[ALSA] es1938 - Clean up and fix trigger in PM

Modules: ES1938 driver

- Clean up the last PM fix
- Add TRIGGER_SUSPEND/RESUME to disable/enable DMA properly during PM

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

diff --git a/sound/pci/es1938.c b/sound/pci/es1938.c
index e8b8ebf..7bfbdfc 100644 (file)
--- a/sound/pci/es1938.c
+++ b/sound/pci/es1938.c
@@ -543,10 +543,12 @@ static int snd_es1938_capture_trigger(snd_pcm_substream_t * substream,
        int val;
        switch (cmd) {
        case SNDRV_PCM_TRIGGER_START:
+       case SNDRV_PCM_TRIGGER_RESUME:
                val = 0x0f;
                chip->active |= ADC1;
                break;
        case SNDRV_PCM_TRIGGER_STOP:
+       case SNDRV_PCM_TRIGGER_SUSPEND:
                val = 0x00;
                chip->active &= ~ADC1;
                break;
@@ -563,6 +565,7 @@ static int snd_es1938_playback1_trigger(snd_pcm_substream_t * substream,
        es1938_t *chip = snd_pcm_substream_chip(substream);
        switch (cmd) {
        case SNDRV_PCM_TRIGGER_START:
+       case SNDRV_PCM_TRIGGER_RESUME:
                /* According to the documentation this should be:
                   0x13 but that value may randomly swap stereo channels */
                 snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0x92);
@@ -575,6 +578,7 @@ static int snd_es1938_playback1_trigger(snd_pcm_substream_t * substream,
                chip->active |= DAC2;
                break;
        case SNDRV_PCM_TRIGGER_STOP:
+       case SNDRV_PCM_TRIGGER_SUSPEND:
                outb(0, SLIO_REG(chip, AUDIO2MODE));
                snd_es1938_mixer_write(chip, ESSSB_IREG_AUDIO2CONTROL1, 0);
                chip->active &= ~DAC2;
@@ -592,10 +596,12 @@ static int snd_es1938_playback2_trigger(snd_pcm_substream_t * substream,
        int val;
        switch (cmd) {
        case SNDRV_PCM_TRIGGER_START:
+       case SNDRV_PCM_TRIGGER_RESUME:
                val = 5;
                chip->active |= DAC1;
                break;
        case SNDRV_PCM_TRIGGER_STOP:
+       case SNDRV_PCM_TRIGGER_SUSPEND:
                val = 0;
                chip->active &= ~DAC1;
                break;
@@ -1390,7 +1396,7 @@ static int es1938_suspend(snd_card_t *card, pm_message_t state)
                *d = snd_es1938_reg_read(chip, *s);
 
        outb(0x00, SLIO_REG(chip, IRQCONTROL)); /* disable irqs */
-       if (chip->irq >= 0)                                                                         
+       if (chip->irq >= 0)
                free_irq(chip->irq, (void *)chip);  
        pci_disable_device(chip->pci);
        return 0;
@@ -1402,7 +1408,9 @@ static int es1938_resume(snd_card_t *card)
        unsigned char *s, *d;
 
        pci_enable_device(chip->pci);
-       request_irq(chip->pci->irq, snd_es1938_interrupt, SA_INTERRUPT|SA_SHIRQ, "ES1938", (void *)chip);
+       request_irq(chip->pci->irq, snd_es1938_interrupt,
+                   SA_INTERRUPT|SA_SHIRQ, "ES1938", (void *)chip);
+       chip->irq = chip->pci->irq;
        snd_es1938_chip_init(chip);
 
        /* restore mixer-related registers */