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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 <rrangel@chromium.org>
Change-Id: I418b6691a7d00a4c2d89c9c1fe8f9416602be0f1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54133
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Raul E Rangel 2021-05-12 17:05:37 -06:00 committed by Patrick Georgi
parent 9bf32b9701
commit cecadfd42a
1 changed files with 7 additions and 0 deletions
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7
src/ec/google/chromeec/acpi/cros_ec.asl
View File

@ -55,4 +55,11 @@ Device (CREC)
{ {
Return (0xB) Return (0xB)
} }
#if CONFIG(DRIVERS_ACPI_THERMAL_ZONE)
Method(TMP, 1)
{
Return(^^TSRD(Arg0))
}
#endif
} }