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authorSylwester Nawrocki <s.nawrocki@samsung.com>2019-02-19 16:19:41 +0100
committerMark Brown <broonie@kernel.org>2019-02-19 15:49:42 +0000
commitc6bebefa2f0603fb21ae329521e15461b0486679 (patch)
treea836514595964d7d3c072976d5d57fb5a49e9b49 /sound/soc
parent022c4156697b9ae30a00f5cd7cee08ed61554e86 (diff)
downloadlinux-stericsson-c6bebefa2f0603fb21ae329521e15461b0486679.tar.gz
ASoC: samsung: i2s: Fix multiple "IIS multi" devices initialization
On some SoCs (e.g. Exynos5433) there are multiple "IIS multi audio interfaces" and the driver will try to register there multiple times same platform device for the secondary FIFO, which of course fails miserably. To fix this we derive the secondary platform device name from the primary device name. The secondary device name will now be <primary_dev_name>-sec instead of fixed "samsung-i2s-sec". The fixed platform_device_id table entry is removed as the secondary device name is now dynamic and device/driver matching is done through driver_override. Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Suggested-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc')
-rw-r--r--sound/soc/samsung/i2s.c50
-rw-r--r--sound/soc/samsung/odroid.c2
2 files changed, 34 insertions, 18 deletions
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index cd92bb6e1da1..4231001226f4 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -1339,20 +1339,35 @@ static int i2s_register_clock_provider(struct samsung_i2s_priv *priv)
/* Create platform device for the secondary PCM */
static int i2s_create_secondary_device(struct samsung_i2s_priv *priv)
{
- struct platform_device *pdev;
+ struct platform_device *pdev_sec;
+ const char *devname;
int ret;
- pdev = platform_device_register_simple("samsung-i2s-sec", -1, NULL, 0);
- if (!pdev)
+ devname = devm_kasprintf(&priv->pdev->dev, GFP_KERNEL, "%s-sec",
+ dev_name(&priv->pdev->dev));
+ if (!devname)
return -ENOMEM;
- ret = device_attach(&pdev->dev);
+ pdev_sec = platform_device_alloc(devname, -1);
+ if (!pdev_sec)
+ return -ENOMEM;
+
+ pdev_sec->driver_override = kstrdup("samsung-i2s", GFP_KERNEL);
+
+ ret = platform_device_add(pdev_sec);
if (ret < 0) {
- dev_info(&pdev->dev, "device_attach() failed\n");
+ platform_device_put(pdev_sec);
return ret;
}
- priv->pdev_sec = pdev;
+ ret = device_attach(&pdev_sec->dev);
+ if (ret <= 0) {
+ platform_device_unregister(priv->pdev_sec);
+ dev_info(&pdev_sec->dev, "device_attach() failed\n");
+ return ret;
+ }
+
+ priv->pdev_sec = pdev_sec;
return 0;
}
@@ -1367,22 +1382,25 @@ static int samsung_i2s_probe(struct platform_device *pdev)
{
struct i2s_dai *pri_dai, *sec_dai = NULL;
struct s3c_audio_pdata *i2s_pdata = pdev->dev.platform_data;
- struct resource *res;
u32 regs_base, idma_addr = 0;
struct device_node *np = pdev->dev.of_node;
const struct samsung_i2s_dai_data *i2s_dai_data;
- int num_dais, ret;
+ const struct platform_device_id *id;
struct samsung_i2s_priv *priv;
+ struct resource *res;
+ int num_dais, ret;
- if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node)
+ if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) {
i2s_dai_data = of_device_get_match_data(&pdev->dev);
- else
- i2s_dai_data = (struct samsung_i2s_dai_data *)
- platform_get_device_id(pdev)->driver_data;
+ } else {
+ id = platform_get_device_id(pdev);
- /* Nothing to do if it is the secondary device probe */
- if (!i2s_dai_data)
- return 0;
+ /* Nothing to do if it is the secondary device probe */
+ if (!id)
+ return 0;
+
+ i2s_dai_data = (struct samsung_i2s_dai_data *)id->driver_data;
+ }
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@@ -1637,8 +1655,6 @@ static const struct platform_device_id samsung_i2s_driver_ids[] = {
{
.name = "samsung-i2s",
.driver_data = (kernel_ulong_t)&i2sv3_dai_type,
- }, {
- .name = "samsung-i2s-sec",
},
{},
};
diff --git a/sound/soc/samsung/odroid.c b/sound/soc/samsung/odroid.c
index 5b2bcd1d3450..bd2c5163dc7f 100644
--- a/sound/soc/samsung/odroid.c
+++ b/sound/soc/samsung/odroid.c
@@ -185,7 +185,7 @@ static struct snd_soc_dai_link odroid_card_dais[] = {
.ops = &odroid_card_fe_ops,
.name = "Secondary",
.stream_name = "Secondary",
- .platform_name = "samsung-i2s-sec",
+ .platform_name = "3830000.i2s-sec",
.dynamic = 1,
.dpcm_playback = 1,
}