You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
32 lines
961 B
32 lines
961 B
4 months ago
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||
|
|
/*
|
||
|
|
* Definitions for CS4271 ASoC codec driver
|
||
|
|
*
|
||
|
|
* Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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 */
|