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>
diff --git a/src/mainboard/google/slippy/smihandler.c b/src/mainboard/google/slippy/smihandler.c
index 71e97af..7e4b271 100644
--- a/src/mainboard/google/slippy/smihandler.c
+++ b/src/mainboard/google/slippy/smihandler.c
@@ -3,7 +3,6 @@
#include <acpi/acpi.h>
#include <console/console.h>
#include <cpu/x86/smm.h>
-#include <soc/nvs.h>
#include <southbridge/intel/lynxpoint/pch.h>
#include <southbridge/intel/common/gpio.h>
#include <southbridge/intel/lynxpoint/me.h>
@@ -31,15 +30,10 @@
void mainboard_smi_sleep(u8 slp_typ)
{
/* Disable USB charging if required */
+ chromeec_set_usb_charge_mode(slp_typ);
+
switch (slp_typ) {
case ACPI_S3:
- if (gnvs->s3u0 == 0)
- google_chromeec_set_usb_charge_mode(
- 0, USB_CHARGE_MODE_DISABLED);
- if (gnvs->s3u1 == 0)
- google_chromeec_set_usb_charge_mode(
- 1, USB_CHARGE_MODE_DISABLED);
-
/* Prevent leak from standby rail to WLAN rail in S3. */
set_gpio(GPIO_WLAN_DISABLE_L, 0);
set_gpio(GPIO_PP3300_CODEC_EN, 0);
@@ -51,13 +45,6 @@
break;
case ACPI_S4:
case ACPI_S5:
- if (gnvs->s5u0 == 0)
- google_chromeec_set_usb_charge_mode(
- 0, USB_CHARGE_MODE_DISABLED);
- if (gnvs->s5u1 == 0)
- google_chromeec_set_usb_charge_mode(
- 1, USB_CHARGE_MODE_DISABLED);
-
/* Prevent leak from standby rail to WLAN rail in S5. */
set_gpio(GPIO_WLAN_DISABLE_L, 0);
set_gpio(GPIO_PP3300_CODEC_EN, 0);