diff options
| -rw-r--r-- | drivers/soundwire/intel_init.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/soundwire/intel_init.c b/drivers/soundwire/intel_init.c index 771a53a5c033..70637a0383d2 100644 --- a/drivers/soundwire/intel_init.c +++ b/drivers/soundwire/intel_init.c @@ -81,6 +81,7 @@ static struct sdw_intel_ctx /* Check SNDWLCAP.LCOUNT */ caps = ioread32(res->mmio_base + SDW_SHIM_BASE + SDW_SHIM_LCAP); + caps &= GENMASK(2, 0); /* Check HW supported vs property value and use min of two */ count = min_t(u8, caps, count); @@ -90,6 +91,9 @@ static struct sdw_intel_ctx dev_err(&adev->dev, "Link count %d exceeds max %d\n", count, SDW_MAX_LINKS); return NULL; + } else if (!count) { + dev_warn(&adev->dev, "No SoundWire links detected\n"); + return NULL; } dev_dbg(&adev->dev, "Creating %d SDW Link devices\n", count); |