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linux-hardened/drivers/mfd/wm8350-core.c
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00

770 lines
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/*
* wm8350-core.c -- Device access for Wolfson WM8350
*
* Copyright 2007, 2008 Wolfson Microelectronics PLC.
*
* Author: Liam Girdwood, Mark Brown
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/bug.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/workqueue.h>
#include <linux/mfd/wm8350/core.h>
#include <linux/mfd/wm8350/audio.h>
#include <linux/mfd/wm8350/comparator.h>
#include <linux/mfd/wm8350/gpio.h>
#include <linux/mfd/wm8350/pmic.h>
#include <linux/mfd/wm8350/rtc.h>
#include <linux/mfd/wm8350/supply.h>
#include <linux/mfd/wm8350/wdt.h>
#define WM8350_UNLOCK_KEY 0x0013
#define WM8350_LOCK_KEY 0x0000
#define WM8350_CLOCK_CONTROL_1 0x28
#define WM8350_AIF_TEST 0x74
/* debug */
#define WM8350_BUS_DEBUG 0
#if WM8350_BUS_DEBUG
#define dump(regs, src) do { \
int i_; \
u16 *src_ = src; \
printk(KERN_DEBUG); \
for (i_ = 0; i_ < regs; i_++) \
printk(" 0x%4.4x", *src_++); \
printk("\n"); \
} while (0);
#else
#define dump(bytes, src)
#endif
#define WM8350_LOCK_DEBUG 0
#if WM8350_LOCK_DEBUG
#define ldbg(format, arg...) printk(format, ## arg)
#else
#define ldbg(format, arg...)
#endif
/*
* WM8350 Device IO
*/
static DEFINE_MUTEX(io_mutex);
static DEFINE_MUTEX(reg_lock_mutex);
/* Perform a physical read from the device.
*/
static int wm8350_phys_read(struct wm8350 *wm8350, u8 reg, int num_regs,
u16 *dest)
{
int i, ret;
int bytes = num_regs * 2;
dev_dbg(wm8350->dev, "volatile read\n");
ret = wm8350->read_dev(wm8350, reg, bytes, (char *)dest);
for (i = reg; i < reg + num_regs; i++) {
/* Cache is CPU endian */
dest[i - reg] = be16_to_cpu(dest[i - reg]);
/* Mask out non-readable bits */
dest[i - reg] &= wm8350_reg_io_map[i].readable;
}
dump(num_regs, dest);
return ret;
}
static int wm8350_read(struct wm8350 *wm8350, u8 reg, int num_regs, u16 *dest)
{
int i;
int end = reg + num_regs;
int ret = 0;
int bytes = num_regs * 2;
if (wm8350->read_dev == NULL)
return -ENODEV;
if ((reg + num_regs - 1) > WM8350_MAX_REGISTER) {
dev_err(wm8350->dev, "invalid reg %x\n",
reg + num_regs - 1);
return -EINVAL;
}
dev_dbg(wm8350->dev,
"%s R%d(0x%2.2x) %d regs\n", __func__, reg, reg, num_regs);
#if WM8350_BUS_DEBUG
/* we can _safely_ read any register, but warn if read not supported */
for (i = reg; i < end; i++) {
if (!wm8350_reg_io_map[i].readable)
dev_warn(wm8350->dev,
"reg R%d is not readable\n", i);
}
#endif
/* if any volatile registers are required, then read back all */
for (i = reg; i < end; i++)
if (wm8350_reg_io_map[i].vol)
return wm8350_phys_read(wm8350, reg, num_regs, dest);
/* no volatiles, then cache is good */
dev_dbg(wm8350->dev, "cache read\n");
memcpy(dest, &wm8350->reg_cache[reg], bytes);
dump(num_regs, dest);
return ret;
}
static inline int is_reg_locked(struct wm8350 *wm8350, u8 reg)
{
if (reg == WM8350_SECURITY ||
wm8350->reg_cache[WM8350_SECURITY] == WM8350_UNLOCK_KEY)
return 0;
if ((reg >= WM8350_GPIO_FUNCTION_SELECT_1 &&
reg <= WM8350_GPIO_FUNCTION_SELECT_4) ||
(reg >= WM8350_BATTERY_CHARGER_CONTROL_1 &&
reg <= WM8350_BATTERY_CHARGER_CONTROL_3))
return 1;
return 0;
}
static int wm8350_write(struct wm8350 *wm8350, u8 reg, int num_regs, u16 *src)
{
int i;
int end = reg + num_regs;
int bytes = num_regs * 2;
if (wm8350->write_dev == NULL)
return -ENODEV;
if ((reg + num_regs - 1) > WM8350_MAX_REGISTER) {
dev_err(wm8350->dev, "invalid reg %x\n",
reg + num_regs - 1);
return -EINVAL;
}
/* it's generally not a good idea to write to RO or locked registers */
for (i = reg; i < end; i++) {
if (!wm8350_reg_io_map[i].writable) {
dev_err(wm8350->dev,
"attempted write to read only reg R%d\n", i);
return -EINVAL;
}
if (is_reg_locked(wm8350, i)) {
dev_err(wm8350->dev,
"attempted write to locked reg R%d\n", i);
return -EINVAL;
}
src[i - reg] &= wm8350_reg_io_map[i].writable;
wm8350->reg_cache[i] =
(wm8350->reg_cache[i] & ~wm8350_reg_io_map[i].writable)
| src[i - reg];
src[i - reg] = cpu_to_be16(src[i - reg]);
}
/* Actually write it out */
return wm8350->write_dev(wm8350, reg, bytes, (char *)src);
}
/*
* Safe read, modify, write methods
*/
int wm8350_clear_bits(struct wm8350 *wm8350, u16 reg, u16 mask)
{
u16 data;
int err;
mutex_lock(&io_mutex);
err = wm8350_read(wm8350, reg, 1, &data);
if (err) {
dev_err(wm8350->dev, "read from reg R%d failed\n", reg);
goto out;
}
data &= ~mask;
err = wm8350_write(wm8350, reg, 1, &data);
if (err)
dev_err(wm8350->dev, "write to reg R%d failed\n", reg);
out:
mutex_unlock(&io_mutex);
return err;
}
EXPORT_SYMBOL_GPL(wm8350_clear_bits);
int wm8350_set_bits(struct wm8350 *wm8350, u16 reg, u16 mask)
{
u16 data;
int err;
mutex_lock(&io_mutex);
err = wm8350_read(wm8350, reg, 1, &data);
if (err) {
dev_err(wm8350->dev, "read from reg R%d failed\n", reg);
goto out;
}
data |= mask;
err = wm8350_write(wm8350, reg, 1, &data);
if (err)
dev_err(wm8350->dev, "write to reg R%d failed\n", reg);
out:
mutex_unlock(&io_mutex);
return err;
}
EXPORT_SYMBOL_GPL(wm8350_set_bits);
u16 wm8350_reg_read(struct wm8350 *wm8350, int reg)
{
u16 data;
int err;
mutex_lock(&io_mutex);
err = wm8350_read(wm8350, reg, 1, &data);
if (err)
dev_err(wm8350->dev, "read from reg R%d failed\n", reg);
mutex_unlock(&io_mutex);
return data;
}
EXPORT_SYMBOL_GPL(wm8350_reg_read);
int wm8350_reg_write(struct wm8350 *wm8350, int reg, u16 val)
{
int ret;
u16 data = val;
mutex_lock(&io_mutex);
ret = wm8350_write(wm8350, reg, 1, &data);
if (ret)
dev_err(wm8350->dev, "write to reg R%d failed\n", reg);
mutex_unlock(&io_mutex);
return ret;
}
EXPORT_SYMBOL_GPL(wm8350_reg_write);
int wm8350_block_read(struct wm8350 *wm8350, int start_reg, int regs,
u16 *dest)
{
int err = 0;
mutex_lock(&io_mutex);
err = wm8350_read(wm8350, start_reg, regs, dest);
if (err)
dev_err(wm8350->dev, "block read starting from R%d failed\n",
start_reg);
mutex_unlock(&io_mutex);
return err;
}
EXPORT_SYMBOL_GPL(wm8350_block_read);
int wm8350_block_write(struct wm8350 *wm8350, int start_reg, int regs,
u16 *src)
{
int ret = 0;
mutex_lock(&io_mutex);
ret = wm8350_write(wm8350, start_reg, regs, src);
if (ret)
dev_err(wm8350->dev, "block write starting at R%d failed\n",
start_reg);
mutex_unlock(&io_mutex);
return ret;
}
EXPORT_SYMBOL_GPL(wm8350_block_write);
/**
* wm8350_reg_lock()
*
* The WM8350 has a hardware lock which can be used to prevent writes to
* some registers (generally those which can cause particularly serious
* problems if misused). This function enables that lock.
*/
int wm8350_reg_lock(struct wm8350 *wm8350)
{
u16 key = WM8350_LOCK_KEY;
int ret;
ldbg(__func__);
mutex_lock(&io_mutex);
ret = wm8350_write(wm8350, WM8350_SECURITY, 1, &key);
if (ret)
dev_err(wm8350->dev, "lock failed\n");
mutex_unlock(&io_mutex);
return ret;
}
EXPORT_SYMBOL_GPL(wm8350_reg_lock);
/**
* wm8350_reg_unlock()
*
* The WM8350 has a hardware lock which can be used to prevent writes to
* some registers (generally those which can cause particularly serious
* problems if misused). This function disables that lock so updates
* can be performed. For maximum safety this should be done only when
* required.
*/
int wm8350_reg_unlock(struct wm8350 *wm8350)
{
u16 key = WM8350_UNLOCK_KEY;
int ret;
ldbg(__func__);
mutex_lock(&io_mutex);
ret = wm8350_write(wm8350, WM8350_SECURITY, 1, &key);
if (ret)
dev_err(wm8350->dev, "unlock failed\n");
mutex_unlock(&io_mutex);
return ret;
}
EXPORT_SYMBOL_GPL(wm8350_reg_unlock);
int wm8350_read_auxadc(struct wm8350 *wm8350, int channel, int scale, int vref)
{
u16 reg, result = 0;
if (channel < WM8350_AUXADC_AUX1 || channel > WM8350_AUXADC_TEMP)
return -EINVAL;
if (channel >= WM8350_AUXADC_USB && channel <= WM8350_AUXADC_TEMP
&& (scale != 0 || vref != 0))
return -EINVAL;
mutex_lock(&wm8350->auxadc_mutex);
/* Turn on the ADC */
reg = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_5);
wm8350_reg_write(wm8350, WM8350_POWER_MGMT_5, reg | WM8350_AUXADC_ENA);
if (scale || vref) {
reg = scale << 13;
reg |= vref << 12;
wm8350_reg_write(wm8350, WM8350_AUX1_READBACK + channel, reg);
}
reg = wm8350_reg_read(wm8350, WM8350_DIGITISER_CONTROL_1);
reg |= 1 << channel | WM8350_AUXADC_POLL;
wm8350_reg_write(wm8350, WM8350_DIGITISER_CONTROL_1, reg);
/* We ignore the result of the completion and just check for a
* conversion result, allowing us to soldier on if the IRQ
* infrastructure is not set up for the chip. */
wait_for_completion_timeout(&wm8350->auxadc_done, msecs_to_jiffies(5));
reg = wm8350_reg_read(wm8350, WM8350_DIGITISER_CONTROL_1);
if (reg & WM8350_AUXADC_POLL)
dev_err(wm8350->dev, "adc chn %d read timeout\n", channel);
else
result = wm8350_reg_read(wm8350,
WM8350_AUX1_READBACK + channel);
/* Turn off the ADC */
reg = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_5);
wm8350_reg_write(wm8350, WM8350_POWER_MGMT_5,
reg & ~WM8350_AUXADC_ENA);
mutex_unlock(&wm8350->auxadc_mutex);
return result & WM8350_AUXADC_DATA1_MASK;
}
EXPORT_SYMBOL_GPL(wm8350_read_auxadc);
static irqreturn_t wm8350_auxadc_irq(int irq, void *irq_data)
{
struct wm8350 *wm8350 = irq_data;
complete(&wm8350->auxadc_done);
return IRQ_HANDLED;
}
/*
* Cache is always host endian.
*/
static int wm8350_create_cache(struct wm8350 *wm8350, int type, int mode)
{
int i, ret = 0;
u16 value;
const u16 *reg_map;
switch (type) {
case 0:
switch (mode) {
#ifdef CONFIG_MFD_WM8350_CONFIG_MODE_0
case 0:
reg_map = wm8350_mode0_defaults;
break;
#endif
#ifdef CONFIG_MFD_WM8350_CONFIG_MODE_1
case 1:
reg_map = wm8350_mode1_defaults;
break;
#endif
#ifdef CONFIG_MFD_WM8350_CONFIG_MODE_2
case 2:
reg_map = wm8350_mode2_defaults;
break;
#endif
#ifdef CONFIG_MFD_WM8350_CONFIG_MODE_3
case 3:
reg_map = wm8350_mode3_defaults;
break;
#endif
default:
dev_err(wm8350->dev,
"WM8350 configuration mode %d not supported\n",
mode);
return -EINVAL;
}
break;
case 1:
switch (mode) {
#ifdef CONFIG_MFD_WM8351_CONFIG_MODE_0
case 0:
reg_map = wm8351_mode0_defaults;
break;
#endif
#ifdef CONFIG_MFD_WM8351_CONFIG_MODE_1
case 1:
reg_map = wm8351_mode1_defaults;
break;
#endif
#ifdef CONFIG_MFD_WM8351_CONFIG_MODE_2
case 2:
reg_map = wm8351_mode2_defaults;
break;
#endif
#ifdef CONFIG_MFD_WM8351_CONFIG_MODE_3
case 3:
reg_map = wm8351_mode3_defaults;
break;
#endif
default:
dev_err(wm8350->dev,
"WM8351 configuration mode %d not supported\n",
mode);
return -EINVAL;
}
break;
case 2:
switch (mode) {
#ifdef CONFIG_MFD_WM8352_CONFIG_MODE_0
case 0:
reg_map = wm8352_mode0_defaults;
break;
#endif
#ifdef CONFIG_MFD_WM8352_CONFIG_MODE_1
case 1:
reg_map = wm8352_mode1_defaults;
break;
#endif
#ifdef CONFIG_MFD_WM8352_CONFIG_MODE_2
case 2:
reg_map = wm8352_mode2_defaults;
break;
#endif
#ifdef CONFIG_MFD_WM8352_CONFIG_MODE_3
case 3:
reg_map = wm8352_mode3_defaults;
break;
#endif
default:
dev_err(wm8350->dev,
"WM8352 configuration mode %d not supported\n",
mode);
return -EINVAL;
}
break;
default:
dev_err(wm8350->dev,
"WM835x configuration mode %d not supported\n",
mode);
return -EINVAL;
}
wm8350->reg_cache =
kmalloc(sizeof(u16) * (WM8350_MAX_REGISTER + 1), GFP_KERNEL);
if (wm8350->reg_cache == NULL)
return -ENOMEM;
/* Read the initial cache state back from the device - this is
* a PMIC so the device many not be in a virgin state and we
* can't rely on the silicon values.
*/
ret = wm8350->read_dev(wm8350, 0,
sizeof(u16) * (WM8350_MAX_REGISTER + 1),
wm8350->reg_cache);
if (ret < 0) {
dev_err(wm8350->dev,
"failed to read initial cache values\n");
goto out;
}
/* Mask out uncacheable/unreadable bits and the audio. */
for (i = 0; i < WM8350_MAX_REGISTER; i++) {
if (wm8350_reg_io_map[i].readable &&
(i < WM8350_CLOCK_CONTROL_1 || i > WM8350_AIF_TEST)) {
value = be16_to_cpu(wm8350->reg_cache[i]);
value &= wm8350_reg_io_map[i].readable;
wm8350->reg_cache[i] = value;
} else
wm8350->reg_cache[i] = reg_map[i];
}
out:
return ret;
}
/*
* Register a client device. This is non-fatal since there is no need to
* fail the entire device init due to a single platform device failing.
*/
static void wm8350_client_dev_register(struct wm8350 *wm8350,
const char *name,
struct platform_device **pdev)
{
int ret;
*pdev = platform_device_alloc(name, -1);
if (*pdev == NULL) {
dev_err(wm8350->dev, "Failed to allocate %s\n", name);
return;
}
(*pdev)->dev.parent = wm8350->dev;
platform_set_drvdata(*pdev, wm8350);
ret = platform_device_add(*pdev);
if (ret != 0) {
dev_err(wm8350->dev, "Failed to register %s: %d\n", name, ret);
platform_device_put(*pdev);
*pdev = NULL;
}
}
int wm8350_device_init(struct wm8350 *wm8350, int irq,
struct wm8350_platform_data *pdata)
{
int ret;
u16 id1, id2, mask_rev;
u16 cust_id, mode, chip_rev;
/* get WM8350 revision and config mode */
ret = wm8350->read_dev(wm8350, WM8350_RESET_ID, sizeof(id1), &id1);
if (ret != 0) {
dev_err(wm8350->dev, "Failed to read ID: %d\n", ret);
goto err;
}
ret = wm8350->read_dev(wm8350, WM8350_ID, sizeof(id2), &id2);
if (ret != 0) {
dev_err(wm8350->dev, "Failed to read ID: %d\n", ret);
goto err;
}
ret = wm8350->read_dev(wm8350, WM8350_REVISION, sizeof(mask_rev),
&mask_rev);
if (ret != 0) {
dev_err(wm8350->dev, "Failed to read revision: %d\n", ret);
goto err;
}
id1 = be16_to_cpu(id1);
id2 = be16_to_cpu(id2);
mask_rev = be16_to_cpu(mask_rev);
if (id1 != 0x6143) {
dev_err(wm8350->dev,
"Device with ID %x is not a WM8350\n", id1);
ret = -ENODEV;
goto err;
}
mode = id2 & WM8350_CONF_STS_MASK >> 10;
cust_id = id2 & WM8350_CUST_ID_MASK;
chip_rev = (id2 & WM8350_CHIP_REV_MASK) >> 12;
dev_info(wm8350->dev,
"CONF_STS %d, CUST_ID %d, MASK_REV %d, CHIP_REV %d\n",
mode, cust_id, mask_rev, chip_rev);
if (cust_id != 0) {
dev_err(wm8350->dev, "Unsupported CUST_ID\n");
ret = -ENODEV;
goto err;
}
switch (mask_rev) {
case 0:
wm8350->pmic.max_dcdc = WM8350_DCDC_6;
wm8350->pmic.max_isink = WM8350_ISINK_B;
switch (chip_rev) {
case WM8350_REV_E:
dev_info(wm8350->dev, "WM8350 Rev E\n");
break;
case WM8350_REV_F:
dev_info(wm8350->dev, "WM8350 Rev F\n");
break;
case WM8350_REV_G:
dev_info(wm8350->dev, "WM8350 Rev G\n");
wm8350->power.rev_g_coeff = 1;
break;
case WM8350_REV_H:
dev_info(wm8350->dev, "WM8350 Rev H\n");
wm8350->power.rev_g_coeff = 1;
break;
default:
/* For safety we refuse to run on unknown hardware */
dev_err(wm8350->dev, "Unknown WM8350 CHIP_REV\n");
ret = -ENODEV;
goto err;
}
break;
case 1:
wm8350->pmic.max_dcdc = WM8350_DCDC_4;
wm8350->pmic.max_isink = WM8350_ISINK_A;
switch (chip_rev) {
case 0:
dev_info(wm8350->dev, "WM8351 Rev A\n");
wm8350->power.rev_g_coeff = 1;
break;
case 1:
dev_info(wm8350->dev, "WM8351 Rev B\n");
wm8350->power.rev_g_coeff = 1;
break;
default:
dev_err(wm8350->dev, "Unknown WM8351 CHIP_REV\n");
ret = -ENODEV;
goto err;
}
break;
case 2:
wm8350->pmic.max_dcdc = WM8350_DCDC_6;
wm8350->pmic.max_isink = WM8350_ISINK_B;
switch (chip_rev) {
case 0:
dev_info(wm8350->dev, "WM8352 Rev A\n");
wm8350->power.rev_g_coeff = 1;
break;
default:
dev_err(wm8350->dev, "Unknown WM8352 CHIP_REV\n");
ret = -ENODEV;
goto err;
}
break;
default:
dev_err(wm8350->dev, "Unknown MASK_REV\n");
ret = -ENODEV;
goto err;
}
ret = wm8350_create_cache(wm8350, mask_rev, mode);
if (ret < 0) {
dev_err(wm8350->dev, "Failed to create register cache\n");
return ret;
}
mutex_init(&wm8350->auxadc_mutex);
init_completion(&wm8350->auxadc_done);
ret = wm8350_irq_init(wm8350, irq, pdata);
if (ret < 0)
goto err;
if (wm8350->irq_base) {
ret = request_threaded_irq(wm8350->irq_base +
WM8350_IRQ_AUXADC_DATARDY,
NULL, wm8350_auxadc_irq, 0,
"auxadc", wm8350);
if (ret < 0)
dev_warn(wm8350->dev,
"Failed to request AUXADC IRQ: %d\n", ret);
}
if (pdata && pdata->init) {
ret = pdata->init(wm8350);
if (ret != 0) {
dev_err(wm8350->dev, "Platform init() failed: %d\n",
ret);
goto err_irq;
}
}
wm8350_reg_write(wm8350, WM8350_SYSTEM_INTERRUPTS_MASK, 0x0);
wm8350_client_dev_register(wm8350, "wm8350-codec",
&(wm8350->codec.pdev));
wm8350_client_dev_register(wm8350, "wm8350-gpio",
&(wm8350->gpio.pdev));
wm8350_client_dev_register(wm8350, "wm8350-hwmon",
&(wm8350->hwmon.pdev));
wm8350_client_dev_register(wm8350, "wm8350-power",
&(wm8350->power.pdev));
wm8350_client_dev_register(wm8350, "wm8350-rtc", &(wm8350->rtc.pdev));
wm8350_client_dev_register(wm8350, "wm8350-wdt", &(wm8350->wdt.pdev));
return 0;
err_irq:
wm8350_irq_exit(wm8350);
err:
kfree(wm8350->reg_cache);
return ret;
}
EXPORT_SYMBOL_GPL(wm8350_device_init);
void wm8350_device_exit(struct wm8350 *wm8350)
{
int i;
for (i = 0; i < ARRAY_SIZE(wm8350->pmic.led); i++)
platform_device_unregister(wm8350->pmic.led[i].pdev);
for (i = 0; i < ARRAY_SIZE(wm8350->pmic.pdev); i++)
platform_device_unregister(wm8350->pmic.pdev[i]);
platform_device_unregister(wm8350->wdt.pdev);
platform_device_unregister(wm8350->rtc.pdev);
platform_device_unregister(wm8350->power.pdev);
platform_device_unregister(wm8350->hwmon.pdev);
platform_device_unregister(wm8350->gpio.pdev);
platform_device_unregister(wm8350->codec.pdev);
if (wm8350->irq_base)
free_irq(wm8350->irq_base + WM8350_IRQ_AUXADC_DATARDY, wm8350);
wm8350_irq_exit(wm8350);
kfree(wm8350->reg_cache);
}
EXPORT_SYMBOL_GPL(wm8350_device_exit);
MODULE_DESCRIPTION("WM8350 AudioPlus PMIC core driver");
MODULE_LICENSE("GPL");
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