CHECK: struct mutex definition without comment
#108: FILE: drivers/gpio/gpio-nct6694.c:37:
+	struct mutex lock;

WARNING: ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP
#270: FILE: drivers/gpio/gpio-nct6694.c:199:
+		return -ENOTSUPP;

WARNING: ENOTSUPP is not a SUSV4 error code, prefer EOPNOTSUPP
#381: FILE: drivers/gpio/gpio-nct6694.c:310:
+		return -ENOTSUPP;

WARNING: line length of 83 exceeds 80 columns
#476: FILE: drivers/gpio/gpio-nct6694.c:405:
+		return dev_err_probe(dev, ret, "Failed to get irq trigger type\n");

WARNING: From:/Signed-off-by: email address mismatch: 'From: Ming Yu <a0282524688@gmail.com>' != 'Signed-off-by: Ming Yu <tmyu0@nuvoton.com>'

total: 0 errors, 4 warnings, 1 checks, 470 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 a28075ac2254 ("gpio: Add Nuvoton NCT6694 GPIO support") 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, 4 warnings, 1 checks, 470 lines checked