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Commit 1b340bd7 authored by Mark Brown's avatar Mark Brown
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ASoC: Add PXA SSP support 



The SSP ports PXA series processors can be used to implement a variety of
audio interface formats. This patch implements support for I2S, DSP A and
DSP B modes on these ports.

This patch is based on the previous out of tree pxa2xx-ssp driver (which
was originally written by Liam Girdwood with updates from Philipp Zabel
and Nicola Perrino) and pxa3xx-ssp driver (originally written by Seth
Forsee based on the pxa2xx-ssp driver). Testing coverage is not complete
currently.

Tested-by: default avatarDaniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 219b93f5

sound/soc/pxa/Kconfig

+13 −0
Original line number Diff line number Diff line
@@ -21,6 +21,9 @@ config SND_PXA2XX_SOC_AC97 
config SND_PXA2XX_SOC_I2S

	tristate



config SND_PXA_SOC_SSP

	tristate



config SND_PXA2XX_SOC_CORGI

	tristate "SoC Audio support for Sharp Zaurus SL-C7x0"

	depends on SND_PXA2XX_SOC && PXA_SHARP_C7xx
@@ -75,3 +78,13 @@ config SND_PXA2XX_SOC_EM_X270 
	help

	  Say Y if you want to add support for SoC audio on

	  CompuLab EM-x270.



config SND_SOC_ZYLONITE

	tristate "SoC Audio support for Marvell Zylonite"

	depends on SND_PXA2XX_SOC && MACH_ZYLONITE

	select SND_PXA2XX_SOC_AC97

	select SND_PXA_SOC_SSP

	select SND_SOC_WM9713

	help

	  Say Y if you want to add support for SoC audio on the

	  Marvell Zylonite reference platform.

sound/soc/pxa/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -2,10 +2,12 @@ 
snd-soc-pxa2xx-objs := pxa2xx-pcm.o

snd-soc-pxa2xx-ac97-objs := pxa2xx-ac97.o

snd-soc-pxa2xx-i2s-objs := pxa2xx-i2s.o

snd-soc-pxa-ssp-objs := pxa-ssp.o



obj-$(CONFIG_SND_PXA2XX_SOC) += snd-soc-pxa2xx.o

obj-$(CONFIG_SND_PXA2XX_SOC_AC97) += snd-soc-pxa2xx-ac97.o

obj-$(CONFIG_SND_PXA2XX_SOC_I2S) += snd-soc-pxa2xx-i2s.o

obj-$(CONFIG_SND_PXA_SOC_SSP) += snd-soc-pxa-ssp.o



# PXA Machine Support

snd-soc-corgi-objs := corgi.o

sound/soc/pxa/pxa-ssp.c

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+929 −0

File added.

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sound/soc/pxa/pxa-ssp.h

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+47 −0
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/*

 * ASoC PXA SSP port support

 *

 * 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 _PXA_SSP_H

#define _PXA_SSP_H



/* pxa DAI SSP IDs */

#define PXA_DAI_SSP1			0

#define PXA_DAI_SSP2			1

#define PXA_DAI_SSP3			2

#define PXA_DAI_SSP4			3



/* SSP clock sources */

#define PXA_SSP_CLK_PLL	0

#define PXA_SSP_CLK_EXT	1

#define PXA_SSP_CLK_NET	2

#define PXA_SSP_CLK_AUDIO	3

#define PXA_SSP_CLK_NET_PLL	4



/* SSP audio dividers */

#define PXA_SSP_AUDIO_DIV_ACDS		0

#define PXA_SSP_AUDIO_DIV_SCDB		1

#define PXA_SSP_DIV_SCR				2



/* SSP ACDS audio dividers values */

#define PXA_SSP_CLK_AUDIO_DIV_1		0

#define PXA_SSP_CLK_AUDIO_DIV_2		1

#define PXA_SSP_CLK_AUDIO_DIV_4		2

#define PXA_SSP_CLK_AUDIO_DIV_8		3

#define PXA_SSP_CLK_AUDIO_DIV_16	4

#define PXA_SSP_CLK_AUDIO_DIV_32	5



/* SSP divider bypass */

#define PXA_SSP_CLK_SCDB_4		0

#define PXA_SSP_CLK_SCDB_1		1

#define PXA_SSP_CLK_SCDB_8		2



#define PXA_SSP_PLL_OUT  0



extern struct snd_soc_dai pxa_ssp_dai[4];



#endif