mb/google/zork: Add support for GPIO configuration on sleep path

This change adds support to configure GPIOs on the sleep path. This is
required to turn off power to devices that do not act as wake sources
and to assert reset to devices.

Currently, variant_sleep_gpio_table() returns an empty table by
default. In the following changes, entries will be added to
gpio_sleep_table.

BUG=b:152582706

Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I7286cbf165024bdd81f8748e525542dce8dd8702
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2253642
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@google.com>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42932
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_common.c b/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_common.c
index a4e86487bd..614e837726 100644
--- a/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_common.c
+++ b/src/mainboard/google/zork/variants/baseboard/gpio_baseboard_common.c
@@ -30,3 +30,12 @@ const __weak struct soc_amd_gpio *variant_early_gpio_table(size_t *size)
 	*size = ARRAY_SIZE(early_gpio_table);
 	return early_gpio_table;
 }
+
+static const struct soc_amd_gpio gpio_sleep_table[] = {
+};
+
+const __weak struct soc_amd_gpio *variant_sleep_gpio_table(size_t *size, int slp_typ)
+{
+	*size = ARRAY_SIZE(gpio_sleep_table);
+	return gpio_sleep_table;
+}