This is a note to let you know that I've just added the patch titled ALSA: fm801: propagate TUNER_ONLY bit when autodetected to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: alsa-fm801-propagate-tuner_only-bit-when-autodetected.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From dbec6719ac036f68568d8488805d41346c021eff Mon Sep 17 00:00:00 2001 From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Date: Mon, 21 Dec 2015 19:09:52 +0200 Subject: ALSA: fm801: propagate TUNER_ONLY bit when autodetected From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> commit dbec6719ac036f68568d8488805d41346c021eff upstream. The commit d7ba858a7f7a (ALSA: fm801: implement TEA575x tuner autodetection) brings autodetection to the driver. However the autodetection algorithm misses the TUNER_ONLY bit if it is supplied by the user. Thus, user gets weird messages and no card registered. snd_fm801 0000:0d:01.0: detected TEA575x radio type SF64-PCR snd_fm801 0000:0d:01.0: AC'97 interface is busy (1) snd_fm801 0000:0d:01.0: AC'97 interface is busy (1) ... snd_fm801 0000:0d:01.0: AC'97 0 does not respond - RESET snd_fm801 0000:0d:01.0: AC'97 interface is busy (1) snd_fm801 0000:0d:01.0: AC'97 interface is busy (1) snd_fm801 0000:0d:01.0: AC'97 0 access is not valid [0x0], removing mixer. snd_fm801: probe of 0000:0d:01.0 failed with error -5 Do a copy of TUNER_ONLY bit to be applied after autodetection is done. Fixes: d7ba858a7f7a (ALSA: fm801: implement TEA575x tuner autodetection) Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Cc: Ondrej Zary <linux@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- sound/pci/fm801.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/sound/pci/fm801.c +++ b/sound/pci/fm801.c @@ -1259,6 +1259,8 @@ static int snd_fm801_create(struct snd_c return -ENODEV; } } else if ((tea575x_tuner & TUNER_TYPE_MASK) == 0) { + unsigned int tuner_only = tea575x_tuner & TUNER_ONLY; + /* autodetect tuner connection */ for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) { chip->tea575x_tuner = tea575x_tuner; @@ -1273,6 +1275,8 @@ static int snd_fm801_create(struct snd_c dev_err(card->dev, "TEA575x radio not found\n"); chip->tea575x_tuner = TUNER_DISABLED; } + + chip->tea575x_tuner |= tuner_only; } if (!(chip->tea575x_tuner & TUNER_DISABLED)) { strlcpy(chip->tea.card, get_tea575x_gpio(chip)->name, Patches currently in stable-queue which might be from andriy.shevchenko@xxxxxxxxxxxxxxx are queue-4.4/alsa-fm801-propagate-tuner_only-bit-when-autodetected.patch queue-4.4/alsa-fm801-explicitly-free-irq-line.patch queue-4.4/usb-gadged-pch_udc-get-rid-of-redundant-assignments.patch queue-4.4/alsa-fm801-detect-fm-only-card-earlier.patch