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