[ALSA] soc - ln2440sbc ac97 support
This patch adds ac97 support for ln2440sbc board from LittleChips. This board is based on s3c2440 SoC + AC97 Realtek ALC650 codec. Existing s3c2443 implementation is slightly modified because s3c2440 and s3c2443 have different AC97 interrupts. Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Ivan Kuten
Jaroslav Kysela
parent
f651b50b9d
commit
040956fabb
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@ -34,4 +34,12 @@ config SND_S3C24XX_SOC_SMDK2443_WM9710
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Say Y if you want to add support for SoC audio on smdk2443
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with the WM9710.
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config SND_S3C24XX_SOC_LN2440SBC_ALC650
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tristate "SoC AC97 Audio support for LN2440SBC - ALC650"
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depends on SND_S3C24XX_SOC
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select SND_S3C2443_SOC_AC97
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select SND_SOC_AC97_CODEC
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help
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Say Y if you want to add support for SoC audio on ln2440sbc
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with the ALC650.
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@ -10,6 +10,8 @@ obj-$(CONFIG_SND_S3C2443_SOC_AC97) += snd-soc-s3c2443-ac97.o
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# S3C24XX Machine Support
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snd-soc-neo1973-wm8753-objs := neo1973_wm8753.o
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snd-soc-smdk2443-wm9710-objs := smdk2443_wm9710.o
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snd-soc-ln2440sbc-alc650-objs := ln2440sbc_alc650.o
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obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
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obj-$(CONFIG_SND_S3C24XX_SOC_SMDK2443_WM9710) += snd-soc-smdk2443-wm9710.o
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obj-$(CONFIG_SND_S3C24XX_SOC_LN2440SBC_ALC650) += snd-soc-ln2440sbc-alc650.o
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86
sound/soc/s3c24xx/ln2440sbc_alc650.c
Normal file
86
sound/soc/s3c24xx/ln2440sbc_alc650.c
Normal file
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@ -0,0 +1,86 @@
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/*
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* SoC audio for ln2440sbc
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*
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* Copyright 2007 KonekTel, a.s.
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* Author: Ivan Kuten
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* ivan.kuten@promwad.com
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*
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* Heavily based on smdk2443_wm9710.c
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* Copyright 2007 Wolfson Microelectronics PLC.
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* Author: Graeme Gregory
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* graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/module.h>
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#include <linux/device.h>
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#include <sound/driver.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include "../codecs/ac97.h"
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#include "s3c24xx-pcm.h"
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#include "s3c24xx-ac97.h"
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static struct snd_soc_machine ln2440sbc;
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static struct snd_soc_dai_link ln2440sbc_dai[] = {
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{
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.name = "AC97",
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.stream_name = "AC97 HiFi",
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.cpu_dai = &s3c2443_ac97_dai[0],
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.codec_dai = &ac97_dai,
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},
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};
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static struct snd_soc_machine ln2440sbc = {
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.name = "LN2440SBC",
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.dai_link = ln2440sbc_dai,
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.num_links = ARRAY_SIZE(ln2440sbc_dai),
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};
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static struct snd_soc_device ln2440sbc_snd_ac97_devdata = {
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.machine = &ln2440sbc,
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.platform = &s3c24xx_soc_platform,
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.codec_dev = &soc_codec_dev_ac97,
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};
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static struct platform_device *ln2440sbc_snd_ac97_device;
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static int __init ln2440sbc_init(void)
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{
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int ret;
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ln2440sbc_snd_ac97_device = platform_device_alloc("soc-audio", -1);
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if (!ln2440sbc_snd_ac97_device)
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return -ENOMEM;
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platform_set_drvdata(ln2440sbc_snd_ac97_device,
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&ln2440sbc_snd_ac97_devdata);
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ln2440sbc_snd_ac97_devdata.dev = &ln2440sbc_snd_ac97_device->dev;
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ret = platform_device_add(ln2440sbc_snd_ac97_device);
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if (ret)
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platform_device_put(ln2440sbc_snd_ac97_device);
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return ret;
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}
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static void __exit ln2440sbc_exit(void)
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{
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platform_device_unregister(ln2440sbc_snd_ac97_device);
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}
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module_init(ln2440sbc_init);
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module_exit(ln2440sbc_exit);
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/* Module information */
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MODULE_AUTHOR("Ivan Kuten");
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MODULE_DESCRIPTION("ALSA SoC ALC650 LN2440SBC");
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MODULE_LICENSE("GPL");
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@ -253,7 +253,7 @@ static int s3c2443_ac97_probe(struct platform_device *pdev)
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ac_glbctrl |= S3C_AC97_GLBCTRL_TRANSFERDATAENABLE;
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writel(ac_glbctrl, s3c24xx_ac97.regs + S3C_AC97_GLBCTRL);
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ret = request_irq(IRQ_S3C2443_AC97, s3c2443_ac97_irq,
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ret = request_irq(IRQ_S3C244x_AC97, s3c2443_ac97_irq,
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IRQF_DISABLED, "AC97", NULL);
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if (ret < 0) {
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printk(KERN_ERR "s3c24xx-ac97: interrupt request failed.\n");
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@ -266,7 +266,7 @@ static int s3c2443_ac97_probe(struct platform_device *pdev)
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static void s3c2443_ac97_remove(struct platform_device *pdev)
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{
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free_irq(IRQ_S3C2443_AC97, NULL);
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free_irq(IRQ_S3C244x_AC97, NULL);
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clk_disable(s3c24xx_ac97.ac97_clk);
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clk_put(s3c24xx_ac97.ac97_clk);
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iounmap(s3c24xx_ac97.regs);
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@ -20,6 +20,12 @@
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#define AC_CMD_ADDR(x) (x << 16)
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#define AC_CMD_DATA(x) (x & 0xffff)
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#ifdef CONFIG_CPU_S3C2440
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#define IRQ_S3C244x_AC97 IRQ_S3C2440_AC97
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#else
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#define IRQ_S3C244x_AC97 IRQ_S3C2443_AC97
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#endif
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extern struct snd_soc_cpu_dai s3c2443_ac97_dai[];
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#endif /*S3C24XXAC97_H_*/
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