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/OK3568_Linux_fs/kernel/drivers/input/touchscreen/focaltech_touch/
H A Dfocaltech_upgrade_ft8201.c208 u16 cfcs = 0; in cal_lcdinitcode_checksum() local
216 cfcs ^= ((ptr[i] << 8) + ptr[i + 1]); in cal_lcdinitcode_checksum()
218 if (cfcs & 1) { in cal_lcdinitcode_checksum()
219 cfcs = (u16)((cfcs >> 1) ^ ((1 << 15) + (1 << 10) + (1 << 3))); in cal_lcdinitcode_checksum()
221 cfcs >>= 1; in cal_lcdinitcode_checksum()
225 return cfcs; in cal_lcdinitcode_checksum()