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 <cezary.rojewski@intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Cc: <stable@vger.kernel.org>
BugLink: https://github.com/thesofproject/linux/issues/3430
Link: https://lore.kernel.org/r/20220215132756.31236-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c
index 148ddf4..aeca582 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