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I'd like you to reexamine a change. Please visit
https://review.coreboot.org/20794
to look at the new patch set (#2).
Change subject: mb/lenovo/t*00/romstage: Switch to new hybrid driver ......................................................................
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. The Nvidia GPU can be handled by the generic PCI driver and allows to use the _ROM generator for Switchable graphics.
3. Settings are stored in devicetree. One driver for all Lenovo hybrid graphics capable devices.
Needs test on all devices.
Change-Id: Ibf18b75e8afe2568de8498b39a608dac8db3ba73 Signed-off-by: Patrick Rudolph siro@das-labor.org --- M src/drivers/lenovo/Kconfig M src/drivers/lenovo/Makefile.inc D src/drivers/lenovo/hybrid_graphics.c M src/mainboard/lenovo/t420/devicetree.cb M src/mainboard/lenovo/t420/romstage.c M src/mainboard/lenovo/t420s/devicetree.cb M src/mainboard/lenovo/t420s/romstage.c M src/mainboard/lenovo/t430/devicetree.cb M src/mainboard/lenovo/t430/romstage.c M src/mainboard/lenovo/t520/devicetree.cb M src/mainboard/lenovo/t520/romstage.c M src/mainboard/lenovo/t530/devicetree.cb M src/mainboard/lenovo/t530/romstage.c 13 files changed, 195 insertions(+), 131 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/94/20794/2