/*
* Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _MXS_SAIF_H
#define _MXS_SAIF_H
#define SAIF_CTRL 0x0
#define SAIF_STAT 0x10
#define SAIF_DATA 0x20
#define SAIF_VERSION 0X30
/* SAIF_CTRL */
#define BM_SAIF_CTRL_SFTRST 0x80000000
#define BM_SAIF_CTRL_CLKGATE 0x40000000
#define BP_SAIF_CTRL_BITCLK_MULT_RATE 27
#define BM_SAIF_CTRL_BITCLK_MULT_RATE 0x38000000
#define BF_SAIF_CTRL_BITCLK_MULT_RATE(v) \
(((v) << 27) & BM_SAIF_CTRL_BITCLK_MULT_RATE)
#define BM_SAIF_CTRL_BITCLK_BASE_RATE 0x04000000
#define BM_SAIF_CTRL_FIFO_ERROR_IRQ_EN 0x02000000
#define BM_SAIF_CTRL_FIFO_SERVICE_IRQ_EN 0x01000000
#define BP_SAIF_CTRL_RSRVD2 21
#define BM_SAIF_CTRL_RSRVD2 0x00E00000
#define BP_SAIF_CTRL_DMAWAIT_COUNT 16
#define BM_SAIF_CTRL_DMAWAIT_COUNT 0x001F0000
#define BF_SAIF_CTRL_DMAWAIT_COUNT(v) \
(((v) << 16) & BM_SAIF_CTRL_DMAWAIT_COUNT)
#define BP_SAIF_CTRL_CHANNEL_NUM_SELECT 14
#define BM_SAIF_CTRL_CHANNEL_NUM_SELECT 0x0000C000
#define BF_SAIF_CTRL_CHANNEL_NUM_SELECT(v) \
(((v) << 14) & BM_SAIF_CTRL_CHANNEL_NUM_SELECT)
#define BM_SAIF_CTRL_LRCLK_PULSE 0x00002000
#define BM_SAIF_CTRL_BIT_ORDER 0x00001000
#define BM_SAIF_CTRL_DELAY 0x00000800
#define BM_SAIF_CTRL_JUSTIFY 0x00000400
#define BM_SAIF_CTRL_LRCLK_POLARITY 0x00000200
#define BM_SAIF_CTRL_BITCLK_EDGE 0x00000100
#define BP_SAIF_CTRL_WORD_LENGTH 4
#define BM_SAIF_CTRL_WORD_LENGTH 0x000000F0
#define BF_SAIF_CTRL_WORD_LENGTH(v) \
(((v) << 4) & BM_SAIF_CTRL_WORD_LENGTH)
#define BM_SAIF_CTRL_BITCLK_48XFS_ENABLE 0x00000008
#define BM_SAIF_CTRL_SLAVE_MODE 0x00000004
#define BM_SAIF_CTRL_READ_MODE 0x00000002
#define BM_SAIF_CTRL_RUN 0x00000001
/* SAIF_STAT */
#define BM_SAIF_STAT_PRESENT 0x80000000
#define BP_SAIF_STAT_RSRVD2 17
#define BM_SAIF_STAT_RSRVD2 0x7FFE0000
#define BF_SAIF_STAT_RSRVD2(v) \
(((v) << 17) & BM_SAIF_STAT_RSRVD2)
#define BM_SAIF_STAT_DMA_PREQ 0x00010000
#define BP_SAIF_STAT_RSRVD1 7
#define BM_SAIF_STAT_RSRVD1 0x0000FF80
#define BF_SAIF_STAT_RSRVD1(v) \
(((v) << 7) & BM_SAIF_STAT_RSRVD1)
#define BM_SAIF_STAT_FIFO_UNDERFLOW_IRQ 0x00000040
#define BM_SAIF_STAT_FIFO_OVERFLOW_IRQ 0x00000020
#define BM_SAIF_STAT_FIFO_SERVICE_IRQ 0x00000010
#define BP_SAIF_STAT_RSRVD0 1
#define BM_SAIF_STAT_RSRVD0 0x0000000E
#define BF_SAIF_STAT_RSRVD0(v) \
(((v) << 1) & BM_SAIF_STAT_RSRVD0)
#define BM_SAIF_STAT_BUSY 0x00000001
/* SAFI_DATA */
#define BP_SAIF_DATA_PCM_RIGHT 16
#define BM_SAIF_DATA_PCM_RIGHT 0xFFFF0000
#define BF_SAIF_DATA_PCM_RIGHT(v) \
(((v) << 16) & BM_SAIF_DATA_PCM_RIGHT)
#define BP_SAIF_DATA_PCM_LEFT 0
#define BM_SAIF_DATA_PCM_LEFT 0x0000FFFF
#define BF_SAIF_DATA_PCM_LEFT(v) \
(((v) << 0) & BM_SAIF_DATA_PCM_LEFT)
/* SAIF_VERSION */
#define BP_SAIF_VERSION_MAJOR 24
#define BM_SAIF_VERSION_MAJOR 0xFF000000
#define BF_SAIF_VERSION_MAJOR(v) \
(((v) << 24) & BM_SAIF_VERSION_MAJOR)
#define BP_SAIF_VERSION_MINOR 16
#define BM_SAIF_VERSION_MINOR 0x00FF0000
#define BF_SAIF_VERSION_MINOR(v) \
(((v) << 16) & BM_SAIF_VERSION_MINOR)
#define BP_SAIF_VERSION_STEP 0
#define BM_SAIF_VERSION_STEP 0x0000FFFF
#define BF_SAIF_VERSION_STEP(v) \
(((v) << 0) & BM_SAIF_VERSION_STEP)
#define MXS_SAIF_MCLK 0
#include "mxs-pcm.h"
struct mxs_saif {
struct device *dev;
struct clk *clk;
unsigned int mclk;
unsigned int mclk_in_use;
void __iomem *base;
unsigned int id;
unsigned int master_id;
unsigned int cur_rate;
unsigned int ongoing;
u32 fifo_underrun;
u32 fifo_overrun;
enum {
MXS_SAIF_STATE_STOPPED,
MXS_SAIF_STATE_RUNNING,
} state;
};
extern int mxs_saif_put_mclk(unsigned int saif_id);
extern int mxs_saif_get_mclk(unsigned int saif_id, unsigned int mclk,
unsigned int rate);
#endif
d'>include| mode: | |
| |
net: thunderx: avoid dereferencing xcv when NULL
This fixes the following smatch and coccinelle warnings:
drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119 xcv_setup_link() error: we previously assumed 'xcv' could be null (see line 118) [smatch]
drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119:16-20: ERROR: xcv is NULL but dereferenced. [coccinelle]
Fixes: 6465859aba1e66a5 ("net: thunderx: Add RGMII interface type support")
Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net>
Cc: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>