ASoC: RX1950: Fix hw_params function

Unfortunatelly, I misunderstood datasheet, and on s3c244x-iis
when MPLLin source for master clock is selected, prescaler has
no effect. Remove dividor calculation for 44100 rate; remove 88200
rate at all, rx1950 can't do it.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/s3c24xx/rx1950_uda1380.c b/sound/soc/s3c24xx/rx1950_uda1380.c
index ffd5cf2..468cc11 100644 (file)
--- a/sound/soc/s3c24xx/rx1950_uda1380.c
+++ b/sound/soc/s3c24xx/rx1950_uda1380.c
@@ -50,7 +50,6 @@ static unsigned int rates[] = {
        16000,
        44100,
        48000,
-       88200,
 };
 
 static struct snd_pcm_hw_constraint_list hw_rates = {
@@ -130,7 +129,6 @@ static const struct snd_soc_dapm_route audio_map[] = {
 };
 
 static struct platform_device *s3c24xx_snd_device;
-static struct clk *xtal;
 
 static int rx1950_startup(struct snd_pcm_substream *substream)
 {
@@ -179,10 +177,8 @@ static int rx1950_hw_params(struct snd_pcm_substream *substream,
        case 44100:
        case 88200:
                clk_source = S3C24XX_CLKSRC_MPLL;
-               fs_mode = S3C2410_IISMOD_256FS;
-               div = clk_get_rate(xtal) / (256 * rate);
-               if (clk_get_rate(xtal) % (256 * rate) > (128 * rate))
-                       div++;
+               fs_mode = S3C2410_IISMOD_384FS;
+               div = 1;
                break;
        default:
                printk(KERN_ERR "%s: rate %d is not supported\n",
@@ -210,7 +206,7 @@ static int rx1950_hw_params(struct snd_pcm_substream *substream,
 
        /* set MCLK division for sample rate */
        ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
-               S3C2410_IISMOD_384FS);
+               fs_mode);
        if (ret < 0)
                return ret;
 
@@ -295,17 +291,8 @@ static int __init rx1950_init(void)
                goto err_plat_add;
        }
 
-       xtal = clk_get(&s3c24xx_snd_device->dev, "xtal");
-
-       if (IS_ERR(xtal)) {
-               ret = PTR_ERR(xtal);
-               platform_device_unregister(s3c24xx_snd_device);
-               goto err_clk;
-       }
-
        return 0;
 
-err_clk:
 err_plat_add:
 err_plat_alloc:
 err_gpio_conf:
@@ -320,7 +307,6 @@ static void __exit rx1950_exit(void)
        platform_device_unregister(s3c24xx_snd_device);
        snd_soc_jack_free_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
                hp_jack_gpios);
-       clk_put(xtal);
        gpio_free(S3C2410_GPA(1));
 }