From 4ac0478f2afaf8e778b4190d6218459a9dbf2a8f Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Thu, 30 Jul 2009 02:55:01 +0200 Subject: [PATCH] ALSA: Allow passing platform_data for pxa2xx-ac97 This patch adds support for passing platform data to ac97 bus devices from PXA2xx-AC97 driver.. Signed-off-by: Marek Vasut Signed-off-by: Mark Brown --- arch/arm/mach-pxa/include/mach/audio.h | 3 +++ include/sound/ac97_codec.h | 3 +++ sound/arm/pxa2xx-ac97.c | 10 ++++++++++ sound/soc/pxa/pxa2xx-ac97.c | 12 +++++++++++- 4 files changed, 27 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-pxa/include/mach/audio.h b/arch/arm/mach-pxa/include/mach/audio.h index 16eb02552d5d..a3449e35a6f5 100644 --- a/arch/arm/mach-pxa/include/mach/audio.h +++ b/arch/arm/mach-pxa/include/mach/audio.h @@ -3,10 +3,12 @@ #include #include +#include /* * @reset_gpio: AC97 reset gpio (normally gpio113 or gpio95) * a -1 value means no gpio will be used for reset + * @codec_pdata: AC97 codec platform_data * reset_gpio should only be specified for pxa27x CPUs where a silicon * bug prevents correct operation of the reset line. If not specified, @@ -20,6 +22,7 @@ typedef struct { void (*resume)(void *); void *priv; int reset_gpio; + void *codec_pdata[AC97_BUS_MAX_DEVICES]; } pxa2xx_audio_ops_t; extern void pxa_set_ac97_info(pxa2xx_audio_ops_t *ops); diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h index 9b1c0985480c..3dae3f799b9b 100644 --- a/include/sound/ac97_codec.h +++ b/include/sound/ac97_codec.h @@ -32,6 +32,9 @@ #include "control.h" #include "info.h" +/* maximum number of devices on the AC97 bus */ +#define AC97_BUS_MAX_DEVICES 4 + /* * AC'97 codec registers */ diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c index c570ebd9d177..6c00ea45d5cb 100644 --- a/sound/arm/pxa2xx-ac97.c +++ b/sound/arm/pxa2xx-ac97.c @@ -170,6 +170,13 @@ static int __devinit pxa2xx_ac97_probe(struct platform_device *dev) struct snd_ac97_bus *ac97_bus; struct snd_ac97_template ac97_template; int ret; + pxa2xx_audio_ops_t *pdata = dev->dev.platform_data; + + if (dev->id >= 0) { + dev_err(&dev->dev, "PXA2xx has only one AC97 port.\n"); + ret = -ENXIO; + goto err_dev; + } ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1, THIS_MODULE, 0, &card); @@ -200,6 +207,8 @@ static int __devinit pxa2xx_ac97_probe(struct platform_device *dev) snprintf(card->longname, sizeof(card->longname), "%s (%s)", dev->dev.driver->name, card->mixername); + if (pdata && pdata->codec_data) + snd_ac97_dev_add_pdata(ac97_bus->codec[0], pdata->codec_pdata); snd_card_set_dev(card, &dev->dev); ret = snd_card_register(card); if (ret == 0) { @@ -212,6 +221,7 @@ err_remove: err: if (card) snd_card_free(card); +err_dev: return ret; } diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c index d9c94d71fa61..7330e5c5b9df 100644 --- a/sound/soc/pxa/pxa2xx-ac97.c +++ b/sound/soc/pxa/pxa2xx-ac97.c @@ -22,6 +22,7 @@ #include #include #include +#include #include "pxa2xx-pcm.h" #include "pxa2xx-ac97.h" @@ -241,9 +242,18 @@ EXPORT_SYMBOL_GPL(soc_ac97_ops); static int __devinit pxa2xx_ac97_dev_probe(struct platform_device *pdev) { int i; + pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data; - for (i = 0; i < ARRAY_SIZE(pxa_ac97_dai); i++) + if (pdev->id >= 0) { + dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n"); + return -ENXIO; + } + + for (i = 0; i < ARRAY_SIZE(pxa_ac97_dai); i++) { pxa_ac97_dai[i].dev = &pdev->dev; + if (pdata && pdata->codec_pdata) + pxa_ac97_dai[i].ac97_pdata = pdata->codec_pdata; + } /* Punt most of the init to the SoC probe; we may need the machine * driver to do interesting things with the clocking to get us up -- 2.20.1