ARM: orion5x: ts78xx debugging changes

Move to using a refined pr_fmt to avoid having to manually
prefix every message line with 'ts78xx'.

Changelog:
 v2: moved pr_fmt define ahead of includes as suggested by
	Hartley Sweeten to avoid use of leading undef
 v1: initial release
Signed-off-by: NAlexander Clouter <alex@digriz.org.uk>
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>

arch/arm/mach-orion5x/ts78xx-setup.c

@@ -8,6 +8,8 @@
  * warranty of any kind, whether express or implied.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/sysfs.h>
@@ -141,10 +143,14 @@ static int ts78xx_ts_rtc_load(void)
 			} else
 				rc = platform_device_add(&ts78xx_ts_rtc_device);
 
+			if (rc)
+				pr_info("RTC could not be registered: %d\n",
+					rc);
 			return rc;
 		}
 	}
 
+	pr_info("RTC not found\n");
 	return -ENODEV;
 };
 
@@ -316,6 +322,8 @@ static int ts78xx_ts_nand_load(void)
 	} else
 		rc = platform_device_add(&ts78xx_ts_nand_device);
 
+	if (rc)
+		pr_info("NAND could not be registered: %d\n", rc);
 	return rc;
 };
 
@@ -357,6 +365,8 @@ static int ts78xx_ts_rng_load(void)
 	} else
 		rc = platform_device_add(&ts78xx_ts_rng_device);
 
+	if (rc)
+		pr_info("RNG could not be registered: %d\n", rc);
 	return rc;
 };
 
@@ -396,7 +406,7 @@ static void ts78xx_fpga_supports(void)
 		/* enable devices if magic matches */
 		switch ((ts78xx_fpga.id >> 8) & 0xffffff) {
 		case TS7800_FPGA_MAGIC:
-			pr_warning("TS-7800 FPGA: unrecognized revision 0x%.2x\n",
+			pr_warning("unrecognised FPGA revision 0x%.2x\n",
 					ts78xx_fpga.id & 0xff);
 			ts78xx_fpga.supports.ts_rtc.present = 1;
 			ts78xx_fpga.supports.ts_nand.present = 1;
@@ -416,26 +426,20 @@ static int ts78xx_fpga_load_devices(void)
 
 	if (ts78xx_fpga.supports.ts_rtc.present == 1) {
 		tmp = ts78xx_ts_rtc_load();
-		if (tmp) {
-			pr_info("TS-78xx: RTC not registered\n");
+		if (tmp)
 			ts78xx_fpga.supports.ts_rtc.present = 0;
-		}
 		ret |= tmp;
 	}
 	if (ts78xx_fpga.supports.ts_nand.present == 1) {
 		tmp = ts78xx_ts_nand_load();
-		if (tmp) {
-			pr_info("TS-78xx: NAND not registered\n");
+		if (tmp)
 			ts78xx_fpga.supports.ts_nand.present = 0;
-		}
 		ret |= tmp;
 	}
 	if (ts78xx_fpga.supports.ts_rng.present == 1) {
 		tmp = ts78xx_ts_rng_load();
-		if (tmp) {
-			pr_info("TS-78xx: RNG not registered\n");
+		if (tmp)
 			ts78xx_fpga.supports.ts_rng.present = 0;
-		}
 		ret |= tmp;
 	}
 
@@ -460,7 +464,7 @@ static int ts78xx_fpga_load(void)
 {
 	ts78xx_fpga.id = readl(TS78XX_FPGA_REGS_VIRT_BASE);
 
-	pr_info("TS-78xx FPGA: magic=0x%.6x, rev=0x%.2x\n",
+	pr_info("FPGA magic=0x%.6x, rev=0x%.2x\n",
 			(ts78xx_fpga.id >> 8) & 0xffffff,
 			ts78xx_fpga.id & 0xff);
 
@@ -488,7 +492,7 @@ static int ts78xx_fpga_unload(void)
 	 * UrJTAG SVN since r1381 can be used to reprogram the FPGA
 	 */
 	if (ts78xx_fpga.id != fpga_id) {
-		pr_err("TS-78xx FPGA: magic/rev mismatch\n"
+		pr_err("FPGA magic/rev mismatch\n"
 			"TS-78xx FPGA: was 0x%.6x/%.2x but now 0x%.6x/%.2x\n",
 			(ts78xx_fpga.id >> 8) & 0xffffff, ts78xx_fpga.id & 0xff,
 			(fpga_id >> 8) & 0xffffff, fpga_id & 0xff);
@@ -519,7 +523,7 @@ static ssize_t ts78xx_fpga_store(struct kobject *kobj,
 	int value, ret;
 
 	if (ts78xx_fpga.state < 0) {
-		pr_err("TS-78xx FPGA: borked, you must powercycle asap\n");
+		pr_err("FPGA borked, you must powercycle ASAP\n");
 		return -EBUSY;
 	}
 
@@ -527,10 +531,8 @@ static ssize_t ts78xx_fpga_store(struct kobject *kobj,
 		value = 1;
 	else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
 		value = 0;
-	else {
-		pr_err("ts78xx_fpga_store: Invalid value\n");
+	else
 		return -EINVAL;
-	}
 
 	if (ts78xx_fpga.state == value)
 		return n;