Config and device tree updates for the Librem 5 development kit

This enables more components to get a working display, panel, audio and sensors. It also updates some device tree bits to make mainline boot.

I've skipped wifi (which needs some more driver work) and devfreq (since Martin is working on that).

The config changes don't depend on the DT parts so could be applied independently. The series was tested against next-20200108 and i made sure the defconfig changes also apply on top of Shawn's /imx/defconfig and the DT changes to Shawn's imx/dt64.

changes from v2:
- Add Reviewed-by from Krzysztof Kozlowski, thanks!
- Add NXP PTN5110HQZ to defconfig

changes from v1:
- as per review comments by Krzysztof Kozlowski <[email protected]>
https://lore.kernel.org/linux-arm-kernel/20201215091729.GC29321@kozik-lap/
- describe hardware parts not config options
- rework commit messages to give more details
- don't keep buck3 always on but rather make sure the board doesn't hang when resuming the gpu power domain. There's a generic fix pending for that helps all boards
https://lore.kernel.org/lkml/[email protected]/

Guido Günther (4):
arm64: defconfig: Enable Librem 5 devkit components
arm64: dts: imx8mq-librem5-devkit: Tweak pmic regulators
arm64: dts: imx8mq-librem5-devkit: Disable snvs_rtc
arm64: dts: imx8mq-librem5-devkit: Drop custom clock settings

 .../dts/freescale/imx8mq-librem5-devkit.dts   | 20 ++++++++++++++-----
 arch/arm64/configs/defconfig                  |  9 +++++++++
 2 files changed, 24 insertions(+), 5 deletions(-)

2.29.2