sysreset: Tidy up a few comments and logging

Some comments are incorrect or missing pieces. Fix these and use logging
to print the error.

Signed-off-by: Simon Glass <sjg@chromium.org>

drivers/sysreset/sysreset-uclass.c

@@ -4,6 +4,8 @@
  * Written by Simon Glass <sjg@chromium.org>
  */
 
+#define LOG_CATEGORY UCLASS_SYSRESET
+
 #include <common.h>
 #include <sysreset.h>
 #include <dm.h>
@@ -64,7 +66,7 @@ void sysreset_walk_halt(enum sysreset_t type)
 		mdelay(100);
 
 	/* Still no reset? Give up */
-	debug("System reset not supported on this platform\n");
+	log_err("System reset not supported on this platform\n");
 	hang();
 }
 

include/sysreset.h

@@ -31,6 +31,7 @@ struct sysreset_ops {
 	/**
 	 * get_status() - get printable reset status information
 	 *
+	 * @dev:	Device to check
 	 * @buf:	Buffer to receive the textual reset information
 	 * @size:	Size of the passed buffer
 	 * @return 0 if OK, -ve on error
@@ -49,8 +50,9 @@ struct sysreset_ops {
 int sysreset_request(struct udevice *dev, enum sysreset_t type);
 
 /**
- * get_status() - get printable reset status information
+ * sysreset_get_status() - get printable reset status information
  *
+ * @dev:	Device to check
  * @buf:	Buffer to receive the textual reset information
  * @size:	Size of the passed buffer
  * @return 0 if OK, -ve on error

test/dm/sysreset.c

@@ -62,7 +62,6 @@ static int dm_test_sysreset_get_status(struct unit_test_state *uts)
 
 	return 0;
 }
-
 DM_TEST(dm_test_sysreset_get_status, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 
 /* Test that we can walk through the sysreset devices */