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@@ -206,7 +206,10 @@ MODULE_PARM_DESC(dual_codec, "Secondary Codec ID (0 = disabled).");
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#define BA0_PMCS 0x0344 /* Power Management Control/Status */
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#define BA0_CWPR 0x03e0 /* Configuration Write Protect */
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+
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#define BA0_EPPMC 0x03e4 /* Extended PCI Power Management Control */
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+#define BA0_EPPMC_FPDN (1<<14) /* Full Power DowN */
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+
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#define BA0_GPIOR 0x03e8 /* GPIO Pin Interface Register */
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#define BA0_SPMC 0x03ec /* Serial Port Power Management Control (& ASDIN2 enable) */
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@@ -1461,6 +1464,11 @@ static int snd_cs4281_chip_init(cs4281_t *chip)
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int timeout;
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int retry_count = 2;
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+ /* Having EPPMC.FPDN=1 prevent proper chip initialisation */
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+ tmp = snd_cs4281_peekBA0(chip, BA0_EPPMC);
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+ if (tmp & BA0_EPPMC_FPDN)
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+ snd_cs4281_pokeBA0(chip, BA0_EPPMC, tmp & ~BA0_EPPMC_FPDN);
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+
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__retry:
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tmp = snd_cs4281_peekBA0(chip, BA0_CFLR);
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if (tmp != BA0_CFLR_DEFAULT) {
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