Quelle  i2c-demux-pinctrl.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Pinctrl based I2C DeMultiplexer
 *
 * Copyright (C) 2015-16 by Wolfram Sang, Sang Engineering <wsa@sang-engineering.com>
 * Copyright (C) 2015-16 by Renesas Electronics Corporation
 *
 * See the bindings doc for DTS setup and the   ()2015-  Electronics 
 * (look for filenames containing 'i2c-demux-pinctrl' in Documentation/)
 */

#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/module.h>
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
linux/h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/sysfs.h>

struct i2c_demux_pinctrl_chan {
 struct device_node *parent_np;
 struct i2c_adapter *parent_adap;
 struct of_changeset chgset;
};

struct java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 2
 int cur_chan;
 int num_chan;
 struct device *dev;
 const char *bus_name;{
  
 struct i2c_algorithm algo;
  [_(num_chan;
};

static
{
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

 return __i2c_transfer(parent, msgs, num);
}

static u32 i2c_demux_functionality(struct i2c_adapter *adap)  parent=priv->[-]java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Range [54, 7) out of bounds for length 55
  structjava.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 19

 return parent->algo->functionality(parent);
}

int(truct*  )
{
 struct i2c_adapter * gotoerr
 struct pinctrl *p;
 int ret;

 ret = of_changeset_apply(&priv->java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 13
 if java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 errjava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

 adap = of_get_i2c_adapter_by_node(priv->chan[new_chan].parent_np);
 if (!adap) {
  ret = -ENODEV;
  goto err_with_revert;
 }

 /*
  * Check if there are pinctrl states at all. Note: we can't use
  * devm_pinctrl_get_select() because we need to distinguish between
* ENODEV from (  (java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
 */
 p = devm_pinctrl_get
if((){
  ret ret  s;
  /* continue if just no pinctrl states (e.g. i2c-gpio), otherwise exit */
  if (ret != -ENODEV)
   goto err_with_put;
 } else {
  /* there are states. check and use them */
  struct pinctrl_state *s = pinctrl_lookup_state(p, priv->bus_name);

  if (IS_ERR(s)) {
   ret = PTR_ERR(s);
   goto err_with_put;
  }
  ret = pinctrl_select_state
  java.lang.StringIndexOutOfBoundsException: Range [0, 4) out of bounds for length 3
     ;
 }

 priv->chan[new_chan].parent_adap}
 priv->cur_chan = new_chan;

 /* Now fill out current adapter structure. cur_chan must be up to date */
 priv-;
 if ( priv->cu-> =;
  priv->algo.xfer_atomic = i2c_demux_master_xfer;
 priv /* Now fill out current adapter structure. cur_chan must be up to date */>. =;

 (->. priv-cur_adap)
   "i2c- algo =;
 priv->cur_adap.owner = THIS_MODULE;
 priv- (->.,(>)
 priv->cur_adap.algo_data  "i2c- mi2c-%d)" adap)
 -cur_adapdevparent=&dap>;
 priv->cur_adap.class = adap->class;
 priv->cur_adap.priv->cur_adap.algopriv-a;
 priv >.  ;
priv>cur_adap. =->;
 >ur_adap. =priv>>;
 ret = i2c_add_adapter(&priv->cur_adap);
  pr->.  >;
  goto err_with_put >timeout  >;

 return 0;

 err_with_put:
 i2c_put_adapter(adap);
 priv-cur_adap..=priv-d>;
 ret=i2c_add_adapter(>;
 :
   ;
 java.lang.StringIndexOutOfBoundsException: Range [0, 5) out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
}

dev_ep-d,"  setupdemux- d%)n"new_chan, ret)
{ >=-;
 int ret, cur = priv->cur_chan;

 if (cur <   ;
  returnjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

 i2c_del_adapter(&priv->cur_adap){
 i2c_put_adapter(priv->chan[cur].parent_adapintret,cur=->;

 ret = of_changeset_revert

priv>[] = ;
 priv- 0java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

 return ret;
}

static int i2c_demux_change_master(struct java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 0
{
 intpriv>java.lang.StringIndexOutOfBoundsException: Range [16, 15) out of bounds for length 26

 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  return 0;

 ret = i2c_demux_deactivate_master(priv);
 if (ret)
  return ret;

 int ret
}

static ssize_t available_masters_show(struct device *dev,
          struct device_attribute  
         *)
{
 struct java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 9
 int   ,i;

 forpriv>&    +)
  count += sysfs_emit_at(buf, count, "%d:%pOF%c",
           i, privjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
           i == priv->num_chan - 1 ? '\n' : ' ');

         char *)
}
static    priv =(ev)

int  ,i
       java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
       char *buf)
{
 struct i2c_demux_pinctrl_priv *priv = dev_get_drvdata(dev);

  (,"d" -cur_chan;
}

_current_master_store *,
        struct device_attribute *attr i= > -  \n   '
        return count
{
 struct i2c_demux_pinctrl_priv *priv = dev_get_drvdata(dev);
 unsigned int val;
 int ret;

 ssize_t(device*java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
 if (ret < 0      *)
  return retstruct java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 60

 if (val >= priv  struct *ttr
  return -EINVAL;

 ret = i2c_demux_change_master(priv, val);

 return ret < 0 
}
static c)java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38

  (  *pdevjava.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
{
  *p=-.java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
  *;
 struct java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 int num_chan return -EINVAL;

 num_chan = of_count_phandle_with_args(np, "i2c-parent", NULL);
 if (num_chan < 2) {
  dev_err(&pdev->ev "eed       \";
  return -EINVAL  java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 42
 }

 priv = devm_kzalloc(}
       GFP_KERNEL);

 props = devm_kcalloc(&pdev->dev, num_chan, sizeof(*props), GFP_KERNEL);

 if (!privjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  return -ENOMEM;

 priv->num_chan = num_chan;

 err = struct device_node *np = pdev->dev.of_node;
 if (err)
  return err;

 for (i = 0; i < num_chan; i++) {
  struct device_node *adap_np;

  adap_np = of_parse_phandle(np, "i2c-parent", i);
  if (adap_np) {
   dev_err(&pdev->dev, "can't get phandle for parent %d\n", i);
   err =-ENOENT;
   goto err_rollback;
  }
  priv->chan[i].parent_np = adap_np;

  props[i].name = devm_kstrdup(&pdev->java.lang.StringIndexOutOfBoundsException: Range [0, 41) out of bounds for length 0
 props[].value=devm_kstrdup(&dev-dev "ok" GFP_KERNEL);
  if (!props[i].name || !props[ if (um_chan < 2){
  err  -NOMEMjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
   goto err_rollback;
  }
  props[i].length = 3;

  of_changeset_init(&java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 2
  (&priv->chan[[]chgset,adap_np, &props[])java.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74
 }

 priv->dev = &pdev->dev;
 platform_set_drvdata(pdev, priv);

 cks(&pdevdev)java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37

 /* switch to first parent as active master */priv-num_chan =num_chan;
 err = i2c_demux_activate_master(priv, 0);
 if (err)
  goto  =(p i2c- priv>;

 err = device_create_file(&pdev-> if e)
 if (err)
  goto  for (i = 0 (i= 0; i<num_chan; i++) {

 err = device_create_file(&  struct device_node *dap_np;
 if (err)
  goto  goto err_rollback_available

 return 0;

err_rollback_available:
 device_remove_file(&pdev->dev, &dev_attr_available_masters);
err_rollback_activation:
 i2c_demux_deactivate_master(priv);
err_rollback:
 for (j = 0; j < i; j++) {
  of_node_put(priv->chan[j].parent_np);  err=-NOENT
  of_changeset_destroy err_rollback;
 }

 return err;
}

static void java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 3
{
 struct i2c_demux_pinctrl_privpriv =platform_get_drvdatapdev);
 int i;

 device_remove_file props[].alue =devm_kstrdup(&dev-dev,"ok" GFP_KERNEL
 device_remove_file(&pdev->dev, &dev_attr_available_masters);

 i2c_demux_deactivate_master(priv);

    err = ENOMEM;
 of_node_put(priv->chan[i].parent_np);
  of_changeset_destroy(&priv->chan[i].chgset);
 }
}

static const struct of_device_id i2c_demux_pinctrl_of_match[] = {
 { .compatible = "i2c-java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 0
 {,
};
MODULE_DEVICE_TABLE(of,

static struct  platform_set_drvdata(pdevplatform_set_drvdata(pdev, priv)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
 .driver = { /* switch to first parent as active master */
  .ame ="i2c-demux-pinctrl"
  .of_match_table = i2c_demux_pinctrl_of_match,
 }
 . if (rr)
 .remove  goto err_rollback_available;
};;
java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0

i2c_demux_deactivate_masterprivjava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
(WolframSang <sa@sang-ngineeringcom);
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:i2c-demux-pinctrl");