mb/google/hatch: Add method to set GPIOs in romstage

Add method variant_romstage_gpio_table() with empty weak implementation
to allow variants to override as needed for touchscreen power
sequencing (to be implemented in a subsequent commit). Call method
in romstage to program any GPIOs the variant may need to set.

TEST=tested with rest of patch train

Change-Id: I1939387b5bb98d6d282fd044e9ce8780dbe0d2c5
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71058
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/mainboard/google/hatch/variants/baseboard/gpio.c b/src/mainboard/google/hatch/variants/baseboard/gpio.c
index c65375e2ec2f..609fbf742a9d 100644
--- a/src/mainboard/google/hatch/variants/baseboard/gpio.c
+++ b/src/mainboard/google/hatch/variants/baseboard/gpio.c
@@ -434,6 +434,12 @@ const struct pad_config *__weak variant_early_gpio_table(size_t *num)
 	return NULL;
 }
 
+/* Weak implementation of romstage gpio */
+const struct pad_config *__weak variant_romstage_gpio_table(size_t *num)
+{
+	*num = 0;
+	return NULL;
+}
 /* Weak implementation of finalize gpio */
 const struct pad_config *__weak variant_finalize_gpio_table(size_t *num)
 {