diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2022-12-02 15:30:10 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2023-08-16 17:55:02 +0000 |
| commit | 027f86e6af023b338a0f1d8a999a8f33eeacb010 (patch) | |
| tree | 691450089ec0116cba1ec04b1b73ca3dea39aaf5 /src/ec/google | |
| parent | 4a9de553c5307595f396b47aaa108bf1dc34638d (diff) | |
ACPI: Add usb_charge_mode_from_gnvs()
Early Chromebook generations stored the information about
USB port power control for S3/S5 sleepstates in GNVS, although
the configuration is static.
Reduce code duplication and react to ACPI S4 as if it was ACPI
S5 request.
Change-Id: I7e6f37a023b0e9317dcf0355dfa70e28d51cdad9
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74524
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Diffstat (limited to 'src/ec/google')
| -rw-r--r-- | src/ec/google/chromeec/smihandler.c | 14 | ||||
| -rw-r--r-- | src/ec/google/chromeec/smm.h | 2 |
2 files changed, 16 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/smihandler.c b/src/ec/google/chromeec/smihandler.c index b5ec3715ac..91b42319d5 100644 --- a/src/ec/google/chromeec/smihandler.c +++ b/src/ec/google/chromeec/smihandler.c @@ -1,6 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0-only */ #include <acpi/acpi.h> +#include <acpi/acpi_gnvs.h> #include <console/console.h> #include <cpu/x86/smm.h> #include <ec/google/chromeec/ec.h> @@ -45,6 +46,19 @@ static void clear_pending_events(void) ; } +void chromeec_set_usb_charge_mode(int slp_type) +{ + bool usb0_disable = 0, usb1_disable = 0; + + usb_charge_mode_from_gnvs(slp_type, &usb0_disable, &usb1_disable); + + if (usb0_disable) + google_chromeec_set_usb_charge_mode(0, USB_CHARGE_MODE_DISABLED); + + if (usb1_disable) + google_chromeec_set_usb_charge_mode(1, USB_CHARGE_MODE_DISABLED); +} + void chromeec_smi_sleep(int slp_type, uint64_t s3_mask, uint64_t s5_mask) { if (!google_chromeec_is_uhepi_supported()) { diff --git a/src/ec/google/chromeec/smm.h b/src/ec/google/chromeec/smm.h index 6f209a7061..895782d0d6 100644 --- a/src/ec/google/chromeec/smm.h +++ b/src/ec/google/chromeec/smm.h @@ -8,6 +8,8 @@ /* Process all events from the EC when EC triggered an SMI#. */ void chromeec_smi_process_events(void); +void chromeec_set_usb_charge_mode(int slp_type); + /* * Set wake masks according to sleep type, clear SCI and SMI masks, * and clear any pending events. |