MAX_SPI_FREQ_HZ    16 drivers/iio/adc/ad7606_spi.c #define MAX_SPI_FREQ_HZ		23500000	/* VDRIVE above 4.75 V */
MAX_SPI_FREQ_HZ    17 drivers/input/misc/adxl34x-spi.c #define MAX_SPI_FREQ_HZ		5000000
MAX_SPI_FREQ_HZ    38 drivers/input/touchscreen/ad7877.c #define MAX_SPI_FREQ_HZ			20000000
MAX_SPI_FREQ_HZ    19 drivers/input/touchscreen/ad7879-spi.c #define MAX_SPI_FREQ_HZ      5000000