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hwmon: (ads7828) add support for ADS7830

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The ADS7830 device is almost the same as the ADS7828,
except that it does 8-bit sampling, instead of 12-bit.
This patch extends the ads7828 driver to support this chip.

Signed-off-by: Guillaume Roguez <guillaume.roguez@savoirfairelinux.com>
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guillaume Roguez
2012-10-03 16:54:08 -04:00
committed by Guenter Roeck
parent 46d7846292
commit 0962e0f1a5
3 changed files with 32 additions and 11 deletions
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11
Documentation/hwmon/ads7828
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@@ -7,9 +7,15 @@ Supported chips:
Datasheet: Publicly available at the Texas Instruments website:
http://focus.ti.com/lit/ds/symlink/ads7828.pdf
* Texas Instruments ADS7830
Prefix: 'ads7830'
Datasheet: Publicly available at the Texas Instruments website:
http://focus.ti.com/lit/ds/symlink/ads7830.pdf
Authors:
Steve Hardy <shardy@redhat.com>
Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Guillaume Roguez <guillaume.roguez@savoirfairelinux.com>
Platform data
-------------
@@ -35,9 +41,10 @@ in include/linux/platform_data/ads7828.h). The structure fields are:
Description
-----------
This driver implements support for the Texas Instruments ADS7828.
This driver implements support for the Texas Instruments ADS7828 and ADS7830.
This device is a 12-bit 8-channel A-D converter.
The ADS7828 device is a 12-bit 8-channel A/D converter, while the ADS7830 does
8-bit sampling.
It can operate in single ended mode (8 +ve inputs) or in differential mode,
where 4 differential pairs can be measured.