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-rw-r--r--sound/pci/hda/hda_intel.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index f089fa0..9f110c7 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1120,6 +1120,20 @@ static void azx_load_dsp_cleanup(struct hda_bus *bus,
struct snd_dma_buffer *dmab);
#endif
+/* enter link reset */
+static void azx_reset_link(struct azx *chip)
+{
+ unsigned long timeout;
+
+ /* reset controller */
+ azx_writel(chip, GCTL, azx_readl(chip, GCTL) & ~ICH6_GCTL_RESET);
+
+ timeout = jiffies + msecs_to_jiffies(100);
+ while ((azx_readb(chip, GCTL) & ICH6_GCTL_RESET) &&
+ time_before(jiffies, timeout))
+ usleep_range(500, 1000);
+}
+
/* reset codec link */
static int azx_reset(struct azx *chip, int full_reset)
{
@@ -2894,6 +2908,7 @@ static int azx_suspend(struct device *dev)
if (chip->initialized)
snd_hda_suspend(chip->bus);
azx_stop_chip(chip);
+ azx_reset_link(chip);
if (chip->irq >= 0) {
free_irq(chip->irq, chip);
chip->irq = -1;
@@ -2946,6 +2961,7 @@ static int azx_runtime_suspend(struct device *dev)
struct azx *chip = card->private_data;
azx_stop_chip(chip);
+ azx_reset_link(chip);
azx_clear_irq_pending(chip);
return 0;
}
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