[coreboot-gerrit] Patch merged into coreboot/master: rockchip/rk3399: Add pwm_regulator.c for pwm then ramp boot up cpu

[gerrit at coreboot.org]

the following patch was just integrated into master:
commit 61e6c4448c4d79035842434fb1eb3b4e9cd01c6d
Author: Eric Gao <eric.gao at rock-chips.com>
Date:   Fri Jul 29 12:34:32 2016 +0800

    rockchip/rk3399: Add pwm_regulator.c for pwm then ramp boot up cpu
    
    Before, we calculate the pwm duties for cpu cores and centerlogic by
    hand, adding pwm_regulator.c to handle this. The default pwm design
    min/max voltage may be different between revs.
    
    With the pwm regulator, this patch changes the little cpu frequency from
    600M to 1512M, and raises CPU voltage to 1.2V correspondingly.
    
    This also means we decide to drop the ES1 because it may fail to
    bootup with 1.5G ~ 1.2v.
    
    BRANCH=none
    BUG=chrome-os-partner:54376,chrome-os-partner:54862
    TEST=Bootup on kevin board
    
    Change-Id: Id04c176bddfb9cdf3d25b65736e40249a85f6aa1
    Signed-off-by: Martin Roth <martinroth at chromium.org>
    Original-Commit-Id: ee4365c787ec523b7ee1028ea100dcfbb331b3a9
    Original-Change-Id: Ide75bbd92d1cbb14f934baeec0e38862bc08402b
    Original-Signed-off-by: Eric Gao <eric.gao at rock-chips.com>
    Original-Signed-off-by: Shunqian Zheng <zhengsq at rock-chips.com>
    Original-Reviewed-on: https://chromium-review.googlesource.com/364410
    Original-Reviewed-by: Julius Werner <jwerner at chromium.org>
    Reviewed-on: https://review.coreboot.org/16368
    Tested-by: build bot (Jenkins)
    Reviewed-by: Aaron Durbin <adurbin at chromium.org>


See https://review.coreboot.org/16368 for details.

-gerrit