Bjorn, On Fri, Jun 16, 2023 at 8:18 AM Douglas Anderson <dianders@xxxxxxxxxxxx> wrote: > > Trogdor devices use firmware backed by TF-A instead of Qualcomm's > normal TZ. On TF-A we end up mapping memory as cacheable. Specifically, > you can see in Trogdor's TF-A code [1] in qti_sip_mem_assign() that we > call qti_mmap_add_dynamic_region() with MT_RO_DATA. This translates > down to MT_MEMORY instead of MT_NON_CACHEABLE or MT_DEVICE. > > Let's allow devices like trogdor to be described properly by allowing > "dma-coherent" in the SCM node. > > Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx> > --- > > Changes in v2: > - Bindings change new for v2. > > Documentation/devicetree/bindings/firmware/qcom,scm.yaml | 2 ++ > 1 file changed, 2 insertions(+) Without this series v6.4 will have a regression where WiFi / LTE won't work at all on trogdor devices. Any chance you can send up a "Fixes" pull request with the 4 patches in it? ...or I could try to convince someone on the SoC tree to land them directly? Thanks! -Doug
