ar0521_write_regs
return ar0521_write_regs(sensor, buf, 2);
return ar0521_write_regs(sensor, regs, ARRAY_SIZE(regs));
return ar0521_write_regs(sensor, regs, ARRAY_SIZE(regs));
return ar0521_write_regs(sensor, pll_regs, ARRAY_SIZE(pll_regs));
ret = ar0521_write_regs(sensor, initial_regs[cnt].data,