX6657, MAX6658, MAX6659,
		MAX6680, MAX6681, MAX6692, MAX6695, MAX6696, ON Semiconductor NCT1008,
		and Winbond/Nuvoton W83L771W/G/AWG/ASG sensor chips.
		Winbond/Nuvoton W83L771W/G/AWG/ASG and Philips SA56004 sensor chips.

		This driver can also be built as a module. If so, the module
		will be called lm90.

drivers/hwmon/lm90.c

+37 −3

Original line number	Diff line number	Diff line
		@@ -54,6 +54,9 @@
		* and extended mode. They are mostly compatible with LM90 except for a data
		* format difference for the temperature value registers.
		*
		* This driver also supports the SA56004 from Philips. This device is
		* pin-compatible with the LM86, the ED/EDP parts are also address-compatible.
		*
		* Since the LM90 was the first chipset supported by this driver, most
		* comments will refer to this chipset, but are actually general and
		* concern all supported chipsets, unless mentioned otherwise.
		@@ -96,13 +99,15 @@
		* MAX6659 can have address 0x4c, 0x4d or 0x4e.
		* MAX6680 and MAX6681 can have address 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b,
		* 0x4c, 0x4d or 0x4e.
		* SA56004 can have address 0x48 through 0x4F.
		*/

		static const unsigned short normal_i2c[] = {
		0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
		0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x48, 0x49, 0x4a, 0x4b, 0x4c,
		0x4d, 0x4e, 0x4f, I2C_CLIENT_END };

		enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
		max6646, w83l771, max6696 };
		max6646, w83l771, max6696, sa56004 };

		/*
		* The LM90 registers
		@@ -152,6 +157,10 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
		#define MAX6659_REG_R_LOCAL_EMERG 0x17
		#define MAX6659_REG_W_LOCAL_EMERG 0x17

		/* SA56004 registers */

		#define SA56004_REG_R_LOCAL_TEMPL 0x22

		#define LM90_DEF_CONVRATE_RVAL 6 /* Def conversion rate register value */
		#define LM90_MAX_CONVRATE_MS 16000 /* Maximum conversion rate in ms */

		@@ -192,6 +201,7 @@ static const struct i2c_device_id lm90_id[] = {
		{ "max6696", max6696 },
		{ "nct1008", adt7461 },
		{ "w83l771", w83l771 },
		{ "sa56004", sa56004 },
		{ }
		};
		MODULE_DEVICE_TABLE(i2c, lm90_id);
		@@ -204,6 +214,8 @@ struct lm90_params {
		u16 alert_alarms; /* Which alarm bits trigger ALERT# */
		/* Upper 8 bits for max6695/96 */
		u8 max_convrate; /* Maximum conversion rate register value */
		u8 reg_local_ext; /* Local extension register if
		LM90_HAVE_LOCAL_EXT is set*/
		};

		static const struct lm90_params lm90_params[] = {
		@@ -238,16 +250,19 @@ static const struct lm90_params lm90_params[] = {
		.flags = LM90_HAVE_LOCAL_EXT,
		.alert_alarms = 0x7c,
		.max_convrate = 6,
		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
		},
		[max6657] = {
		.flags = LM90_HAVE_LOCAL_EXT,
		.alert_alarms = 0x7c,
		.max_convrate = 8,
		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
		},
		[max6659] = {
		.flags = LM90_HAVE_LOCAL_EXT \| LM90_HAVE_EMERGENCY,
		.alert_alarms = 0x7c,
		.max_convrate = 8,
		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
		},
		[max6680] = {
		.flags = LM90_HAVE_OFFSET,
		@@ -259,12 +274,20 @@ static const struct lm90_params lm90_params[] = {
		\| LM90_HAVE_EMERGENCY_ALARM \| LM90_HAVE_TEMP3,
		.alert_alarms = 0x187c,
		.max_convrate = 6,
		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
		},
		[w83l771] = {
		.flags = LM90_HAVE_OFFSET \| LM90_HAVE_REM_LIMIT_EXT,
		.alert_alarms = 0x7c,
		.max_convrate = 8,
		},
		[sa56004] = {
		.flags = LM90_HAVE_OFFSET \| LM90_HAVE_REM_LIMIT_EXT
		\| LM90_HAVE_LOCAL_EXT,
		.alert_alarms = 0x7b,
		.max_convrate = 9,
		.reg_local_ext = SA56004_REG_R_LOCAL_TEMPL,
		},
		};

		/*
		@@ -286,6 +309,7 @@ struct lm90_data {
		u16 alert_alarms; /* Which alarm bits trigger ALERT# */
		/* Upper 8 bits for max6695/96 */
		u8 max_convrate; /* Maximum conversion rate */
		u8 reg_local_ext; /* local extension register offset */

		/* registers values */
		s8 temp8[8]; /* 0: local low limit
		@@ -454,7 +478,7 @@ static struct lm90_data lm90_update_device(struct device dev)

		if (data->flags & LM90_HAVE_LOCAL_EXT) {
		lm90_read16(client, LM90_REG_R_LOCAL_TEMP,
		MAX6657_REG_R_LOCAL_TEMPL,
		data->reg_local_ext,
		&data->temp11[4]);
		} else {
		if (lm90_read_reg(client, LM90_REG_R_LOCAL_TEMP,
		@@ -1263,6 +1287,11 @@ static int lm90_detect(struct i2c_client *new_client,
		name = "w83l771";
		}
		}
		} else
		if (man_id == 0xA1) { /* NXP Semiconductor/Philips */
		if (chip_id == 0x00 && address >= 0x48 && address <= 0x4F) {
		name = "sa56004";
		}
		}

		if (!name) { /* identification failed */
		@@ -1372,6 +1401,11 @@ static int lm90_probe(struct i2c_client *new_client,
		/* Set maximum conversion rate */
		data->max_convrate = lm90_params[data->kind].max_convrate;

		if (data->flags & LM90_HAVE_LOCAL_EXT) {
		data->reg_local_ext = lm90_params[data->kind].reg_local_ext;
		WARN_ON(data->reg_local_ext == 0);
		}

		/* Initialize the LM90 chip */
		lm90_init_client(new_client);