At present we have SPL_GPIO and TPL_GPIO but not piain GPIO. This
works because there is a special build rule in Makefile that always
includes the drivers/gpio directory.
It is better to have all driver directories included by drivers/Makefile
and there is already a rule in there for this purpose. It just needs a
Kconfig for U-Boot proper, so add one.
Enable the option always for now, since this mimics current behaviour.
This can be updated once DM_GPIO is used everywhere.
Signed-off-by: Simon Glass <s...@chromium.org>
---
Makefile | 1 -
drivers/gpio/Kconfig | 16 ++++++++++++++--
2 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/Makefile b/Makefile
index f5b6b493a7f..cc51265f1fc 100644
--- a/Makefile
+++ b/Makefile
@@ -813,7 +813,6 @@ libs-y += fs/
libs-y += net/
libs-y += disk/
libs-y += drivers/
-libs-y += drivers/gpio/
libs-y += drivers/net/
libs-y += drivers/net/phy/
libs-y += drivers/power/ \
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 09695f6c2b0..d1069e6d00e 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -2,7 +2,19 @@
# GPIO infrastructure and drivers
#
-menu "GPIO Support"
+menuconfig GPIO
+ bool "GPIO support"
+ default y
+ help
+ Enable support for GPIOs (General-purpose Input/Output) in U-Boot.
+ GPIOs allow U-Boot to read the state of an input line (high or
+ low) and set the state of an output line. This can be used to
+ drive LEDs, control power to various system parts and read user
+ input. GPIOs can be useful to enable a 'sign-of-life' LED,
+ for example. Enable this option to build the drivers in
+ drivers/gpio as part of an U-Boot build.
+
+if GPIO
config DM_GPIO
bool "Enable Driver Model for GPIO drivers"
@@ -503,4 +515,4 @@ config NOMADIK_GPIO
into a number of banks each with 32 GPIOs. The GPIOs for a device are
defined in the device tree with one node for each bank.
-endmenu
+endif
--
2.32.0.605.g8dce9f2422-goog
