| /* | |
| * Definitions for CS4271 ASoC codec driver | |
| * | |
| * Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru> | |
| * | |
| * 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 */ |