dm: Expand and complete Kconfig in drivers/

[karo-tx-uboot.git] / drivers / gpio / Kconfig

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index d21302f8da95316cdf7891556a73bb0de576b8e1..b609e73bbaf5fe4993b6a560ef9101c4363ec5e2 100644 (file)
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -2,5 +2,8 @@ config DM_GPIO
        bool "Enable Driver Model for GPIO drivers"
        depends on DM
        help
-         If you want to use driver model for GPIO drivers, say Y.
-         To use legacy GPIO drivers, say N.
+         Enable driver model for GPIO access. The standard GPIO
+         interface (gpio_get_value(), etc.) is then implemented by
+         the GPIO uclass. Drivers provide methods to query the
+         particular GPIOs that they provide. The uclass interface
+         is defined in include/asm-generic/gpio.h.