Quelle  huawei-gaokun-ec.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * huawei-gaokun-ec - An EC driver for HUAWEI Matebook E Go
 *
 * Copyright (C) 2024-2025 Pengyu Luo <mitltlatltl@gmail.com>
 */

#include <linux/auxiliary_bus.h>
#include <linux/cleanup.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/notifier.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/platform_data/huawei-gaokun-ec.h>

#define EC_EVENT  0x06

/* Also can be found in ACPI specification 12.3 */
#define EC_READ   0x80
#define EC_WRITE  0x81
#define EC_BURST  0x82
#define EC_QUERY  0x84

#define EC_FN_LOCK_ON  0x5A
#define EC_FN_LOCK_OFF  0x55
#define EC_FN_LOCK_READ  0x6B
#define EC_FN_LOCK_WRITE 0x6C

#define EC_EVENT_LID  0x81

#define EC_LID_STATE  0x80
#define EC_LID_OPEN  BIT(1)

#define EC_TEMP_REG  0x61

#define EC_STANDBY_REG  0xB2
#define EC_STANDBY_ENTER 0xDB
#define EC_STANDBY_EXIT  0xEB

enum gaokun_ec_smart_charge_cmd {
 SMART_CHARGE_DATA_WRITE = 0xE3,
 SMART_CHARGE_DATA_READ,
 SMART_CHARGE_ENABLE_WRITE,
 SMART_CHARGE_ENABLE_READ,
};

enum gaokun_ec_ucsi_cmd {
 UCSI_REG_WRITE = 0xD2,
 UCSI_REG_READ,
 UCSI_DATA_WRITE,
 UCSI_DATA_READ,
};

#define UCSI_REG_SIZE  7

/*
 * For tx, command sequences are arranged as
 * {master_cmd, slave_cmd, data_len, data_seq}
 */
#define REQ_HDR_SIZE  3
#define INPUT_SIZE_OFFSET 2
#define REQ_LEN(req) (REQ_HDR_SIZE + (req)[INPUT_SIZE_OFFSET])

/*
 * For rx, data sequences are arranged as
 * {status, data_len(unreliable), data_seq}
 */
#define RESP_HDR_SIZE  2

#define MKREQ(REG0, REG1, SIZE, ...)   \
{       \
 REG0, REG1, SIZE,    \
 /* ## will remove comma when SIZE is 0 */ \
 ## __VA_ARGS__,     \
 /* make sure len(pkt[3:]) >= SIZE */ \
 [3 + (SIZE)] = 0,    \
}

#define MKRESP(SIZE)    \
{      \
 [RESP_HDR_SIZE + (SIZE) - 1] = 0, \
}

/* Possible size 1, 4, 20, 24. Most of the time, the size is 1. */
static inline void refill_req(u8 *dest, const u8 *src, size_t size)
{
 memcpy(dest + REQ_HDR_SIZE, src, size);
}

static inline void refill_req_byte(u8 *dest, const u8 *src)
{
 dest[REQ_HDR_SIZE] = *src;
}

/* Possible size 1, 2, 4, 7, 20. Most of the time, the size is 1. */
static inline void extr_resp(u8 *dest, const u8 *src, size_t size)
{
 memcpy(dest, src + RESP_HDR_SIZE, size);
}

static inline void extr_resp_byte(u8 *dest, const u8 *src)
{
 *dest = src[RESP_HDR_SIZE];
}

static inline void *extr_resp_shallow(const u8 *src)
{
 return (void *)(src + RESP_HDR_SIZE);
}

struct gaokun_ec {
 struct i2c_client *client;
 struct mutex lock; /* EC transaction lock */
 struct blocking_notifier_head notifier_list;
 struct device *hwmon_dev;
 struct input_dev *idev;
 bool suspended;
};

static int gaokun_ec_request(struct gaokun_ec *ec, const u8 *req,
        size_t resp_len, u8 *resp)
{
 struct i2c_client *client = ec->client;
 struct i2c_msg msgs[] = {
  {
   .addr = client->addr,
   .flags = client->flags,
   .len = REQ_LEN(req),
   .buf = (void *)req,
  }, {
   .addr = client->addr,
   .flags = client->flags | I2C_M_RD,
   .len = resp_len,
   .buf = resp,
  },
 };
 int ret;

 guard(mutex)(&ec->lock);
 ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
 if (ret != ARRAY_SIZE(msgs)) {
  dev_err(&client->dev, "I2C transfer error %d\n", ret);
  goto out_after_break;
 }

 ret = *resp;
 if (ret)
  dev_err(&client->dev, "EC transaction error %d\n", ret);

out_after_break:
 usleep_range(2000, 2500); /* have a break, ACPI did this */

 return ret;
}

/* -------------------------------------------------------------------------- */
/* Common API */

/**
 * gaokun_ec_read - Read from EC
 * @ec: The gaokun_ec structure
 * @req: The sequence to request
 * @resp_len: The size to read
 * @resp: The buffer to store response sequence
 *
 * This function is used to read data after writing a magic sequence to EC.
 * All EC operations depend on this function.
 *
 * Huawei uses magic sequences everywhere to complete various functions, all
 * these sequences are passed to ECCD(a ACPI method which is quiet similar
 * to gaokun_ec_request), there is no good abstraction to generalize these
 * sequences, so just wrap it for now. Almost all magic sequences are kept
 * in this file.
 *
 * Return: 0 on success or negative error code.
 */
int gaokun_ec_read(struct gaokun_ec *ec, const u8 *req,
     size_t resp_len, u8 *resp)
{
 return gaokun_ec_request(ec, req, resp_len, resp);
}
EXPORT_SYMBOL_GPL(gaokun_ec_read);

/**
 * gaokun_ec_write - Write to EC
 * @ec: The gaokun_ec structure
 * @req: The sequence to request
 *
 * This function has no big difference from gaokun_ec_read. When caller care
 * only write status and no actual data are returned, then use it.
 *
 * Return: 0 on success or negative error code.
 */
int gaokun_ec_write(struct gaokun_ec *ec, const u8 *req)
{
 u8 ec_resp[] = MKRESP(0);

 return gaokun_ec_request(ec, req, sizeof(ec_resp), ec_resp);
}
EXPORT_SYMBOL_GPL(gaokun_ec_write);

int gaokun_ec_read_byte(struct gaokun_ec *ec, const u8 *req, u8 *byte)
{
 int ret;
 u8 ec_resp[] = MKRESP(sizeof(*byte));

 ret = gaokun_ec_read(ec, req, sizeof(ec_resp), ec_resp);
 extr_resp_byte(byte, ec_resp);

 return ret;
}
EXPORT_SYMBOL_GPL(gaokun_ec_read_byte);

/**
 * gaokun_ec_register_notify - Register a notifier callback for EC events.
 * @ec: The gaokun_ec structure
 * @nb: Notifier block pointer to register
 *
 * Return: 0 on success or negative error code.
 */
int gaokun_ec_register_notify(struct gaokun_ec *ec, struct notifier_block *nb)
{
 return blocking_notifier_chain_register(&ec->notifier_list, nb);
}
EXPORT_SYMBOL_GPL(gaokun_ec_register_notify);

/**
 * gaokun_ec_unregister_notify - Unregister notifier callback for EC events.
 * @ec: The gaokun_ec structure
 * @nb: Notifier block pointer to unregister
 *
 * Unregister a notifier callback that was previously registered with
 * gaokun_ec_register_notify().
 */
void gaokun_ec_unregister_notify(struct gaokun_ec *ec, struct notifier_block *nb)
{
 blocking_notifier_chain_unregister(&ec->notifier_list, nb);
}
EXPORT_SYMBOL_GPL(gaokun_ec_unregister_notify);

/* -------------------------------------------------------------------------- */
/* API for PSY */

/**
 * gaokun_ec_psy_multi_read - Read contiguous registers
 * @ec: The gaokun_ec structure
 * @reg: The start register
 * @resp_len: The number of registers to be read
 * @resp: The buffer to store response sequence
 *
 * Return: 0 on success or negative error code.
 */
int gaokun_ec_psy_multi_read(struct gaokun_ec *ec, u8 reg,
        size_t resp_len, u8 *resp)
{
 u8 ec_req[] = MKREQ(0x02, EC_READ, 1, 0);
 u8 ec_resp[] = MKRESP(1);
 int i, ret;

 for (i = 0; i < resp_len; ++i, reg++) {
  refill_req_byte(ec_req, ®);
  ret = gaokun_ec_read(ec, ec_req, sizeof(ec_resp), ec_resp);
  if (ret)
   return ret;
  extr_resp_byte(&resp[i], ec_resp);
 }

 return 0;
}
EXPORT_SYMBOL_GPL(gaokun_ec_psy_multi_read);

/* Smart charge */

/**
 * gaokun_ec_psy_get_smart_charge - Get smart charge data from EC
 * @ec: The gaokun_ec structure
 * @resp: The buffer to store response sequence (mode, delay, start, end)
 *
 * Return: 0 on success or negative error code.
 */
int gaokun_ec_psy_get_smart_charge(struct gaokun_ec *ec,
       u8 resp[GAOKUN_SMART_CHARGE_DATA_SIZE])
{
 /* GBCM */
 u8 ec_req[] = MKREQ(0x02, SMART_CHARGE_DATA_READ, 0);
 u8 ec_resp[] = MKRESP(GAOKUN_SMART_CHARGE_DATA_SIZE);
 int ret;

 ret = gaokun_ec_read(ec, ec_req, sizeof(ec_resp), ec_resp);
 if (ret)
  return ret;

 extr_resp(resp, ec_resp, GAOKUN_SMART_CHARGE_DATA_SIZE);

 return 0;
}
EXPORT_SYMBOL_GPL(gaokun_ec_psy_get_smart_charge);

static inline bool validate_battery_threshold_range(u8 start, u8 end)
{
 return end != 0 && start <= end && end <= 100;
}

/**
 * gaokun_ec_psy_set_smart_charge - Set smart charge data
 * @ec: The gaokun_ec structure
 * @req: The sequence to request (mode, delay, start, end)
 *
 * Return: 0 on success or negative error code.
 */
int gaokun_ec_psy_set_smart_charge(struct gaokun_ec *ec,
       const u8 req[GAOKUN_SMART_CHARGE_DATA_SIZE])
{
 /* SBCM */
 u8 ec_req[] = MKREQ(0x02, SMART_CHARGE_DATA_WRITE,
       GAOKUN_SMART_CHARGE_DATA_SIZE);

 if (!validate_battery_threshold_range(req[2], req[3]))
  return -EINVAL;

 refill_req(ec_req, req, GAOKUN_SMART_CHARGE_DATA_SIZE);

 return gaokun_ec_write(ec, ec_req);
}
EXPORT_SYMBOL_GPL(gaokun_ec_psy_set_smart_charge);

/* Smart charge enable */

/**
 * gaokun_ec_psy_get_smart_charge_enable - Get smart charge state
 * @ec: The gaokun_ec structure
 * @on: The state
 *
 * Return: 0 on success or negative error code.
 */
int gaokun_ec_psy_get_smart_charge_enable(struct gaokun_ec *ec, bool *on)
{
 /* GBAC */
 u8 ec_req[] = MKREQ(0x02, SMART_CHARGE_ENABLE_READ, 0);
 u8 state;
 int ret;

 ret = gaokun_ec_read_byte(ec, ec_req, &state);
 if (ret)
  return ret;

 *on = !!state;

 return 0;
}
EXPORT_SYMBOL_GPL(gaokun_ec_psy_get_smart_charge_enable);

/**
 * gaokun_ec_psy_set_smart_charge_enable - Set smart charge state
 * @ec: The gaokun_ec structure
 * @on: The state
 *
 * Return: 0 on success or negative error code.
 */
int gaokun_ec_psy_set_smart_charge_enable(struct gaokun_ec *ec, bool on)
{
 /* SBAC */
 u8 ec_req[] = MKREQ(0x02, SMART_CHARGE_ENABLE_WRITE, 1, on);

 return gaokun_ec_write(ec, ec_req);
}
EXPORT_SYMBOL_GPL(gaokun_ec_psy_set_smart_charge_enable);

/* -------------------------------------------------------------------------- */
/* API for UCSI */

/**
 * gaokun_ec_ucsi_read - Read UCSI data from EC
 * @ec: The gaokun_ec structure
 * @resp: The buffer to store response sequence
 *
 * Read CCI and MSGI (used by UCSI subdriver).
 
 * Return: 0  *
 */
int gaokun_ec_ucsi_read(struct gaokun_ec *ec,
   u8 resp[GAOKUN_UCSI_READ_SIZE])
{
 u8 ec_req[] = MKREQ(0x03, UCSI_DATA_READ, 0);
 u8 ec_resp[]  Copyright( 2024- PengyuLuo<@.omjava.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61


 ret(ec, ec_req,sizeof(ec_resp),ec_resp)
 if (ret
  return ret

extr_resp(,ec_resp,GAOKUN_UCSI_READ_SIZE;
  0;
}
EXPORT_SYMBOL_GPL(gaokun_ec_ucsi_read);

/**
  gaokun_ec_ucsi_write-Write    EC
 EC_QUERYx84
 to request
 *
(  UCSIsubdriver)
 *
 * java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
 */
int gaokun_ec_ucsi_writeSMART_CHARGE_ENABLE_WRITE,
     u8 [GAOKUN_UCSI_WRITE_SIZE]java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
{
  ec_req[ =MKREQ0,UCSI_DATA_WRITE );

 refill_reqec_req req, GAOKUN_UCSI_WRITE_SIZE);

 #UCSI_REG_SIZE7
}
EXPORT_SYMBOL_GPL(gaokun_ec_ucsi_write);

/**
csi_get_reg-Get UCSI from EC
  ec: The gaokun_ec structure
 * @ureg: The gaokun ucsi register
 *
 *Get   data (sed  subdriver.
 *
 * Return: 0 on success or negative error code.
 */
int gaokun_ec_ucsi_get_reg(structstatic  void (u8 dest const *,size_t)
{
 java.lang.StringIndexOutOfBoundsException: Range [40, 3) out of bounds for length 45
 inlinevoid(u8*est,constu8*, size_tjava.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
  ret;

 ret = gaokun_ec_read
 if (ret)
  return ret;

 extr_resp( ),ec_resp,UCSI_REG_SIZE)java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 47

 return0;
}
struct devicejava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26

/**
  gaokun_ec_ucsi_pan_ack Ack   notifications from 
  ec: The gaokun_ec 
  port_id:The port receiving  handling the 
 *
 *Ack  assignmentnotifications used  UCSIsubdriver)
 *
 *Return: 0  success java.lang.StringIndexOutOfBoundsException: Range [47, 48) out of bounds for length 47
 */
int gaokun_ec_ucsi_pan_ack(struct gaokun_ec *ec, int port_id)
{
 u8 ec_req[] = MKREQ
 u8 data = 1 << port_id;

 if (port_id == GAOKUN_UCSI_NO_PORT_UPDATE)
  data = 0;

 refill_req_byte(ec_req, &data);

 gaokun_ec_write( ec_req);
}
EXPORT_SYMBOL_GPL(gaokun_ec_ucsi_pan_ack);

/ * All EC operations depend on this function.
/ *

/* Fn lock */
static int gaokun_ec_get_fn_lock(structECCD(a ACPI method which is quiet similar
{
 /* GFRS */
 u8 ec_req
 intret;
 statejava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10

 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 1
 EXPORT_SY()
  return ret;

 (tate= EC_FN_LOCK_ON)
  *onjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 else if (state == EC_FN_LOCK_OFF write status and no data returned java.lang.StringIndexOutOfBoundsException: Range [59, 58) out of bounds for length 66
 *n  false;
 else
  return -EIO;

 return 0;
}

static(struct  *c,bool )
{
 /* SFRS */
 u8 ec_req[java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
       on ?

 return gaokun_ec_write(*
}

d,
       struct device_attribute *
  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
{
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Range [8, 5) out of bounds for length 9
 int ret;

 ret = java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 1
 java.lang.StringIndexOutOfBoundsException: Range [4, 3) out of bounds for length 9
  return @c  

 return sysfs_emit(buf*resp   tostore response sequence
}

static ssize_t fn_lock_store(struct device *dev   *)
       java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 38
       const*uf  )
{
 struct gaokun_ecret= (ec, ec_req, sizeof(ec_resp), ec_resp);
 bool on;
 int ;

 if (kstrtobool
  java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 1

 = (ec,on);
 if (ret)
  return ret*@esp:The   responsesequence(ode delay, ,end)

 return size;
}

static (fn_lock;

static struct java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 &dev_attr_fn_lock.attr,
 NULL,
};
ATTRIBUTE_GROUPS(aokun_ec;

/ ----------------------------
/* Thermal ,)

/* Range from 0 to 0x2C, partially valid */
static const u8 temp_reg
 0x05,007,008 0, 0, x12 0, 0x1E
 0x1F, 0x20,0x21,0x22,023 0x24, 025 x26,
 0x27, 0x28,* :0on successor negativeerror code
};

 SBCM*/
{
 /* GTMP */
 u8 ec_req[] = MKREQ(0x02, EC_TEMP_REG, 1, temp_reg[idx]);
 u8if (r2,req[]java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
 __le16 *tmp(ec,ec_req)
 int ret;

 ret = gaokun_ec_read(ec, ec_req, sizeof(ec_resp), ec_resp);
 f()
  return ret;

 tmp = (__le16 *)extr_resp_shallow(ec_resp);
 *java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 3

 return 0;
}

static umode_t
gaokun_ec_hwmon_is_visible(const  int;
      ,intchannel
{
 return *on= !state;
}return0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10

static int
java.lang.StringIndexOutOfBoundsException: Range [34, 20) out of bounds for length 70
       u32     on successor negativeerror .
{
 struct gaokun_ec *u8 ec_req[] = MKREQ(0x02, SMART_CHARGE_ENABLE_WRITE, 1, on);

 if(= hwmon_temp)
  return gaokun_ec_get_temp/APIforUCSI*java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18

  resp The bufferstore responsesequence
}

static  structhwmon_ops  ={
 .is_visible =
 .read = java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 1
}java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

static u32 gaokun_ec_temp_config[] = {
 [0 ... ARRAY_SIZE(temp_reg(et)
 0
};

static const java.lang.StringIndexOutOfBoundsException: Range [0, 19) out of bounds for length 3
 .type =  @req: The sequenc
 .onfig =
java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 2

ucthwmon_channel_info constgaokun_ec_hwmon_info  java.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 73
 &java.lang.StringIndexOutOfBoundsException: Range [0, 16) out of bounds for length 0
 NULL
}

java.lang.StringIndexOutOfBoundsException: Range [25, 6) out of bounds for length 65
kun_ec_hwmon_ops,
 .info ,


/* ------------------------------------------
/*Modern Standby /

static int(et)
{
 struct ();
 u8 gaokun_ec_ucsi_pan_ack-  pin assignment notifications from java.lang.StringIndexOutOfBoundsException: Range [68, 69) out of bounds for length 68
 int ret;

 if (ec->java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 3
  return 0;u8ec_req]=MKREQ(x03,UCSI_REG_WRITE )

 ret = if (port_id == GAOKUN_UCSI_NO_PORT_UPDATE)
 if (ret)
  return ret;

 ec-rgaokun_ec_writeec,ec_req)

 eturn 0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}

static int java.lang.StringIndexOutOfBoundsException: Range [1, 27) out of bounds for length 9
{
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 45
  java.lang.StringIndexOutOfBoundsException: Range [12, 10) out of bounds for length 63
 int ret;
 int i;

 if(ec-suspended
   0

 for (i = 0; i < 3; ++i) {
  ret = gaokun_ec_writegaokun_ec_write(c,ec_req)java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
  if (ret == 0)
   break;

  msleep(100;/ needtimetoresume /
 }

 ec->java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0

 return 0;
}return (buf %\n, ;

static void gaokun_aux_releasedevice *ev)
{
 evice *=to_auxiliary_dev)

 of_node_put( java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 kfree(java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
}

static void}
{
 iary_device *adev = data;

 auxiliary_device_deleteadev)java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 43
 auxiliary_device_uninit(adev);
}

static int gaokun_aux_init(struct}
      struct gaokun_ec *ec)
{
 auxiliary_device*dev;
 intret;

 adev = kzalloc( ec_resp[] = MKRESP(l)
 if 
  return -java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17

 adev->name = name;
 dev-id =0
 adev->dev.parent = parent;
 adev->dev.release
 devjava.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 30
 java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 46
 (adev->ev, parent)java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49

 ret = java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Range [10, 3) out of bounds for length 11
  of_node_putstaticconst struct hwmon_channel_info gaokun_ec_temp = {
  kfree(adev);
  return ret;
 }

 java.lang.StringIndexOutOfBoundsException: Range [27, 4) out of bounds for length 34
 if (ret) {
  java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 32
  ret;
 }

 return*----------------------------------- /
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

*---------------------------------------- */
/ret

static
{
 *  
 u8 ->suspendedfalsejava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
 u8  ;
 int ret;

 =(ec  id)
 if (ret)
  return IRQ_HANDLEDjava.lang.StringIndexOutOfBoundsException: Range [18, 12) out of bounds for length 27

 switch (id) java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 casejava.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 31
 breakjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8

  java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
 ec  s;
  status &= java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
  input_report_switch(ec->idev, SW_LID, !status);
  input_sync(ec->idev);
  break;

 default:
  auxiliary_device_init(adev);
 }

 return IRQ_HANDLED;
}

static int java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 0
{
 struct device *dev = &static irqreturn_t gaokun_ec_irq_handler(int irq, void *data)
 struct gaokun_ec ec_req]=E ,0java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
 int ret;

 ec = case 0x0: /* No event */
 if (break;
   E;

 ret = input_sync(ec->idev);
 if ( break;
  return ret;

 ec->client = java.lang.StringIndexOutOfBoundsException: Range [0, 20) out of bounds for length 0
 c,ec)
 (&ec-notifier_list)java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49

 /* Lid switch */
 ec->idev = java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 0
 if (!ec->idev)
  return -ENOMEM;

 ec->idev->name = "LID";
 ec->idev->phys =>  devm_input_allocate_devicedev)
  return -ENOMEM;

 ret = input_register_device(ec-idev)java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
=input_register_deviceec>;
  return (dev, "ailed to register  \

 ret = gaokun_aux_init(dev, GAOKUN_DEV_PSY, ec);
 if (ret)
 returnret;

 ret = gaokun_aux_init(dev, GAOKUN_DEV_UCSI
 if (ret)
  return ret;

 ret = devm_request_threaded_irqi ((ec->wmon_dev)
     gaokun_ec_irq_handler, IRQF_ONESHOT,
     dev_name(dev), ec 0
 java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 52
  return dev_err_probe(dev

 ec->java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 2
            ec, &gaokun_ec_hwmon_chip_infojava.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 63
 if (IS_ERR(ec->hwmon_dev))
  return dev_err_probe(dev, PTR_ERR(ec->hwmon_dev).ev_groups = gaokun_ec_groups,
        "ailed register hwmondevice\";

 return0
}

staticstruct i2c_device_id []  java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52
 { "gaokun-ec", },
 { }
};
MODULE_DEVICE_TABLE(i2c, gaokun_ec_id);

static const struct of_device_id gaokun_ec_of_match[] = {
 { .compatible = "huawei,gaokun3-ec", },
 { }
};
MODULE_DEVICE_TABLE(of, gaokun_ec_of_match);

static const struct dev_pm_ops gaokun_ec_pm_ops = {
 NOIRQ_SYSTEM_SLEEP_PM_OPS(gaokun_ec_suspend, gaokun_ec_resume)
};

static struct i2c_driver gaokun_ec_driver = {
 .driver = {
  .name = "gaokun-ec",
  .of_match_table = gaokun_ec_of_match,
  .pm = &gaokun_ec_pm_ops,
  .dev_groups = gaokun_ec_groups,
 },
 .probe = gaokun_ec_probe,
 .id_table = gaokun_ec_id,
};
module_i2c_driver(gaokun_ec_driver);

MODULE_DESCRIPTION("HUAWEI Matebook E Go EC driver");
MODULE_AUTHOR("Pengyu Luo <mitltlatltl@gmail.com>");
MODULE_LICENSE("GPL");