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-rw-r--r--drivers/gpio/Kconfig7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index d21302f8da..b609e73bba 100644
--- 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.