On Tue, Oct 17, 2017 at 12:33:09PM +0200, Matthias Brugger wrote:

Hi Ulrich,

On 10/16/2017 05:31 PM, Ulrich Hecht wrote:

quoted

Hi!

This is a new revision of the Acer Chromebook R13 support series. It does
not offer anything new in terms of functionality, but eliminates three out
of four ugly hacks and adds a few minor cleanups; see below for details.
Thanks to Robin Murphy and CK Hu for their comments and suggestions!

I'm still looking for advice on how to implement the dual-role mmsys device
correctly; see "hack: mediatek: get mmsys to register as both DRM and clock
device" for details on this.

Like the previous revision, you can find this series at
https://github.com/uli/kernel/tree/elm-working, which also contains a config
file and several ancillary bits that are required to build a kernel
partition for the Chromebook. Instructions on how to do so (and various
other things that have to be done to get it running on your device) are
available at
https://www.elinux.org/User:Uli/Acer_Chromebook_R13_GPU_test_system (These
instructions have been written for the vendor kernel, but apply to mainline
as well, except that you won't need any extra patches.)

I appreciate your efforts to get this done. 

Agreed, thanks for doing this work and posting it! 

From what I understand you
rebased the patches from the chromium kernel to mainline. So you should keep
the signed-off-by from the original author and just add you signed-off-by
below that.
Also it would be nice to CC these persons so that they are aware of your effort.

Additionally, make sure the author and commit messages are preserved when you send
patches. You can add your own message in addition to your SoB, but please try to
preserve history.

Sean

quoted

CU
Uli

Changes since RFC v1:
- cmdq: remove obsolete driver; not currently used anyway

Are you sure about this? I remember that Dan (CC'ed) told me that this is
one of the requirements to get upstream working.

Dan, can you clarify please?

Regards,
Matthias

quoted

- dt: remove CD GPIO from mmc1, does not seem to be correct
- mmc: remove mtk-sd.c revert hack (works fine without the CD pin)
- dsi: fix port number for drm_of_find_panel_or_bridge(), remove hack
- fbdev: add missing Signed-off-bys
- iommu: remove io-pgtable sanity check hack, has been properly fixed
- minor style fixes


Ulrich Hecht (8):
   drm/bridge: GPIO-controlled display multiplexer driver
   platform/chrome: ChromeOS firmware interface driver
   drm/bridge: Parade PS8640 MIPI DSI -> eDP converter driver
   drm/bridge: Analogix ANX7688 HDMI -> DP bridge driver
   arm64: dts: mediatek: Add Elm Rev. 3 device tree
   hack: mediatek: get mmsys to register as both DRM and clock device
   drm/mediatek: Add DRM-based framebuffer device
   drm: mediatek: Fix drm_of_find_panel_or_bridge conversion

  arch/arm64/boot/dts/mediatek/Makefile            |    1 +
  arch/arm64/boot/dts/mediatek/mt8173-elm-rev3.dts |   21 +
  arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi     |  210 ++++
  arch/arm64/boot/dts/mediatek/mt8173-oak.dtsi     | 1013 ++++++++++++++++++++
  drivers/clk/mediatek/clk-mt8173.c                |    4 +-
  drivers/gpu/drm/bridge/Kconfig                   |   32 +
  drivers/gpu/drm/bridge/Makefile                  |    5 +
  drivers/gpu/drm/bridge/analogix-anx7688.c        |  233 +++++
  drivers/gpu/drm/bridge/generic-gpio-mux.c        |  316 +++++++
  drivers/gpu/drm/bridge/parade-ps8640.c           | 1104 ++++++++++++++++++++++
  drivers/gpu/drm/mediatek/Makefile                |    2 +
  drivers/gpu/drm/mediatek/mtk_dpi.c               |    5 +-
  drivers/gpu/drm/mediatek/mtk_drm_ddp.c           |    5 +-
  drivers/gpu/drm/mediatek/mtk_drm_drv.c           |   15 +
  drivers/gpu/drm/mediatek/mtk_drm_drv.h           |    4 +-
  drivers/gpu/drm/mediatek/mtk_drm_fb.c            |   13 +
  drivers/gpu/drm/mediatek/mtk_drm_fb.h            |    3 +
  drivers/gpu/drm/mediatek/mtk_drm_fbdev.c         |  181 ++++
  drivers/gpu/drm/mediatek/mtk_drm_fbdev.h         |   32 +
  drivers/gpu/drm/mediatek/mtk_dsi.c               |    2 +-
  drivers/gpu/drm/mediatek/mtk_hdmi.c              |    5 +-
  drivers/platform/chrome/Kconfig                  |   18 +
  drivers/platform/chrome/Makefile                 |    2 +
  drivers/platform/chrome/chromeos.c               |  120 +++
  drivers/platform/chrome/chromeos.h               |   61 ++
  drivers/platform/chrome/chromeos_arm.c           |  264 ++++++
  drivers/platform/chrome/elog.h                   |  186 ++++
  include/linux/chromeos_platform.h                |   27 +
  28 files changed, 3874 insertions(+), 10 deletions(-)
  create mode 100644 arch/arm64/boot/dts/mediatek/mt8173-elm-rev3.dts
  create mode 100644 arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi
  create mode 100644 arch/arm64/boot/dts/mediatek/mt8173-oak.dtsi
  create mode 100644 drivers/gpu/drm/bridge/analogix-anx7688.c
  create mode 100644 drivers/gpu/drm/bridge/generic-gpio-mux.c
  create mode 100644 drivers/gpu/drm/bridge/parade-ps8640.c
  create mode 100644 drivers/gpu/drm/mediatek/mtk_drm_fbdev.c
  create mode 100644 drivers/gpu/drm/mediatek/mtk_drm_fbdev.h
  create mode 100644 drivers/platform/chrome/chromeos.c
  create mode 100644 drivers/platform/chrome/chromeos.h
  create mode 100644 drivers/platform/chrome/chromeos_arm.c
  create mode 100644 drivers/platform/chrome/elog.h
  create mode 100644 include/linux/chromeos_platform.h

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-- 
Sean Paul, Software Engineer, Google / Chromium OS