mb/google/dedede: Generate MS0X entry and provide variant hook

BUG=b:245426120
BRANCH=firmware-dedede-13606.B
TEST=emerge-dedede coreboot
     check SSDT table has MS0X entry
     Scope (\_SB)
    {
        Method (MS0X, 1, Serialized)
        {
            If ((Arg0 == One)) {}
            Else
            {
            }
        }
    }

Change-Id: Id01089531503e62231c5ab19e4cd8056198b9acb
Signed-off-by: Tony Huang <tony-huang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67373
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
index aef30751cc..fda5c31ab8 100644
--- a/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
@@ -15,6 +15,11 @@ const struct pad_config *variant_early_gpio_table(size_t *num);
 const struct pad_config *variant_sleep_gpio_table(size_t *num);
 const struct pad_config *variant_override_gpio_table(size_t *num);
 
+enum s0ix_entry {
+	S0IX_EXIT,
+	S0IX_ENTRY,
+};
+
 /**
  * Get board's Hardware features as defined in FW_CONFIG
  *
@@ -44,4 +49,6 @@ void variant_devtree_update(void);
 
 /* Modify LTE devictree settings during ramstage. */
 void update_lte_device(struct acpi_gpio *lte_reset_gpio, struct acpi_gpio *lte_enable_gpio);
+
+void variant_generate_s0ix_hook(enum s0ix_entry);
 #endif /*__BASEBOARD_VARIANTS_H__ */