diff options
Diffstat (limited to 'sound/arm')
| -rw-r--r-- | sound/arm/aaci.c | 18 | ||||
| -rw-r--r-- | sound/arm/pxa2xx-ac97-lib.c | 28 | ||||
| -rw-r--r-- | sound/arm/pxa2xx-ac97.c | 6 |
3 files changed, 36 insertions, 16 deletions
diff --git a/sound/arm/aaci.c b/sound/arm/aaci.c index 5119fda..aa5d803 100644 --- a/sound/arm/aaci.c +++ b/sound/arm/aaci.c @@ -786,7 +786,7 @@ static int aaci_resume(struct amba_device *dev) #endif -static struct ac97_pcm ac97_defs[] __devinitdata = { +static struct ac97_pcm ac97_defs[] = { [0] = { /* Front PCM */ .exclusive = 1, .r = { @@ -832,7 +832,7 @@ static struct snd_ac97_bus_ops aaci_bus_ops = { .read = aaci_ac97_read, }; -static int __devinit aaci_probe_ac97(struct aaci *aaci) +static int aaci_probe_ac97(struct aaci *aaci) { struct snd_ac97_template ac97_template; struct snd_ac97_bus *ac97_bus; @@ -893,7 +893,7 @@ static void aaci_free_card(struct snd_card *card) iounmap(aaci->base); } -static struct aaci * __devinit aaci_init_card(struct amba_device *dev) +static struct aaci *aaci_init_card(struct amba_device *dev) { struct aaci *aaci; struct snd_card *card; @@ -926,7 +926,7 @@ static struct aaci * __devinit aaci_init_card(struct amba_device *dev) return aaci; } -static int __devinit aaci_init_pcm(struct aaci *aaci) +static int aaci_init_pcm(struct aaci *aaci) { struct snd_pcm *pcm; int ret; @@ -948,7 +948,7 @@ static int __devinit aaci_init_pcm(struct aaci *aaci) return ret; } -static unsigned int __devinit aaci_size_fifo(struct aaci *aaci) +static unsigned int aaci_size_fifo(struct aaci *aaci) { struct aaci_runtime *aacirun = &aaci->playback; int i; @@ -984,8 +984,8 @@ static unsigned int __devinit aaci_size_fifo(struct aaci *aaci) return i; } -static int __devinit aaci_probe(struct amba_device *dev, - const struct amba_id *id) +static int aaci_probe(struct amba_device *dev, + const struct amba_id *id) { struct aaci *aaci; int ret, i; @@ -1072,7 +1072,7 @@ static int __devinit aaci_probe(struct amba_device *dev, return ret; } -static int __devexit aaci_remove(struct amba_device *dev) +static int aaci_remove(struct amba_device *dev) { struct snd_card *card = amba_get_drvdata(dev); @@ -1104,7 +1104,7 @@ static struct amba_driver aaci_driver = { .name = DRIVER_NAME, }, .probe = aaci_probe, - .remove = __devexit_p(aaci_remove), + .remove = aaci_remove, .suspend = aaci_suspend, .resume = aaci_resume, .id_table = aaci_ids, diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c index 48d7c0a..fff7753 100644 --- a/sound/arm/pxa2xx-ac97-lib.c +++ b/sound/arm/pxa2xx-ac97-lib.c @@ -18,6 +18,7 @@ #include <linux/delay.h> #include <linux/module.h> #include <linux/io.h> +#include <linux/gpio.h> #include <sound/ac97_codec.h> #include <sound/pxa2xx-lib.h> @@ -148,6 +149,8 @@ static inline void pxa_ac97_warm_pxa27x(void) static inline void pxa_ac97_cold_pxa27x(void) { + unsigned int timeout; + GCR &= GCR_COLD_RST; /* clear everything but nCRST */ GCR &= ~GCR_COLD_RST; /* then assert nCRST */ @@ -157,8 +160,10 @@ static inline void pxa_ac97_cold_pxa27x(void) clk_enable(ac97conf_clk); udelay(5); clk_disable(ac97conf_clk); - GCR = GCR_COLD_RST; - udelay(50); + GCR = GCR_COLD_RST | GCR_WARM_RST; + timeout = 100; /* wait for the codec-ready bit to be set */ + while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--) + mdelay(1); } #endif @@ -314,7 +319,7 @@ int pxa2xx_ac97_hw_resume(void) EXPORT_SYMBOL_GPL(pxa2xx_ac97_hw_resume); #endif -int __devinit pxa2xx_ac97_hw_probe(struct platform_device *dev) +int pxa2xx_ac97_hw_probe(struct platform_device *dev) { int ret; pxa2xx_audio_ops_t *pdata = dev->dev.platform_data; @@ -340,8 +345,21 @@ int __devinit pxa2xx_ac97_hw_probe(struct platform_device *dev) } if (cpu_is_pxa27x()) { - /* Use GPIO 113 as AC97 Reset on Bulverde */ + /* + * This gpio is needed for a work-around to a bug in the ac97 + * controller during warm reset. The direction and level is set + * here so that it is an output driven high when switching from + * AC97_nRESET alt function to generic gpio. + */ + ret = gpio_request_one(reset_gpio, GPIOF_OUT_INIT_HIGH, + "pxa27x ac97 reset"); + if (ret < 0) { + pr_err("%s: gpio_request_one() failed: %d\n", + __func__, ret); + goto err_conf; + } pxa27x_assert_ac97reset(reset_gpio, 0); + ac97conf_clk = clk_get(&dev->dev, "AC97CONFCLK"); if (IS_ERR(ac97conf_clk)) { ret = PTR_ERR(ac97conf_clk); @@ -384,6 +402,8 @@ EXPORT_SYMBOL_GPL(pxa2xx_ac97_hw_probe); void pxa2xx_ac97_hw_remove(struct platform_device *dev) { + if (cpu_is_pxa27x()) + gpio_free(reset_gpio); GCR |= GCR_ACLINK_OFF; free_irq(IRQ_AC97, NULL); if (ac97conf_clk) { diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c index 4e1fda7..ec54be4 100644 --- a/sound/arm/pxa2xx-ac97.c +++ b/sound/arm/pxa2xx-ac97.c @@ -163,7 +163,7 @@ static int pxa2xx_ac97_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm_ops, pxa2xx_ac97_suspend, pxa2xx_ac97_resume); #endif -static int __devinit pxa2xx_ac97_probe(struct platform_device *dev) +static int pxa2xx_ac97_probe(struct platform_device *dev) { struct snd_card *card; struct snd_ac97_bus *ac97_bus; @@ -224,7 +224,7 @@ err_dev: return ret; } -static int __devexit pxa2xx_ac97_remove(struct platform_device *dev) +static int pxa2xx_ac97_remove(struct platform_device *dev) { struct snd_card *card = platform_get_drvdata(dev); @@ -239,7 +239,7 @@ static int __devexit pxa2xx_ac97_remove(struct platform_device *dev) static struct platform_driver pxa2xx_ac97_driver = { .probe = pxa2xx_ac97_probe, - .remove = __devexit_p(pxa2xx_ac97_remove), + .remove = pxa2xx_ac97_remove, .driver = { .name = "pxa2xx-ac97", .owner = THIS_MODULE, |
