ALSA: emu10k1: don't update firmware during suspend/resume

Add a flag to suppress the update in emu1010_firmware_thread() during
suspend/resume.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

2 files changed, 6 insertions, 0 deletions

diff --git a/sound/pci/emu10k1/emu10k1.c b/sound/pci/emu10k1/emu10k1.c
index b7c1875ba90e..a168138efc5e 100644
--- a/sound/pci/emu10k1/emu10k1.c
+++ b/sound/pci/emu10k1/emu10k1.c
@@ -215,6 +215,8 @@ static int snd_emu10k1_suspend(struct device *dev)
 
         snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
 
+        emu->suspend = 1;
+
         snd_pcm_suspend_all(emu->pcm);
         snd_pcm_suspend_all(emu->pcm_mic);
         snd_pcm_suspend_all(emu->pcm_efx);
@@ -260,6 +262,8 @@ static int snd_emu10k1_resume(struct device *dev)
         if (emu->card_capabilities->ca0151_chip)
                 snd_p16v_resume(emu);
 
+        emu->suspend = 0;
+
         snd_power_change_state(card, SNDRV_CTL_POWER_D0);
         return 0;
 }
diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index 1dfb94d16b8b..cfd6cf952d44 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -714,6 +714,8 @@ static int emu1010_firmware_thread(void *data)
                 msleep_interruptible(1000);
                 if (kthread_should_stop())
                         break;
+                if (emu->suspend)
+                        continue;
                 snd_emu1010_fpga_read(emu, EMU_HANA_IRQ_STATUS, &tmp); /* IRQ Status */
                 snd_emu1010_fpga_read(emu, EMU_HANA_OPTION_CARDS, &reg); /* OPTIONS: Which cards are attached to the EMU */
                 if (reg & EMU_HANA_OPTION_DOCK_OFFLINE) {