diff options
| author | Simon Glass <sjg@chromium.org> | 2019-12-06 21:41:35 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2019-12-15 08:52:29 +0800 |
| commit | bcee8d6764f9215f16b393a35581000178633254 (patch) | |
| tree | 592ad4911f0bb8c35a5ef4de29b03c62fb6cb32f /drivers/gpio/Kconfig | |
| parent | 3c10dc95bdd0706ff85ffdc25ecd6381c3d51e4c (diff) | |
| download | u-boot-bcee8d6764f9215f16b393a35581000178633254.tar.gz | |
dm: gpio: Allow control of GPIO uclass in SPL
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.
Change existing uses of CONFIG_DM_GPIO to CONFIG_IS_ENABLED(DM_GPIO) to
preserve the current behaviour. Also update the 74x164 GPIO driver since
it cannot build with SPL.
This allows us to remove the hacks in config_uncmd_spl.h and
Makefile.uncmd_spl (eventually those files should be removed).
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'drivers/gpio/Kconfig')
| -rw-r--r-- | drivers/gpio/Kconfig | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index c1ad5d64a3..447cf04578 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_DM && SPL_GPIO_SUPPORT + default y + help + Enable driver model for GPIO access in SPL. 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_DM && TPL_GPIO_SUPPORT + default y + help + Enable driver model for GPIO access in TPL. 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 |