| Message ID | 1570216148-22802-1-git-send-email-uli@fpond.eu (mailing list archive) |
|---|---|
| Headers | show |
| Series | PS8640 MIPI-to-eDP bridge | expand |
Hi Uli, On 04/10/2019 21:09, Ulrich Hecht wrote: > Hi! > > This driver seems to have fallen by the wayside because, while otherwise > fine, it has a firmware update feature that requires a blob that is not in > the linux-firmware repo.[1] > > Whatever the cause for that may be, the update code is entirely optional > (my chip works fine with whatever firmware is currently installed), so I > have removed it in order to get this merged after all. I have also > followed various trivial API changes that have piled up since 2016; see > the individual patches for details. > > I'm using this driver on an Acer Chromebook R13 ("Elm"); see > https://github.com/uli/kernel/tree/elm-working-5.4. > Thanks for your effort to get things upstream. I just tried your branch on my R13. I had to do a trivial config change I had to do, as I don't have and care about the bluetooth FW right now. But after that my screen keeps black. I was able to build and boot elm-working-5.3 and elm-working-5.2. Unfortunatley I don't have a serial console on the Chromebook, so it's difficult to find out where it hangs. Can you please double check if your new elm-working-5.4 actually really works? Thanks, Matthias > CU > Uli > > [1] https://patchwork.kernel.org/patch/9427543/ > > Jitao Shi (2): > Documentation: bridge: Add documentation for ps8640 DT properties > drm/bridge: Add I2C based driver for ps8640 bridge > > .../devicetree/bindings/display/bridge/ps8640.txt | 44 ++ > drivers/gpu/drm/bridge/Kconfig | 12 + > drivers/gpu/drm/bridge/Makefile | 1 + > drivers/gpu/drm/bridge/parade-ps8640.c | 672 +++++++++++++++++++++ > 4 files changed, 729 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/bridge/ps8640.txt > create mode 100644 drivers/gpu/drm/bridge/parade-ps8640.c >
> On October 5, 2019 at 1:16 PM Matthias Brugger <matthias.bgg@gmail.com> wrote: > > > Hi Uli, > > On 04/10/2019 21:09, Ulrich Hecht wrote: > > Hi! > > > > This driver seems to have fallen by the wayside because, while otherwise > > fine, it has a firmware update feature that requires a blob that is not in > > the linux-firmware repo.[1] > > > > Whatever the cause for that may be, the update code is entirely optional > > (my chip works fine with whatever firmware is currently installed), so I > > have removed it in order to get this merged after all. I have also > > followed various trivial API changes that have piled up since 2016; see > > the individual patches for details. > > > > I'm using this driver on an Acer Chromebook R13 ("Elm"); see > > https://github.com/uli/kernel/tree/elm-working-5.4. > > > > Thanks for your effort to get things upstream. > I just tried your branch on my R13. I had to do a trivial config change I had to > do, as I don't have and care about the bluetooth FW right now. Thank you for testing! > But after that my screen keeps black. I was able to build and boot > elm-working-5.3 and elm-working-5.2. > > Unfortunatley I don't have a serial console on the Chromebook, so it's difficult > to find out where it hangs. Can you please double check if your new > elm-working-5.4 actually really works? No, it doesn't. :( It seems I forgot to run mkimage/vbutil_kernel when testing... I have pushed a fix to the elm-working-5.4 tree, and I will send a v20 tomorrow. Sorry for the inconvenience. CU Uli
Hi! This driver seems to have fallen by the wayside because, while otherwise fine, it has a firmware update feature that requires a blob that is not in the linux-firmware repo.[1] Whatever the cause for that may be, the update code is entirely optional (my chip works fine with whatever firmware is currently installed), so I have removed it in order to get this merged after all. I have also followed various trivial API changes that have piled up since 2016; see the individual patches for details. I'm using this driver on an Acer Chromebook R13 ("Elm"); see https://github.com/uli/kernel/tree/elm-working-5.4. CU Uli [1] https://patchwork.kernel.org/patch/9427543/ Jitao Shi (2): Documentation: bridge: Add documentation for ps8640 DT properties drm/bridge: Add I2C based driver for ps8640 bridge .../devicetree/bindings/display/bridge/ps8640.txt | 44 ++ drivers/gpu/drm/bridge/Kconfig | 12 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/parade-ps8640.c | 672 +++++++++++++++++++++ 4 files changed, 729 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/ps8640.txt create mode 100644 drivers/gpu/drm/bridge/parade-ps8640.c