[coreboot-gerrit] Change in coreboot[master]: mb/google/guybrush/guybrush: Add variant to disable HDMI

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/61314 )

Change subject: mb/google/guybrush/guybrush: Add variant to disable HDMI
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mb/google/guybrush/guybrush: Add variant to disable HDMI

For one specific type of APU, it doesn't have HDMI. When we detect
this APU, we need to explicitly disable HDMI in DDI settings,
otherwise the system would freeze.

Please refer
 src/mainboard/google/guybrush/variants/dewatt/variant.c

BUG=b:215432928

Change-Id: I93fca8cf9870533da1bcca5fa28ff22085e65beb
Signed-off-by: Zheng Bao 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61314
Tested-by: build bot (Jenkins) 
Reviewed-by: Felix Held 
---
M src/mainboard/google/guybrush/variants/guybrush/variant.c
1 file changed, 7 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Felix Held: Looks good to me, approved

diff --git a/src/mainboard/google/guybrush/variants/guybrush/variant.c b/src/mainboard/google/guybrush/variants/guybrush/variant.c
index 54ca6a0..974e357 100644
--- a/src/mainboard/google/guybrush/variants/guybrush/variant.c
+++ b/src/mainboard/google/guybrush/variants/guybrush/variant.c
@@ -4,6 +4,7 @@
 #include <boardid.h>
 #include <device/device.h>
 #include <soc/gpio.h>
+#include <amdblocks/cpu.h>

bool variant_has_pcie_wwan(void)
 {
@@ -14,3 +15,9 @@
 {
    return board_id() == 1 ? GPIO_70 : GPIO_69;
 }
+
+void variant_update_ddi_descriptors(fsp_ddi_descriptor *ddi_descriptors)
+{
+	if ((get_cpu_count() == 4 && get_threads_per_core() == 2) || get_cpu_count() == 2)
+		ddi_descriptors[1].connector_type = DDI_UNUSED_TYPE;
+}