[coreboot-gerrit] Change in coreboot[master]: ec/google/chromeec: Implement support for DRIVERS_ACPI_THERMAL_ZONE

[Patrick Georgi (Code Review)]

Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/54133 )

Change subject: ec/google/chromeec: Implement support for DRIVERS_ACPI_THERMAL_ZONE
......................................................................

ec/google/chromeec: Implement support for DRIVERS_ACPI_THERMAL_ZONE

This adds the required method to access temperature data from the
ChromeEC.

BUG=b:186166365
TEST=Boot guybrush to the OS and verify temperatures
$ tail /sys/devices/virtual/thermal/thermal_zone*/temp
==> /sys/devices/virtual/thermal/thermal_zone0/temp <==
31900

==> /sys/devices/virtual/thermal/thermal_zone1/temp <==
34900

==> /sys/devices/virtual/thermal/thermal_zone2/temp <==
31900

==> /sys/devices/virtual/thermal/thermal_zone3/temp <==
33900

Signed-off-by: Raul E Rangel 
Change-Id: I418b6691a7d00a4c2d89c9c1fe8f9416602be0f1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54133
Reviewed-by: Karthik Ramasubramanian 
Reviewed-by: Tim Wawrzynczak 
Tested-by: build bot (Jenkins) 
---
M src/ec/google/chromeec/acpi/cros_ec.asl
1 file changed, 7 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Karthik Ramasubramanian: Looks good to me, approved
  Tim Wawrzynczak: Looks good to me, approved

diff --git a/src/ec/google/chromeec/acpi/cros_ec.asl b/src/ec/google/chromeec/acpi/cros_ec.asl
index 66f9a0a..5a95413 100644
--- a/src/ec/google/chromeec/acpi/cros_ec.asl
+++ b/src/ec/google/chromeec/acpi/cros_ec.asl
@@ -55,4 +55,11 @@
    {
    	Return (0xB)
    }
+
+#if CONFIG(DRIVERS_ACPI_THERMAL_ZONE)
+	Method(TMP, 1)
+	{
+		Return(^^TSRD(Arg0))
+	}
+#endif
 }