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path: root/src/mainboard/lenovo/t440p/devicetree.cb
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2020-03-29drivers/intel/gma/acpi: Provide default definition for displaysNico Huber
Use it wherever the standard numbers were copied to. Bit 31 is set at runtime unconditionally, so we don't need it here. Change-Id: I0d853c3b8250a2c7b2d1a91985a555e4b17ad76c Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39731 Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-03-29nb/intel/haswell: Implement proper backlight PWM configNico Huber
Further backport the backlight-PWM handling from Skylake. Beside configuring the PWM frequency in Hz, we also use the PCH's logic for the brightness setting via BLM_PCH_OVERRIDE_ENABLE. Linux would toggle it anyway and that might confuse our ASL code. We assume that the 183Hz value that was set before for Slippy variants was overridden by Linux with the 200Hz VBT value, like it was for the Broadwell Chromebooks. So we set 200Hz for them in the devicetrees. The calculated value for the T440p of 220Hz seems sane and also matches the VBT. Change-Id: I17dfe1a3610d5e2918c617cf5d10896692fdccb3 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39769 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-03-07mb/lenovo/*/devicetree: Declare device in one line if possiblePeter Lemenkov
Change-Id: I708281f7861110e4abc02948c74affad9fa37053 Signed-off-by: Peter Lemenkov <lemenkov@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38732 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
2020-02-03lenovo/t440p: fix keyboard backlightIru Cai
It is found that keyboard backlight in T440p is enabled by clearing bit 3 of EC RAM 0x01. This patch sets has_keyboard_backlight in devicetree.cb and also corrects the CMOS configuration. Change-Id: Ib4c2b1591d26e2bb33f9549e3933efe9a6e0b043 Signed-off-by: Iru Cai <mytbk920423@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38650 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Dennis Witzig <dennis@wtzg.de> Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
2019-10-30mainboard: Add Lenovo ThinkPad T440pIru Cai
The code is based on autoport. This port is tested on a T440p without a dGPU and can boot Arch Linux from SATA disk with SeaBIOS payload. The tested components and issues are in the documentation. Change-Id: I56a6b94197789a83731d8b349b8ba6814bf57ca2 Signed-off-by: Iru Cai <mytbk920423@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34359 Reviewed-by: Patrick Rudolph <siro@das-labor.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>