diff options
| author | Patrick Rudolph <siro@das-labor.org> | 2018-07-29 10:53:01 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2018-08-04 00:23:09 +0000 |
| commit | 6838aaebf9ec836a13d57bd85bc0e7e396834e8b (patch) | |
| tree | 0e63c0aa820c482ab7a64026b0e10182742cfcfa /src/drivers/intel/gma/acpi/pch.asl | |
| parent | bce49c2304adba31264c68daecdb5a41a3faf3a0 (diff) | |
drvs/intel/gma/acpi: Add methods to use MBOX3
* Add Mailbox 3 driver
* Request brightness change through Mailbox 3
* Return Ones on error or if unsupported
* Mark existing code as legacy
(still required if no GMA driver is running)
* Call legacy code if Mailbox 3 is unsupported, on error or
if gma driver isn't running
Tested on Lenovo T430:
* Brightness control still works
* Brightness is the same on S3 resume
Change-Id: I51554c819148336b204d28972cbf775a10c3fb8a
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/27711
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Nathaniel Roach <nroach44@gmail.com>
Reviewed-by: Nicola Corna <nicola@corna.info>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src/drivers/intel/gma/acpi/pch.asl')
| -rw-r--r-- | src/drivers/intel/gma/acpi/pch.asl | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/drivers/intel/gma/acpi/pch.asl b/src/drivers/intel/gma/acpi/pch.asl index 31911965cd..b7bb324b60 100644 --- a/src/drivers/intel/gma/acpi/pch.asl +++ b/src/drivers/intel/gma/acpi/pch.asl @@ -22,7 +22,11 @@ Device (GFX0) Field (GFXC, DWordAcc, NoLock, Preserve) { Offset (0x10), - BAR0, 64 + BAR0, 64, + Offset (0xe4), + ASLE, 32, + Offset (0xfc), + ASLS, 32, } OperationRegion (GFRG, SystemMemory, And (BAR0, 0xfffffffffffffff0), 0x400000) |