ASoC: stm32: i2s: use default dai name

Use default DAI name based on dev_name function.
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/stm/stm32_i2s.c

@@ -179,7 +179,6 @@ enum i2s_datlen {
 	I2S_I2SMOD_DATLEN_32,
 };
 
-#define STM32_I2S_DAI_NAME_SIZE		20
 #define STM32_I2S_FIFO_SIZE		16
 
 #define STM32_I2S_IS_MASTER(x)		((x)->ms_flg == I2S_MS_MASTER)
@@ -202,7 +201,6 @@ enum i2s_datlen {
  * @phys_addr: I2S registers physical base address
  * @lock_fd: lock to manage race conditions in full duplex mode
  * @irq_lock: prevent race condition with IRQ
- * @dais_name: DAI name
  * @mclk_rate: master clock frequency (Hz)
  * @fmt: DAI protocol
  * @refcount: keep count of opened streams on I2S
@@ -224,7 +222,6 @@ struct stm32_i2s_data {
 	dma_addr_t phys_addr;
 	spinlock_t lock_fd; /* Manage race conditions for full duplex */
 	spinlock_t irq_lock; /* used to prevent race condition with IRQ */
-	char dais_name[STM32_I2S_DAI_NAME_SIZE];
 	unsigned int mclk_rate;
 	unsigned int fmt;
 	int refcount;
@@ -771,12 +768,8 @@ static int stm32_i2s_dais_init(struct platform_device *pdev,
 	if (!dai_ptr)
 		return -ENOMEM;
 
-	snprintf(i2s->dais_name, STM32_I2S_DAI_NAME_SIZE,
-		 "%s", dev_name(&pdev->dev));
-
 	dai_ptr->probe = stm32_i2s_dai_probe;
 	dai_ptr->ops = &stm32_i2s_pcm_dai_ops;
-	dai_ptr->name = i2s->dais_name;
 	dai_ptr->id = 1;
 	stm32_i2s_dai_init(&dai_ptr->playback, "playback");
 	stm32_i2s_dai_init(&dai_ptr->capture, "capture");