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>
diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c
index e47abf1..88c13e7 100644
--- a/drivers/i2c/i2c-uclass.c
+++ b/drivers/i2c/i2c-uclass.c
@@ -11,7 +11,7 @@
#include <dm/device-internal.h>
#include <dm/lists.h>
#include <dm/pinctrl.h>
-#ifdef CONFIG_DM_GPIO
+#if CONFIG_IS_ENABLED(DM_GPIO)
#include <asm/gpio.h>
#endif
@@ -465,7 +465,7 @@
return chip->offset_len;
}
-#ifdef CONFIG_DM_GPIO
+#if CONFIG_IS_ENABLED(DM_GPIO)
static void i2c_gpio_set_pin(struct gpio_desc *pin, int bit)
{
if (bit)
@@ -561,7 +561,7 @@
{
return -ENOSYS;
}
-#endif // CONFIG_DM_GPIO
+#endif /* DM_GPIO */
int i2c_deblock(struct udevice *bus)
{