diff options
Diffstat (limited to 'sound/usb/clock.c')
-rw-r--r-- | sound/usb/clock.c | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/sound/usb/clock.c b/sound/usb/clock.c index bfe5540030b8..d1455fb2c6fc 100644 --- a/sound/usb/clock.c +++ b/sound/usb/clock.c @@ -273,7 +273,7 @@ static int __uac_clock_find_source(struct snd_usb_audio *chip, selector = snd_usb_find_clock_selector(chip->ctrl_intf, entity_id); if (selector) { - int ret, i, cur; + int ret, i, cur, err; /* the entity ID we are looking for is a selector. * find out what it currently selects */ @@ -295,13 +295,23 @@ static int __uac_clock_find_source(struct snd_usb_audio *chip, ret = __uac_clock_find_source(chip, fmt, selector->baCSourceID[ret - 1], visited, validate); + if (ret > 0) { + /* + * For Samsung USBC Headset (AKG), setting clock selector again + * will result in incorrect default clock setting problems + */ + if (chip->usb_id == USB_ID(0x04e8, 0xa051)) + return ret; + err = uac_clock_selector_set_val(chip, entity_id, cur); + if (err < 0) + return err; + } + if (!validate || ret > 0 || !chip->autoclock) return ret; /* The current clock source is invalid, try others. */ for (i = 1; i <= selector->bNrInPins; i++) { - int err; - if (i == cur) continue; @@ -367,7 +377,7 @@ static int __uac3_clock_find_source(struct snd_usb_audio *chip, selector = snd_usb_find_clock_selector_v3(chip->ctrl_intf, entity_id); if (selector) { - int ret, i, cur; + int ret, i, cur, err; /* the entity ID we are looking for is a selector. * find out what it currently selects */ @@ -389,6 +399,12 @@ static int __uac3_clock_find_source(struct snd_usb_audio *chip, ret = __uac3_clock_find_source(chip, fmt, selector->baCSourceID[ret - 1], visited, validate); + if (ret > 0) { + err = uac_clock_selector_set_val(chip, entity_id, cur); + if (err < 0) + return err; + } + if (!validate || ret > 0 || !chip->autoclock) return ret; @@ -508,6 +524,12 @@ static int set_sample_rate_v1(struct snd_usb_audio *chip, int iface, } crate = data[0] | (data[1] << 8) | (data[2] << 16); + if (!crate) { + dev_info(&dev->dev, "failed to read current rate; disabling the check\n"); + chip->sample_rate_read_error = 3; /* three strikes, see above */ + return 0; + } + if (crate != rate) { dev_warn(&dev->dev, "current rate %d is different from the runtime rate %d\n", crate, rate); // runtime->rate = crate; |