On loongson controller, RIRBSTS.RINTFL cannot be cleared,
azx_interrupt() is called all the time. We disable RIRB
interrupt, and use polling mode by default.
Signed-off-by: Yanteng Si <siyanteng@xxxxxxxxxxx>
Signed-off-by: Yingkun Meng <mengyingkun@xxxxxxxxxxx>
---
include/sound/hdaudio.h | 1 +
sound/hda/hdac_controller.c | 5 ++++-
sound/pci/hda/hda_intel.c | 5 +++++
3 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h
index 97f09acae302..a0bb40a4b721 100644
--- a/include/sound/hdaudio.h
+++ b/include/sound/hdaudio.h
@@ -347,6 +347,7 @@ struct hdac_bus {
bool corbrp_self_clear:1; /* CORBRP clears itself after reset */
bool polling_mode:1;
bool needs_damn_long_delay:1;
+ bool not_use_interrupts:1; /* prohibiting the RIRB IRQ */
int poll_count;
diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c
index 3c7af6558249..7f3a000fab0c 100644
--- a/sound/hda/hdac_controller.c
+++ b/sound/hda/hdac_controller.c
@@ -79,7 +79,10 @@ void snd_hdac_bus_init_cmd_io(struct hdac_bus *bus)
/* set N=1, get RIRB response interrupt for new entry */
snd_hdac_chip_writew(bus, RINTCNT, 1);
/* enable rirb dma and response irq */
- snd_hdac_chip_writeb(bus, RIRBCTL, AZX_RBCTL_DMA_EN | AZX_RBCTL_IRQ_EN);
+ if (bus->not_use_interrupts)
+ snd_hdac_chip_writeb(bus, RIRBCTL, AZX_RBCTL_DMA_EN);
+ else
+ snd_hdac_chip_writeb(bus, RIRBCTL, AZX_RBCTL_DMA_EN | AZX_RBCTL_IRQ_EN);
/* Accept unsolicited responses */
snd_hdac_chip_updatel(bus, GCTL, AZX_GCTL_UNSOL, AZX_GCTL_UNSOL);
spin_unlock_irq(&bus->reg_lock);
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 9c353dc7740c..b7a7a92d03ef 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1875,6 +1875,11 @@ static int azx_first_init(struct azx *chip)
if (chip->driver_type == AZX_DRIVER_GFHDMI)
bus->polling_mode = 1;
+ if (chip->driver_type == AZX_DRIVER_LOONGSON) {
+ bus->polling_mode = 1;
+ bus->not_use_interrupts = 1;
+ }
+
err = pcim_iomap_regions(pci, 1 << 0, "ICH HD audio");
if (err < 0)
return err;
--
2.31.4
