On Tue, 26 Feb 2019 at 21:25, Nicolin Chen <nicoleotsuka@xxxxxxxxx> wrote: > > This reverts commit d222e42e88168fd67e6d131984b86477af1fc256. > > The original change breaks omap dss: > omapdss_dispc 58001000.dispc: > dispc_errata_i734_wa_init: dma_alloc_writecombine failed > > Let's revert it first and then find a safer solution instead. > > Reported-by: Tony Lindgren <tony@xxxxxxxxxxx> > Signed-off-by: Nicolin Chen <nicoleotsuka@xxxxxxxxx> > --- > Tony, > > Would you please test and verify? Thanks! > > kernel/dma/contiguous.c | 22 +++------------------- > 1 file changed, 3 insertions(+), 19 deletions(-) This fixes broken (since yesterday) linux-next on Exynos boards (ARMv7), errors like: dma-pl330: probe of 121a0000.pdma failed with error -12 exynos-ehci 12110000.usb: can't setup: -12 exynos-ehci 12110000.usb: USB bus 1 deregistered exynos-ehci 12110000.usb: Failed to add USB HCD Tested-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> Best regards, Krzysztof
