Hi, On Mon, Feb 28, 2011 at 01:05:41AM -0500, Keerthy wrote: > This driver exposes the sysfs nodes of the TWL4030 MADC module. > All the voltage channel values are expressed in terms of mV. Channel 13 > and channel 14 are reserved. There are channels which represent > temperature and current the output is represented by celcius > and mA respectively. > > Signed-off-by: Keerthy <j-keerthy@xxxxxx> > --- > V3: > Corrected channel 15 index > > V2: > Changed the names of the sysfs attributes compliant to current, > voltage and temperature attributes. > > V1: > http://www.mail-archive.com/linux-omap@xxxxxxxxxxxxxxx/msg44542.html > > Documentation/hwmon/twl4030-madc-hwmon | 45 +++++++++ > drivers/hwmon/Kconfig | 10 ++ > drivers/hwmon/Makefile | 1 + > drivers/hwmon/twl4030-madc-hwmon.c | 153 ++++++++++++++++++++++++++++++++ > 4 files changed, 209 insertions(+), 0 deletions(-) > create mode 100644 Documentation/hwmon/twl4030-madc-hwmon > create mode 100644 drivers/hwmon/twl4030-madc-hwmon.c > > diff --git a/Documentation/hwmon/twl4030-madc-hwmon b/Documentation/hwmon/twl4030-madc-hwmon > new file mode 100644 > index 0000000..ef79843 > --- /dev/null > +++ b/Documentation/hwmon/twl4030-madc-hwmon > @@ -0,0 +1,45 @@ > +Kernel driver twl4030-madc > +========================= > + > +Supported chips: > + * Texas Instruments TWL4030 > + Prefix: 'twl4030-madc' > + > + > +Authors: > + J Keerthy <j-keerthy@xxxxxx> > + > +Description > +----------- > + > +The Texas Instruments TWL4030 is a Power Management and Audio Circuit. Among > +other things it contains a 10-bit A/D converter MADC. The converter has 16 > +channels which can be used in different modes. > + > + > +See this table for the meaning of the different channels > + > +Channel Signal > +------------------------------------------ > +0 Battery type(BTYPE) > +1 BCI: Battery temperature (BTEMP) > +2 GP analog input > +3 GP analog input > +4 GP analog input > +5 GP analog input > +6 GP analog input > +7 GP analog input > +8 BCI: VBUS voltage(VBUS) > +9 Backup Battery voltage (VBKP) > +10 BCI: Battery charger current (ICHG) > +11 BCI: Battery charger voltage (VCHG) > +12 BCI: Main battery voltage (VBAT) > +13 Reserved > +14 Reserved > +15 VRUSB Supply/Speaker left/Speaker right polarization level > + > + > +The Sysfs nodes will represent the voltage in the units of mV, > +the temperature channel shows the converted temperature in > +degree celcius. The Battery charging current channel represents > +battery charging current in mA. > diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig > index 297bc9a..cb3d895 100644 > --- a/drivers/hwmon/Kconfig > +++ b/drivers/hwmon/Kconfig > @@ -941,6 +941,16 @@ config SENSORS_TMP421 > This driver can also be built as a module. If so, the module > will be called tmp421. > > +config SENSORS_TWL4030_MADC > + tristate "Texas Instruments TWL4030 MADC Hwmon" > + depends on TWL4030_MADC > + help > + If you say yes here you get hwmon support for triton > + TWL4030-MADC. > + > + This driver can also be built as a module. If so it will be called > + twl4030-madc-hwmon. > + > config SENSORS_VIA_CPUTEMP > tristate "VIA CPU temperature sensor" > depends on X86 > diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile > index dde02d9..bc7d740 100644 > --- a/drivers/hwmon/Makefile > +++ b/drivers/hwmon/Makefile > @@ -102,6 +102,7 @@ obj-$(CONFIG_SENSORS_THMC50) += thmc50.o > obj-$(CONFIG_SENSORS_TMP102) += tmp102.o > obj-$(CONFIG_SENSORS_TMP401) += tmp401.o > obj-$(CONFIG_SENSORS_TMP421) += tmp421.o > +obj-$(CONFIG_SENSORS_TWL4030_MADC)+= twl4030-madc-hwmon.o > obj-$(CONFIG_SENSORS_VIA_CPUTEMP)+= via-cputemp.o > obj-$(CONFIG_SENSORS_VIA686A) += via686a.o > obj-$(CONFIG_SENSORS_VT1211) += vt1211.o > diff --git a/drivers/hwmon/twl4030-madc-hwmon.c b/drivers/hwmon/twl4030-madc-hwmon.c > new file mode 100644 > index 0000000..5eb563f > --- /dev/null > +++ b/drivers/hwmon/twl4030-madc-hwmon.c > @@ -0,0 +1,153 @@ > +/* > + * > + * TWL4030 MADC Hwmon driver-This driver monitors the real time > + * conversion of analog signals like battery temperature, > + * battery type, battery level etc. User can ask for the conversion on a > + * particular channel using the sysfs nodes. > + * > + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ > + * J Keerthy <j-keerthy@xxxxxx> > + * > + * This program is free software; you can redistribute it and/or > + * modify it under the terms of the GNU General Public License > + * version 2 as published by the Free Software Foundation. > + * > + * This program is distributed in the hope that it will be useful, but > + * WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + * General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License > + * along with this program; if not, write to the Free Software > + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA > + * 02110-1301 USA > + * > + */ > + > +#include <linux/platform_device.h> > +#include <linux/i2c/twl.h> > +#include <linux/i2c/twl4030-madc.h> You are including a file which is only introduced in a subsequent patch. This would break the ability to bisect if patches are applied in that order. Please reorder your patches. > +#include <linux/hwmon.h> > +#include <linux/hwmon-sysfs.h> The driver uses information from <linux/init.h>, <linux/stddef.h>, <linux/sysfs.h>, <linux/module.h>, <linux/err.h>, <linux/kernel.h>, and possibly others I might have missed. You should include those files explicitly and not depend on other include files to do it for you. See Linux "Kernel patch submission checklist" in SubmittingPatches, item #1. Guenter -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
