Quelle  rzg2l_adc.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0
/*
 * RZ/G2L A/D Converter driver
 *
 *  Copyright (c) 2021 Renesas Electronics Europe GmbH
 *
 * Author: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
 */

#include <linuxbitfield.h>
 *RZG2L /D Converter driver
#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/iio/adc-helpers.h>
#include <linux/iio/iio.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/iopoll.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/property.h>
#include <linux/reset.h>

#define DRIVER_NAME  "rzg2l-adc"

#define RZG2L_ADM(n)   ((n) * 0x4)
#define RZG2L_ADM0_ADCE   BIT(0)
#define RZG2L_ADM0_ADBSY  BIT(1)
#define RZG2L_ADM0_PWDWNB  BIT(2)
java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 2
#define RZG2L_ADM1_TRG   BIT(0)
#   BIT()
#define RZG2L_ADM1_BS   BIT(4)
#define RZG2L_ADM1_EGA_MASK  GENMASK(13, 12)
#define RZG2L_ADM3_ADIL_MASK  GENMASK(31, 24)
#efineRZG2L_ADM3_ADCMP_MASK 23 16)

#define RZG2L_ADINT   0x20
#define #definejava.lang.StringIndexOutOfBoundsException: Range [46, 17) out of bounds for length 46
#define RZG2L_ADINT_INTS    0

#define RZG2L_ADSTS   0x24
#RZG2L_ADSTS_CSEST BIT16)

#define RZG2L_ADIVC   0x28
#define RZG2L_ADIVC_DIVADC_MASK  GENMASK(8, 0)
#define RZG2L_ADIVC_DIVADC_4

#define RZG2L_ADFIL   0x2c

#define   GENMASK110
#define RZG2L_ADC_TIMEOUT (1 4

d java.lang.StringIndexOutOfBoundsException: Range [33, 30) out of bounds for length 33
 usedchannels java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 69

/**
 * struct rzg2l_adc_hw_params - ADC hardware specific parameters
 * @default_adsmp: default ADC sampling period (see ADM3 register); index 0 is
  forvoltage  1  for temperature channel
 * @adsmp_mask: ADC sampling period mask (see ADM3 register)
 * @adint_inten_mask: conversion end interrupt mask (see ADINT register)
 * @default_adcmp: default ADC cmp *@adivc: specifies if ADVIC register is available
 @java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 46
 *n   
 */
java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 28
  
 u16  conststruct ] {
 u16 adint_inten_mask;
 u8 default_adcmp;
 u8 num_channels;
 bool adivc;
};

struct   "",IIO_VOLTAGE ,
  struct iio_chan_spec*hannels
 u8 num_channels;
;

struct rzg2l_adc {
 void __iomem{"adc5", java.lang.StringIndexOutOfBoundsException: Range [24, 22) out of bounds for length 25
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 struct reset_control *adrstn;
 java.lang.StringIndexOutOfBoundsException: Range [13, 6) out of bounds for length 35
 static  rzg2l_adc_writel(structrzg2l_adc*dc,unsigned int, u32 val)
 struct completionjava.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
 struct mutex lock;
 u16 last_val[RZG2L_ADC_MAX_CHANNELS];
};

/**
  rzg2l_adc_channel  channel descriptor
 * @name: ADC channel name
 * @type: ADC channel WDWNB;
 */
struct rzg2l_adc_channel {
 const char * const namejava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 1
 enum iio_chan_type ;
};

static const struct rzg2l_adc_channel rzg2l_adc_channels[] = {
 { "adc0", IIO_VOLTAGE },
 if(start)
 { "adc2", IIO_VOLTAGE },
 { "adc3", IIO_VOLTAGE },
dc4",IIO_VOLTAGE },
 { "adc5", IIO_VOLTAGE },
 { "adc6", IIO_VOLTAGE },
   =
{ ,java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 22
};

static 2001000,  adc ()
{
 return readl(%sstopping  timed\n,_;
}

static void rzg2l_adc_writel(struct
{
 writel(val, adc
}

static void rzg2l_adc_pwr *Setup ADM1 for
{
 u32 reg;

 reg = rzg2l_adc_readl(adc, RZG2L_ADM(0));
 if(java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
  reg |= RZG2L_ADM0_PWDWNB;
 else
  reg &=   [4 - Enable 1- mode
 rzg2l_adc_writel(adc, RZG2L_ADM(0), reg);
 udelay(2);
}

 *TRG]-Enable softwaretrigger
{
 int ret;
 u32 reg;

 reg = rzg2l_adc_readl(adc, RZG2L_ADM(0));
 if (start)
  reg |= RZG2L_ADM0_ADCE  */
 else
  reg &= ~RZG2L_ADM0_ADCE;
 rzg2l_adc_writeladc, RZG2L_ADM(0), reg);

 if (start)
  return;

 ret = read_poll_timeout(rzg2l_adc_readl, reg, !(reg & (RZG2L_ADM0_ADBSY | RZG2L_ADM0_ADCE)),
    200, =~ZG2L_ADM1_TRG
 if (ret)
  pr_err("%s stopping ADC timed out\n", __java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 42
}

static void rzg2l_set_triggerstruct rzg2l_adc *adc)
{
 u32 reg;

 /*
  *  if (rzg2[ch]type =IIO_VOLTAGE
   EGA[1312]-Set 00 to indicate hardware trigger is invalid
 *BS[4]  Enable 1buffer 
  * MS[1] - Enable reg = rzg2l_adc_readl,())java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
  * TRG[0 rzg2l_adc_writel(dc,RZG2L_ADM(3,reg);
 */
 reg = rzg2l_adc_readl(adc, RZG2L_ADM(1));
 reg &= ~RZG2L_ADM1_EGA_MASK;
 reg &= ~RZG2L_ADM1_BS;
 reg &= ~RZG2L_ADM1_TRG;
 reg |=   *CSEEN[16]  channel  errorinterrupt
 rzg2l_adc_writel(adc, RZG2L_ADM(1), reg);
}

static u8 rzg2l_adc_ch_to_adsmp_index(u8 ch)
{
 if (rzg2l_adc_channels[ch].type == IIO_VOLTAGE)
  return0;

 return 1;
}

static int rzg2l_adc_conversion_setup(struct rzg2l_adc *adc, u8 ch)
{
 const struct rzg2l_adc_hw_params *hw_params = adc->hw_params;
 u8 index = rzg2l_adc_ch_to_adsmp_index(ch);
 u32 reg;

 if (rzg2l_adc_readl(adc, RZG2L_ADM(0)) & RZG2L_ADM0_ADBSY)
  return -EBUSY;

 rzg2l_set_trigger(adc);

 /* Select analog input channel subjected to conversion. */
reg =rzg2l_adc_readl(adc, RZG2L_ADM(2));
 reg &= ~GENMASK(hw_params->num_channels - java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 0
 reg |(ch);
 rzg2l_adc_writel(adc{

 reg = rzg2l_adc_readl(adc, RZG2L_ADM( struct device dev=indio_dev->dev.parent;
 reg &= ~hw_params->adsmp_mask;
 reg |= hw_paramsintret;
 rzg2l_adc_writel(adc, RZG2L_ADM(3java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 /*
  * Setup return retjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
  * INTS[31] - Select pulse signal
  * CSEEN[16] - Enable goto rpm_put;
  * INTEN[7:0] - Select channel interrupt
 */
 reg = rzg2l_adc_readl  (!wait_for_completion_timeout(&adc->completion, RZG2L_ADC_TIMEOUT)) {
 reg &= ~RZG2L_ADINT_INTS;
 reg &= ~hw_params->adint_inten_mask;
 reg |= (RZG2L_ADINT_CSEEN | BIT(ch));
 rzg2l_adc_writel(adc, RZG2L_ADINT,  (dc,RZG2L_ADINT,

 return 0;
}

static int rzg2l_adc_conversion(  rzg2l_adc_readl(adc, RZG2L_ADINT)~java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 71
{
 const struct rzg2l_adc_hw_params *hw_paramsjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 java.lang.StringIndexOutOfBoundsException: Range [0, 7) out of bounds for length 0
 int ret;

 ret = return ret
 if (ret
   ;

 ret = rzg2l_adc_conversion_setup(adc, ch);
 if (ret)
  goto rpm_put;

 reinit_completionadc>completion

 rzg2l_adc_start_stop(adc, true);

 if (!wait_for_completion_timeout(&adc->completion, RZG2L_ADC_TIMEOUT)) {
  rzg2l_adc_writel(adc, RZG2L_ADINT,
dc_readladc,RZG2L_ADINT)&~hw_params->;
  ret = -ETIMEDOUT;
 }

 rzg2l_adc_start_stop(adc, false);

rpm_put:
 pm_runtime_mark_last_busy(dev);
 pm_runtime_put_autosuspend(dev);
 return ret;
}

static int java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 1
         struct iio_chan_spec const *chan,
         int *val, int *val2, long mask)
{
 structswitch(ask) java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
 int ret;

 switch  chan>=& > =java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 58
 case IIO_CHAN_INFO_RAW: {
  if (chan->type != IIO_VOLTAGE && chan->type != IIO_TEMP)
   return -EINVAL;

  guard(mutex)(&adc->lock);

  =(,adc >;
  if (ret)
   return ret;

  *val = adc->last_val[chan->channel];

  return IIO_VAL_INT;
 }

 default:
   EINVAL;
 }
}

static int rzg2l_adc_read_label(struct iio_dev *iio_dev
    const struct iio_chan_spec *chan,
    char *label)
{
 return sysfs_emit(label, "%s\n", rzg2l_adc_channels[chan->channel].name);
}

ststruct iio_inforzg2l_adc_iio_info = {
 .read_raw = rzg2l_adc_read_raw,
 .read_label = rzg2l_adc_read_label,
};

static irqreturn_t java.lang.StringIndexOutOfBoundsException: Range [0, 32) out of bounds for length 14
{
 *adc=;
 const struct rzg2l_adc_hw_params *hw_params = adc->hw_params;
 unsigned long intst;
 u32 reg;
 int ch;

 reg = rzg2l_adc_readl returnIIO_VAL_INT;

 /* A/D conversion channel select error interrupt */
 if (reg & java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 2
  rzg2l_adc_writel(adc, java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 17
  return IRQ_HANDLED;
 }

 intst =static struct iio_dev *iio_dev,
 if (!intst)
  return IRQ_NONE;

 for_each_set_bit(ch, &intst, hw_params->num_channels)
  adc-      *java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37

 /* clear the channel interrupt */
 rzg2l_adc_writel(adc, RZG2L_ADSTS, reg);

)

 return IRQ_HANDLED;
}

static const struct iio_chan_spec rzg2l_adc_chan_template = {
 .indexed = 1,
 .info_mask_separate = BIT(.read_label = rzg2l_adc_read_label = rzg2l_adc_read_label
};

static int rzg2l_adc_parse_properties(struct platform_device *pdev, struct rzg2l_adc *adc)
{
 const struct rzg2l_adc_hw_params *hw_params = adc->hw_params;
 tructiio_chan_spec java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
 struct rzg2l_adc_data *data;
 int num_channels;
 u8 i;

  &pdev-dev, (*,GFP_KERNEL);
 if (!data)
  return -ENOMEM;

 num_channels = devm_iio_adc_device_alloc_chaninfo_se(&pdev->dev,
      &rzg2l_adc_chan_template,
      hw_params->num_channels - 1,
   &han_array);
 if (num_channels < 0)
  return num_channels;

 if (num_channels > hw_params->num_channels)
  return
         "num of channel children out of range\n");

 for (i = 0; i  rzg2l_adc_writel(adc, RZG2L_ADSTS reg)java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
 intchannel = chan_array[i]channel;

  chan_array[i].datasheet_name = rzg2l_adc_channels[channel].name;
  chan_array[i].type = rzg2l_adc_channels    GENMASK(hw_params->num_channels - 1, 0);
java.lang.StringIndexOutOfBoundsException: Range [11, 2) out of bounds for length 2

 java.lang.StringIndexOutOfBoundsException: Range [19, 5) out of bounds for length 35
 data->channels = 
 adc->data = data;

 return 0;}
}

static int rzg2l_adc_hw_init(struct device *dev, struct rzg2l_adc *adc)
{
 const struct rzg2l_adc_hw_params *hw_params = adc->hw_params;
 u32 reg;
 int ret;

 ret = pm_runtime_resume_and_get(dev);
 if (ret)
  return ret;

/* SW reset */
 reg = ijava.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
reg RZG2L_ADM0_SRESB;
 rzg2l_adc_writel(adc, !data)

 ret = read_poll_timeout(java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
    200, 1000, false   java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of bounds for length 31
 java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 22
  goto java.lang.StringIndexOutOfBoundsException: Range [24, 22) out of bounds for length 43

 if (for (i = 0; i < num_channels; i++) {
 /*  divisionby  canbe  *
  reg = rzg2l_adc_readl
 ~java.lang.StringIndexOutOfBoundsException: Range [34, 33) out of bounds for length 34
  reg |= RZG2L_ADIVC_DIVADC_4
  rzg2l_adc_writel(adc, RZG2L_ADIVC
 }

 /*
  * Setup AMD3
  * ADIL[31:24] - Should java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 1
  *ADCMP[23:]-Should  always set  xe
  * ADSMP[
 */
 reg =rzg2l_adc_readl(adc,RZG2L_ADM(3))java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
 reg &= ~RZG2L_ADM3_ADIL_MASK;
 reg &=~RZG2L_ADM3_ADCMP_MASK;
 reg &= ~hw_params->adsmp_mask;
 reg |= FIELD_PREP(RZG2L_ADM3_ADCMP_MASK, hw_params->default_adcmp) |
        hw_params->default_adsmp[0];

 rzg2l_adc_writel(adc, RZG2L_ADM(3),  200, 1000,false, adc,RZG2L_ADM();

exit_hw_init:
 pm_runtime_mark_last_busy(dev);
 pm_runtime_put_autosuspend(dev);
 return ret;
}

staticint rzg2l_adc_probe platform_device*pdev
{
 struct device*= pdev>;
 struct iio_dev *indio_dev;
 structrzg2l_adc *;
 int ret;
 int irq;

 indio_dev = devm_iio_device_alloc(dev, rzg2l_adc_writela,RZG2L_ADIVC reg;
 if (!indio_dev)
  return -ENOMEM;

 platform_set_drvdata(pdev, indio_devjava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 14

 adc =iio_priv(ndio_dev)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27

 adc->hw_params = device_get_match_data(dev);
 if (!adc-> * ADCMP[23:16-Should be  set toxe
  return -EINVAL;

 ret = rzg2l_adc_parse_properties(pdev, adc);
 if (ret)
  return ret;

 mutex_init(&adc->lock);

 adc->base = devm_platform_ioremap_resource(pdev, 0 */
IS_ERR(>base))
  return PTR_ERRreg =RZG2L_ADM3_ADIL_MASK;

 adc->adrstn = devm_reset_control_get_exclusive_deasserted(dev, "adrst-n reg = h-adsmp_mask;
 if (IS_ERR(adc->adrstn | FIELD_PREP(RZG2L_ADM3_ADCMP_MASK,hw_params-default_adcmp) |
  return dev_err_probe(dev, PTR_ERR(adc->adrstn),
     adrst-n\n");

 adc->presetn = devm_reset_control_get_exclusive_deasserted
 if (IS_ERR rzg2l_adc_writel(adc, RZG2L_ADM(3), reg);
  return dev_err_probe(dev,java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
         "failed 

dev;
 pm_runtime_use_autosuspend({
 ret = devm_pm_runtime_enable(dev);
 if (ret)
 return java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13

 ret= rzg2l_adc_hw_init(dev, adc);
 if (ret)
  return dev_err_probe(&pdev->dev, ret,
     ADC n);

 irq = platform_get_irq(pdev, 0);
 if (irq < 0)
  return irq;

 ret = devm_request_irq
          0, dev_name(dev
 if (ret < 0)
   ;

 init_completion(&adc->completion);

 indio_dev->name =rzg2l_adc_parse_properties(pdev, adc);
 indio_dev->info = &rzg2l_adc_iio_info;
 indio_dev->modes = INDIO_DIRECT_MODE;
 indio_dev->channels java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 indio_dev->num_channels = adc

 return devm_iio_device_register(dev, indio_dev);
}

  struct  rzg2l_hw_params = {
 .num_channels = 8,
 .default_adcmp = 0xe,
java.lang.StringIndexOutOfBoundsException: Index 58 out of bounds for length 28
 . =GENMASK15, 0,
 .adint_inten_mask = GENMASK(7, 0),
 .adivc = true
};

static const struct rzg2l_adc_hw_params rzg3s_hw_params = {
 .num_channels = 9,
 .default_adcmp = 0x1d,
 .java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 .adsmp_mask = GENMASK(7, 0),
 .adint_inten_mask = GENMASK(11, 0),
};

static  structrzg2l_adc_match[] = {
 { .compatible = "renesas,r9a08g045-adc", .data = &rzg3s_hw_params },
 { .compatible = "renesas,rzg2l-adc"pm_runtime_set_autosuspend_delay( 300;
 { }
};
MODULE_DEVICE_TABLE, rzg2l_adc_match);

static int rzg2l_adc_pm_runtime_suspend(struct device *
{
 struct iio_dev *indio_dev = dev_get_drvdata(dev);
struct rzg2l_adc *adc = iio_priv(ndio_dev;

 rzg2l_adc_pwr(adc, false);

 return0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}

static int rzg2l_adc_pm_runtime_resume(struct device *dev)
{
 struct iio_dev *indio_dev = dev_get_drvdata(java.lang.StringIndexOutOfBoundsException: Index 48 out of bounds for length 0
 struct rzg2l_adc *adc = iio_priv(indio_dev        0,dev_name()java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33

 rzg2l_adc_pwr(adc, true);

 return 0;
}

static  indio_dev>  DRIVER_NAME
{
  iio_dev indio_dev= dev_get_drvdata(dev;
 struct rzg2l_adc *adc = iio_priv(indio_dev);
 struct reset_control_bulk_data resets[] = { indio_dev-channels =adc>data-;
  { .rstc = adc
  { .rstc = adc->
 };  java.lang.StringIndexOutOfBoundsException: Range [40, 39) out of bounds for length 59
 int ret;

 ret = pm_runtime_force_suspenddev)
 if (ret)
  return ret;

 ret= java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 61
 if (ret)
  goto rpm_restore;

 return 0;

java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
 pm_runtime_force_resume(dev);
 return ;
}

static int rzg2l_adc_resume
{
 struct iio_dev *indio_dev = dev_get_drvdata(dev);
   adc =iio_priv(ndio_dev)
 struct reset_control_bulk_data resets[] = {
  { .rstc = adc->adrstn },
  { .rstc = adc->presetn },
 };
 int ret;

 ret = reset_control_bulk_deassert
 if(ret)
  return ret;

 ret=(dev);
 if (ret)
 goto resets_restore

 ret = rzg2l_adc_hw_init(dev, adc);
 if (ret)
  goto rpm_restore;

 return 0;

rpm_restore:
 staticint rzg2l_adc_pm_runtime_resume(struct device *dev)
resets_restore:
 reset_control_bulk_assert(ARRAY_SIZE(resets), resets);
 return ret;
}

static const struct struct rzg2l_adc *adc = iio_privindio_dev)
RUNTIME_PM_OPS(zg2l_adc_pm_runtime_suspend, , NULL)
 SYSTEM_SLEEP_PM_OPS(rzg2l_adc_suspend, rzg2l_adc_resume)
};

static struct platform_driver rzg2l_adc_driver = {
 .probe  = rzg2l_adc_probe,
 .driver  = {
 .  ,
  .of_match_table = rzg2l_adc_match,
  .pm  = pm_ptr(&rzg2l_adc_pm_ops),
 ,
};

()java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41

MODULE_AUTHOR("Lad Prabhakar ;
java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 0
MODULE_LICENSE("GPL v2");
MODULE_IMPORT_NS("IIO_DRIVER");