| 1 |
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| 2 | |
| 3 | * Definitions for CS4271 ASoC codec driver
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| 4 | *
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| 5 | * Copyright (c) 2010 Alexander Sverdlin <[email protected]>
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| 6 |
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| 7 |
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| 8 | #ifndef __CS4271_H
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| 9 | #define __CS4271_H
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| 10 |
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| 11 | struct cs4271_platform_data {
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| 12 | bool amutec_eq_bmutec;
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| 13 |
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| 14 | |
| 15 | * The CS4271 requires its LRCLK and MCLK to be stable before its RESET
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| 16 | * line is de-asserted. That also means that clocks cannot be changed
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| 17 | * without putting the chip back into hardware reset, which also requires
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| 18 | * a complete re-initialization of all registers.
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| 19 | *
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| 20 | * One (undocumented) workaround is to assert and de-assert the PDN bit
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| 21 | * in the MODE2 register. This workaround can be enabled with the
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| 22 | * following flag.
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| 23 | *
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| 24 | * Note that this is not needed in case the clocks are stable
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| 25 | * throughout the entire runtime of the codec.
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| 26 |
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| 27 | bool enable_soft_reset;
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| 28 | };
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| 29 |
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| 30 | #endif
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