At present if CONFIG_SPL_GPIO_SUPPORT is enabled then the GPIO uclass is included in SPL/TPL without any control for boards. Some boards may want to disable this to reduce code size where GPIOs are not needed in SPL or TPL.
Add a new Kconfig option to permit this. Default it to 'y' so that existing boards work correctly.
Signed-off-by: Simon Glass sjg@chromium.org ---
drivers/gpio/Kconfig | 22 ++++++++++++++++++++++ drivers/gpio/Makefile | 2 +- 2 files changed, 23 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 7d9c97f537..73451c9379 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -14,6 +14,28 @@ config DM_GPIO particular GPIOs that they provide. The uclass interface is defined in include/asm-generic/gpio.h.
+config SPL_DM_GPIO + bool "Enable Driver Model for GPIO drivers in SPL" + depends on DM_GPIO && SPL && SPL_GPIO_SUPPORT + default y + help + 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. + +config TPL_DM_GPIO + bool "Enable Driver Model for GPIO drivers in TPL" + depends on DM_GPIO && TPL && TPL_GPIO_SUPPORT + default y + help + 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. + config GPIO_HOG bool "Enable GPIO hog support" depends on DM_GPIO diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 4a8aa0ff6f..56e9374e30 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -7,7 +7,7 @@ ifndef CONFIG_SPL_BUILD obj-$(CONFIG_DWAPB_GPIO) += dwapb_gpio.o obj-$(CONFIG_AXP_GPIO) += axp_gpio.o endif -obj-$(CONFIG_DM_GPIO) += gpio-uclass.o +obj-$(CONFIG_$(SPL_TPL_)DM_GPIO) += gpio-uclass.o
obj-$(CONFIG_$(SPL_)DM_PCA953X) += pca953x_gpio.o obj-$(CONFIG_DM_74X164) += 74x164_gpio.o