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| author | Patrick Rudolph <siro@das-labor.org> | 2017-07-27 18:00:59 +0200 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2017-08-10 16:06:26 +0000 |
| commit | db27e3384a596aad4e33abf535a72d42f7aab1e8 (patch) | |
| tree | 192c93964e2114fa742bd0d9be64363de1dfae22 /src/drivers/lenovo/Kconfig | |
| parent | 24680d0902f70d3b63f8d7b11f47ffac73697d94 (diff) | |
| download | coreboot-db27e3384a596aad4e33abf535a72d42f7aab1e8.tar.xz | |
mb/lenovo/t*00/romstage: Switch to new hybrid driver
Get rid of old hybrid graphics driver and use the new one.
1. Disable IGD and PEG in early romstage.
The PEG port will get disabled on devices that do not have a
discrete GPU. The power savings are around ~1Watt.
The disabled IGD does no longer waste GFX stolen memory.
2. Get rid of PCI driver
The Nvidia GPU can be handled by the generic PCI driver and allows
to use the ACPI _ROM generator for Switchable graphics.
3. Settings are stored in devicetree.
One driver for all Lenovo hybrid graphics capable devices.
4. Add support for Thinker1 GPU power handling.
Only boards that do use reference design 2012 are known to be
supported. Needs test on boards that do you use reference design 2013.
Should reduce idle power consumption when using IGD by ~5Watt.
Tested on Lenovo T430 without DGPU. PEG port is disabled.
Needs test on all devices.
Change-Id: Ibf18b75e8afe2568de8498b39a608dac8db3ba73
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/20794
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/drivers/lenovo/Kconfig')
| -rw-r--r-- | src/drivers/lenovo/Kconfig | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/src/drivers/lenovo/Kconfig b/src/drivers/lenovo/Kconfig index 38b86da3aa..f20f3b2229 100644 --- a/src/drivers/lenovo/Kconfig +++ b/src/drivers/lenovo/Kconfig @@ -27,15 +27,3 @@ config DIGITIZER_ABSENT endchoice endif - -config DRIVERS_LENOVO_HYBRID_GRAPHICS - bool - default n - -config HYBRID_GRAPHICS_GPIO_NUM - depends on DRIVERS_LENOVO_HYBRID_GRAPHICS - int - default 52 - help - Set a default GPIO that sets the panel LVDS signal routing to - integrated or discrete GPU. |