[S] Change in coreboot[master]: mb/google/rex/var/karis: add hook for WiFi SAR table

[YH Lin (Code Review)]

YH Lin has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/78181?usp=email )

Change subject: mb/google/rex/var/karis: add hook for WiFi SAR table
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mb/google/rex/var/karis: add hook for WiFi SAR table

In preparation for WiFi SAR table addition by adding hook for it.

BUG=b:290689824
TEST=emerge-rex coreboot

Change-Id: Ic989024ab9eb0fc439fc701c335a85986c4cfec5
Signed-off-by: YH Lin 
---
M src/mainboard/google/rex/Kconfig
M src/mainboard/google/rex/variants/karis/Makefile.inc
A src/mainboard/google/rex/variants/karis/variant.c
3 files changed, 13 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/81/78181/1

diff --git a/src/mainboard/google/rex/Kconfig b/src/mainboard/google/rex/Kconfig
index e2c730e..2a540d6 100644
--- a/src/mainboard/google/rex/Kconfig
+++ b/src/mainboard/google/rex/Kconfig
@@ -45,11 +45,11 @@
    select SOC_INTEL_ENABLE_USB4_PCIE_RESOURCES
    select SYSTEM_TYPE_LAPTOP
    select TPM_GOOGLE_TI50
+	select CHROMEOS_WIFI_SAR if CHROMEOS

config BOARD_GOOGLE_MODEL_REX
    def_bool n
    select BOARD_GOOGLE_BASEBOARD_REX
-	select CHROMEOS_WIFI_SAR if CHROMEOS
    select DRIVERS_GENERIC_MAX98357A
    select DRIVERS_GENESYSLOGIC_GL9755
    select DRIVERS_I2C_SX9324
@@ -68,7 +68,6 @@
 config BOARD_GOOGLE_MODEL_SCREEBO
    def_bool n
    select BOARD_GOOGLE_BASEBOARD_REX
-	select CHROMEOS_WIFI_SAR if CHROMEOS
    select DRIVERS_GENERIC_ALC1015
    select DRIVERS_GENESYSLOGIC_GL9750
    select DRIVERS_GENESYSLOGIC_GL9750_INVERT_WP
diff --git a/src/mainboard/google/rex/variants/karis/Makefile.inc b/src/mainboard/google/rex/variants/karis/Makefile.inc
index 2638540..5595937 100644
--- a/src/mainboard/google/rex/variants/karis/Makefile.inc
+++ b/src/mainboard/google/rex/variants/karis/Makefile.inc
@@ -4,3 +4,4 @@
 romstage-y += gpio.c
 ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
 ramstage-y += gpio.c
+ramstage-y += variant.c
diff --git a/src/mainboard/google/rex/variants/karis/variant.c b/src/mainboard/google/rex/variants/karis/variant.c
new file mode 100644
index 0000000..27bfbb3
--- /dev/null
+++ b/src/mainboard/google/rex/variants/karis/variant.c
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <chip.h>
+#include <fw_config.h>
+#include <baseboard/variants.h>
+#include <sar.h>
+
+const char *get_wifi_sar_cbfs_filename(void)
+{
+	return get_wifi_sar_fw_config_filename(FW_CONFIG_FIELD(WIFI_TYPE));
+}