ASoC: intel: skylake: Set max DMA segment size

The recent code refactoring to use the standard DMA helper requires
the max DMA segment size setup for SG list management.  Without it,
the kernel may spew warnings when a large buffer is allocated.

This patch sets up dma_set_max_seg_size() for avoiding spurious
warnings.

Fixes: 2c95b92ecd92 ("ALSA: memalloc: Unify x86 SG-buffer handling (take#3)")
Acked-by: Cezary Rojewski <[email protected]>
Acked-by: Mark Brown <[email protected]>
Cc: <[email protected]>
BugLink: https://github.com/thesofproject/linux/issues/3430
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>

diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c
index 148ddf4cace0d578945bf328371f99af23b0b288..aeca58246fc77b03c4e3d21e539dc451da73c1d2 100644 (file)
--- a/sound/soc/intel/skylake/skl.c
+++ b/sound/soc/intel/skylake/skl.c
@@ -952,6 +952,7 @@ static int skl_first_init(struct hdac_bus *bus)
        /* allow 64bit DMA address if supported by H/W */
        if (dma_set_mask_and_coherent(bus->dev, DMA_BIT_MASK(64)))
                dma_set_mask_and_coherent(bus->dev, DMA_BIT_MASK(32));
+       dma_set_max_seg_size(bus->dev, UINT_MAX);
 
        /* initialize streams */
        snd_hdac_ext_stream_init_all