ASoC: Add machine driver for Visstrim_M10 board. (841a451f) · Commits · e / devices / android_kernel_fairphone_FP4

sound/soc/imx/Kconfig

+10 −0

Original line number	Diff line number	Diff line
		@@ -30,6 +30,16 @@ config SND_MXC_SOC_WM1133_EV1
		Enable support for audio on the i.MX31ADS with the WM1133-EV1
		PMIC board with WM8835x fitted.

		config SND_SOC_MX27VIS_AIC32X4
		tristate "SoC audio support for Visstrim M10 boards"
		depends on MACH_IMX27_VISSTRIM_M10
		select SND_SOC_TVL320AIC32X4
		select SND_MXC_SOC_SSI
		select SND_MXC_SOC_MX2
		help
		Say Y if you want to add support for SoC audio on Visstrim SM10
		board with TLV320AIC32X4 codec.

		config SND_SOC_PHYCORE_AC97
		tristate "SoC Audio support for Phytec phyCORE (and phyCARD) boards"
		depends on MACH_PCM043 \|\| MACH_PCA100

sound/soc/imx/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -10,8 +10,10 @@ obj-$(CONFIG_SND_MXC_SOC_MX2) += snd-soc-imx-mx2.o
		# i.MX Machine Support
		snd-soc-eukrea-tlv320-objs := eukrea-tlv320.o
		snd-soc-phycore-ac97-objs := phycore-ac97.o
		snd-soc-mx27vis-aic32x4-objs := mx27vis-aic32x4.o
		snd-soc-wm1133-ev1-objs := wm1133-ev1.o

		obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o
		obj-$(CONFIG_SND_SOC_PHYCORE_AC97) += snd-soc-phycore-ac97.o
		obj-$(CONFIG_SND_SOC_MX27VIS_AIC32X4) += snd-soc-mx27vis-aic32x4.o
		obj-$(CONFIG_SND_MXC_SOC_WM1133_EV1) += snd-soc-wm1133-ev1.o

sound/soc/imx/mx27vis-aic32x4.c

0 → 100644

+137 −0

Original line number	Diff line number	Diff line
		/*
		* mx27vis-aic32x4.c
		*
		* Copyright 2011 Vista Silicon S.L.
		*
		* Author: Javier Martin <javier.martin@vista-silicon.com>
		*
		* This program is free software; you can redistribute it and/or modify it
		* under the terms of the GNU General Public License as published by the
		* Free Software Foundation; either version 2 of the License, or (at your
		* option) any later version.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program; if not, write to the Free Software
		* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
		* MA 02110-1301, USA.
		*/

		#include <linux/module.h>
		#include <linux/moduleparam.h>
		#include <linux/device.h>
		#include <linux/i2c.h>
		#include <sound/core.h>
		#include <sound/pcm.h>
		#include <sound/soc.h>
		#include <sound/soc-dapm.h>
		#include <asm/mach-types.h>
		#include <mach/audmux.h>

		#include "../codecs/tlv320aic32x4.h"
		#include "imx-ssi.h"

		static int mx27vis_aic32x4_hw_params(struct snd_pcm_substream *substream,
		struct snd_pcm_hw_params *params)
		{
		struct snd_soc_pcm_runtime *rtd = substream->private_data;
		struct snd_soc_dai *codec_dai = rtd->codec_dai;
		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
		int ret;
		u32 dai_format;

		dai_format = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_NB_NF \|
		SND_SOC_DAIFMT_CBM_CFM;

		/* set codec DAI configuration */
		snd_soc_dai_set_fmt(codec_dai, dai_format);

		/* set cpu DAI configuration */
		snd_soc_dai_set_fmt(cpu_dai, dai_format);

		ret = snd_soc_dai_set_sysclk(codec_dai, 0,
		25000000, SND_SOC_CLOCK_OUT);
		if (ret) {
		pr_err("%s: failed setting codec sysclk\n", __func__);
		return ret;
		}

		ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
		SND_SOC_CLOCK_IN);
		if (ret) {
		pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
		return ret;
		}

		return 0;
		}

		static struct snd_soc_ops mx27vis_aic32x4_snd_ops = {
		.hw_params = mx27vis_aic32x4_hw_params,
		};

		static struct snd_soc_dai_link mx27vis_aic32x4_dai = {
		.name = "tlv320aic32x4",
		.stream_name = "TLV320AIC32X4",
		.codec_dai_name = "tlv320aic32x4-hifi",
		.platform_name = "imx-pcm-audio.0",
		.codec_name = "tlv320aic32x4.0-0018",
		.cpu_dai_name = "imx-ssi.0",
		.ops = &mx27vis_aic32x4_snd_ops,
		};

		static struct snd_soc_card mx27vis_aic32x4 = {
		.name = "visstrim_m10-audio",
		.dai_link = &mx27vis_aic32x4_dai,
		.num_links = 1,
		};

		static struct platform_device *mx27vis_aic32x4_snd_device;

		static int __init mx27vis_aic32x4_init(void)
		{
		int ret;

		mx27vis_aic32x4_snd_device = platform_device_alloc("soc-audio", -1);
		if (!mx27vis_aic32x4_snd_device)
		return -ENOMEM;

		platform_set_drvdata(mx27vis_aic32x4_snd_device, &mx27vis_aic32x4);
		ret = platform_device_add(mx27vis_aic32x4_snd_device);

		if (ret) {
		printk(KERN_ERR "ASoC: Platform device allocation failed\n");
		platform_device_put(mx27vis_aic32x4_snd_device);
		}

		/* Connect SSI0 as clock slave to SSI1 external pins */
		mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
		MXC_AUDMUX_V1_PCR_SYN \|
		MXC_AUDMUX_V1_PCR_TFSDIR \|
		MXC_AUDMUX_V1_PCR_TCLKDIR \|
		MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) \|
		MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1)
		);
		mxc_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1,
		MXC_AUDMUX_V1_PCR_SYN \|
		MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
		);

		return ret;
		}

		static void __exit mx27vis_aic32x4_exit(void)
		{
		platform_device_unregister(mx27vis_aic32x4_snd_device);
		}

		module_init(mx27vis_aic32x4_init);
		module_exit(mx27vis_aic32x4_exit);

		MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>");
		MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim");
		MODULE_LICENSE("GPL");