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13 June 2022, 11:31:42 UTC
Revision 98a226ed21949601b270f7ea20abc9f72f7b0be9 authored by Takashi Iwai on 10 June 2015, 08:27:00 UTC, committed by Takashi Iwai on 10 June 2015, 08:31:10 UTC 
ALSA: hda - Don't actually write registers for caps overwrites
 
Along with the transition to regmap for managing the cached parameter
reads, the caps overwrite was also moved to regmap cache.  The cache
change itself works, but it still tries to write the non-existing verb
(the HDA parameter is read-only) wrongly.  It's harmless in most
cases, but some chips are picky and may result in the codec
communication stall.

This patch avoids it just by adding the missing flag check in
reg_write ops.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
1 parent 132bd96
Raw File
Tip revision: 98a226ed21949601b270f7ea20abc9f72f7b0be9 authored by Takashi Iwai on 10 June 2015, 08:27:00 UTC
ALSA: hda - Don't actually write registers for caps overwrites
Tip revision: 98a226e
dm9000.h 
/* include/linux/dm9000.h
 *
 * Copyright (c) 2004 Simtec Electronics
 *   Ben Dooks <ben@simtec.co.uk>
 *
 * Header file for dm9000 platform data
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
*/

#ifndef __DM9000_PLATFORM_DATA
#define __DM9000_PLATFORM_DATA __FILE__

#include <linux/if_ether.h>

/* IO control flags */

#define DM9000_PLATF_8BITONLY	(0x0001)
#define DM9000_PLATF_16BITONLY	(0x0002)
#define DM9000_PLATF_32BITONLY	(0x0004)
#define DM9000_PLATF_EXT_PHY	(0x0008)
#define DM9000_PLATF_NO_EEPROM	(0x0010)
#define DM9000_PLATF_SIMPLE_PHY (0x0020)  /* Use NSR to find LinkStatus */

/* platform data for platform device structure's platform_data field */

struct dm9000_plat_data {
	unsigned int	flags;
	unsigned char	dev_addr[ETH_ALEN];

	/* allow replacement IO routines */

	void	(*inblk)(void __iomem *reg, void *data, int len);
	void	(*outblk)(void __iomem *reg, void *data, int len);
	void	(*dumpblk)(void __iomem *reg, int len);
};

#endif /* __DM9000_PLATFORM_DATA */
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