diff options
| author | Michał Kopeć <michal.kopec@3mdeb.com> | 2022-05-02 10:24:41 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-05-03 19:33:13 +0000 |
| commit | 86221c63aefeec10571a4698e74737af80c0539f (patch) | |
| tree | fc0218b5462784b006425728d3fbe0b7db61466e | |
| parent | 2b87b506bcae63b383b7ff75dc5c3e3cc856e8da (diff) | |
intelblocks/pep: Handle TBT displays on s0ix transition
Notify IOM to enable or disable TBT displays on S0ix exit and entry
respectively.
Change-Id: I9f49d8e30fe8e8b335128e53d71ef902328f031a
Signed-off-by: Michał Kopeć <michal.kopec@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63980
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Krystian Hebel <krystian.hebel@3mdeb.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
| -rw-r--r-- | src/soc/intel/common/block/acpi/pep.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/acpi/pep.c b/src/soc/intel/common/block/acpi/pep.c index 139943865f..8028b8147c 100644 --- a/src/soc/intel/common/block/acpi/pep.c +++ b/src/soc/intel/common/block/acpi/pep.c @@ -17,6 +17,8 @@ #define MAINBOARD_DISPLAY_HOOK "\\_SB.MDSX" #define ENABLE_PM_BITS_HOOK "\\_SB.PCI0.EGPM" #define RESTORE_PM_BITS_HOOK "\\_SB.PCI0.RGPM" +#define THUNDERBOLT_DEVICE "\\_SB.PCI0.TXHC" +#define THUNDERBOLT_IOM_DPOF "\\_SB.PCI0.DPOF" #define LPI_STATES_ALL 0xff #define MIN_DEVICE_STATE ACPI_DEVICE_SLEEP_D0 #define PEPD_SCOPE "\\_SB.PCI0" @@ -129,6 +131,11 @@ static void lpi_s0ix_entry(void *unused) acpigen_write_if_cond_ref_of(ENABLE_PM_BITS_HOOK); acpigen_emit_namestring(ENABLE_PM_BITS_HOOK); acpigen_write_if_end(); + + /* Handle Thunderbolt displays */ + acpigen_write_if_cond_ref_of(THUNDERBOLT_DEVICE); + acpigen_write_store_int_to_namestr(1, THUNDERBOLT_IOM_DPOF); + acpigen_write_if_end(); } static void lpi_s0ix_exit(void *unused) @@ -149,6 +156,11 @@ static void lpi_s0ix_exit(void *unused) acpigen_write_if_cond_ref_of(RESTORE_PM_BITS_HOOK); acpigen_emit_namestring(RESTORE_PM_BITS_HOOK); acpigen_write_if_end(); + + /* Handle Thunderbolt displays */ + acpigen_write_if_cond_ref_of(THUNDERBOLT_DEVICE); + acpigen_write_store_int_to_namestr(0, THUNDERBOLT_IOM_DPOF); + acpigen_write_if_end(); } static void lpi_display_on(void *unused) |