ASoC: fix SIU driver breakage, occurred during the multi-component transition

This patch fixes multiple bugs and a typo, occurred during the multi-
component transition.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

3 files changed, 32 insertions, 13 deletions

diff --git a/sound/soc/sh/siu.h b/sound/soc/sh/siu.h
index 1c0e1f72e4d4..9f4dcb921ff0 100644
--- a/sound/soc/sh/siu.h
+++ b/sound/soc/sh/siu.h
@@ -98,7 +98,9 @@ enum {
         SIU_CLKB_EXT
 };
 
+struct device;
 struct siu_info {
+        struct device           *dev;
         int                     port_id;
         u32 __iomem             *pram;
         u32 __iomem             *xram;
diff --git a/sound/soc/sh/siu_dai.c b/sound/soc/sh/siu_dai.c
index 827940a8e248..af53b64d8af2 100644
--- a/sound/soc/sh/siu_dai.c
+++ b/sound/soc/sh/siu_dai.c
@@ -71,8 +71,7 @@ struct port_flag {
         struct format_flag      capture;
 };
 
-struct siu_info *siu_i2s_data = NULL;
-EXPORT_SYMBOL_GPL(siu_i2s_data);
+struct siu_info *siu_i2s_data;
 
 static struct port_flag siu_flags[SIU_PORT_NUM] = {
         [SIU_PORT_A] = {
@@ -113,7 +112,7 @@ static void siu_dai_start(struct siu_port *port_info)
         dev_dbg(port_info->pcm->card->dev, "%s\n", __func__);
 
         /* Turn on SIU clock */
-        pm_runtime_get_sync(port_info->pcm->card->dev);
+        pm_runtime_get_sync(info->dev);
 
         /* Issue software reset to siu */
         siu_write32(base + SIU_SRCTL, 0);
@@ -160,7 +159,7 @@ static void siu_dai_stop(struct siu_port *port_info)
         siu_write32(base + SIU_SRCTL, 0);
 
         /* Turn off SIU clock */
-        pm_runtime_put_sync(port_info->pcm->card->dev);
+        pm_runtime_put_sync(info->dev);
 }
 
 static void siu_dai_spbAselect(struct siu_port *port_info)
@@ -675,20 +674,36 @@ static int siu_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
         }
 
         siu_clk = clk_get(dai->dev, siu_name);
-        if (IS_ERR(siu_clk))
+        if (IS_ERR(siu_clk)) {
+                dev_err(dai->dev, "%s: cannot get a SIU clock: %ld\n", __func__,
+                        PTR_ERR(siu_clk));
                 return PTR_ERR(siu_clk);
+        }
 
         parent_clk = clk_get(dai->dev, parent_name);
-        if (!IS_ERR(parent_clk)) {
-                ret = clk_set_parent(siu_clk, parent_clk);
-                if (!ret)
-                        clk_set_rate(siu_clk, freq);
-                clk_put(parent_clk);
+        if (IS_ERR(parent_clk)) {
+                ret = PTR_ERR(parent_clk);
+                dev_err(dai->dev, "cannot get a SIU clock parent: %d\n", ret);
+                goto epclkget;
+        }
+
+        ret = clk_set_parent(siu_clk, parent_clk);
+        if (ret < 0) {
+                dev_err(dai->dev, "cannot reparent the SIU clock: %d\n", ret);
+                goto eclksetp;
         }
 
+        ret = clk_set_rate(siu_clk, freq);
+        if (ret < 0)
+                dev_err(dai->dev, "cannot set SIU clock rate: %d\n", ret);
+
+        /* TODO: when clkdev gets reference counting we'll move these to siu_dai_shutdown() */
+eclksetp:
+        clk_put(parent_clk);
+epclkget:
         clk_put(siu_clk);
 
-        return 0;
+        return ret;
 }
 
 static struct snd_soc_dai_ops siu_dai_ops = {
@@ -700,7 +715,7 @@ static struct snd_soc_dai_ops siu_dai_ops = {
 };
 
 static struct snd_soc_dai_driver siu_i2s_dai = {
-        .name   = "sui-i2s-dai",
+        .name   = "siu-i2s-dai",
         .playback = {
                 .channels_min = 2,
                 .channels_max = 2,
@@ -727,6 +742,7 @@ static int __devinit siu_probe(struct platform_device *pdev)
         if (!info)
                 return -ENOMEM;
         siu_i2s_data = info;
+        info->dev = &pdev->dev;
 
         ret = request_firmware(&fw_entry, "siu_spb.bin", &pdev->dev);
         if (ret)
@@ -828,6 +844,7 @@ static int __devexit siu_remove(struct platform_device *pdev)
 
 static struct platform_driver siu_driver = {
         .driver         = {
+                .owner  = THIS_MODULE,
                 .name   = "siu-pcm-audio",
         },
         .probe          = siu_probe,
diff --git a/sound/soc/sh/siu_pcm.c b/sound/soc/sh/siu_pcm.c
index 440476993325..d6c79fa56d12 100644
--- a/sound/soc/sh/siu_pcm.c
+++ b/sound/soc/sh/siu_pcm.c
@@ -341,7 +341,7 @@ static int siu_pcm_open(struct snd_pcm_substream *ss)
 {
         /* Playback / Capture */
         struct snd_soc_pcm_runtime *rtd = ss->private_data;
-        struct siu_platform *pdata = snd_soc_platform_get_drvdata(rtd->platform);
+        struct siu_platform *pdata = rtd->platform->dev->platform_data;
         struct siu_info *info = siu_i2s_data;
         struct siu_port *port_info = siu_port_info(ss);
         struct siu_stream *siu_stream;