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authorHeiner Kallweit <hkallweit1@gmail.com>2015-12-22 19:09:05 +0100
committerTakashi Iwai <tiwai@suse.de>2016-01-12 21:05:16 +0100
commitde65360be0239a63268de589c4189f8ee52dad6c (patch)
treec7fe0f3b2d33e3e487b6e875826198dae7574ed8 /sound
parent3567eb6af614dac436c4b16a8d426f9faed639b3 (diff)
downloadlinux-de65360be0239a63268de589c4189f8ee52dad6c.tar.bz2
ALSA: hda_intel: add card number to irq description
Currently the info in /proc/interrupts doesn't allow to figure out which interrupt belongs to which card (HDMI, PCH, ..). Therefore add card details to the interrupt description. With the patch the info in /proc/interrupts looks like this: PCI-MSI 442368-edge snd_hda_intel:card1 PCI-MSI 49152-edge snd_hda_intel:card0 NOTE: this patch adds the new irq_descr field snd_card struct that is filled automatically at a card object creation. This can be used generically for other drivers as well. The changes for others will follow later -- tiwai Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/core/init.c3
-rw-r--r--sound/pci/hda/hda_intel.c2
2 files changed, 4 insertions, 1 deletions
diff --git a/sound/core/init.c b/sound/core/init.c
index 20f37fb3800e..6bda8436d765 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -268,6 +268,9 @@ int snd_card_new(struct device *parent, int idx, const char *xid,
if (err < 0)
goto __error;
+ snprintf(card->irq_descr, sizeof(card->irq_descr), "%s:%s",
+ dev_driver_string(card->dev), dev_name(&card->card_dev));
+
/* the control interface cannot be accessed from the user space until */
/* snd_cards_bitmask and snd_cards are set with snd_card_register */
err = snd_ctl_create(card);
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 83800ac6ebd7..c0bef11afa7e 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -725,7 +725,7 @@ static int azx_acquire_irq(struct azx *chip, int do_disconnect)
if (request_irq(chip->pci->irq, azx_interrupt,
chip->msi ? 0 : IRQF_SHARED,
- KBUILD_MODNAME, chip)) {
+ chip->card->irq_descr, chip)) {
dev_err(chip->card->dev,
"unable to grab IRQ %d, disabling device\n",
chip->pci->irq);