BIT_REDGE
imx7_csi_reg_write(csi, BIT_SOF_POL | BIT_REDGE | BIT_GCLK_MODE |
cr1 = BIT_SOF_POL | BIT_REDGE | BIT_GCLK_MODE | BIT_HSYNC_POL
cr1 = BIT_SOF_POL | BIT_REDGE | BIT_HSYNC_POL | BIT_FCC