File: cs4271.h

package info (click to toggle)
linux 6.18.5-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 1,742,096 kB
  • sloc: ansic: 26,781,576; asm: 272,087; sh: 148,750; python: 79,244; makefile: 57,741; perl: 36,527; xml: 19,542; cpp: 5,911; yacc: 4,939; lex: 2,950; awk: 1,607; sed: 30; ruby: 25
file content (30 lines) | stat: -rw-r--r-- 906 bytes parent folder | download | duplicates (17)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
/* 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 {
	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 */