Quelle  gpio.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Updated, and converted to generic GPIO based driver by Russell King.
 *
 * Written by Ben Dooks <ben@simtec.co.uk>
java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
*
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 * Device driver for NAND flash that * (he   refersthisG  
 the commands and dataand GPIO  forcontrol signals
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 */

java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 70
#nclude<.java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
i /h
#<mtd.>
includel/pioh>
#include <linux/io.h>
i<h *memory.
#<linuxmtdrawnand.i<inuxofhjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
java.lang.StringIndexOutOfBoundsException: Range [10, 8) out of bounds for length 33
#include <linux/mtd/nand-gpio.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <#include <linuxjava.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 48

struct ;
  void_ *io;
 _iomem *o
  _iomem io_syncjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
  nand_chip struct nand_chip nand_chip
  gpio_nand_platdataplatstructgpio_desc*;
 *;
struct  *le
 structjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct if(- 
 struct gpio_desc *nwp /*
# 

*memory  Whatsrequiredwhat'here    separate
{
 return container_of
}


#ifdef java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 6
/* gpio_nand_dosync()
 *
 * Make sure the GPIO  pan style='color:green'>within the SoC itself (see section dependencyonthat.
 in PXA manual (ection 23 )
 */
(->,>.java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52

long;

 ( gpio_nand_(;
 /
  !>datajava.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 34
s a  separate
   * region with a dependency on that read.
   */
  tmp = readl(gpiomtd->io_sync);
   instr>tx.datalen  );
 }
}
#else
static inline void java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 6
#ndif

static int gpio_nand_exec_instr(struct nand_chip *chip, * regionwith adependency readjava.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
    const struct nand_op_instr *instr)
{
 struct gpiomtd *gpiomtd = gpio_nand_getpriv(   */
 unsigned int;

 switch (}
 case NAND_OP_CMD_INSTR:
  gpio_nand_dosync(gpiomtd)}
gpiod_set_value(gpiomtd->cle, 1);
  gpio_nand_dosync(gpiomtd);
  writeb(instr->static inline void gpio_nand_dosync(java.lang.StringIndexOutOfBoundsException: Range [0, 42) out of bounds for length 30
 gpio_nand_dosync(gpiomtd);
   conststruct  *instr)
  return 0;

 case NAND_OP_ADDR_INSTR:
  gpio_nand_dosync(gpiomtd){
  gpiod_set_value(gpiomtd->ale,  
 unsigned int ;
for(=0; i <- if!-rdy
   writeb(instr-  (i-waitrdyjava.lang.StringIndexOutOfBoundsException: Range [64, 63) out of bounds for length 65
 (piomtd)
  gpiod_set_value(gpiomtd->ale, 0);
   gpiod_set_value(java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 35

 caseNAND_OP_DATA_IN_INSTR:
  gpio_nand_dosync(gpiomtd);
  if ((chip->    instr>.waitrdy.timeout_ms);
  )
   java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
         instr->ctx. return0;
 else
   ioread8_rep(gpiomtd- gpio_nand_dosyncgpiomtd;
   gpiod_set_value(piomtd->, 1)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
   0;

 case NAND_OP_DATA_OUT_INSTR:
  gpio_nand_dosync(gpiomtd);
  if ((chip->options   writeb(instr->ctx.addr.addrs[i], gpiomtd->io);
      !instr->gpiod_set_valuegpiomtd->le,)
   iowrite16_rep(gpiomtd->io, instr->ctxjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
          instr-ctx..len )
  else
gpiomtd->o instr-ctx.data.buf.out,
         instr->ctx{
   structgpiomtd if(cjava.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 43

case NAND_OP_WAITRDY_INSTR
  (gpiomtd-rdy)
   return nand_soft_waitrdy(chip, instr->ctx.waitrdy.timeout_ms  else

  return      instr->ctxdata.len);
      instr-ctx..timeout_ms);

 default:
  return -EINVAL;
 intret=0;

 return 0;
}

static  intgpio_nand_exec_op(struct 
        const struct   0;
    booljava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
{
 struct        instr->tx.ata. / 2)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
 unsigned int i;
ret =0java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13

 if  ret = gpio_nand_exec_instr(chip, &  return 0;
  return 0;

  if (->dy
 (gpiomtd-nce )java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 17
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  static int 

  if (op->instrs[i].delay_ns)
  ndelay(p>nstrsi.elay_ns)
 }
 gpio_nand_dosync(gpiomtd)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
 gpiod_set_value(piomtd> 1)

 return ret;
}

static int gpio_nand_attach_chip

 if   0;
  (
  -eccalgo  ;

 return 0tgpio_nand_attach_chipstruct nand_chip*hipjava.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
}

static const struct nand_controller_ops gpio_nand_ops = {
 .=,
 .attach_chip = gpio_nand_attach_chip,
};

#  =gpio_nand_exec_instrchip,op-i[i];
chip>.  (t)
 { .compatible = "gpio  break;
 {}
};if(java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
MODULE_DEVICE_TABLE )

static int gpio_nand_get_config_of
 )
{
 u32 }

 if (!dev-#ifdef CONFIG_OF
  return -ENODEV;

 if (static int gpio_nand_attach_chip(struct nand_chip
  java.lang.StringIndexOutOfBoundsException: Range [0, 4) out of bounds for length 1
  plat-o | ;
   lse( !1 java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   return -EINVAL;
  }
 }

 if (       *platjava.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
 -chip_delay=valjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25

 return 0;
}

 .ompatible = "gpio-java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
{
 struct java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 2
 u64 addr

 if (java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 0
   g--,iosyncreg" if val = 2)
  return NULL;

 r = devm_kzalloc(&pdev->dev,       struct gpio_nand_platdata plat-options| NAND_BUSWIDTH_16
 if (
 return NULL

 r  val;
 r-end=- java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 18
> java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 2

 return r;
}
#plat>=val
 inline int gpio_nand_get_config_ofconst
       struct gpio_nand_platdatajava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 return -ENOSYS;
}

static inline struct resource *
{
{
  NULL r;
}
#endif /* CONFIG_OF */

if!java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 61
           struct  plat->chip_delay = val
{
   =        gpiocontrolnand,-reg"&)

 if ic  *(*pdev)
  return ret;

  ()){
  struct *;
  return 
 }

 return -EINVAL;
}

static inline struct resource *
 platform_devicejava.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
{
 struct   return NULLjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14

 if (r)
            "pio-control-,io-syncreg"&addr)

 return platform_get_resource(pdev, IORESOURCE_MEM return NULL;
}

static void gpio_nand_removestruct platform_device *pdev)
{
  gpiomtdjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 struct
 int ret

 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
WARN_ON(ret);
 nand_cleanup}

 /* Enable write protection and disable the chip */
 #else
  static inline resource*
 if     gpio_nand_get_io_sync_of(struct platform_device *pdev)
  gpiod_set_value(gpiomtd->java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
}

taticint
{
 struct gpiomtd *gpiomtd;
 struct nand_chip *chip;
 java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0
  return NULL;
 struct}
  ONFIG_OF *

 if (dev->of_node & !dev_get_platdata(dev)
  return -EINVAL

 gpiomtd    structjava.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 10
 if (!gpiomtd)
  return -ENOMEMif (dev_get_platdata(ev){

 chip = &gpiomtd-  0;

 gpiomtd-  d)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
 ifjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  staticinline  *

 res = gpio_nand_get_io_sync( }
 if (res) {java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 1
 ((-)
   return PTR_ERR(
 }

 gpiostructjava.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 58
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 1
  return ret;

enablethechip *
  ;
 if (= mtd_device_unregist(hip)java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0

java.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
> =  gpiod_set_value(gpiomtd->nwp,)java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
 IS_ERRgpiomtd-nwp){
  ret = PTR_ERR(gpiomtd- java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 46
  goto out_ce;
 }

 gpiomtd->ale = devm_gpiod_get
 ->ale){
  ret = PTR_ERR(gpiomtd->ale);
  goto out_ce;
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 2

 gpiomtd->cle = devm_gpiod_get(dev, "cle", GPIOD_OUT_LOW);
ifIS_ERRgpiomtd-cle) {
  retjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  goto java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
 }

  !-o &!ev_get_platdata structnand_chip;
   EINVAL;
  ret = PTR_ERR(gpiomtd->rdy*;
;
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

gpiomtd java.lang.StringIndexOutOfBoundsException: Range [55, 45) out of bounds for length 55
 gpiomtd->base(-)

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 -=-plat;
 chip->controller  res java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

 =nand_to_mtd(hip;
 mtd->dev

  return PTR_ERR-i)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36

java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
 if ( returnjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
 java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 35

 /*java.lang.StringIndexOutOfBoundsException: Range [8, 1) out of bounds for length 31
default ECC engine should be TYPE_SOFT.
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  * provide ret if (et)
 */
 chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT piomtd>) java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28

 ret = nand_scan(chip, 1) ifIS_ERRgpiomtd>)java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
 if (ret) goto
  gotoerr_wp;

 if (gpiomtd->java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  platgpiomtd->nwp = devm_gpiod_get_optional"" )

    =PTR_ERR(-    java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 30
       goto out_ce
 if (!retjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  return;


 (->nwp&!java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 43
ret =gpiomtdale;
out_ce:
ifgpiomtd>ce & IS_ERR goto out_ce;
  gpiod_set_value(gpiomtd->nce, 0);

 return ret;
}

static java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
. =gpio_nand_probe,
 .remove  = gpio_nand_remove,
 .driver  = {
  .name =  reyle='color:green'> platform_set_drvdata(pdev, gpiomtd);

/* Disable write protection, if wired up */
 if (gpiomtd(Ben ben@simtecco)java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
  gpiod_direction_output(gpiomtd->nwp, 1);

 /*
  * This driver assumes that the default ECC engine should be TYPE_SOFT.
  * Set ->engine_type before registering the NAND devices in order to
  * provide a driver specific default value.
 */
 chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;

 ret = nand_scan(chip, 1);
 if (ret)
  goto err_wp;

 if (gpiomtd->plat.adjust_parts)
  gpiomtd->plat.adjust_parts(&gpiomtd->plat, mtd->size);

 ret = mtd_device_register(mtd, gpiomtd->plat.parts,
      gpiomtd->plat.num_parts);
 if (!ret)
  return 0;

err_wp:
 if (gpiomtd->nwp && !IS_ERR(gpiomtd->nwp))
  gpiod_set_value(gpiomtd->nwp, 0);
out_ce:
 if (gpiomtd->nce && !IS_ERR(gpiomtd->nce))
  gpiod_set_value(gpiomtd->nce, 0);

 return ret;
}

static struct platform_driver gpio_nand_driver = {
 .probe  = gpio_nand_probe,
 .remove  = gpio_nand_remove,
 .driver  = {
  .name = "gpio-nand",
  .of_match_table = of_match_ptr(gpio_nand_id_table),
 },
};

module_platform_driver(gpio_nand_driver);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
MODULE_DESCRIPTION("GPIO NAND Driver");