// SPDX-License-Identifier: GPL-2.0 /* * cxd2880_common.c * Sony CXD2880 DVB-T2/T tuner + demodulator driver * common functions * * Copyright (C) 2016, 2017, 2018 Sony Semiconductor Solutions Corporation */ #include "cxd2880_common.h" int cxd2880_convert2s_complement(u32 value, u32 bitlen) { if (!bitlen || bitlen >= 32) return (int)value; if (value & (u32)(1 << (bitlen - 1))) return (int)(GENMASK(31, bitlen) | value); else return (int)(GENMASK(bitlen - 1, 0) & value); }