We observed the same issue as reported by commit a8d7bde23e7130686b7662 ("ALSA: hda - Force polling mode on CFL for fixing codec communication") Apply the same fix to CML.
Signed-off-by: Sathyanarayana Nujella sathyanarayana.nujella@intel.com Signed-off-by: Joyce Toh joyce.toh@intel.com --- sound/pci/hda/hda_intel.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 91e71be42fa4..e6997a5bf098 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -370,6 +370,7 @@ enum { #define IS_BXT(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x5a98) #define IS_CFL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0xa348) #define IS_CNL(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x9dc8) +#define IS_CML(pci) ((pci)->vendor == 0x8086 && (pci)->device == 0x02c8)
static char *driver_short_names[] = { [AZX_DRIVER_ICH] = "HDA Intel", @@ -1754,7 +1755,7 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci, azx_bus(chip)->dma_type = SNDRV_DMA_TYPE_DEV_UC;
/* Workaround for a communication error on CFL (bko#199007) and CNL */ - if (IS_CFL(pci) || IS_CNL(pci)) + if (IS_CFL(pci) || IS_CNL(pci) || IS_CML(pci)) azx_bus(chip)->polling_mode = 1;
if (chip->driver_type == AZX_DRIVER_NVIDIA) {