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atxp1 I2C kernel driver

PATCH New Sebastian Witt 2 participants 2 messages May 19, 2005

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Sebastian Witt

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#0 lore raw

PATCH 1/1 atxp1 I2C kernel driver

This driver allows to set the the VID on some platforms.

The patch is against linux-2.6.11-rc4-mm1, the patch for i2c-vid.h is also included to support VID register calculation for the atxp1 driver.

Signed-off-by Sebastian Witt <[email protected]>

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drivers/i2c/chips/Kconfig +13 -0
diff -ruN linux-2.6.11-rc4-mm1-orig/drivers/i2c/chips/Kconfig linux-2.6.11-rc4-mm1/drivers/i2c/chips/Kconfig
@@ -393,6 +393,19 @@
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-rtc8564.
 
+config SENSORS_ATXP1
+	tristate "Attansic ATXP1 VID controller"
+	depends on I2C && EXPERIMENTAL
+	help
+	  If you say yes here you get support for the Attansic ATXP1 VID
+	  controller.
+
+	  If your board have such a chip, you are able to control your CPU
+	  core and other voltages.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called atxp1.
+
 config ISP1301_OMAP
 	tristate "Philips ISP1301 with OMAP OTG"
 	depends on I2C && ARCH_OMAP_OTG
drivers/i2c/chips/Makefile +1 -0
diff -ruN linux-2.6.11-rc4-mm1-orig/drivers/i2c/chips/Makefile linux-2.6.11-rc4-mm1/drivers/i2c/chips/Makefile
@@ -11,6 +11,7 @@
 obj-$(CONFIG_SENSORS_ADM1025)	+= adm1025.o
 obj-$(CONFIG_SENSORS_ADM1026)	+= adm1026.o
 obj-$(CONFIG_SENSORS_ADM1031)	+= adm1031.o
+obj-$(CONFIG_SENSORS_ATXP1)	+= atxp1.o
 obj-$(CONFIG_SENSORS_DS1621)	+= ds1621.o
 obj-$(CONFIG_SENSORS_EEPROM)	+= eeprom.o
 obj-$(CONFIG_SENSORS_FSCHER)	+= fscher.o
drivers/i2c/chips/atxp1.c +361 -0

361 lines not on this page · raw message

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include/linux/i2c-vid.h +19 -0
@@ -97,3 +97,22 @@
 		                     2050 - (val) * 50);
 	}
 }
+
+static inline int reg_from_vid(int val, int vrm)
+{
+	
+	switch (vrm) {
+
+	case  0:
+		return -1;
+
+	case 91:		/* VRM 9.1 */
+	case 90:		/* VRM 9.0 */
+		return ((val >= 1100) && (val <= 1850) ?
+				((18500 - val * 10) / 25 + 5) / 10 : -1);
+	
+	default:
+		return -1;
+
+	}
+}
Applied
#1 lore raw

PATCH 1/1 atxp1 I2C kernel driver

Quoted 7 lines · Sebastian Witt

This driver allows to set the the VID on some platforms.

The patch is against linux-2.6.11-rc4-mm1, the patch for i2c-vid.h is also included to support VID register calculation for the atxp1 driver.

Signed-off-by Sebastian Witt <[email protected]>

Applied, thanks. I also changed the driver a bit so that all functions are marked static, which is what is needed.

thanks,

greg k-h