ALSA: vx: Fix missing kerneldoc parameter descriptions

The file isn't processed, but it's not bad to fix beforehand.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/drivers/vx/vx_core.c b/sound/drivers/vx/vx_core.c
index e8cc169..fc05a37 100644
--- a/sound/drivers/vx/vx_core.c
+++ b/sound/drivers/vx/vx_core.c
@@ -416,6 +416,7 @@
 
 /**
  * snd_vx_boot_xilinx - boot up the xilinx interface
+ * @chip: VX core instance
  * @boot: the boot record to load
  */
 int snd_vx_load_boot_image(struct vx_core *chip, const struct firmware *boot)
@@ -538,6 +539,8 @@
 
 /**
  * snd_vx_irq_handler - interrupt handler
+ * @irq: irq number
+ * @dev: VX core instance
  */
 irqreturn_t snd_vx_irq_handler(int irq, void *dev)
 {
@@ -649,6 +652,8 @@
 
 /**
  * snd_vx_dsp_boot - load the DSP boot
+ * @chip: VX core instance
+ * @boot: firmware data
  */
 int snd_vx_dsp_boot(struct vx_core *chip, const struct firmware *boot)
 {
@@ -669,6 +674,8 @@
 
 /**
  * snd_vx_dsp_load - load the DSP image
+ * @chip: VX core instance
+ * @dsp: firmware data
  */
 int snd_vx_dsp_load(struct vx_core *chip, const struct firmware *dsp)
 {
@@ -768,7 +775,10 @@
 
 /**
  * snd_vx_create - constructor for struct vx_core
+ * @card: card instance
  * @hw: hardware specific record
+ * @ops: VX ops pointer
+ * @extra_size: extra byte size to allocate appending to chip
  *
  * this function allocates the instance and prepare for the hardware
  * initialization.