5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
22 lines
493 B
C
22 lines
493 B
C
// 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);
|
|
}
|