of: add 'of_' prefix to machine_is_compatible()

machine is compatible is an OF-specific call.  It should have
the of_ prefix to protect the global namespace.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Michal Simek <monstr@monstr.eu>

22 files changed, 79 insertions, 79 deletions

diff --git a/drivers/char/hvc_beat.c b/drivers/char/hvc_beat.c
index 0afc8b82212..9b397c5ee1d 100644
--- a/drivers/char/hvc_beat.c
+++ b/drivers/char/hvc_beat.c
@@ -99,7 +99,7 @@ static int hvc_beat_config(char *p)
 
 static int __init hvc_beat_console_init(void)
 {
-	if (hvc_beat_useit && machine_is_compatible("Beat")) {
+	if (hvc_beat_useit && of_machine_is_compatible("Beat")) {
 		hvc_instantiate(0, 0, &hvc_beat_get_put_ops);
 	}
 	return 0;
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 579c8920e08..13826a53406 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -1280,47 +1280,47 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
 	rdev->mode_info.connector_table = radeon_connector_table;
 	if (rdev->mode_info.connector_table == CT_NONE) {
 #ifdef CONFIG_PPC_PMAC
-		if (machine_is_compatible("PowerBook3,3")) {
+		if (of_machine_is_compatible("PowerBook3,3")) {
 			/* powerbook with VGA */
 			rdev->mode_info.connector_table = CT_POWERBOOK_VGA;
-		} else if (machine_is_compatible("PowerBook3,4") ||
-			   machine_is_compatible("PowerBook3,5")) {
+		} else if (of_machine_is_compatible("PowerBook3,4") ||
+			   of_machine_is_compatible("PowerBook3,5")) {
 			/* powerbook with internal tmds */
 			rdev->mode_info.connector_table = CT_POWERBOOK_INTERNAL;
-		} else if (machine_is_compatible("PowerBook5,1") ||
-			   machine_is_compatible("PowerBook5,2") ||
-			   machine_is_compatible("PowerBook5,3") ||
-			   machine_is_compatible("PowerBook5,4") ||
-			   machine_is_compatible("PowerBook5,5")) {
+		} else if (of_machine_is_compatible("PowerBook5,1") ||
+			   of_machine_is_compatible("PowerBook5,2") ||
+			   of_machine_is_compatible("PowerBook5,3") ||
+			   of_machine_is_compatible("PowerBook5,4") ||
+			   of_machine_is_compatible("PowerBook5,5")) {
 			/* powerbook with external single link tmds (sil164) */
 			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
-		} else if (machine_is_compatible("PowerBook5,6")) {
+		} else if (of_machine_is_compatible("PowerBook5,6")) {
 			/* powerbook with external dual or single link tmds */
 			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
-		} else if (machine_is_compatible("PowerBook5,7") ||
-			   machine_is_compatible("PowerBook5,8") ||
-			   machine_is_compatible("PowerBook5,9")) {
+		} else if (of_machine_is_compatible("PowerBook5,7") ||
+			   of_machine_is_compatible("PowerBook5,8") ||
+			   of_machine_is_compatible("PowerBook5,9")) {
 			/* PowerBook6,2 ? */
 			/* powerbook with external dual link tmds (sil1178?) */
 			rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
-		} else if (machine_is_compatible("PowerBook4,1") ||
-			   machine_is_compatible("PowerBook4,2") ||
-			   machine_is_compatible("PowerBook4,3") ||
-			   machine_is_compatible("PowerBook6,3") ||
-			   machine_is_compatible("PowerBook6,5") ||
-			   machine_is_compatible("PowerBook6,7")) {
+		} else if (of_machine_is_compatible("PowerBook4,1") ||
+			   of_machine_is_compatible("PowerBook4,2") ||
+			   of_machine_is_compatible("PowerBook4,3") ||
+			   of_machine_is_compatible("PowerBook6,3") ||
+			   of_machine_is_compatible("PowerBook6,5") ||
+			   of_machine_is_compatible("PowerBook6,7")) {
 			/* ibook */
 			rdev->mode_info.connector_table = CT_IBOOK;
-		} else if (machine_is_compatible("PowerMac4,4")) {
+		} else if (of_machine_is_compatible("PowerMac4,4")) {
 			/* emac */
 			rdev->mode_info.connector_table = CT_EMAC;
-		} else if (machine_is_compatible("PowerMac10,1")) {
+		} else if (of_machine_is_compatible("PowerMac10,1")) {
 			/* mini with internal tmds */
 			rdev->mode_info.connector_table = CT_MINI_INTERNAL;
-		} else if (machine_is_compatible("PowerMac10,2")) {
+		} else if (of_machine_is_compatible("PowerMac10,2")) {
 			/* mini with external tmds */
 			rdev->mode_info.connector_table = CT_MINI_EXTERNAL;
-		} else if (machine_is_compatible("PowerMac12,1")) {
+		} else if (of_machine_is_compatible("PowerMac12,1")) {
 			/* PowerMac8,1 ? */
 			/* imac g5 isight */
 			rdev->mode_info.connector_table = CT_IMAC_G5_ISIGHT;
diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c
index 23741cec45e..d840a109f83 100644
--- a/drivers/macintosh/adb.c
+++ b/drivers/macintosh/adb.c
@@ -322,8 +322,8 @@ static int __init adb_init(void)
 		adb_controller = NULL;
 	} else {
 #ifdef CONFIG_PPC
-		if (machine_is_compatible("AAPL,PowerBook1998") ||
-			machine_is_compatible("PowerBook1,1"))
+		if (of_machine_is_compatible("AAPL,PowerBook1998") ||
+			of_machine_is_compatible("PowerBook1,1"))
 			sleepy_trackpad = 1;
 #endif /* CONFIG_PPC */
 
diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c
index 454bc501df3..5738d8bf2d9 100644
--- a/drivers/macintosh/therm_pm72.c
+++ b/drivers/macintosh/therm_pm72.c
@@ -1899,7 +1899,7 @@ static int create_control_loops(void)
 	 */
 	if (rackmac)
 		cpu_pid_type = CPU_PID_TYPE_RACKMAC;
-	else if (machine_is_compatible("PowerMac7,3")
+	else if (of_machine_is_compatible("PowerMac7,3")
 	    && (cpu_count > 1)
 	    && fcu_fans[CPUA_PUMP_RPM_INDEX].id != FCU_FAN_ABSENT_ID
 	    && fcu_fans[CPUB_PUMP_RPM_INDEX].id != FCU_FAN_ABSENT_ID) {
@@ -2234,10 +2234,10 @@ static int __init therm_pm72_init(void)
 {
 	struct device_node *np;
 
-	rackmac = machine_is_compatible("RackMac3,1");
+	rackmac = of_machine_is_compatible("RackMac3,1");
 
-	if (!machine_is_compatible("PowerMac7,2") &&
-	    !machine_is_compatible("PowerMac7,3") &&
+	if (!of_machine_is_compatible("PowerMac7,2") &&
+	    !of_machine_is_compatible("PowerMac7,3") &&
 	    !rackmac)
 	    	return -ENODEV;
 
diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c
index ba48fd76396..7fb8b4da35a 100644
--- a/drivers/macintosh/therm_windtunnel.c
+++ b/drivers/macintosh/therm_windtunnel.c
@@ -490,7 +490,7 @@ g4fan_init( void )
 	info = of_get_property(np, "thermal-info", NULL);
 	of_node_put(np);
 
-	if( !info || !machine_is_compatible("PowerMac3,6") )
+	if( !info || !of_machine_is_compatible("PowerMac3,6") )
 		return -ENODEV;
 
 	if( info->id != 3 ) {
diff --git a/drivers/macintosh/via-pmu-backlight.c b/drivers/macintosh/via-pmu-backlight.c
index a348bb0791d..4f3c4479c16 100644
--- a/drivers/macintosh/via-pmu-backlight.c
+++ b/drivers/macintosh/via-pmu-backlight.c
@@ -150,13 +150,13 @@ void __init pmu_backlight_init()
 
 	/* Special case for the old PowerBook since I can't test on it */
 	autosave =
-		machine_is_compatible("AAPL,3400/2400") ||
-		machine_is_compatible("AAPL,3500");
+		of_machine_is_compatible("AAPL,3400/2400") ||
+		of_machine_is_compatible("AAPL,3500");
 
 	if (!autosave &&
 	    !pmac_has_backlight_type("pmu") &&
-	    !machine_is_compatible("AAPL,PowerBook1998") &&
-	    !machine_is_compatible("PowerBook1,1"))
+	    !of_machine_is_compatible("AAPL,PowerBook1998") &&
+	    !of_machine_is_compatible("PowerBook1,1"))
 		return;
 
 	snprintf(name, sizeof(name), "pmubl");
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index db379c38143..42764849eb7 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -463,8 +463,8 @@ static int __init via_pmu_dev_init(void)
 #endif
 
 #ifdef CONFIG_PPC32
-  	if (machine_is_compatible("AAPL,3400/2400") ||
-  		machine_is_compatible("AAPL,3500")) {
+  	if (of_machine_is_compatible("AAPL,3400/2400") ||
+  		of_machine_is_compatible("AAPL,3500")) {
 		int mb = pmac_call_feature(PMAC_FTR_GET_MB_INFO,
 			NULL, PMAC_MB_INFO_MODEL, 0);
 		pmu_battery_count = 1;
@@ -472,8 +472,8 @@ static int __init via_pmu_dev_init(void)
 			pmu_batteries[0].flags |= PMU_BATT_TYPE_COMET;
 		else
 			pmu_batteries[0].flags |= PMU_BATT_TYPE_HOOPER;
-	} else if (machine_is_compatible("AAPL,PowerBook1998") ||
-		machine_is_compatible("PowerBook1,1")) {
+	} else if (of_machine_is_compatible("AAPL,PowerBook1998") ||
+		of_machine_is_compatible("PowerBook1,1")) {
 		pmu_battery_count = 2;
 		pmu_batteries[0].flags |= PMU_BATT_TYPE_SMART;
 		pmu_batteries[1].flags |= PMU_BATT_TYPE_SMART;
diff --git a/drivers/macintosh/windfarm_core.c b/drivers/macintosh/windfarm_core.c
index 075b4d99e35..437f55c5d18 100644
--- a/drivers/macintosh/windfarm_core.c
+++ b/drivers/macintosh/windfarm_core.c
@@ -468,9 +468,9 @@ static int __init windfarm_core_init(void)
 	DBG("wf: core loaded\n");
 
 	/* Don't register on old machines that use therm_pm72 for now */
-	if (machine_is_compatible("PowerMac7,2") ||
-	    machine_is_compatible("PowerMac7,3") ||
-	    machine_is_compatible("RackMac3,1"))
+	if (of_machine_is_compatible("PowerMac7,2") ||
+	    of_machine_is_compatible("PowerMac7,3") ||
+	    of_machine_is_compatible("RackMac3,1"))
 		return -ENODEV;
 	platform_device_register(&wf_platform_device);
 	return 0;
diff --git a/drivers/macintosh/windfarm_cpufreq_clamp.c b/drivers/macintosh/windfarm_cpufreq_clamp.c
index 900aade0619..1a77a7c97d0 100644
--- a/drivers/macintosh/windfarm_cpufreq_clamp.c
+++ b/drivers/macintosh/windfarm_cpufreq_clamp.c
@@ -76,9 +76,9 @@ static int __init wf_cpufreq_clamp_init(void)
 	struct wf_control *clamp;
 
 	/* Don't register on old machines that use therm_pm72 for now */
-	if (machine_is_compatible("PowerMac7,2") ||
-	    machine_is_compatible("PowerMac7,3") ||
-	    machine_is_compatible("RackMac3,1"))
+	if (of_machine_is_compatible("PowerMac7,2") ||
+	    of_machine_is_compatible("PowerMac7,3") ||
+	    of_machine_is_compatible("RackMac3,1"))
 		return -ENODEV;
 
 	clamp = kmalloc(sizeof(struct wf_control), GFP_KERNEL);
diff --git a/drivers/macintosh/windfarm_lm75_sensor.c b/drivers/macintosh/windfarm_lm75_sensor.c
index ed6426a1077..d8257d35afd 100644
--- a/drivers/macintosh/windfarm_lm75_sensor.c
+++ b/drivers/macintosh/windfarm_lm75_sensor.c
@@ -239,9 +239,9 @@ static struct i2c_driver wf_lm75_driver = {
 static int __init wf_lm75_sensor_init(void)
 {
 	/* Don't register on old machines that use therm_pm72 for now */
-	if (machine_is_compatible("PowerMac7,2") ||
-	    machine_is_compatible("PowerMac7,3") ||
-	    machine_is_compatible("RackMac3,1"))
+	if (of_machine_is_compatible("PowerMac7,2") ||
+	    of_machine_is_compatible("PowerMac7,3") ||
+	    of_machine_is_compatible("RackMac3,1"))
 		return -ENODEV;
 	return i2c_add_driver(&wf_lm75_driver);
 }
diff --git a/drivers/macintosh/windfarm_max6690_sensor.c b/drivers/macintosh/windfarm_max6690_sensor.c
index a67b349319e..b486eb929fd 100644
--- a/drivers/macintosh/windfarm_max6690_sensor.c
+++ b/drivers/macintosh/windfarm_max6690_sensor.c
@@ -188,9 +188,9 @@ static struct i2c_driver wf_max6690_driver = {
 static int __init wf_max6690_sensor_init(void)
 {
 	/* Don't register on old machines that use therm_pm72 for now */
-	if (machine_is_compatible("PowerMac7,2") ||
-	    machine_is_compatible("PowerMac7,3") ||
-	    machine_is_compatible("RackMac3,1"))
+	if (of_machine_is_compatible("PowerMac7,2") ||
+	    of_machine_is_compatible("PowerMac7,3") ||
+	    of_machine_is_compatible("RackMac3,1"))
 		return -ENODEV;
 	return i2c_add_driver(&wf_max6690_driver);
 }
diff --git a/drivers/macintosh/windfarm_pm112.c b/drivers/macintosh/windfarm_pm112.c
index 73d695dc9e5..e0ee80700cd 100644
--- a/drivers/macintosh/windfarm_pm112.c
+++ b/drivers/macintosh/windfarm_pm112.c
@@ -676,7 +676,7 @@ static int __init wf_pm112_init(void)
 {
 	struct device_node *cpu;
 
-	if (!machine_is_compatible("PowerMac11,2"))
+	if (!of_machine_is_compatible("PowerMac11,2"))
 		return -ENODEV;
 
 	/* Count the number of CPU cores */
diff --git a/drivers/macintosh/windfarm_pm121.c b/drivers/macintosh/windfarm_pm121.c
index 66ec4fb115b..947d4afa25c 100644
--- a/drivers/macintosh/windfarm_pm121.c
+++ b/drivers/macintosh/windfarm_pm121.c
@@ -1008,7 +1008,7 @@ static int __init pm121_init(void)
 {
 	int rc = -ENODEV;
 
-	if (machine_is_compatible("PowerMac12,1"))
+	if (of_machine_is_compatible("PowerMac12,1"))
 		rc = pm121_init_pm();
 
 	if (rc == 0) {
diff --git a/drivers/macintosh/windfarm_pm81.c b/drivers/macintosh/windfarm_pm81.c
index abbe206474f..565d5b2adc9 100644
--- a/drivers/macintosh/windfarm_pm81.c
+++ b/drivers/macintosh/windfarm_pm81.c
@@ -779,8 +779,8 @@ static int __init wf_smu_init(void)
 {
 	int rc = -ENODEV;
 
-	if (machine_is_compatible("PowerMac8,1") ||
-	    machine_is_compatible("PowerMac8,2"))
+	if (of_machine_is_compatible("PowerMac8,1") ||
+	    of_machine_is_compatible("PowerMac8,2"))
 		rc = wf_init_pm();
 
 	if (rc == 0) {
diff --git a/drivers/macintosh/windfarm_pm91.c b/drivers/macintosh/windfarm_pm91.c
index 764c525b211..bea99168ff3 100644
--- a/drivers/macintosh/windfarm_pm91.c
+++ b/drivers/macintosh/windfarm_pm91.c
@@ -711,7 +711,7 @@ static int __init wf_smu_init(void)
 {
 	int rc = -ENODEV;
 
-	if (machine_is_compatible("PowerMac9,1"))
+	if (of_machine_is_compatible("PowerMac9,1"))
 		rc = wf_init_pm();
 
 	if (rc == 0) {
diff --git a/drivers/macintosh/windfarm_smu_sensors.c b/drivers/macintosh/windfarm_smu_sensors.c
index 9c567b93f41..3c193504bb8 100644
--- a/drivers/macintosh/windfarm_smu_sensors.c
+++ b/drivers/macintosh/windfarm_smu_sensors.c
@@ -363,9 +363,9 @@ smu_cpu_power_create(struct wf_sensor *volts, struct wf_sensor *amps)
 	 * I yet have to figure out what's up with 8,2 and will have to
 	 * adjust for later, unless we can 100% trust the SDB partition...
 	 */
-	if ((machine_is_compatible("PowerMac8,1") ||
-	     machine_is_compatible("PowerMac8,2") ||
-	     machine_is_compatible("PowerMac9,1")) &&
+	if ((of_machine_is_compatible("PowerMac8,1") ||
+	     of_machine_is_compatible("PowerMac8,2") ||
+	     of_machine_is_compatible("PowerMac9,1")) &&
 	    cpuvcp_version >= 2) {
 		pow->quadratic = 1;
 		DBG("windfarm: CPU Power using quadratic transform\n");
diff --git a/drivers/net/mace.c b/drivers/net/mace.c
index d9fbad38638..43aea91e336 100644
--- a/drivers/net/mace.c
+++ b/drivers/net/mace.c
@@ -206,7 +206,7 @@ static int __devinit mace_probe(struct macio_dev *mdev, const struct of_device_i
 		mp->port_aaui = port_aaui;
 	else {
 		/* Apple Network Server uses the AAUI port */
-		if (machine_is_compatible("AAPL,ShinerESB"))
+		if (of_machine_is_compatible("AAPL,ShinerESB"))
 			mp->port_aaui = 1;
 		else {
 #ifdef CONFIG_MACE_AAUI_PORT
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 785e9cc1b20..6bc8740c21a 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -219,13 +219,13 @@ int of_device_is_compatible(const struct device_node *device,
 EXPORT_SYMBOL(of_device_is_compatible);
 
 /**
- * machine_is_compatible - Test root of device tree for a given compatible value
+ * of_machine_is_compatible - Test root of device tree for a given compatible value
  * @compat: compatible string to look for in root node's compatible property.
  *
  * Returns true if the root node has the given value in its
  * compatible property.
  */
-int machine_is_compatible(const char *compat)
+int of_machine_is_compatible(const char *compat)
 {
 	struct device_node *root;
 	int rc = 0;
@@ -237,7 +237,7 @@ int machine_is_compatible(const char *compat)
 	}
 	return rc;
 }
-EXPORT_SYMBOL(machine_is_compatible);
+EXPORT_SYMBOL(of_machine_is_compatible);
 
 /**
  *  of_device_is_available - check if a device is available for use
diff --git a/drivers/serial/pmac_zilog.c b/drivers/serial/pmac_zilog.c
index 683e66f18e8..3e2ae4807ae 100644
--- a/drivers/serial/pmac_zilog.c
+++ b/drivers/serial/pmac_zilog.c
@@ -2031,9 +2031,9 @@ static int __init pmz_console_setup(struct console *co, char *options)
 	/*
 	 * XServe's default to 57600 bps
 	 */
-	if (machine_is_compatible("RackMac1,1")
-	    || machine_is_compatible("RackMac1,2")
-	    || machine_is_compatible("MacRISC4"))
+	if (of_machine_is_compatible("RackMac1,1")
+	    || of_machine_is_compatible("RackMac1,2")
+	    || of_machine_is_compatible("MacRISC4"))
 	 	baud = 57600;
 
 	/*
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index e4e4d433b00..9ee67d6da71 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -1931,22 +1931,22 @@ static int __devinit aty128_init(struct pci_dev *pdev, const struct pci_device_i
 			 * PowerMac2,2 summer 2000 iMacs
 			 * PowerMac4,1 january 2001 iMacs "flower power"
 			 */
-			if (machine_is_compatible("PowerMac2,1") ||
-			    machine_is_compatible("PowerMac2,2") ||
-			    machine_is_compatible("PowerMac4,1"))
+			if (of_machine_is_compatible("PowerMac2,1") ||
+			    of_machine_is_compatible("PowerMac2,2") ||
+			    of_machine_is_compatible("PowerMac4,1"))
 				default_vmode = VMODE_1024_768_75;
 
 			/* iBook SE */
-			if (machine_is_compatible("PowerBook2,2"))
+			if (of_machine_is_compatible("PowerBook2,2"))
 				default_vmode = VMODE_800_600_60;
 
 			/* PowerBook Firewire (Pismo), iBook Dual USB */
-			if (machine_is_compatible("PowerBook3,1") ||
-			    machine_is_compatible("PowerBook4,1"))
+			if (of_machine_is_compatible("PowerBook3,1") ||
+			    of_machine_is_compatible("PowerBook4,1"))
 				default_vmode = VMODE_1024_768_60;
 
 			/* PowerBook Titanium */
-			if (machine_is_compatible("PowerBook3,2"))
+			if (of_machine_is_compatible("PowerBook3,2"))
 				default_vmode = VMODE_1152_768_60;
 	
 			if (default_cmode > 16) 
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 5f1b5807a48..e45ab8db2dd 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -2439,7 +2439,7 @@ static int __devinit aty_init(struct fb_info *info)
 	 * The Apple iBook1 uses non-standard memory frequencies.
 	 * We detect it and set the frequency manually.
 	 */
-	if (machine_is_compatible("PowerBook2,1")) {
+	if (of_machine_is_compatible("PowerBook2,1")) {
 		par->pll_limits.mclk = 70;
 		par->pll_limits.xclk = 53;
 	}
@@ -2659,7 +2659,7 @@ static int __devinit aty_init(struct fb_info *info)
 		      FBINFO_HWACCEL_YPAN;
 
 #ifdef CONFIG_PMAC_BACKLIGHT
-	if (M64_HAS(G3_PB_1_1) && machine_is_compatible("PowerBook1,1")) {
+	if (M64_HAS(G3_PB_1_1) && of_machine_is_compatible("PowerBook1,1")) {
 		/*
 		 * these bits let the 101 powerbook
 		 * wake up from sleep -- paulus
@@ -2690,9 +2690,9 @@ static int __devinit aty_init(struct fb_info *info)
 				if (M64_HAS(G3_PB_1024x768))
 					/* G3 PowerBook with 1024x768 LCD */
 					default_vmode = VMODE_1024_768_60;
-				else if (machine_is_compatible("iMac"))
+				else if (of_machine_is_compatible("iMac"))
 					default_vmode = VMODE_1024_768_75;
-				else if (machine_is_compatible("PowerBook2,1"))
+				else if (of_machine_is_compatible("PowerBook2,1"))
 					/* iBook with 800x600 LCD */
 					default_vmode = VMODE_800_600_60;
 				else
diff --git a/drivers/video/aty/radeon_backlight.c b/drivers/video/aty/radeon_backlight.c
index 1a056adb61c..fa1198c4ccc 100644
--- a/drivers/video/aty/radeon_backlight.c
+++ b/drivers/video/aty/radeon_backlight.c
@@ -175,9 +175,9 @@ void radeonfb_bl_init(struct radeonfb_info *rinfo)
 
 #ifdef CONFIG_PMAC_BACKLIGHT
 	pdata->negative = pdata->negative ||
-		machine_is_compatible("PowerBook4,3") ||
-		machine_is_compatible("PowerBook6,3") ||
-		machine_is_compatible("PowerBook6,5");
+		of_machine_is_compatible("PowerBook4,3") ||
+		of_machine_is_compatible("PowerBook6,3") ||
+		of_machine_is_compatible("PowerBook6,5");
 #endif
 
 	rinfo->info->bl_dev = bd;