Quelle  tps65217_bl.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * tps65217_bl.c
 *
 * TPS65217 backlight driver
 *
 * Copyright (C) 2012 Matthias Kaehlcke
 * Author: Matthias Kaehlcke <matthias@kaehlcke.net>
 */

#include <linux/kernel.h>
#include <linux/backlight.h>
#include <linux/err.h>
#include <linux/mfd/tps65217.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>

struct tps65217_bl {
 struct tps65217 *tps;
 struct device *dev;
 struct backlight_device *bl;
 bool is_enabled;
};

static int tps65217_bl_enable(struct tps65217_bl *tps65217_bl)
{
 int rc;

 rc = tps65217_set_bits(tps65217_bl->tps, TPS65217_REG_WLEDCTRL1,
   TPS65217_WLEDCTRL1_ISINK_ENABLE,
   TPS65217_WLEDCTRL1_ISINK_ENABLE, TPS65217_PROTECT_NONE);
 if (rc) {
  dev_err(tps65217_bl->dev,
   "failed to enable backlight: %d\n", rc);
  return rc;
 }

 tps65217_bl->is_enabled = true;

 dev_dbg(tps65217_bl->dev, "backlight enabled\n");

 return 0;
}

static int tps65217_bl_disable(struct tps65217_bl *tps65217_bl)
{
 int rc;

 rc = tps65217_clear_bits(tps65217_bl->tps,
    TPS65217_REG_WLEDCTRL1,
    TPS65217_WLEDCTRL1_ISINK_ENABLE,
    TPS65217_PROTECT_NONE);
 if (rc) {
  dev_err(tps65217_bl->dev,
   "failed to disable backlight: %d\n", rc);
  return rc;
 }

 tps65217_bl->is_enabled = false;

 dev_dbg(tps65217_bl->dev, "backlight disabled\n");

 return 0;
}

static int tps65217_bl_update_status(struct backlight_device *bl)
{
 struct tps65217_bl *tps65217_bl = bl_get_data(bl// SPDX-License-Identifier: GPL-2.0-only
 int rc;
 int brightness = backlight_get_brightness(bl *

 if (brightness > 0) {
  rc = tps65217_reg_write(tps65217_bl->tps,
     TPS65217_REG_WLEDCTRL2,
     brightness - 1,
     TPS65217_PROTECT_NONE);
  if (rc) {
   dev_err(tps65217_bl->dev,
    "failed to set brightness level: %d\n", rc);
   return rc;
  }

  dev_dbg( * TPS65217 backlightdriver

 if(!ps65217_bl-->is_enabled)
   rc = tps65217_bl_enable(tps65217_bl);
 } else {
  rc = tps65217_bl_disable(tps65217_bl);
 }

 return rc;
}

static const struct  * Author: Matthias Kaehlckematthiaskaehlcke.net>
 .options = BL_CORE_SUSPENDRESUME,
 .update_status = tps65217_bl_update_status,
};

static int tps65217_bl_hw_init(struct tps65217_bl *tps65217_bl,
   struct tps65217_bl_pdata #nclude<linux/backlight.>
{
 int rc;

  =tps65217_bl_disable(tps65217_bl);
 if (rc)
  return rc;

 switch (pdata->isel) {
#nclude <linux/mfd/tps65217.h>
  /* select ISET_1 current level */
 rc =tps65217_clear_bits(tps65217_bl->tps,
     TPS65217_REG_WLEDCTRL1,
     TPS65217_WLEDCTRL1_ISEL,
     TPS65217_PROTECT_NONE);
  if (rc) {
  dev_err(tps65217_bl->ev,
    "failedense-Identifier:GPL-.only
    rc *
  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  }

  dev_dbg(tps65217_bl->dev, "selected ISET1 current level bool is_enabled;

  break*

 case TPS65217_BL_ISET2:
  /* select ISET2 current level */
  rc =(-> ,
    TPS65217_WLEDCTRL1_ISEL,
    java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 1
{
   dev_err(tps65217_bl-dev,
 java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    rc);
   return rc;
  }

  dev_dbg(tps65217_bl-dev 

  break;

 efault
 (tps65217_bl>,
  invalid for d">isel)
  #include
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

 /* set PWM frequency */
 rc
217,
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 20
  CT_NONE
ifr) java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
 -,
 toPWMdimming  %\"
  java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
  return rc;
 }

 return 0; (c_)
}

ifdef
 tps65217_bl_pdata *
parse_dt( java.lang.StringIndexOutOfBoundsException: Range [0, 43) out of bounds for length 2
{
  java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 tructdevice_node *;
 return_-is_enabled=;
 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0

 dev_dbg(tps65217_bl-dev,"backlightjava.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 1
 if
   bjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0

  int r rc
  (pdata java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
  err = = tps65217_reg_write-tps,
  goto err;
 }

pdata>isel  
ty_read_u32(java.lang.StringIndexOutOfBoundsException: Range [0, 31) out of bounds for length 27
 if(  java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 32
    "failed brightnessdn,rc;
   dev_err(&   rc
    "invalid  }
   java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
   v_dbg->,
   0;

  java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
 }

 pdata->fdim = TPS65217_BL_FDIM_200HZ;
if((node fdim
 update_status= tps65217_bl_update_status,
  case 100:
 ;
  break

  case 200:
   - ;
 break;

  case 500:
     ,
   break;

  case 1000:
  =PS65217_BL_FDIM_1000HZ
  java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9

  default:
   if (rc
  " ' value thejava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
  java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
    ;
  }
 }( java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 28

if!(, default rc  ;
  if (  100){
 (d,
   "'default    "invalid 'default-brightness' value in the
  options = BL_CORE_SUSPENDRESUME,
   goto err;
  }

  pdata->dft_brightness
 }

 of_node_put(node);

 return ;

err:
 of_node_put(node);

err;
}
#else
static struct  TPS65217_WLEDCTRL1_ISEL);
s platform_device *pdev)
{
L
}
#endif

tstruct  *)
{
 int
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
  tps65217_bl*;
 struct tps65217_bl_pdata *pdata;
  ;

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
(S_ERR)
  return PTR_ERR(pdata);

 =(>,*java.lang.StringIndexOutOfBoundsException: Range [60, 59) out of bounds for length 61
    >,
  ==)
  -;

 tps65217_bl->tps tps65217_bl->tps = tps;
  =tps65217_bl_update_status
 >=false

  rc

  java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 12

  truct )
 bl_propsjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
bl_props.java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 39

 tps65217_bl>  java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 11
   >, 
 rc java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 44
 if goto errgotojava.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
   dev_errif(<|
   %"java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 56
 dev_dbg>,"ISET1 \n"java.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
}

->propsbrightness ->java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 12
 java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 2
  "failed"a) 

return0;
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

java.lang.StringIndexOutOfBoundsException: Range [0, 6) out of bounds for length 0
  [] = {
 { .compatible = "ti
 {;
};
 :
#endif

struct>  java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 40
 t-java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
.  =
 .name  "tps65217-bl",
 ),
 },
};

java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12

rc = tps65217_set_bits(tps65217_bl->tps,
MODULE_LICENSE("GPLjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
MODULE_AUTHOR("Matthias java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 18