mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-06 02:50:43 +00:00
![Padmavathi Venna](/assets/img/avatar_default.png)
Internal DMA is available only on some of Samsung platforms. So added a quirk for the same and made it optional. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*
|
|
* Copyright (c) 2009 Samsung Electronics Co. Ltd
|
|
* Author: Jaswinder Singh <jassi.brar@samsung.com>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/* The machine init code calls s3c*_ac97_setup_gpio with
|
|
* one of these defines in order to select appropriate bank
|
|
* of GPIO for AC97 pins
|
|
*/
|
|
#define S3C64XX_AC97_GPD 0
|
|
#define S3C64XX_AC97_GPE 1
|
|
extern void s3c64xx_ac97_setup_gpio(int);
|
|
|
|
struct samsung_i2s {
|
|
/* If the Primary DAI has 5.1 Channels */
|
|
#define QUIRK_PRI_6CHAN (1 << 0)
|
|
/* If the I2S block has a Stereo Overlay Channel */
|
|
#define QUIRK_SEC_DAI (1 << 1)
|
|
/*
|
|
* If the I2S block has no internal prescalar or MUX (I2SMOD[10] bit)
|
|
* The Machine driver must provide suitably set clock to the I2S block.
|
|
*/
|
|
#define QUIRK_NO_MUXPSR (1 << 2)
|
|
#define QUIRK_NEED_RSTCLR (1 << 3)
|
|
#define QUIRK_SUPPORTS_TDM (1 << 4)
|
|
#define QUIRK_SUPPORTS_IDMA (1 << 5)
|
|
/* Quirks of the I2S controller */
|
|
u32 quirks;
|
|
dma_addr_t idma_addr;
|
|
};
|
|
|
|
/**
|
|
* struct s3c_audio_pdata - common platform data for audio device drivers
|
|
* @cfg_gpio: Callback function to setup mux'ed pins in I2S/PCM/AC97 mode
|
|
*/
|
|
struct s3c_audio_pdata {
|
|
int (*cfg_gpio)(struct platform_device *);
|
|
union {
|
|
struct samsung_i2s i2s;
|
|
} type;
|
|
};
|