X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=sound%2Fpci%2Fcs4281.c;h=eb3c52b03af309bf0f14edd9ceba833583bc0355;hb=54522b6613a03807f057fd567794a31267ef85cb;hp=8b42e8631f2a0fb33bdec601c40e19bf7fb7d919;hpb=01d25d460a3b28aab537fab9a0038d1b5832ce28;p=linux-2.6

diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index 8b42e8631f..eb3c52b03a 100644
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -206,7 +206,10 @@ MODULE_PARM_DESC(dual_codec, "Secondary Codec ID (0 = disabled).");
 
 #define BA0_PMCS		0x0344	/* Power Management Control/Status */
 #define BA0_CWPR		0x03e0	/* Configuration Write Protect */
+
 #define BA0_EPPMC		0x03e4	/* Extended PCI Power Management Control */
+#define BA0_EPPMC_FPDN		(1<<14) /* Full Power DowN */
+
 #define BA0_GPIOR		0x03e8	/* GPIO Pin Interface Register */
 
 #define BA0_SPMC		0x03ec	/* Serial Port Power Management Control (& ASDIN2 enable) */
@@ -1335,11 +1338,6 @@ static inline int snd_cs4281_create_gameport(cs4281_t *chip) { return -ENOSYS; }
 static inline void snd_cs4281_free_gameport(cs4281_t *chip) { }
 #endif /* CONFIG_GAMEPORT || (MODULE && CONFIG_GAMEPORT_MODULE) */
 
-
-/*
-
- */
-
 static int snd_cs4281_free(cs4281_t *chip)
 {
 	snd_cs4281_free_gameport(chip);
@@ -1461,6 +1459,11 @@ static int snd_cs4281_chip_init(cs4281_t *chip)
 	int timeout;
 	int retry_count = 2;
 
+	/* Having EPPMC.FPDN=1 prevent proper chip initialisation */
+	tmp = snd_cs4281_peekBA0(chip, BA0_EPPMC);
+	if (tmp & BA0_EPPMC_FPDN)
+		snd_cs4281_pokeBA0(chip, BA0_EPPMC, tmp & ~BA0_EPPMC_FPDN);
+
       __retry:
 	tmp = snd_cs4281_peekBA0(chip, BA0_CFLR);
 	if (tmp != BA0_CFLR_DEFAULT) {