WARNING: line length of 88 exceeds 80 columns
#59: FILE: drivers/net/dsa/lantiq/mxl-gsw1xx.c:562:
+static int gsw1xx_rmii_slew_rate(const struct device_node *np, struct gsw1xx_priv *priv,

WARNING: line length of 95 exceeds 80 columns
#74: FILE: drivers/net/dsa/lantiq/mxl-gsw1xx.c:577:
+	return regmap_update_bits(priv->shell, GSW1XX_SHELL_RGMII_SLEW_CFG, mask, mask * rate);

WARNING: line length of 90 exceeds 80 columns
#91: FILE: drivers/net/dsa/lantiq/mxl-gsw1xx.c:594:
+				     "maxlinear,slew-rate-txc", RGMII_SLEW_CFG_DRV_TXC) ?:

WARNING: line length of 88 exceeds 80 columns
#93: FILE: drivers/net/dsa/lantiq/mxl-gsw1xx.c:596:
+				     "maxlinear,slew-rate-txd", RGMII_SLEW_CFG_DRV_TXD);

total: 0 errors, 4 warnings, 0 checks, 91 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 0d1fe8c409b0 ("net: dsa: mxl-gsw1xx: Support R(G)MII slew rate configuration") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES 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, 0 checks, 91 lines checked