Change in coreboot[master]: mb/google/dedede: Add a variant callback to update devicetree config

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/52887 )

Change subject: mb/google/dedede: Add a variant callback to update devicetree config
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mb/google/dedede: Add a variant callback to update devicetree config

This callback is required to update the devicetree config at run-time
after probing the firmware config.

BUG=b:186380807
BRANCH=dedede
TEST=Build and boot to OS in metaknight.

Change-Id: I857211bfc4beb36ab225f3786c1707336a34aae9
Signed-off-by: David Wu 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52887
Tested-by: build bot (Jenkins) 
Reviewed-by: Evan Green 
Reviewed-by: Raymond Wong 
---
M src/mainboard/google/dedede/mainboard.c
M src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
2 files changed, 10 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Evan Green: Looks good to me, approved
  Raymond Wong: Looks good to me, but someone else must approve

diff --git a/src/mainboard/google/dedede/mainboard.c b/src/mainboard/google/dedede/mainboard.c
index 26afb69..6d544b5 100644
--- a/src/mainboard/google/dedede/mainboard.c
+++ b/src/mainboard/google/dedede/mainboard.c
@@ -40,10 +40,17 @@
    gpio_configure_pads_with_override(base_pads, base_num,
    	override_pads, override_num);

+	variant_devtree_update();
+
    if (CONFIG(BOARD_GOOGLE_BASEBOARD_DEDEDE_CR50))
    	mainboard_update_soc_chip_config();
 }

+void __weak variant_devtree_update(void)
+{
+	/* Override dev tree settings per board */
+}
+
 static void mainboard_dev_init(struct device *dev)
 {
    mainboard_ec_init();
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 e7bfd86..a3dcd91 100644
--- a/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
@@ -39,4 +39,7 @@
 /* Allow each variants to customize SMI sleep flow. */
 void variant_smi_sleep(u8 slp_typ);

+/* Modify devictree settings during ramstage. */
+void variant_devtree_update(void);
+
 #endif /*__BASEBOARD_VARIANTS_H__ */