From b2f9bac0e703631b12f1e40c1a8b15345923a29a Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sun, 8 Aug 2021 12:20:24 -0600 Subject: [PATCH] gpio: Add a GPIO config 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 --- Makefile | 1 - drivers/gpio/Kconfig | 16 ++++++++++++++-- 2 files changed, 14 insertions(+), 3 deletions(-) diff --git a/Makefile b/Makefile index 27fba9157b..a2f7129794 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 ab9adbdd6e..afb4c69529 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 -- 2.39.5