WARNING: line length of 84 exceeds 80 columns
#186: FILE: drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c:110:
+static void thead_dwmac_fix_speed(void *priv, unsigned int speed, unsigned int mode)

WARNING: line length of 93 exceeds 80 columns
#211: FILE: drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c:135:
+		writel(FIELD_PREP(GMAC_PLLCLK_DIV_EN, 0), dwmac->apb_base + GMAC_PLLCLK_DIV);

WARNING: line length of 81 exceeds 80 columns
#229: FILE: drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c:153:
+		      FIELD_PREP(GMAC_PLLCLK_DIV_MASK, GMAC_PLLCLK_DIV_NUM(div));

WARNING: line length of 81 exceeds 80 columns
#282: FILE: drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c:206:
+	writel(GMAC_RXCLK_DELAY_VAL(0), dwmac->apb_base + GMAC_RXCLK_DELAY_CTRL);

WARNING: line length of 81 exceeds 80 columns
#283: FILE: drivers/net/ethernet/stmicro/stmmac/dwmac-thead.c:207:
+	writel(GMAC_TXCLK_DELAY_VAL(0), dwmac->apb_base + GMAC_TXCLK_DELAY_CTRL);

total: 0 errors, 5 warnings, 0 checks, 298 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 ab347ccc5113 ("net: stmmac: Add glue layer for T-HEAD TH1520 SoC") 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, 5 warnings, 0 checks, 298 lines checked