Update of /cvsroot/alsa/alsa-kernel/pci
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv13206
Modified Files:
intel8x0.c
Log Message:
From: Giridhar Pemmasani <[EMAIL PROTECTED]>
It seems that pci config space is messed up after resume for Intel ICH4
audio controller (on Dell Latitude D600, but I notice that others also
complain about this problem). Consequently resume from S3 causes oops with
snd_intel8x0 module. If the module is removed before suspend and loaded
afterwards, I still get oops. The following simple patch fixes the
problem. With this, I can leave alsa untouched during suspend/resume.
Index: intel8x0.c
===================================================================
RCS file: /cvsroot/alsa/alsa-kernel/pci/intel8x0.c,v
retrieving revision 1.135
retrieving revision 1.136
diff -u -r1.135 -r1.136
--- intel8x0.c 14 Apr 2004 17:24:32 -0000 1.135
+++ intel8x0.c 21 Apr 2004 18:18:27 -0000 1.136
@@ -444,6 +444,10 @@
struct snd_dma_buffer bdbars;
u32 int_sta_reg; /* interrupt status register */
u32 int_sta_mask; /* interrupt status mask */
+
+#ifdef CONFIG_PM
+ u32 pci_state[64 / sizeof(u32)];
+#endif
};
static struct pci_device_id snd_intel8x0_ids[] = {
@@ -2208,6 +2212,7 @@
for (i = 0; i < 3; i++)
if (chip->ac97[i])
snd_ac97_suspend(chip->ac97[i]);
+ pci_save_state(chip->pci, chip->pci_state);
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
return 0;
}
@@ -2217,6 +2222,7 @@
intel8x0_t *chip = snd_magic_cast(intel8x0_t, card->pm_private_data, return
-EINVAL);
int i;
+ pci_restore_state(chip->pci, chip->pci_state);
pci_enable_device(chip->pci);
pci_set_master(chip->pci);
snd_intel8x0_chip_init(chip, 0);
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