WARNING: line length of 82 exceeds 80 columns
#215: FILE: drivers/mfd/nct6694.c:128:
+			   buf, NCT6694_MAX_PACKET_SZ, &rx_len, nct6694->timeout);

WARNING: line length of 82 exceeds 80 columns
#271: FILE: drivers/mfd/nct6694.c:184:
+			   buf, NCT6694_MAX_PACKET_SZ, &rx_len, nct6694->timeout);

WARNING: line length of 81 exceeds 80 columns
#439: FILE: drivers/mfd/nct6694.c:352:
+	ret = mfd_add_hotplug_devices(dev, nct6694_dev, ARRAY_SIZE(nct6694_dev));

CHECK: struct mutex definition without comment
#577: FILE: include/linux/mfd/nct6694.h:90:
+	struct mutex access_lock;

CHECK: struct mutex definition without comment
#578: FILE: include/linux/mfd/nct6694.h:91:
+	struct mutex irq_lock;

total: 0 errors, 3 warnings, 2 checks, 573 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 5d15e6dafc5d ("mfd: Add core driver for Nuvoton NCT6694") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 3 warnings, 2 checks, 573 lines checked