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| author | Samuel Ortiz <sameo@linux.intel.com> | 2010-06-19 02:29:24 +0200 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2010-08-12 11:27:23 +0200 |
| commit | 15742c8a42c89aa5e63542b0de00b0dc4c5038cf (patch) | |
| tree | a342b299378a82f74ba0d15109ba227265151849 /drivers/mfd | |
| parent | 3cb46ac058f8ce3ed339fc5dcf6faae4329153c9 (diff) | |
| download | linux-15742c8a42c89aa5e63542b0de00b0dc4c5038cf.tar.gz linux-15742c8a42c89aa5e63542b0de00b0dc4c5038cf.tar.bz2 linux-15742c8a42c89aa5e63542b0de00b0dc4c5038cf.zip | |
mfd: More verbose MFD Kconfig entry
For people to be able to intellingibly decide if they want to enable MFD
drivers or not, we have to give them a much better description of what they
are.
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/Kconfig | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 9da0e504bbe9..29781ca1eb6f 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -7,7 +7,16 @@ menuconfig MFD_SUPPORT depends on HAS_IOMEM default y help - Configure MFD device drivers. + Multifunction devices embed several functions (e.g. GPIOs, + touchscreens, keyboards, current regulators, power management chips, + etc...) in one single integrated circuit. They usually talk to the + main CPU through one or more IRQ lines and low speed data busses (SPI, + I2C, etc..). They appear as one single device to the main system + through the data bus and the MFD framework allows for sub devices + (a.k.a. functions) to appear as discrete platform devices. + MFDs are typically found on embedded platforms. + + This option alone does not add any kernel code. if MFD_SUPPORT |