On Thu, 05 Sep 2019, Peter Rosin wrote: > On 2019-09-05 15:49, Wolfram Sang wrote: > > Hi Lee, > > > > I understand you are in a hurry, but please double check before > > sending... > > Linus indicated that an rc8 is coming up, which should provide an extra week. > https://lwn.net/Articles/798152/ That is good news. > > On Thu, Sep 05, 2019 at 11:22:47AM +0100, Lee Jones wrote: > >> We have a production-level laptop (Lenovo Yoga C630) which is exhibiting > >> a rather horrific bug. When I2C HID devices are being scanned for at > >> boot-time the QCom Geni based I2C (Serial Engine) attempts to use DMA. > >> When it does, the laptop reboots and the user never sees the OS. > >> > >> The beautiful thing about this approach is that, *if* the Geni SE DMA > >> ever starts working, we can remove the C code and any old properties > >> left in older DTs just become NOOP. Older kernels with newer DTs (less > >> of a priority) *still* will not work - but they do not work now anyway. > > > > ... becasue this paragraph doesn't fit anymore. Needs to be reworded. Yes, you're right. I noticed almost the moment I pressed send. :( > >> Fixes: 8bc529b25354 ("soc: qcom: geni: Add support for ACPI") > > > > As said in the other thread, I don't get it, but this is not a show > > stopper for me. Ah wait. Yes, this is applied against the wrong patch. Please ignore. > WAG: because ACPI made some driver load at all, and when it > did it something started happening which crashed some machines. I'm not sure I understand this sentence. ... resending now. -- Lee Jones [李琼斯] Linaro Services Technical Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog
