diff options
| author | Takashi Iwai | 2020-09-03 12:41:28 +0200 |
|---|---|---|
| committer | Takashi Iwai | 2020-09-09 18:34:10 +0200 |
| commit | 2ac55daffee5af04b13f96e6acef63a8e4bfff85 (patch) | |
| tree | 98f343d8d449b1eb1bba653afb4463a2b1db7812 /sound/pci | |
| parent | a2e527c5a3ebcf248b51705ef44f6700403fd8e3 (diff) | |
ALSA: riptide: Replace tasklet with threaded irq
The tasklet is an old API that should be deprecated, usually can be
converted to another decent API. In Riptide driver, a tasklet is
still used for offloading the PCM IRQ handling. It can be achieved
gracefully with a threaded IRQ, too.
This patch replaces the tasklet usage in riptide driver with a
threaded IRQ.
Link: https://lore.kernel.org/r/20200903104131.21097-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/riptide/riptide.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/sound/pci/riptide/riptide.c b/sound/pci/riptide/riptide.c index 098c69b3b7aa..fcc2073c5025 100644 --- a/sound/pci/riptide/riptide.c +++ b/sound/pci/riptide/riptide.c @@ -445,7 +445,6 @@ struct snd_riptide { union firmware_version firmware; spinlock_t lock; - struct tasklet_struct riptide_tq; struct snd_info_entry *proc_entry; unsigned long received_irqs; @@ -1070,9 +1069,9 @@ getmixer(struct cmdif *cif, short num, unsigned short *rval, return 0; } -static void riptide_handleirq(struct tasklet_struct *t) +static irqreturn_t riptide_handleirq(int irq, void *dev_id) { - struct snd_riptide *chip = from_tasklet(chip, t, riptide_tq); + struct snd_riptide *chip = dev_id; struct cmdif *cif = chip->cif; struct snd_pcm_substream *substream[PLAYBACK_SUBSTREAMS + 1]; struct snd_pcm_runtime *runtime; @@ -1083,7 +1082,7 @@ static void riptide_handleirq(struct tasklet_struct *t) unsigned int flag; if (!cif) - return; + return IRQ_HANDLED; for (i = 0; i < PLAYBACK_SUBSTREAMS; i++) substream[i] = chip->playback_substream[i]; @@ -1134,6 +1133,8 @@ static void riptide_handleirq(struct tasklet_struct *t) } } } + + return IRQ_HANDLED; } #ifdef CONFIG_PM_SLEEP @@ -1699,13 +1700,14 @@ snd_riptide_interrupt(int irq, void *dev_id) { struct snd_riptide *chip = dev_id; struct cmdif *cif = chip->cif; + irqreturn_t ret = IRQ_HANDLED; if (cif) { chip->received_irqs++; if (IS_EOBIRQ(cif->hwport) || IS_EOSIRQ(cif->hwport) || IS_EOCIRQ(cif->hwport)) { chip->handled_irqs++; - tasklet_schedule(&chip->riptide_tq); + ret = IRQ_WAKE_THREAD; } if (chip->rmidi && IS_MPUIRQ(cif->hwport)) { chip->handled_irqs++; @@ -1714,7 +1716,7 @@ snd_riptide_interrupt(int irq, void *dev_id) } SET_AIACK(cif->hwport); } - return IRQ_HANDLED; + return ret; } static void @@ -1843,7 +1845,6 @@ snd_riptide_create(struct snd_card *card, struct pci_dev *pci, chip->received_irqs = 0; chip->handled_irqs = 0; chip->cif = NULL; - tasklet_setup(&chip->riptide_tq, riptide_handleirq); if ((chip->res_port = request_region(chip->port, 64, "RIPTIDE")) == NULL) { @@ -1856,8 +1857,9 @@ snd_riptide_create(struct snd_card *card, struct pci_dev *pci, hwport = (struct riptideport *)chip->port; UNSET_AIE(hwport); - if (request_irq(pci->irq, snd_riptide_interrupt, IRQF_SHARED, - KBUILD_MODNAME, chip)) { + if (request_threaded_irq(pci->irq, snd_riptide_interrupt, + riptide_handleirq, IRQF_SHARED, + KBUILD_MODNAME, chip)) { snd_printk(KERN_ERR "Riptide: unable to grab IRQ %d\n", pci->irq); snd_riptide_free(chip); |