diff --git a/drivers/hwmon/ams/ams-core.c b/drivers/hwmon/ams/ams-core.c
index f1f0f5d0442cc53c5abfe2623f0015132ff29fb6..f5ebad5614126d966cfc7e637a6522fda5bf705d 100644
--- a/drivers/hwmon/ams/ams-core.c
+++ b/drivers/hwmon/ams/ams-core.c
@@ -141,10 +141,10 @@ static void ams_worker(struct work_struct *work)
 int ams_sensor_attach(void)
 {
 	int result;
-	u32 *prop;
+	const u32 *prop;
 
 	/* Get orientation */
-	prop = (u32*)get_property(ams_info.of_node, "orientation", NULL);
+	prop = get_property(ams_info.of_node, "orientation", NULL);
 	if (!prop)
 		return -ENODEV;
 	ams_info.orient1 = *prop;
diff --git a/drivers/hwmon/ams/ams-i2c.c b/drivers/hwmon/ams/ams-i2c.c
index 0d24bdfea53e0a965f109fd5917019e701fb0d6f..485d333bcb3eadabd5b7ee8e5eb6b022cc5676f1 100644
--- a/drivers/hwmon/ams/ams-i2c.c
+++ b/drivers/hwmon/ams/ams-i2c.c
@@ -263,7 +263,7 @@ int __init ams_i2c_init(struct device_node *np)
 {
 	char *tmp_bus;
 	int result;
-	u32 *prop;
+	const u32 *prop;
 
 	mutex_lock(&ams_info.lock);
 
@@ -276,7 +276,7 @@ int __init ams_i2c_init(struct device_node *np)
 	ams_info.bustype = BUS_I2C;
 
 	/* look for bus either using "reg" or by path */
-	prop = (u32*)get_property(ams_info.of_node, "reg", NULL);
+	prop = get_property(ams_info.of_node, "reg", NULL);
 	if (!prop) {
 		result = -ENODEV;
 
diff --git a/drivers/hwmon/ams/ams-pmu.c b/drivers/hwmon/ams/ams-pmu.c
index 4636ae031a53cb83b0e1fc1267629cab6746ddfb..1b01c215bfe7471c672557dd41303bee1979d46c 100644
--- a/drivers/hwmon/ams/ams-pmu.c
+++ b/drivers/hwmon/ams/ams-pmu.c
@@ -146,7 +146,7 @@ static void ams_pmu_exit(void)
 
 int __init ams_pmu_init(struct device_node *np)
 {
-	u32 *prop;
+	const u32 *prop;
 	int result;
 
 	mutex_lock(&ams_info.lock);
@@ -160,7 +160,7 @@ int __init ams_pmu_init(struct device_node *np)
 	ams_info.bustype = BUS_HOST;
 
 	/* Get PMU command, should be 0x4e, but we can never know */
-	prop = (u32*)get_property(ams_info.of_node, "reg", NULL);
+	prop = get_property(ams_info.of_node, "reg", NULL);
 	if (!prop) {
 		result = -ENODEV;
 		goto exit;
diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c
index 059da9628bb56c3e103d81976dfeb0a3ce71079d..cee66b79b30dd4e663f6a1b327cd36a5b44d5d25 100644
--- a/drivers/infiniband/hw/ehca/ehca_main.c
+++ b/drivers/infiniband/hw/ehca/ehca_main.c
@@ -565,11 +565,11 @@ static int __devinit ehca_probe(struct ibmebus_dev *dev,
 				const struct of_device_id *id)
 {
 	struct ehca_shca *shca;
-	u64 *handle;
+	const u64 *handle;
 	struct ib_pd *ibpd;
 	int ret;
 
-	handle = (u64 *)get_property(dev->ofdev.node, "ibm,hca-handle", NULL);
+	handle = get_property(dev->ofdev.node, "ibm,hca-handle", NULL);
 	if (!handle) {
 		ehca_gen_err("Cannot get eHCA handle for adapter: %s.",
 			     dev->ofdev.node->full_name);
diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index 0e4042bc0a48e44c570b54b7e205ff3a8a8e58eb..d1a8134c8e311c4721ed383162e8ba9d62aa288e 100644
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -2320,7 +2320,7 @@ static int ehea_setup_single_port(struct ehea_port *port,
 	struct net_device *dev = port->netdev;
 	struct ehea_adapter *adapter = port->adapter;
 	struct hcp_ehea_port_cb4 *cb4;
-	u32 *dn_log_port_id;
+	const u32 *dn_log_port_id;
 	int jumbo = 0;
 
 	sema_init(&port->port_lock, 1);
@@ -2336,7 +2336,7 @@ static int ehea_setup_single_port(struct ehea_port *port,
 	port->of_dev_node = dn;
 
 	/* Determine logical port id */
-	dn_log_port_id = (u32*)get_property(dn, "ibm,hea-port-no", NULL);
+	dn_log_port_id = get_property(dn, "ibm,hea-port-no", NULL);
 
 	if (!dn_log_port_id) {
 		ehea_error("bad device node: dn_log_port_id=%p",
@@ -2492,7 +2492,7 @@ static int __devinit ehea_probe(struct ibmebus_dev *dev,
 				const struct of_device_id *id)
 {
 	struct ehea_adapter *adapter;
-	u64 *adapter_handle;
+	const u64 *adapter_handle;
 	int ret;
 
 	adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
@@ -2502,7 +2502,7 @@ static int __devinit ehea_probe(struct ibmebus_dev *dev,
 		goto out;
 	}
 
-	adapter_handle = (u64*)get_property(dev->ofdev.node, "ibm,hea-handle",
+	adapter_handle = get_property(dev->ofdev.node, "ibm,hea-handle",
 					    NULL);
 	if (adapter_handle)
 		adapter->handle = *adapter_handle;
diff --git a/drivers/scsi/ibmvscsi/ibmvstgt.c b/drivers/scsi/ibmvscsi/ibmvstgt.c
index 4368ca0e8270b7a4b9b8d75596dcbb79d906c0c6..f65f21da3fd8b3e885ee77682d95654895dd2b40 100644
--- a/drivers/scsi/ibmvscsi/ibmvstgt.c
+++ b/drivers/scsi/ibmvscsi/ibmvstgt.c
@@ -897,7 +897,7 @@ static int get_system_info(void)
 {
 	struct device_node *rootdn;
 	const char *id, *model, *name;
-	unsigned int *num;
+	const unsigned int *num;
 
 	rootdn = find_path_device("/");
 	if (!rootdn)
@@ -912,7 +912,7 @@ static int get_system_info(void)
 	if (name)
 		strncpy(partition_name, name, sizeof(partition_name));
 
-	num = (unsigned int *) get_property(rootdn, "ibm,partition-no", NULL);
+	num = get_property(rootdn, "ibm,partition-no", NULL);
 	if (num)
 		partition_number = *num;
 
diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c
index 9a2b0d69b0ae7ebdb8bc0dac91a686e986c27f11..c411293cefc8a9bb3a88ca46f5abf0b185cf4b3b 100644
--- a/drivers/video/aty/radeon_pm.c
+++ b/drivers/video/aty/radeon_pm.c
@@ -1262,7 +1262,7 @@ static void radeon_pm_full_reset_sdram(struct radeonfb_info *rinfo)
 	/* This is the code for the Aluminium PowerBooks M10 / iBooks M11 */
 	if (rinfo->family == CHIP_FAMILY_RV350) {
 		u32 sdram_mode_reg = rinfo->save_regs[35];
-		static u32 default_mrtable[] =
+		static const u32 default_mrtable[] =
 			{ 0x21320032,
 			  0x21321000, 0xa1321000, 0x21321000, 0xffffffff,
 			  0x21320032, 0xa1320032, 0x21320032, 0xffffffff,
diff --git a/sound/aoa/codecs/snd-aoa-codec-onyx.c b/sound/aoa/codecs/snd-aoa-codec-onyx.c
index b00fc4842c9327ecf0bf9a82bf5e24596b8b1937..bf7f03121fe7f10dc00560592a7b4d1645722e42 100644
--- a/sound/aoa/codecs/snd-aoa-codec-onyx.c
+++ b/sound/aoa/codecs/snd-aoa-codec-onyx.c
@@ -1062,9 +1062,9 @@ static int onyx_i2c_attach(struct i2c_adapter *adapter)
 
 	while ((dev = of_get_next_child(busnode, dev)) != NULL) {
 		if (device_is_compatible(dev, "pcm3052")) {
-			u32 *addr;
+			const u32 *addr;
 			printk(KERN_DEBUG PFX "found pcm3052\n");
-			addr = (u32 *) get_property(dev, "reg", NULL);
+			addr = get_property(dev, "reg", NULL);
 			if (!addr)
 				return -ENODEV;
 			return onyx_create(adapter, dev, (*addr)>>1);
diff --git a/sound/aoa/codecs/snd-aoa-codec-tas.c b/sound/aoa/codecs/snd-aoa-codec-tas.c
index 2cd81fa07ce100b2e12b3ba89425457845270b42..ed6bdb073d83e27d225ee203dff2935d54bad80e 100644
--- a/sound/aoa/codecs/snd-aoa-codec-tas.c
+++ b/sound/aoa/codecs/snd-aoa-codec-tas.c
@@ -939,9 +939,9 @@ static int tas_i2c_attach(struct i2c_adapter *adapter)
 
 	while ((dev = of_get_next_child(busnode, dev)) != NULL) {
 		if (device_is_compatible(dev, "tas3004")) {
-			u32 *addr;
+			const u32 *addr;
 			printk(KERN_DEBUG PFX "found tas3004\n");
-			addr = (u32 *) get_property(dev, "reg", NULL);
+			addr = get_property(dev, "reg", NULL);
 			if (!addr)
 				continue;
 			return tas_create(adapter, dev, ((*addr) >> 1) & 0x7f);
@@ -950,7 +950,8 @@ static int tas_i2c_attach(struct i2c_adapter *adapter)
 		 * property that says 'tas3004', they just have a 'deq'
 		 * node without any such property... */
 		if (strcmp(dev->name, "deq") == 0) {
-			u32 *_addr, addr;
+			const u32 *_addr;
+			u32 addr;
 			printk(KERN_DEBUG PFX "found 'deq' node\n");
 			_addr = (u32 *) get_property(dev, "i2c-address", NULL);
 			if (!_addr)
diff --git a/sound/aoa/core/snd-aoa-gpio-feature.c b/sound/aoa/core/snd-aoa-gpio-feature.c
index 2b03bc798bcb784a11b61a34c9d52045db8fdd52..d34e5db64780944b87f1aaf7bdda89c6280b480d 100644
--- a/sound/aoa/core/snd-aoa-gpio-feature.c
+++ b/sound/aoa/core/snd-aoa-gpio-feature.c
@@ -55,7 +55,7 @@ static struct device_node *get_gpio(char *name,
 				    int *gpioactiveptr)
 {
 	struct device_node *np, *gpio;
-	u32 *reg;
+	const u32 *reg;
 	const char *audio_gpio;
 
 	*gpioptr = -1;
@@ -84,7 +84,7 @@ static struct device_node *get_gpio(char *name,
 			return NULL;
 	}
 
-	reg = (u32 *)get_property(np, "reg", NULL);
+	reg = get_property(np, "reg", NULL);
 	if (!reg)
 		return NULL;
 
@@ -96,7 +96,7 @@ static struct device_node *get_gpio(char *name,
 	if (*gpioptr < 0x50)
 		*gpioptr += 0x50;
 
-	reg = (u32 *)get_property(np, "audio-gpio-active-state", NULL);
+	reg = get_property(np, "audio-gpio-active-state", NULL);
 	if (!reg)
 		/* Apple seems to default to 1, but
 		 * that doesn't seem right at least on most
diff --git a/sound/aoa/fabrics/snd-aoa-fabric-layout.c b/sound/aoa/fabrics/snd-aoa-fabric-layout.c
index 1b94ba6dd2798a6f207534462ee1c8fcad1217a8..7e3880901c611c7498138c68294589cdb620feb5 100644
--- a/sound/aoa/fabrics/snd-aoa-fabric-layout.c
+++ b/sound/aoa/fabrics/snd-aoa-fabric-layout.c
@@ -724,7 +724,7 @@ static int check_codec(struct aoa_codec *codec,
 		       struct layout_dev *ldev,
 		       struct codec_connect_info *cci)
 {
-	u32 *ref;
+	const u32 *ref;
 	char propname[32];
 	struct codec_connection *cc;
 
@@ -732,7 +732,7 @@ static int check_codec(struct aoa_codec *codec,
 	if (codec->node && (strcmp(codec->node->name, "codec") == 0)) {
 		snprintf(propname, sizeof(propname),
 			 "platform-%s-codec-ref", codec->name);
-		ref = (u32*)get_property(ldev->sound, propname, NULL);
+		ref = get_property(ldev->sound, propname, NULL);
 		if (!ref) {
 			printk(KERN_INFO "snd-aoa-fabric-layout: "
 				"required property %s not present\n", propname);
diff --git a/sound/aoa/soundbus/core.c b/sound/aoa/soundbus/core.c
index 47b3e3768df0b3b1f0dfe874bad806570f837d8d..45680b5ebc3534e918e713e8f3a2613e9979d6e7 100644
--- a/sound/aoa/soundbus/core.c
+++ b/sound/aoa/soundbus/core.c
@@ -61,9 +61,10 @@ static int soundbus_uevent(struct device *dev, char **envp, int num_envp,
 {
 	struct soundbus_dev * soundbus_dev;
 	struct of_device * of;
-	char *scratch, *compat, *compat2;
+	char *scratch;
+	const char *compat;
 	int i = 0;
-	int length, cplen, cplen2, seen = 0;
+	int length, cplen, seen = 0;
 
 	if (!dev)
 		return -ENODEV;
@@ -95,9 +96,7 @@ static int soundbus_uevent(struct device *dev, char **envp, int num_envp,
 	 * it's not really legal to split it out with commas. We split it
 	 * up using a number of environment variables instead. */
 
-	compat = (char *) get_property(of->node, "compatible", &cplen);
-	compat2 = compat;
-	cplen2= cplen;
+	compat = get_property(of->node, "compatible", &cplen);
 	while (compat && cplen > 0) {
 		envp[i++] = scratch;
 		length = scnprintf (scratch, buffer_size,
diff --git a/sound/aoa/soundbus/i2sbus/i2sbus-core.c b/sound/aoa/soundbus/i2sbus/i2sbus-core.c
index e36f6aa448d46594694c6383a80af504135b3cab..bbe50a0fa11519a557423d38090b7e6ac37df071 100644
--- a/sound/aoa/soundbus/i2sbus/i2sbus-core.c
+++ b/sound/aoa/soundbus/i2sbus/i2sbus-core.c
@@ -122,7 +122,7 @@ static int i2sbus_get_and_fixup_rsrc(struct device_node *np, int index,
 {
 	struct device_node *parent;
 	int pindex, rc = -ENXIO;
-	u32 *reg;
+	const u32 *reg;
 
 	/* Machines with layout 76 and 36 (K2 based) have a weird device
 	 * tree what we need to special case.
@@ -141,7 +141,7 @@ static int i2sbus_get_and_fixup_rsrc(struct device_node *np, int index,
 	rc = of_address_to_resource(parent, pindex, res);
 	if (rc)
 		goto bail;
-	reg = (u32 *)get_property(np, "reg", NULL);
+	reg = get_property(np, "reg", NULL);
 	if (reg == NULL) {
 		rc = -ENXIO;
 		goto bail;
@@ -188,8 +188,7 @@ static int i2sbus_add_dev(struct macio_dev *macio,
 		}
 	}
 	if (i == 1) {
-		u32 *layout_id;
-		layout_id = (u32*) get_property(sound, "layout-id", NULL);
+		const u32 *layout_id = get_property(sound, "layout-id", NULL);
 		if (layout_id) {
 			layout = *layout_id;
 			snprintf(dev->sound.modalias, 32,
diff --git a/sound/oss/dmasound/dmasound_awacs.c b/sound/oss/dmasound/dmasound_awacs.c
index f8a49bd17a1343b7b9d01e99ef453e10b23aebe6..7aa4d43ae6cd1d3cb10890b44c20d2ef22909d6c 100644
--- a/sound/oss/dmasound/dmasound_awacs.c
+++ b/sound/oss/dmasound/dmasound_awacs.c
@@ -578,7 +578,7 @@ tas_mixer_ioctl(u_int cmd, u_long arg)
 }
 
 static void __init
-tas_init_frame_rates(unsigned int *prop, unsigned int l)
+tas_init_frame_rates(const unsigned int *prop, unsigned int l)
 {
 	int i ;
 	if (prop) {
@@ -2651,7 +2651,7 @@ get_expansion_type(void)
 */
 
 static void __init
-awacs_init_frame_rates(unsigned int *prop, unsigned int l)
+awacs_init_frame_rates(const unsigned int *prop, unsigned int l)
 {
 	int i ;
 	if (prop) {
@@ -2674,7 +2674,7 @@ awacs_init_frame_rates(unsigned int *prop, unsigned int l)
 }
 
 static void __init
-burgundy_init_frame_rates(unsigned int *prop, unsigned int l)
+burgundy_init_frame_rates(const unsigned int *prop, unsigned int l)
 {
 	int temp[9] ;
 	int i = 0 ;
@@ -2700,7 +2700,7 @@ if (i > 1){
 }
 
 static void __init
-daca_init_frame_rates(unsigned int *prop, unsigned int l)
+daca_init_frame_rates(const unsigned int *prop, unsigned int l)
 {
 	int temp[9] ;
 	int i = 0 ;
@@ -2727,7 +2727,7 @@ if (i > 1){
 }
 
 static void __init
-init_frame_rates(unsigned int *prop, unsigned int l)
+init_frame_rates(const unsigned int *prop, unsigned int l)
 {
 	switch (awacs_revision) {
 		case AWACS_TUMBLER:
@@ -2972,21 +2972,21 @@ printk("dmasound_pmac: Awacs/Screamer Codec Mfct: %d Rev %d\n", mfg, rev);
 	*/
 
 	if (info) {
-		unsigned int *prop, l;
+		const unsigned int *prop;
+		unsigned int l;
 
 		sound_device_id = 0;
 		/* device ID appears post g3 b&w */
-		prop = (unsigned int *)get_property(info, "device-id", NULL);
+		prop = get_property(info, "device-id", NULL);
 		if (prop != 0)
 			sound_device_id = *prop;
 
 		/* look for a property saying what sample rates
 		   are available */
 
-		prop = (unsigned int *)get_property(info, "sample-rates", &l);
+		prop = get_property(info, "sample-rates", &l);
 		if (prop == 0)
-			prop = (unsigned int *) get_property
-				(info, "output-frame-rates", &l);
+			prop = get_property(info, "output-frame-rates", &l);
 
 		/* if it's there use it to set up frame rates */
 		init_frame_rates(prop, l) ;
diff --git a/sound/oss/dmasound/tas_common.c b/sound/oss/dmasound/tas_common.c
index 665e85b5562bd56785494bbfbd428b9459afaa5a..5e2c0aed5472a9c962d138354f0d2df5726c90dd 100644
--- a/sound/oss/dmasound/tas_common.c
+++ b/sound/oss/dmasound/tas_common.c
@@ -190,7 +190,7 @@ tas_cleanup(void)
 int __init
 tas_init(int driver_id, const char *driver_name)
 {
-	u32* paddr;
+	const u32* paddr;
 
 	printk(KERN_INFO "tas driver [%s])\n", driver_name);
 
@@ -200,7 +200,7 @@ tas_init(int driver_id, const char *driver_name)
 	tas_node = find_devices("deq");
 	if (tas_node == NULL)
 		return -ENODEV;
-	paddr = (u32 *)get_property(tas_node, "i2c-address", NULL);
+	paddr = get_property(tas_node, "i2c-address", NULL);
 	if (paddr) {
 		tas_i2c_address = (*paddr) >> 1;
 		printk(KERN_INFO "using i2c address: 0x%x from device-tree\n",