ALSA: hda: Poll jack events for LS7A HD-Audio

chenhuacai · tiwai · commit e3f8064d8b29 · 2024-11-18T14:40:01.000+01:00
LS7A HD-Audio disable interrupts and use polling mode due to hardware drawbacks. As a result, unsolicited jack events are also unusable. If we want to support headphone hotplug, we need to also poll jack events. Here we use 1500ms as the poll interval if no module parameter specify it. Cc: stable@vger.kernel.org Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Link: https://patch.msgid.link/20241115150653.2819100-1-chenhuacai@loongson.cn Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
@@ -1859,6 +1859,8 @@ static int azx_first_init(struct azx *chip)
 		bus->polling_mode = 1;
 		bus->not_use_interrupts = 1;
 		bus->access_sdnctl_in_dword = 1;
+		if (!chip->jackpoll_interval)
+			chip->jackpoll_interval = msecs_to_jiffies(1500);
 	}
 
 	err = pcim_iomap_regions(pci, 1 << 0, "ICH HD audio");

Original file line number	Diff line number	Diff line change
`@@ -1859,6 +1859,8 @@ static int azx_first_init(struct azx *chip)`
`1859`	`1859`	`bus->polling_mode = 1;`
`1860`	`1860`	`bus->not_use_interrupts = 1;`
`1861`	`1861`	`bus->access_sdnctl_in_dword = 1;`
	`1862`	`+ if (!chip->jackpoll_interval)`
	`1863`	`+ chip->jackpoll_interval = msecs_to_jiffies(1500);`
`1862`	`1864`	`}`
`1863`	`1865`
`1864`	`1866`	`err = pcim_iomap_regions(pci, 1 << 0, "ICH HD audio");`