On Thu, Sep 26, 2019 at 6:20 AM Marc Gonzalez <marc.w.gonzalez@xxxxxxx> wrote: > > [ Tweaking recipients list ] > > On 26/09/2019 10:49, Andrew Murray wrote: > > > On Tue, Sep 24, 2019 at 04:46:19PM -0500, Rob Herring wrote: > > > >> pci-rcar-gen2 is the only remaining driver doing its own dma-ranges > >> handling as it is still using the old ARM PCI functions. Looks like it > >> is the last one (in drivers/pci/). > > > > It also seems that pcie-tango is using of_pci_dma_range_parser_init > > and so parsing dma-ranges. Though it's using the dma_ranges for a > > slightly different purpose. Seems I missed that as I only grep'ed for for_each_of_pci_range... > > The rationale for that code can be found here: > > https://patchwork.kernel.org/patch/9915469/ > > NB: 1) The PCIE_TANGO_SMP8759 Kconfig symbol is marked "depends on BROKEN", > and 2) The driver adds TAINT_CRAP, > and 3) The maker of the tango platform is dead. Given that and that I'd have to rework the probe to do the MSI range setup after pci_host_common_probe, I'm just going to leave this one alone. Rob
