diff options
Diffstat (limited to 'drivers/media/dvb-frontends/tda18271c2dd.c')
| -rw-r--r-- | drivers/media/dvb-frontends/tda18271c2dd.c | 68 |
1 files changed, 26 insertions, 42 deletions
diff --git a/drivers/media/dvb-frontends/tda18271c2dd.c b/drivers/media/dvb-frontends/tda18271c2dd.c index eeb2318c102f..c11563853c07 100644 --- a/drivers/media/dvb-frontends/tda18271c2dd.c +++ b/drivers/media/dvb-frontends/tda18271c2dd.c @@ -1,21 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * tda18271c2dd: Driver for the TDA18271C2 tuner * * Copyright (C) 2010 Digital Devices GmbH - * - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 only, as published by the Free Software Foundation. - * - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * To obtain the license, point your browser to - * http://www.gnu.org/copyleft/gpl.html */ #include <linux/kernel.h> @@ -105,7 +92,7 @@ struct tda_state { s32 m_RF_B2[7]; u32 m_RF3[7]; - u8 m_TMValue_RFCal; /* Calibration temperatur */ + u8 m_TMValue_RFCal; /* Calibration temperature */ bool m_bFMInput; /* true to use Pin 8 for FM Radio */ @@ -211,58 +198,55 @@ static void reset(struct tda_state *state) state->m_bFMInput = (ulFMInput == 2); } -static bool SearchMap1(struct SMap Map[], - u32 Frequency, u8 *pParam) +static bool SearchMap1(const struct SMap map[], u32 frequency, u8 *param) { int i = 0; - while ((Map[i].m_Frequency != 0) && (Frequency > Map[i].m_Frequency)) + while ((map[i].m_Frequency != 0) && (frequency > map[i].m_Frequency)) i += 1; - if (Map[i].m_Frequency == 0) + if (map[i].m_Frequency == 0) return false; - *pParam = Map[i].m_Param; + *param = map[i].m_Param; return true; } -static bool SearchMap2(struct SMapI Map[], - u32 Frequency, s32 *pParam) +static bool SearchMap2(const struct SMapI map[], u32 frequency, s32 *param) { int i = 0; - while ((Map[i].m_Frequency != 0) && - (Frequency > Map[i].m_Frequency)) + while ((map[i].m_Frequency != 0) && + (frequency > map[i].m_Frequency)) i += 1; - if (Map[i].m_Frequency == 0) + if (map[i].m_Frequency == 0) return false; - *pParam = Map[i].m_Param; + *param = map[i].m_Param; return true; } -static bool SearchMap3(struct SMap2 Map[], u32 Frequency, - u8 *pParam1, u8 *pParam2) +static bool SearchMap3(const struct SMap2 map[], u32 frequency, u8 *param1, + u8 *param2) { int i = 0; - while ((Map[i].m_Frequency != 0) && - (Frequency > Map[i].m_Frequency)) + while ((map[i].m_Frequency != 0) && + (frequency > map[i].m_Frequency)) i += 1; - if (Map[i].m_Frequency == 0) + if (map[i].m_Frequency == 0) return false; - *pParam1 = Map[i].m_Param1; - *pParam2 = Map[i].m_Param2; + *param1 = map[i].m_Param1; + *param2 = map[i].m_Param2; return true; } -static bool SearchMap4(struct SRFBandMap Map[], - u32 Frequency, u8 *pRFBand) +static bool SearchMap4(const struct SRFBandMap map[], u32 frequency, u8 *rfband) { int i = 0; - while (i < 7 && (Frequency > Map[i].m_RF_max)) + while (i < 7 && (frequency > map[i].m_RF_max)) i += 1; if (i == 7) return false; - *pRFBand = i; + *rfband = i; return true; } @@ -344,7 +328,7 @@ static int CalcMainPLL(struct tda_state *state, u32 freq) OscFreq = (u64) freq * (u64) Div; OscFreq *= (u64) 16384; - do_div(OscFreq, (u64)16000000); + do_div(OscFreq, 16000000); MainDiv = OscFreq; state->m_Regs[MPD] = PostDiv & 0x77; @@ -368,7 +352,7 @@ static int CalcCalPLL(struct tda_state *state, u32 freq) OscFreq = (u64)freq * (u64)Div; /* CalDiv = u32( OscFreq * 16384 / 16000000 ); */ OscFreq *= (u64)16384; - do_div(OscFreq, (u64)16000000); + do_div(OscFreq, 16000000); CalDiv = OscFreq; state->m_Regs[CPD] = PostDiv; @@ -400,7 +384,7 @@ static int CalibrateRF(struct tda_state *state, break; /* Switching off LT (as datasheet says) causes calibration on C1 to fail */ - /* (Readout of Cprog is allways 255) */ + /* (Readout of Cprog is always 255) */ if (state->m_Regs[ID] != 0x83) /* C1: ID == 83, C2: ID == 84 */ state->m_Regs[EP3] |= 0x40; /* SM_LT = 1 */ @@ -644,7 +628,7 @@ static int PowerScan(struct tda_state *state, if (status < 0) break; CID_Gain = Regs[EB10] & 0x3F; - state->m_Regs[ID] = Regs[ID]; /* Chip version, (needed for C1 workarround in CalibrateRF) */ + state->m_Regs[ID] = Regs[ID]; /* Chip version, (needed for C1 workaround in CalibrateRF) */ *pRF_Out = RF_in; @@ -970,7 +954,7 @@ static int RFTrackingFiltersCorrection(struct tda_state *state, Capprox = 255; - /* TODO Temperature compensation. There is defenitely a scale factor */ + /* TODO Temperature compensation. There is definitely a scale factor */ /* missing in the datasheet, so leave it out for now. */ state->m_Regs[EB14] = Capprox; |