|
Add GPIO driving functions to adjust pin driving.
The value of drive strength is different for each SoC, so we define
GPIO_DRV0 to GPIO_DRV7 which are corresponding to 2/4/6/8/10/12/14/16mA
in MT8186.
This implementation is according to chapter 5.1 in MT8186 Functional
Specification.
BUG=b:218775654, b:216462313, b:212375511
TEST=build pass
Signed-off-by: Guodong Liu <guodong.liu@mediatek.corp-partner.google.com>
Change-Id: I6d987f28be98b515fa5c542222bda08bea1d5118
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62471
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
|