[S] Change in coreboot[master]: mb/intel/adlrvp: Enable RTD3 root port mutex for WWAN

[Felix Held (Code Review)]

Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/73383 )

Change subject: mb/intel/adlrvp: Enable RTD3 root port mutex for WWAN
......................................................................

mb/intel/adlrvp: Enable RTD3 root port mutex for WWAN

This adds RTD3 RPMX mutex to the root port. It is shared between RTD3
and WWAN. The purpose of using this mutex is to prevent OSPM from
calling _ON and _OFF methods while WWAN kernel driver is calling _RST,
which accesses the GPIO pins.

BUG=NA
BRANCH=firmware-brya-14505.B
TEST=boot to OS and check the generated SSDT table for the root port.
The RPMX mutex should be generated under the root port.

Signed-off-by: Cliff Huang 
Change-Id: I809eb84cb1a09deb168040e83041b65237a1b576
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73383
Reviewed-by: Jérémy Compostella 
Tested-by: build bot (Jenkins) 
Reviewed-by: Bora Guvendik 
---
M src/mainboard/intel/adlrvp/variants/adlrvp_p_ext_ec/overridetree.cb
M src/mainboard/intel/adlrvp/variants/adlrvp_rpl_ext_ec/overridetree.cb
2 files changed, 26 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Bora Guvendik: Looks good to me, approved
  Jérémy Compostella: Looks good to me, but someone else must approve

diff --git a/src/mainboard/intel/adlrvp/variants/adlrvp_p_ext_ec/overridetree.cb b/src/mainboard/intel/adlrvp/variants/adlrvp_p_ext_ec/overridetree.cb
index 544f9e2..fc4c11c 100644
--- a/src/mainboard/intel/adlrvp/variants/adlrvp_p_ext_ec/overridetree.cb
+++ b/src/mainboard/intel/adlrvp/variants/adlrvp_p_ext_ec/overridetree.cb
@@ -70,6 +70,7 @@
    			register "srcclk_pin" = "5"
    			register "ext_pm_support" = "ACPI_PCIE_RP_EMIT_ALL"
    			register "skip_on_off_support" = "true"
+				register "use_rp_mutex" = "true"
    			device generic 0 alias rp6_rtd3 on
    			end
    		end
diff --git a/src/mainboard/intel/adlrvp/variants/adlrvp_rpl_ext_ec/overridetree.cb b/src/mainboard/intel/adlrvp/variants/adlrvp_rpl_ext_ec/overridetree.cb
index 544f9e2..fc4c11c 100644
--- a/src/mainboard/intel/adlrvp/variants/adlrvp_rpl_ext_ec/overridetree.cb
+++ b/src/mainboard/intel/adlrvp/variants/adlrvp_rpl_ext_ec/overridetree.cb
@@ -70,6 +70,7 @@
    			register "srcclk_pin" = "5"
    			register "ext_pm_support" = "ACPI_PCIE_RP_EMIT_ALL"
    			register "skip_on_off_support" = "true"
+				register "use_rp_mutex" = "true"
    			device generic 0 alias rp6_rtd3 on
    			end
    		end