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ASoC: SOF: Force polling mode on CFL and CNL

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There is a workaround in legacy HDA codec for too long time respone
with CFL machine. We need the same workaround on SOF driver. The same
issue is also seen on CNL machine.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Bard Liao 2019-05-27 00:58:36 +08:00 committed by Takashi Iwai
parent 5e13cf6cd6
commit 64ca9d9fcb
1 changed files with 8 additions and 0 deletions
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8
sound/soc/sof/intel/hda.c
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@ -32,6 +32,9 @@
/* platform specific devices */ /* platform specific devices */
#include "shim.h" #include "shim.h"
#define IS_CFL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa348)
#define IS_CNL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9dc8)
/* /*
* Debug * Debug
*/ */
@ -213,6 +216,11 @@ static int hda_init(struct snd_sof_dev *sdev)
ext_ops = snd_soc_hdac_hda_get_ops(); ext_ops = snd_soc_hdac_hda_get_ops();
#endif #endif
sof_hda_bus_init(bus, &pci->dev, ext_ops); sof_hda_bus_init(bus, &pci->dev, ext_ops);
/* Workaround for a communication error on CFL (bko#199007) and CNL */
if (IS_CFL(pci) || IS_CNL(pci))
bus->polling_mode = 1;
bus->use_posbuf = 1; bus->use_posbuf = 1;
bus->bdl_pos_adj = 0; bus->bdl_pos_adj = 0;