From 15742c8a42c89aa5e63542b0de00b0dc4c5038cf Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Sat, 19 Jun 2010 02:29:24 +0200 Subject: [PATCH] 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. --- drivers/mfd/Kconfig | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) 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 -- GitLab