Change in coreboot[master]: mb/google/dedede: Add support for variant specific SMI sleep flow

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/44587 )

Change subject: mb/google/dedede: Add support for variant specific SMI sleep flow
......................................................................

mb/google/dedede: Add support for variant specific SMI sleep flow

This support is required to power off certain components that exist only
in certain variants.

BUG=None
TEST=Build and boot Boten to OS.

Change-Id: Ib43ada784666919a4d26246a683dad7f3546fabb
Signed-off-by: Karthikeyan Ramasubramanian 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44587
Tested-by: build bot (Jenkins) 
Reviewed-by: Peichao Wang 
Reviewed-by: Marco Chen 
Reviewed-by: Furquan Shaikh 
---
M src/mainboard/google/dedede/smihandler.c
M src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
2 files changed, 9 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Furquan Shaikh: Looks good to me, approved
  Marco Chen: Looks good to me, approved
  Peichao Wang: Looks good to me, approved

diff --git a/src/mainboard/google/dedede/smihandler.c b/src/mainboard/google/dedede/smihandler.c
index 20f0207..c50578d 100644
--- a/src/mainboard/google/dedede/smihandler.c
+++ b/src/mainboard/google/dedede/smihandler.c
@@ -21,6 +21,8 @@
    pads = variant_sleep_gpio_table(&num);
    gpio_configure_pads(pads, num);

+	variant_smi_sleep(slp_typ);
+
    chromeec_smi_sleep(slp_typ, MAINBOARD_EC_S3_WAKE_EVENTS,
    			MAINBOARD_EC_S5_WAKE_EVENTS);
 }
@@ -41,3 +43,7 @@
 {
    chromeec_smi_process_events();
 }
+
+void __weak variant_smi_sleep(u8 slp_typ)
+{
+}
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 bb41e45..e7bfd86 100644
--- a/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
@@ -36,4 +36,7 @@
  */
 bool variant_mem_is_half_populated(void);

+/* Allow each variants to customize SMI sleep flow. */
+void variant_smi_sleep(u8 slp_typ);
+
 #endif /*__BASEBOARD_VARIANTS_H__ */