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f6d706dd9b
This function always return '0' and no callers use the return value. So make it a void function. This eliminates the following coccicheck warning: ./drivers/char/mwave/tp3780i.c:182:5-11: Unneeded variable: "retval". Return "0" on line 187 Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Link: https://lore.kernel.org/r/1615366834-20545-1-git-send-email-yang.lee@linux.alibaba.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
104 lines
4.3 KiB
C
104 lines
4.3 KiB
C
/*
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*
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* tp3780i.h -- declarations for tp3780i.c
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*
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*
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* Written By: Mike Sullivan IBM Corporation
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*
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* Copyright (C) 1999 IBM Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* NO WARRANTY
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* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
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* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
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* solely responsible for determining the appropriateness of using and
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* distributing the Program and assumes all risks associated with its
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* exercise of rights under this Agreement, including but not limited to
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* the risks and costs of program errors, damage to or loss of data,
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* programs or equipment, and unavailability or interruption of operations.
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*
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* DISCLAIMER OF LIABILITY
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* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
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* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*
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* 10/23/2000 - Alpha Release
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* First release to the public
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*/
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#ifndef _LINUX_TP3780I_H
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#define _LINUX_TP3780I_H
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#include <asm/io.h>
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#include "mwavepub.h"
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/* DSP abilities constants for 3780i based Thinkpads */
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#define TP_ABILITIES_INTS_PER_SEC 39160800
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#define TP_ABILITIES_DATA_SIZE 32768
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#define TP_ABILITIES_INST_SIZE 32768
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#define TP_ABILITIES_MWAVEOS_NAME "mwaveos0700.dsp"
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#define TP_ABILITIES_BIOSTASK_NAME "mwbio701.dsp"
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/* DSP configuration values for 3780i based Thinkpads */
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#define TP_CFG_NumTransfers 3 /* 16 transfers */
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#define TP_CFG_RerequestTimer 1 /* 2 usec */
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#define TP_CFG_MEMCS16 0 /* Disabled, 16-bit memory assumed */
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#define TP_CFG_IsaMemCmdWidth 3 /* 295 nsec (16-bit) */
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#define TP_CFG_GateIOCHRDY 0 /* No IOCHRDY gating */
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#define TP_CFG_EnablePwrMgmt 1 /* Enable low poser suspend/resume */
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#define TP_CFG_HBusTimerValue 255 /* HBus timer load value */
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#define TP_CFG_DisableLBusTimeout 0 /* Enable LBus timeout */
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#define TP_CFG_N_Divisor 32 /* Clock = 39.1608 Mhz */
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#define TP_CFG_M_Multiplier 37 /* " */
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#define TP_CFG_PllBypass 0 /* don't bypass */
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#define TP_CFG_ChipletEnable 0xFFFF /* Enable all chiplets */
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typedef struct {
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int bDSPEnabled;
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int bShareDspIrq;
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int bShareUartIrq;
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DSP_3780I_CONFIG_SETTINGS rDspSettings;
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} THINKPAD_BD_DATA;
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int tp3780I_InitializeBoardData(THINKPAD_BD_DATA * pBDData);
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int tp3780I_CalcResources(THINKPAD_BD_DATA * pBDData);
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int tp3780I_ClaimResources(THINKPAD_BD_DATA * pBDData);
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int tp3780I_ReleaseResources(THINKPAD_BD_DATA * pBDData);
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int tp3780I_EnableDSP(THINKPAD_BD_DATA * pBDData);
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int tp3780I_DisableDSP(THINKPAD_BD_DATA * pBDData);
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int tp3780I_ResetDSP(THINKPAD_BD_DATA * pBDData);
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int tp3780I_StartDSP(THINKPAD_BD_DATA * pBDData);
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int tp3780I_QueryAbilities(THINKPAD_BD_DATA * pBDData, MW_ABILITIES * pAbilities);
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void tp3780I_Cleanup(THINKPAD_BD_DATA *pBDData);
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int tp3780I_ReadWriteDspDStore(THINKPAD_BD_DATA * pBDData, unsigned int uOpcode,
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void __user *pvBuffer, unsigned int uCount,
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unsigned long ulDSPAddr);
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int tp3780I_ReadWriteDspIStore(THINKPAD_BD_DATA * pBDData, unsigned int uOpcode,
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void __user *pvBuffer, unsigned int uCount,
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unsigned long ulDSPAddr);
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#endif
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