ALSA: lx6464es: Remove unused function in pci/lx6464es/lx_core.c

Remove unused function in pci/lx6464es/lx_core.c.

This eliminates the following warning in pci/lx6464es/lx_core.c:
sound/pci/lx6464es/lx_core.c:144:5: warning: no previous prototype for ‘lx_plx_mbox_read’ [-Wmissing-prototypes]
sound/pci/lx6464es/lx_core.c:172:5: warning: no previous prototype for ‘lx_plx_mbox_write’ [-Wmissing-prototypes]
sound/pci/lx6464es/lx_core.c:494:5: warning: no previous prototype for ‘lx_dsp_es_check_pipeline’ [-Wmissing-prototypes]

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/lx6464es/lx_core.c

@@ -141,63 +141,6 @@ void lx_plx_reg_write(struct lx6464es *chip, int port, u32 data)
 	iowrite32(data, address);
 }
 
-u32 lx_plx_mbox_read(struct lx6464es *chip, int mbox_nr)
-{
-	int index;
-
-	switch (mbox_nr) {
-	case 1:
-		index = ePLX_MBOX1;    break;
-	case 2:
-		index = ePLX_MBOX2;    break;
-	case 3:
-		index = ePLX_MBOX3;    break;
-	case 4:
-		index = ePLX_MBOX4;    break;
-	case 5:
-		index = ePLX_MBOX5;    break;
-	case 6:
-		index = ePLX_MBOX6;    break;
-	case 7:
-		index = ePLX_MBOX7;    break;
-	case 0:			/* reserved for HF flags */
-		snd_BUG();
-	default:
-		return 0xdeadbeef;
-	}
-
-	return lx_plx_reg_read(chip, index);
-}
-
-int lx_plx_mbox_write(struct lx6464es *chip, int mbox_nr, u32 value)
-{
-	int index = -1;
-
-	switch (mbox_nr) {
-	case 1:
-		index = ePLX_MBOX1;    break;
-	case 3:
-		index = ePLX_MBOX3;    break;
-	case 4:
-		index = ePLX_MBOX4;    break;
-	case 5:
-		index = ePLX_MBOX5;    break;
-	case 6:
-		index = ePLX_MBOX6;    break;
-	case 7:
-		index = ePLX_MBOX7;    break;
-	case 0:			/* reserved for HF flags */
-	case 2:			/* reserved for Pipe States
-				 * the DSP keeps an image of it */
-		snd_BUG();
-		return -EBADRQC;
-	}
-
-	lx_plx_reg_write(chip, index, value);
-	return 0;
-}
-
-
 /* rmh */
 
 #ifdef CONFIG_SND_DEBUG
@@ -491,33 +434,6 @@ int lx_dsp_read_async_events(struct lx6464es *chip, u32 *data)
 #define CSES_BROADCAST      0x0002
 #define CSES_UPDATE_LDSV    0x0004
 
-int lx_dsp_es_check_pipeline(struct lx6464es *chip)
-{
-	int i;
-
-	for (i = 0; i != CSES_TIMEOUT; ++i) {
-		/*
-		 * le bit CSES_UPDATE_LDSV est à 1 dés que le macprog
-		 * est pret. il re-passe à 0 lorsque le premier read a
-		 * été fait. pour l'instant on retire le test car ce bit
-		 * passe a 1 environ 200 à 400 ms aprés que le registre
-		 * confES à été écrit (kick du xilinx ES).
-		 *
-		 * On ne teste que le bit CE.
-		 * */
-
-		u32 cses = lx_dsp_reg_read(chip, eReg_CSES);
-
-		if ((cses & CSES_CE) == 0)
-			return 0;
-
-		udelay(1);
-	}
-
-	return -ETIMEDOUT;
-}
-
-
 #define PIPE_INFO_TO_CMD(capture, pipe)					\
 	((u32)((u32)(pipe) | ((capture) ? ID_IS_CAPTURE : 0L)) << ID_OFFSET)