[alsa-devel] [PATCH] ALSA: hda - Force polling mode on CML for fixing codec communication

[Sathyanarayana Nujella]

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 at intel.com>
Signed-off-by: Joyce Toh <joyce.toh at 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) {
-- 
2.7.4