CLOCK_CNT_LOW_SHIFT 51 drivers/spi/spi-meson-spifc.c #define CLOCK_CNT_LOW_MASK (0x3f << CLOCK_CNT_LOW_SHIFT) CLOCK_CNT_LOW_SHIFT 177 drivers/spi/spi-meson-spifc.c value |= (n << CLOCK_CNT_LOW_SHIFT) & CLOCK_CNT_LOW_MASK;