| /* |
| * Definitions for CS4271 ASoC codec driver |
| * |
| * Copyright (c) 2010 Alexander Sverdlin <[email protected]> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #ifndef __CS4271_H |
| #define __CS4271_H |
| |
| struct cs4271_platform_data { |
| int gpio_nreset; /* GPIO driving Reset pin, if any */ |
| bool amutec_eq_bmutec; /* flag to enable AMUTEC=BMUTEC */ |
| |
| /* |
| * The CS4271 requires its LRCLK and MCLK to be stable before its RESET |
| * line is de-asserted. That also means that clocks cannot be changed |
| * without putting the chip back into hardware reset, which also requires |
| * a complete re-initialization of all registers. |
| * |
| * One (undocumented) workaround is to assert and de-assert the PDN bit |
| * in the MODE2 register. This workaround can be enabled with the |
| * following flag. |
| * |
| * Note that this is not needed in case the clocks are stable |
| * throughout the entire runtime of the codec. |
| */ |
| bool enable_soft_reset; |
| }; |
| |
| #endif /* __CS4271_H */ |
