diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index 14b1277..e9086e9 100644
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -62,49 +62,47 @@
 MODULE_SUPPORTED_DEVICE("{{Sun,CS4231}}");
 
 #ifdef SBUS_SUPPORT
-typedef struct sbus_dma_info {
+struct sbus_dma_info {
        spinlock_t      lock;
        int             dir;
        void __iomem    *regs;
-} sbus_dma_info_t;
+};
 #endif
 
-typedef struct snd_cs4231 cs4231_t;
-
-typedef struct cs4231_dma_control {
+struct cs4231_dma_control {
         void		(*prepare)(struct cs4231_dma_control *dma_cont, int dir);
         void		(*enable)(struct cs4231_dma_control *dma_cont, int on);
         int		(*request)(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len);
         unsigned int	(*address)(struct cs4231_dma_control *dma_cont);
-        void		(*reset)(cs4231_t *chip); 
-        void		(*preallocate)(cs4231_t *chip, snd_pcm_t *pcm); 
+        void		(*reset)(struct snd_cs4231 *chip); 
+        void		(*preallocate)(struct snd_cs4231 *chip, struct snd_snd_pcm *pcm); 
 #ifdef EBUS_SUPPORT
 	struct		ebus_dma_info	ebus_info;
 #endif
 #ifdef SBUS_SUPPORT
 	struct		sbus_dma_info	sbus_info;
 #endif
-} cs4231_dma_control_t;
+};
 
 struct snd_cs4231 {
 	spinlock_t		lock;
 	void __iomem		*port;
 
-	cs4231_dma_control_t	p_dma;
-	cs4231_dma_control_t	c_dma;
+	struct cs4231_dma_control	p_dma;
+	struct cs4231_dma_control	c_dma;
 
 	u32			flags;
 #define CS4231_FLAG_EBUS	0x00000001
 #define CS4231_FLAG_PLAYBACK	0x00000002
 #define CS4231_FLAG_CAPTURE	0x00000004
 
-	snd_card_t		*card;
-	snd_pcm_t		*pcm;
-	snd_pcm_substream_t	*playback_substream;
+	struct snd_card		*card;
+	struct snd_pcm		*pcm;
+	struct snd_pcm_substream	*playback_substream;
 	unsigned int		p_periods_sent;
-	snd_pcm_substream_t	*capture_substream;
+	struct snd_pcm_substream	*capture_substream;
 	unsigned int		c_periods_sent;
-	snd_timer_t		*timer;
+	struct snd_timer	*timer;
 
 	unsigned short mode;
 #define CS4231_MODE_NONE	0x0000
@@ -132,7 +130,7 @@
 	struct snd_cs4231	*next;
 };
 
-static cs4231_t *cs4231_list;
+static struct snd_cs4231 *cs4231_list;
 
 /* Eventually we can use sound/isa/cs423x/cs4231_lib.c directly, but for
  * now....  -DaveM
@@ -341,12 +339,12 @@
 	27042, 32000, 33075, 37800, 44100, 48000
 };
 
-static snd_pcm_hw_constraint_list_t hw_constraints_rates = {
+static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
 	.count	= 14,
 	.list	= rates,
 };
 
-static int snd_cs4231_xrate(snd_pcm_runtime_t *runtime)
+static int snd_cs4231_xrate(struct snd_pcm_runtime *runtime)
 {
 	return snd_pcm_hw_constraint_list(runtime, 0,
 					  SNDRV_PCM_HW_PARAM_RATE,
@@ -389,7 +387,7 @@
 	0x00,			/* 1f/31 - cbrl */
 };
 
-static u8 __cs4231_readb(cs4231_t *cp, void __iomem *reg_addr)
+static u8 __cs4231_readb(struct snd_cs4231 *cp, void __iomem *reg_addr)
 {
 #ifdef EBUS_SUPPORT
 	if (cp->flags & CS4231_FLAG_EBUS) {
@@ -404,7 +402,7 @@
 #endif
 }
 
-static void __cs4231_writeb(cs4231_t *cp, u8 val, void __iomem *reg_addr)
+static void __cs4231_writeb(struct snd_cs4231 *cp, u8 val, void __iomem *reg_addr)
 {
 #ifdef EBUS_SUPPORT
 	if (cp->flags & CS4231_FLAG_EBUS) {
@@ -423,7 +421,7 @@
  *  Basic I/O functions
  */
 
-static void snd_cs4231_outm(cs4231_t *chip, unsigned char reg,
+static void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg,
 		     unsigned char mask, unsigned char value)
 {
 	int timeout;
@@ -450,7 +448,7 @@
 	}
 }
 
-static void snd_cs4231_dout(cs4231_t *chip, unsigned char reg, unsigned char value)
+static void snd_cs4231_dout(struct snd_cs4231 *chip, unsigned char reg, unsigned char value)
 {
 	int timeout;
 
@@ -467,7 +465,7 @@
 	mb();
 }
 
-static void snd_cs4231_out(cs4231_t *chip, unsigned char reg, unsigned char value)
+static void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char value)
 {
 	int timeout;
 
@@ -485,7 +483,7 @@
 	mb();
 }
 
-static unsigned char snd_cs4231_in(cs4231_t *chip, unsigned char reg)
+static unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg)
 {
 	int timeout;
 	unsigned char ret;
@@ -508,7 +506,7 @@
  *  CS4231 detection / MCE routines
  */
 
-static void snd_cs4231_busy_wait(cs4231_t *chip)
+static void snd_cs4231_busy_wait(struct snd_cs4231 *chip)
 {
 	int timeout;
 
@@ -523,7 +521,7 @@
 	     	udelay(1000);
 }
 
-static void snd_cs4231_mce_up(cs4231_t *chip)
+static void snd_cs4231_mce_up(struct snd_cs4231 *chip)
 {
 	unsigned long flags;
 	int timeout;
@@ -544,7 +542,7 @@
 	spin_unlock_irqrestore(&chip->lock, flags);
 }
 
-static void snd_cs4231_mce_down(cs4231_t *chip)
+static void snd_cs4231_mce_down(struct snd_cs4231 *chip)
 {
 	unsigned long flags;
 	int timeout;
@@ -602,9 +600,11 @@
 	spin_unlock_irqrestore(&chip->lock, flags);
 }
 
-static void snd_cs4231_advance_dma(struct cs4231_dma_control *dma_cont, snd_pcm_substream_t *substream, unsigned int *periods_sent)
+static void snd_cs4231_advance_dma(struct cs4231_dma_control *dma_cont,
+				   struct snd_pcm_substream *substream,
+				   unsigned int *periods_sent)
 {
-	snd_pcm_runtime_t *runtime = substream->runtime;
+	struct snd_pcm_runtime *runtime = substream->runtime;
 
 	while (1) {
 		unsigned int period_size = snd_pcm_lib_period_bytes(substream);
@@ -619,10 +619,11 @@
 	}
 }
 
-static void cs4231_dma_trigger(snd_pcm_substream_t *substream, unsigned int what, int on)
+static void cs4231_dma_trigger(struct snd_pcm_substream *substream,
+			       unsigned int what, int on)
 {
-	cs4231_t *chip = snd_pcm_substream_chip(substream);
-	cs4231_dma_control_t *dma_cont;
+	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
+	struct cs4231_dma_control *dma_cont;
 
 	if (what & CS4231_PLAYBACK_ENABLE) {
 		dma_cont = &chip->p_dma;
@@ -650,9 +651,9 @@
 	}
 }
 
-static int snd_cs4231_trigger(snd_pcm_substream_t *substream, int cmd)
+static int snd_cs4231_trigger(struct snd_pcm_substream *substream, int cmd)
 {
-	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 	int result = 0;
 
 	switch (cmd) {
@@ -660,7 +661,7 @@
 	case SNDRV_PCM_TRIGGER_STOP:
 	{
 		unsigned int what = 0;
-		snd_pcm_substream_t *s;
+		struct snd_pcm_substream *s;
 		struct list_head *pos;
 		unsigned long flags;
 
@@ -711,7 +712,7 @@
 	return freq_bits[13];
 }
 
-static unsigned char snd_cs4231_get_format(cs4231_t *chip, int format, int channels)
+static unsigned char snd_cs4231_get_format(struct snd_cs4231 *chip, int format, int channels)
 {
 	unsigned char rformat;
 
@@ -728,7 +729,7 @@
 	return rformat;
 }
 
-static void snd_cs4231_calibrate_mute(cs4231_t *chip, int mute)
+static void snd_cs4231_calibrate_mute(struct snd_cs4231 *chip, int mute)
 {
 	unsigned long flags;
 
@@ -768,7 +769,7 @@
 	spin_unlock_irqrestore(&chip->lock, flags);
 }
 
-static void snd_cs4231_playback_format(cs4231_t *chip, snd_pcm_hw_params_t *params,
+static void snd_cs4231_playback_format(struct snd_cs4231 *chip, struct snd_pcm_hw_params *params,
 				       unsigned char pdfr)
 {
 	unsigned long flags;
@@ -791,7 +792,7 @@
 	up(&chip->mce_mutex);
 }
 
-static void snd_cs4231_capture_format(cs4231_t *chip, snd_pcm_hw_params_t *params,
+static void snd_cs4231_capture_format(struct snd_cs4231 *chip, struct snd_pcm_hw_params *params,
                                       unsigned char cdfr)
 {
 	unsigned long flags;
@@ -824,18 +825,18 @@
  *  Timer interface
  */
 
-static unsigned long snd_cs4231_timer_resolution(snd_timer_t *timer)
+static unsigned long snd_cs4231_timer_resolution(struct snd_timer *timer)
 {
-	cs4231_t *chip = snd_timer_chip(timer);
+	struct snd_cs4231 *chip = snd_timer_chip(timer);
 
 	return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920;
 }
 
-static int snd_cs4231_timer_start(snd_timer_t *timer)
+static int snd_cs4231_timer_start(struct snd_timer *timer)
 {
 	unsigned long flags;
 	unsigned int ticks;
-	cs4231_t *chip = snd_timer_chip(timer);
+	struct snd_cs4231 *chip = snd_timer_chip(timer);
 
 	spin_lock_irqsave(&chip->lock, flags);
 	ticks = timer->sticks;
@@ -856,10 +857,10 @@
 	return 0;
 }
 
-static int snd_cs4231_timer_stop(snd_timer_t *timer)
+static int snd_cs4231_timer_stop(struct snd_timer *timer)
 {
 	unsigned long flags;
-	cs4231_t *chip = snd_timer_chip(timer);
+	struct snd_cs4231 *chip = snd_timer_chip(timer);
 
 	spin_lock_irqsave(&chip->lock, flags);
 	snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
@@ -869,7 +870,7 @@
 	return 0;
 }
 
-static void snd_cs4231_init(cs4231_t *chip)
+static void __init snd_cs4231_init(struct snd_cs4231 *chip)
 {
 	unsigned long flags;
 
@@ -927,7 +928,7 @@
 #endif
 }
 
-static int snd_cs4231_open(cs4231_t *chip, unsigned int mode)
+static int snd_cs4231_open(struct snd_cs4231 *chip, unsigned int mode)
 {
 	unsigned long flags;
 
@@ -962,7 +963,7 @@
 	return 0;
 }
 
-static void snd_cs4231_close(cs4231_t *chip, unsigned int mode)
+static void snd_cs4231_close(struct snd_cs4231 *chip, unsigned int mode)
 {
 	unsigned long flags;
 
@@ -1013,21 +1014,21 @@
  *  timer open/close
  */
 
-static int snd_cs4231_timer_open(snd_timer_t *timer)
+static int snd_cs4231_timer_open(struct snd_timer *timer)
 {
-	cs4231_t *chip = snd_timer_chip(timer);
+	struct snd_cs4231 *chip = snd_timer_chip(timer);
 	snd_cs4231_open(chip, CS4231_MODE_TIMER);
 	return 0;
 }
 
-static int snd_cs4231_timer_close(snd_timer_t * timer)
+static int snd_cs4231_timer_close(struct snd_timer * timer)
 {
-	cs4231_t *chip = snd_timer_chip(timer);
+	struct snd_cs4231 *chip = snd_timer_chip(timer);
 	snd_cs4231_close(chip, CS4231_MODE_TIMER);
 	return 0;
 }
 
-static struct _snd_timer_hardware snd_cs4231_timer_table =
+static struct snd_timer_hardware snd_cs4231_timer_table =
 {
 	.flags		=	SNDRV_TIMER_HW_AUTO,
 	.resolution	=	9945,
@@ -1043,10 +1044,10 @@
  *  ok.. exported functions..
  */
 
-static int snd_cs4231_playback_hw_params(snd_pcm_substream_t *substream,
-					 snd_pcm_hw_params_t *hw_params)
+static int snd_cs4231_playback_hw_params(struct snd_pcm_substream *substream,
+					 struct snd_pcm_hw_params *hw_params)
 {
-	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 	unsigned char new_pdfr;
 	int err;
 
@@ -1061,15 +1062,15 @@
 	return 0;
 }
 
-static int snd_cs4231_playback_hw_free(snd_pcm_substream_t *substream)
+static int snd_cs4231_playback_hw_free(struct snd_pcm_substream *substream)
 {
 	return snd_pcm_lib_free_pages(substream);
 }
 
-static int snd_cs4231_playback_prepare(snd_pcm_substream_t *substream)
+static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
 {
-	cs4231_t *chip = snd_pcm_substream_chip(substream);
-	snd_pcm_runtime_t *runtime = substream->runtime;
+	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
 	unsigned long flags;
 
 	spin_lock_irqsave(&chip->lock, flags);
@@ -1086,10 +1087,10 @@
 	return 0;
 }
 
-static int snd_cs4231_capture_hw_params(snd_pcm_substream_t *substream,
-					snd_pcm_hw_params_t *hw_params)
+static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,
+					struct snd_pcm_hw_params *hw_params)
 {
-	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 	unsigned char new_cdfr;
 	int err;
 
@@ -1104,14 +1105,14 @@
 	return 0;
 }
 
-static int snd_cs4231_capture_hw_free(snd_pcm_substream_t *substream)
+static int snd_cs4231_capture_hw_free(struct snd_pcm_substream *substream)
 {
 	return snd_pcm_lib_free_pages(substream);
 }
 
-static int snd_cs4231_capture_prepare(snd_pcm_substream_t *substream)
+static int snd_cs4231_capture_prepare(struct snd_pcm_substream *substream)
 {
-	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 	unsigned long flags;
 
 	spin_lock_irqsave(&chip->lock, flags);
@@ -1125,7 +1126,7 @@
 	return 0;
 }
 
-static void snd_cs4231_overrange(cs4231_t *chip)
+static void snd_cs4231_overrange(struct snd_cs4231 *chip)
 {
 	unsigned long flags;
 	unsigned char res;
@@ -1138,10 +1139,8 @@
 		chip->capture_substream->runtime->overrange++;
 }
 
-static void snd_cs4231_play_callback(cs4231_t *cookie)
+static void snd_cs4231_play_callback(struct snd_cs4231 *chip)
 {
-	cs4231_t *chip = cookie;
-
 	if (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE) {
 		snd_pcm_period_elapsed(chip->playback_substream);
 		snd_cs4231_advance_dma(&chip->p_dma, chip->playback_substream,
@@ -1149,10 +1148,8 @@
 	}
 }
 
-static void snd_cs4231_capture_callback(cs4231_t *cookie)
+static void snd_cs4231_capture_callback(struct snd_cs4231 *chip)
 {
-	cs4231_t *chip = cookie;
-
 	if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) {
 		snd_pcm_period_elapsed(chip->capture_substream);
 		snd_cs4231_advance_dma(&chip->c_dma, chip->capture_substream,
@@ -1160,10 +1157,10 @@
 	}
 }
 
-static snd_pcm_uframes_t snd_cs4231_playback_pointer(snd_pcm_substream_t *substream)
+static snd_pcm_uframes_t snd_cs4231_playback_pointer(struct snd_pcm_substream *substream)
 {
-	cs4231_t *chip = snd_pcm_substream_chip(substream);
-	cs4231_dma_control_t *dma_cont = &chip->p_dma;
+	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
+	struct cs4231_dma_control *dma_cont = &chip->p_dma;
 	size_t ptr;
 	
 	if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
@@ -1175,10 +1172,10 @@
 	return bytes_to_frames(substream->runtime, ptr);
 }
 
-static snd_pcm_uframes_t snd_cs4231_capture_pointer(snd_pcm_substream_t * substream)
+static snd_pcm_uframes_t snd_cs4231_capture_pointer(struct snd_pcm_substream *substream)
 {
-	cs4231_t *chip = snd_pcm_substream_chip(substream);
-	cs4231_dma_control_t *dma_cont = &chip->c_dma;
+	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
+	struct cs4231_dma_control *dma_cont = &chip->c_dma;
 	size_t ptr;
 	
 	if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
@@ -1194,7 +1191,7 @@
 
  */
 
-static int snd_cs4231_probe(cs4231_t *chip)
+static int __init snd_cs4231_probe(struct snd_cs4231 *chip)
 {
 	unsigned long flags;
 	int i, id, vers;
@@ -1259,7 +1256,7 @@
 	return 0;		/* all things are ok.. */
 }
 
-static snd_pcm_hardware_t snd_cs4231_playback =
+static struct snd_pcm_hardware snd_cs4231_playback =
 {
 	.info			= (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START),
@@ -1279,7 +1276,7 @@
 	.periods_max		= 1024,
 };
 
-static snd_pcm_hardware_t snd_cs4231_capture =
+static struct snd_pcm_hardware snd_cs4231_capture =
 {
 	.info			= (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START),
@@ -1299,10 +1296,10 @@
 	.periods_max		= 1024,
 };
 
-static int snd_cs4231_playback_open(snd_pcm_substream_t *substream)
+static int snd_cs4231_playback_open(struct snd_pcm_substream *substream)
 {
-	cs4231_t *chip = snd_pcm_substream_chip(substream);
-	snd_pcm_runtime_t *runtime = substream->runtime;
+	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
 	int err;
 
 	runtime->hw = snd_cs4231_playback;
@@ -1319,10 +1316,10 @@
 	return 0;
 }
 
-static int snd_cs4231_capture_open(snd_pcm_substream_t *substream)
+static int snd_cs4231_capture_open(struct snd_pcm_substream *substream)
 {
-	cs4231_t *chip = snd_pcm_substream_chip(substream);
-	snd_pcm_runtime_t *runtime = substream->runtime;
+	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
 	int err;
 
 	runtime->hw = snd_cs4231_capture;
@@ -1339,9 +1336,9 @@
 	return 0;
 }
 
-static int snd_cs4231_playback_close(snd_pcm_substream_t *substream)
+static int snd_cs4231_playback_close(struct snd_pcm_substream *substream)
 {
-	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 
 	snd_cs4231_close(chip, CS4231_MODE_PLAY);
 	chip->playback_substream = NULL;
@@ -1349,9 +1346,9 @@
 	return 0;
 }
 
-static int snd_cs4231_capture_close(snd_pcm_substream_t *substream)
+static int snd_cs4231_capture_close(struct snd_pcm_substream *substream)
 {
-	cs4231_t *chip = snd_pcm_substream_chip(substream);
+	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 
 	snd_cs4231_close(chip, CS4231_MODE_RECORD);
 	chip->capture_substream = NULL;
@@ -1363,7 +1360,7 @@
  * XXX the audio AUXIO register...
  */
 
-static snd_pcm_ops_t snd_cs4231_playback_ops = {
+static struct snd_pcm_ops snd_cs4231_playback_ops = {
 	.open		=	snd_cs4231_playback_open,
 	.close		=	snd_cs4231_playback_close,
 	.ioctl		=	snd_pcm_lib_ioctl,
@@ -1374,7 +1371,7 @@
 	.pointer	=	snd_cs4231_playback_pointer,
 };
 
-static snd_pcm_ops_t snd_cs4231_capture_ops = {
+static struct snd_pcm_ops snd_cs4231_capture_ops = {
 	.open		=	snd_cs4231_capture_open,
 	.close		=	snd_cs4231_capture_close,
 	.ioctl		=	snd_pcm_lib_ioctl,
@@ -1385,9 +1382,9 @@
 	.pointer	=	snd_cs4231_capture_pointer,
 };
 
-int snd_cs4231_pcm(cs4231_t *chip)
+static int __init snd_cs4231_pcm(struct snd_cs4231 *chip)
 {
-	snd_pcm_t *pcm;
+	struct snd_pcm *pcm;
 	int err;
 
 	if ((err = snd_pcm_new(chip->card, "CS4231", 0, 1, 1, &pcm)) < 0)
@@ -1408,16 +1405,10 @@
 	return 0;
 }
 
-static void snd_cs4231_timer_free(snd_timer_t *timer)
+static int __init snd_cs4231_timer(struct snd_cs4231 *chip)
 {
-	cs4231_t *chip = timer->private_data;
-	chip->timer = NULL;
-}
-
-int snd_cs4231_timer(cs4231_t *chip)
-{
-	snd_timer_t *timer;
-	snd_timer_id_t tid;
+	struct snd_timer *timer;
+	struct snd_timer_id tid;
 	int err;
 
 	/* Timer initialization */
@@ -1430,7 +1421,6 @@
 		return err;
 	strcpy(timer->name, "CS4231");
 	timer->private_data = chip;
-	timer->private_free = snd_cs4231_timer_free;
 	timer->hw = snd_cs4231_timer_table;
 	chip->timer = timer;
 
@@ -1441,12 +1431,13 @@
  *  MIXER part
  */
 
-static int snd_cs4231_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_info *uinfo)
 {
 	static char *texts[4] = {
 		"Line", "CD", "Mic", "Mix"
 	};
-	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
 
 	snd_assert(chip->card != NULL, return -EINVAL);
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
@@ -1459,9 +1450,10 @@
 	return 0;
 }
 
-static int snd_cs4231_get_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int snd_cs4231_get_mux(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
 {
-	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
 	unsigned long flags;
 	
 	spin_lock_irqsave(&chip->lock, flags);
@@ -1474,9 +1466,10 @@
 	return 0;
 }
 
-static int snd_cs4231_put_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int snd_cs4231_put_mux(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
 {
-	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
 	unsigned long flags;
 	unsigned short left, right;
 	int change;
@@ -1501,7 +1494,8 @@
 	return change;
 }
 
-int snd_cs4231_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+static int snd_cs4231_info_single(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_info *uinfo)
 {
 	int mask = (kcontrol->private_value >> 16) & 0xff;
 
@@ -1514,9 +1508,10 @@
 	return 0;
 }
 
-int snd_cs4231_get_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int snd_cs4231_get_single(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
 {
-	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
 	unsigned long flags;
 	int reg = kcontrol->private_value & 0xff;
 	int shift = (kcontrol->private_value >> 8) & 0xff;
@@ -1536,9 +1531,10 @@
 	return 0;
 }
 
-int snd_cs4231_put_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int snd_cs4231_put_single(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
 {
-	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
 	unsigned long flags;
 	int reg = kcontrol->private_value & 0xff;
 	int shift = (kcontrol->private_value >> 8) & 0xff;
@@ -1563,7 +1559,8 @@
 	return change;
 }
 
-int snd_cs4231_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
+static int snd_cs4231_info_double(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_info *uinfo)
 {
 	int mask = (kcontrol->private_value >> 24) & 0xff;
 
@@ -1576,9 +1573,10 @@
 	return 0;
 }
 
-int snd_cs4231_get_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int snd_cs4231_get_double(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
 {
-	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
 	unsigned long flags;
 	int left_reg = kcontrol->private_value & 0xff;
 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
@@ -1604,9 +1602,10 @@
 	return 0;
 }
 
-int snd_cs4231_put_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+static int snd_cs4231_put_double(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
 {
-	cs4231_t *chip = snd_kcontrol_chip(kcontrol);
+	struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
 	unsigned long flags;
 	int left_reg = kcontrol->private_value & 0xff;
 	int right_reg = (kcontrol->private_value >> 8) & 0xff;
@@ -1651,7 +1650,7 @@
   .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \
   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | (shift_right << 19) | (mask << 24) | (invert << 22) }
 
-static snd_kcontrol_new_t snd_cs4231_controls[] = {
+static struct snd_kcontrol_new snd_cs4231_controls[] __initdata = {
 CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
 CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
 CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
@@ -1680,9 +1679,9 @@
 CS4231_SINGLE("Headphone Out Switch", 0, CS4231_PIN_CTRL, 7, 1, 1)
 };
                                         
-int snd_cs4231_mixer(cs4231_t *chip)
+static int __init snd_cs4231_mixer(struct snd_cs4231 *chip)
 {
-	snd_card_t *card;
+	struct snd_card *card;
 	int err, idx;
 
 	snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
@@ -1702,9 +1701,9 @@
 
 static int dev;
 
-static int cs4231_attach_begin(snd_card_t **rcard)
+static int __init cs4231_attach_begin(struct snd_card **rcard)
 {
-	snd_card_t *card;
+	struct snd_card *card;
 
 	*rcard = NULL;
 
@@ -1727,7 +1726,7 @@
 	return 0;
 }
 
-static int cs4231_attach_finish(snd_card_t *card, cs4231_t *chip)
+static int __init cs4231_attach_finish(struct snd_card *card, struct snd_cs4231 *chip)
 {
 	int err;
 
@@ -1761,7 +1760,7 @@
 	unsigned long flags;
 	unsigned char status;
 	u32 csr;
-	cs4231_t *chip = dev_id;
+	struct snd_cs4231 *chip = dev_id;
 
 	/*This is IRQ is not raised by the cs4231*/
 	if (!(__cs4231_readb(chip, CS4231P(chip, STATUS)) & CS4231_GLOBALIRQ))
@@ -1806,12 +1805,12 @@
  * SBUS DMA routines
  */
 
-int sbus_dma_request(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len)
+static int sbus_dma_request(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len)
 {
 	unsigned long flags;
 	u32 test, csr;
 	int err;
-	sbus_dma_info_t *base = &dma_cont->sbus_info;
+	struct sbus_dma_info *base = &dma_cont->sbus_info;
 	
 	if (len >= (1 << 24))
 		return -EINVAL;
@@ -1838,11 +1837,11 @@
 	return err;
 }
 
-void sbus_dma_prepare(struct cs4231_dma_control *dma_cont, int d)
+static void sbus_dma_prepare(struct cs4231_dma_control *dma_cont, int d)
 {
 	unsigned long flags;
 	u32 csr, test;
-	sbus_dma_info_t *base = &dma_cont->sbus_info;
+	struct sbus_dma_info *base = &dma_cont->sbus_info;
 
 	spin_lock_irqsave(&base->lock, flags);
 	csr = sbus_readl(base->regs + APCCSR);
@@ -1857,11 +1856,11 @@
 	spin_unlock_irqrestore(&base->lock, flags);
 }
 
-void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
+static void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
 {
 	unsigned long flags;
 	u32 csr, shift;
-	sbus_dma_info_t *base = &dma_cont->sbus_info;
+	struct sbus_dma_info *base = &dma_cont->sbus_info;
 
 	spin_lock_irqsave(&base->lock, flags);
 	if (!on) {
@@ -1894,14 +1893,14 @@
 	spin_unlock_irqrestore(&base->lock, flags);
 }
 
-unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont)
+static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont)
 {
-	sbus_dma_info_t *base = &dma_cont->sbus_info;
+	struct sbus_dma_info *base = &dma_cont->sbus_info;
 
         return sbus_readl(base->regs + base->dir + APCVA);
 }
 
-void sbus_dma_reset(cs4231_t *chip)
+static void sbus_dma_reset(struct snd_cs4231 *chip)
 {
         sbus_writel(APC_CHIP_RESET, chip->port + APCCSR);
         sbus_writel(0x00, chip->port + APCCSR);
@@ -1918,7 +1917,7 @@
 	               chip->port + APCCSR);
 }
 
-void sbus_dma_preallocate(cs4231_t *chip, snd_pcm_t *pcm)
+static void sbus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
 {
 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_SBUS,
 					      snd_dma_sbus_data(chip->dev_u.sdev),
@@ -1929,7 +1928,7 @@
  * Init and exit routines
  */
 
-static int snd_cs4231_sbus_free(cs4231_t *chip)
+static int snd_cs4231_sbus_free(struct snd_cs4231 *chip)
 {
 	if (chip->irq[0])
 		free_irq(chip->irq[0], chip);
@@ -1937,31 +1936,28 @@
 	if (chip->port)
 		sbus_iounmap(chip->port, chip->regs_size);
 
-	if (chip->timer)
-		snd_device_free(chip->card, chip->timer);
-
 	kfree(chip);
 
 	return 0;
 }
 
-static int snd_cs4231_sbus_dev_free(snd_device_t *device)
+static int snd_cs4231_sbus_dev_free(struct snd_device *device)
 {
-	cs4231_t *cp = device->device_data;
+	struct snd_cs4231 *cp = device->device_data;
 
 	return snd_cs4231_sbus_free(cp);
 }
 
-static snd_device_ops_t snd_cs4231_sbus_dev_ops = {
+static struct snd_device_ops snd_cs4231_sbus_dev_ops = {
 	.dev_free	=	snd_cs4231_sbus_dev_free,
 };
 
-static int __init snd_cs4231_sbus_create(snd_card_t *card,
+static int __init snd_cs4231_sbus_create(struct snd_card *card,
 					 struct sbus_dev *sdev,
 					 int dev,
-					 cs4231_t **rchip)
+					 struct snd_cs4231 **rchip)
 {
-	cs4231_t *chip;
+	struct snd_cs4231 *chip;
 	int err;
 
 	*rchip = NULL;
@@ -2032,11 +2028,11 @@
 	return 0;
 }
 
-static int cs4231_sbus_attach(struct sbus_dev *sdev)
+static int __init cs4231_sbus_attach(struct sbus_dev *sdev)
 {
 	struct resource *rp = &sdev->resource[0];
-	cs4231_t *cp;
-	snd_card_t *card;
+	struct snd_cs4231 *cp;
+	struct snd_card *card;
 	int err;
 
 	err = cs4231_attach_begin(&card);
@@ -2062,14 +2058,14 @@
 
 static void snd_cs4231_ebus_play_callback(struct ebus_dma_info *p, int event, void *cookie)
 {
-	cs4231_t *chip = cookie;
+	struct snd_cs4231 *chip = cookie;
 	
 	snd_cs4231_play_callback(chip);
 }
 
 static void snd_cs4231_ebus_capture_callback(struct ebus_dma_info *p, int event, void *cookie)
 {
-	cs4231_t *chip = cookie;
+	struct snd_cs4231 *chip = cookie;
 
 	snd_cs4231_capture_callback(chip);
 }
@@ -2078,32 +2074,32 @@
  * EBUS DMA wrappers
  */
 
-int _ebus_dma_request(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len)
+static int _ebus_dma_request(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len)
 {
 	return ebus_dma_request(&dma_cont->ebus_info, bus_addr, len);
 }
 
-void _ebus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
+static void _ebus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
 {
 	ebus_dma_enable(&dma_cont->ebus_info, on);
 }
 
-void _ebus_dma_prepare(struct cs4231_dma_control *dma_cont, int dir)
+static void _ebus_dma_prepare(struct cs4231_dma_control *dma_cont, int dir)
 {
 	ebus_dma_prepare(&dma_cont->ebus_info, dir);
 }
 
-unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont)
+static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont)
 {
 	return ebus_dma_addr(&dma_cont->ebus_info);
 }
 
-void _ebus_dma_reset(cs4231_t *chip)
+static void _ebus_dma_reset(struct snd_cs4231 *chip)
 {
 	return;
 }
 
-void _ebus_dma_preallocate(cs4231_t *chip, snd_pcm_t *pcm)
+static void _ebus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
 {
 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 				      snd_dma_pci_data(chip->dev_u.pdev),
@@ -2114,7 +2110,7 @@
  * Init and exit routines
  */
 
-static int snd_cs4231_ebus_free(cs4231_t *chip)
+static int snd_cs4231_ebus_free(struct snd_cs4231 *chip)
 {
 	if (chip->c_dma.ebus_info.regs) {
 		ebus_dma_unregister(&chip->c_dma.ebus_info);
@@ -2127,31 +2123,29 @@
 
 	if (chip->port)
 		iounmap(chip->port);
-	if (chip->timer)
-		snd_device_free(chip->card, chip->timer);
 
 	kfree(chip);
 
 	return 0;
 }
 
-static int snd_cs4231_ebus_dev_free(snd_device_t *device)
+static int snd_cs4231_ebus_dev_free(struct snd_device *device)
 {
-	cs4231_t *cp = device->device_data;
+	struct snd_cs4231 *cp = device->device_data;
 
 	return snd_cs4231_ebus_free(cp);
 }
 
-static snd_device_ops_t snd_cs4231_ebus_dev_ops = {
+static struct snd_device_ops snd_cs4231_ebus_dev_ops = {
 	.dev_free	=	snd_cs4231_ebus_dev_free,
 };
 
-static int __init snd_cs4231_ebus_create(snd_card_t *card,
+static int __init snd_cs4231_ebus_create(struct snd_card *card,
 					 struct linux_ebus_device *edev,
 					 int dev,
-					 cs4231_t **rchip)
+					 struct snd_cs4231 **rchip)
 {
-	cs4231_t *chip;
+	struct snd_cs4231 *chip;
 	int err;
 
 	*rchip = NULL;
@@ -2241,10 +2235,10 @@
 	return 0;
 }
 
-static int cs4231_ebus_attach(struct linux_ebus_device *edev)
+static int __init cs4231_ebus_attach(struct linux_ebus_device *edev)
 {
-	snd_card_t *card;
-	cs4231_t *chip;
+	struct snd_card *card;
+	struct snd_cs4231 *chip;
 	int err;
 
 	err = cs4231_attach_begin(&card);
@@ -2317,10 +2311,10 @@
 
 static void __exit cs4231_exit(void)
 {
-	cs4231_t *p = cs4231_list;
+	struct snd_cs4231 *p = cs4231_list;
 
 	while (p != NULL) {
-		cs4231_t *next = p->next;
+		struct snd_cs4231 *next = p->next;
 
 		snd_card_free(p->card);