SUN4I_CLK_CTL_CDR2_MASK 57 drivers/spi/spi-sun4i.c #define SUN4I_CLK_CTL_CDR2(div) ((div) & SUN4I_CLK_CTL_CDR2_MASK) SUN4I_CLK_CTL_CDR2_MASK 290 drivers/spi/spi-sun4i.c if (div <= (SUN4I_CLK_CTL_CDR2_MASK + 1)) {