[PATCH 4.2.y-ckt 212/268] ALSA: fm801: propagate TUNER_ONLY bit when autodetected
From: Kamal Mostafa
Date: Wed Jan 27 2016 - 15:57:32 EST
4.2.8-ckt3 -stable review patch. If anyone has any objections, please let me know.
---8<------------------------------------------------------------
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: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
sound/pci/fm801.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c
index f57847c..27f97b9 100644
--- a/sound/pci/fm801.c
+++ b/sound/pci/fm801.c
@@ -1251,6 +1251,8 @@ static int snd_fm801_create(struct snd_card *card,
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;
@@ -1265,6 +1267,8 @@ static int snd_fm801_create(struct snd_card *card,
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,
--
1.9.1