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[U-Boot,0/4] rk3399: puma: Enable PWM regulator for Puma.

Message ID 20181206112542.20143-1-christoph.muellner@theobroma-systems.com
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Series rk3399: puma: Enable PWM regulator for Puma. | expand

Message

Christoph Muellner Dec. 6, 2018, 11:25 a.m. UTC 
This patch series allows to tune VDD_LOG on RK3399-Q7 Puma boards
using a PWM adjustable regulator.

The effect of the series is, that VDD_LOG will be set to about 950 mV
on Puma. This is required to address stability issues on Puma.

Christoph Muellner (4):
  rockchip: rk3399-puma: Cleanup vdd_log node in puma DTSI.
  power: regulator: Allow PWM regulator to be omitted from SPL.
  rockchip: defconfig: puma-rk3399: enable PWM regulator
  rockchip: puma-rk3399: Enable vdd-log during bootup.

 arch/arm/dts/rk3399-puma.dtsi                     |  5 +--
 board/theobroma-systems/puma_rk3399/puma-rk3399.c | 43 +++++++++++++++++++++++
 configs/puma-rk3399_defconfig                     |  1 +
 drivers/power/regulator/Kconfig                   |  7 ++++
 drivers/power/regulator/Makefile                  |  2 +-
 5 files changed, 53 insertions(+), 5 deletions(-)