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Commit 94be70d4 authored by Linus Walleij's avatar Linus Walleij Committed by Samuel Ortiz
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mfd: Break out ab5500 debugfs code 

This breaks the debugfs portions of the AB5500 driver into its own
file. Split off a _raw function to access registers since we don't
want to expose a generically named function globally. Move all
required data structures to a shared ab5500-core.h file.

Cc: Mattias Wallin <mattias.wallin@stericsson.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent b7ddac53
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Showing with 941 additions and 890 deletions
drivers/mfd/Kconfig
View file @ 94be70d4
......@@ -572,6 +572,14 @@ config AB5500_CORE
chip. This connects to the db5500 chip via the I2C bus via PRCMU.
This chip embeds various other multimedia funtionalities as well.
config AB5500_DEBUG
bool "Enable debug info via debugfs"
depends on AB5500_CORE && DEBUG_FS
default y if DEBUG_FS
help
Select this option if you want debug information from the AB5500
using the debug filesystem, debugfs.
config AB8500_CORE
bool "ST-Ericsson AB8500 Mixed Signal Power Management chip"
depends on GENERIC_HARDIRQS && ABX500_CORE
......
drivers/mfd/Makefile
View file @ 94be70d4
......@@ -81,6 +81,7 @@ obj-$(CONFIG_AB3100_CORE) += ab3100-core.o
obj-$(CONFIG_AB3100_OTP) += ab3100-otp.o
obj-$(CONFIG_AB3550_CORE) += ab3550-core.o
obj-$(CONFIG_AB5500_CORE) += ab5500-core.o
obj-$(CONFIG_AB5500_DEBUG) += ab5500-debugfs.o
obj-$(CONFIG_AB8500_CORE) += ab8500-core.o ab8500-sysctrl.o
obj-$(CONFIG_AB8500_DEBUG) += ab8500-debugfs.o
obj-$(CONFIG_AB8500_GPADC) += ab8500-gpadc.o
......
drivers/mfd/ab5500-core.c
View file @ 94be70d4
......@@ -21,9 +21,6 @@
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/random.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/uaccess.h>
#include <linux/mfd/ab5500/ab5500.h>
#include <linux/mfd/abx500.h>
#include <linux/list.h>
......@@ -33,87 +30,13 @@
#include <linux/version.h>
#include <linux/mfd/db5500-prcmu.h>
#include "ab5500-core.h"
#include "ab5500-debugfs.h"
#define AB5500_NUM_EVENT_REG 23
#define AB5500_IT_LATCH0_REG 0x40
#define AB5500_IT_MASK0_REG 0x60
/* Read/write operation values. */
#define AB5500_PERM_RD (0x01)
#define AB5500_PERM_WR (0x02)
/* Read/write permissions. */
#define AB5500_PERM_RO (AB5500_PERM_RD)
#define AB5500_PERM_RW (AB5500_PERM_RD | AB5500_PERM_WR)
#define AB5500_MASK_BASE (0x60)
#define AB5500_MASK_END (0x79)
#define AB5500_CHIP_ID (0x20)
/**
* struct ab5500_bank
* @slave_addr: I2C slave_addr found in AB5500 specification
* @name: Documentation name of the bank. For reference
*/
struct ab5500_bank {
u8 slave_addr;
const char *name;
};
static const struct ab5500_bank bankinfo[AB5500_NUM_BANKS] = {
[AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP] = {
AB5500_ADDR_VIT_IO_I2C_CLK_TST_OTP, "VIT_IO_I2C_CLK_TST_OTP"},
[AB5500_BANK_VDDDIG_IO_I2C_CLK_TST] = {
AB5500_ADDR_VDDDIG_IO_I2C_CLK_TST, "VDDDIG_IO_I2C_CLK_TST"},
[AB5500_BANK_VDENC] = {AB5500_ADDR_VDENC, "VDENC"},
[AB5500_BANK_SIM_USBSIM] = {AB5500_ADDR_SIM_USBSIM, "SIM_USBSIM"},
[AB5500_BANK_LED] = {AB5500_ADDR_LED, "LED"},
[AB5500_BANK_ADC] = {AB5500_ADDR_ADC, "ADC"},
[AB5500_BANK_RTC] = {AB5500_ADDR_RTC, "RTC"},
[AB5500_BANK_STARTUP] = {AB5500_ADDR_STARTUP, "STARTUP"},
[AB5500_BANK_DBI_ECI] = {AB5500_ADDR_DBI_ECI, "DBI-ECI"},
[AB5500_BANK_CHG] = {AB5500_ADDR_CHG, "CHG"},
[AB5500_BANK_FG_BATTCOM_ACC] = {
AB5500_ADDR_FG_BATTCOM_ACC, "FG_BATCOM_ACC"},
[AB5500_BANK_USB] = {AB5500_ADDR_USB, "USB"},
[AB5500_BANK_IT] = {AB5500_ADDR_IT, "IT"},
[AB5500_BANK_VIBRA] = {AB5500_ADDR_VIBRA, "VIBRA"},
[AB5500_BANK_AUDIO_HEADSETUSB] = {
AB5500_ADDR_AUDIO_HEADSETUSB, "AUDIO_HEADSETUSB"},
};
/**
* struct ab5500_reg_range
* @first: the first address of the range
* @last: the last address of the range
* @perm: access permissions for the range
*/
struct ab5500_reg_range {
u8 first;
u8 last;
u8 perm;
};
/**
* struct ab5500_i2c_ranges
* @count: the number of ranges in the list
* @range: the list of register ranges
*/
struct ab5500_i2c_ranges {
u8 nranges;
u8 bankid;
const struct ab5500_reg_range *range;
};
/**
* struct ab5500_i2c_banks
* @count: the number of ranges in the list
* @range: the list of register ranges
*/
struct ab5500_i2c_banks {
u8 nbanks;
const struct ab5500_i2c_ranges *bank;
};
/*
* Permissible register ranges for reading and writing per device and bank.
*
......@@ -1073,8 +996,9 @@ static struct mfd_cell ab5500_devs[AB5500_NUM_DEVICES] = {
/*
* Functionality for getting/setting register values.
*/
static int get_register_interruptible(struct ab5500 *ab, u8 bank, u8 reg,
u8 *value)
int ab5500_get_register_interruptible_raw(struct ab5500 *ab,
u8 bank, u8 reg,
u8 *value)
{
int err;
......@@ -1121,7 +1045,7 @@ static int get_register_page_interruptible(struct ab5500 *ab, u8 bank,
return err;
}
static int mask_and_set_register_interruptible(struct ab5500 *ab, u8 bank,
int ab5500_mask_and_set_register_interruptible_raw(struct ab5500 *ab, u8 bank,
u8 reg, u8 bitmask, u8 bitvalues)
{
int err = 0;
......@@ -1158,7 +1082,8 @@ static int mask_and_set_register_interruptible(struct ab5500 *ab, u8 bank,
static int
set_register_interruptible(struct ab5500 *ab, u8 bank, u8 reg, u8 value)
{
return mask_and_set_register_interruptible(ab, bank, reg, 0xff, value);
return ab5500_mask_and_set_register_interruptible_raw(ab, bank, reg,
0xff, value);
}
/*
......@@ -1261,7 +1186,7 @@ static int ab5500_mask_and_set_register_interruptible(struct device *dev,
return -EINVAL;
ab = dev_get_drvdata(dev->parent);
return mask_and_set_register_interruptible(ab, bank, reg,
return ab5500_mask_and_set_register_interruptible_raw(ab, bank, reg,
bitmask, bitvalues);
}
......@@ -1283,7 +1208,7 @@ static int ab5500_get_register_interruptible(struct device *dev, u8 bank,
return -EINVAL;
ab = dev_get_drvdata(dev->parent);
return get_register_interruptible(ab, bank, reg, value);
return ab5500_get_register_interruptible_raw(ab, bank, reg, value);
}
static int ab5500_get_register_page_interruptible(struct device *dev, u8 bank,
......@@ -1327,806 +1252,6 @@ static struct abx500_ops ab5500_ops = {
.startup_irq_enabled = NULL,
};
#ifdef CONFIG_DEBUG_FS
static struct ab5500_i2c_ranges ab5500_reg_ranges[AB5500_NUM_BANKS] = {
[AB5500_BANK_LED] = {
.bankid = AB5500_BANK_LED,
.nranges = 1,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x0C,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_ADC] = {
.bankid = AB5500_BANK_ADC,
.nranges = 6,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x1F,
.last = 0x22,
.perm = AB5500_PERM_RO,
},
{
.first = 0x23,
.last = 0x24,
.perm = AB5500_PERM_RW,
},
{
.first = 0x26,
.last = 0x2D,
.perm = AB5500_PERM_RO,
},
{
.first = 0x2F,
.last = 0x34,
.perm = AB5500_PERM_RW,
},
{
.first = 0x37,
.last = 0x57,
.perm = AB5500_PERM_RW,
},
{
.first = 0x58,
.last = 0x58,
.perm = AB5500_PERM_RO,
},
},
},
[AB5500_BANK_RTC] = {
.bankid = AB5500_BANK_RTC,
.nranges = 2,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x04,
.perm = AB5500_PERM_RW,
},
{
.first = 0x06,
.last = 0x0C,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_STARTUP] = {
.bankid = AB5500_BANK_STARTUP,
.nranges = 12,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x01,
.perm = AB5500_PERM_RW,
},
{
.first = 0x1F,
.last = 0x1F,
.perm = AB5500_PERM_RW,
},
{
.first = 0x2E,
.last = 0x2E,
.perm = AB5500_PERM_RO,
},
{
.first = 0x2F,
.last = 0x30,
.perm = AB5500_PERM_RW,
},
{
.first = 0x50,
.last = 0x51,
.perm = AB5500_PERM_RW,
},
{
.first = 0x60,
.last = 0x61,
.perm = AB5500_PERM_RW,
},
{
.first = 0x66,
.last = 0x8A,
.perm = AB5500_PERM_RW,
},
{
.first = 0x8C,
.last = 0x96,
.perm = AB5500_PERM_RW,
},
{
.first = 0xAA,
.last = 0xB4,
.perm = AB5500_PERM_RW,
},
{
.first = 0xB7,
.last = 0xBF,
.perm = AB5500_PERM_RW,
},
{
.first = 0xC1,
.last = 0xCA,
.perm = AB5500_PERM_RW,
},
{
.first = 0xD3,
.last = 0xE0,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_DBI_ECI] = {
.bankid = AB5500_BANK_DBI_ECI,
.nranges = 3,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x07,
.perm = AB5500_PERM_RW,
},
{
.first = 0x10,
.last = 0x10,
.perm = AB5500_PERM_RW,
},
{
.first = 0x13,
.last = 0x13,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_CHG] = {
.bankid = AB5500_BANK_CHG,
.nranges = 2,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x11,
.last = 0x11,
.perm = AB5500_PERM_RO,
},
{
.first = 0x12,
.last = 0x1B,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_FG_BATTCOM_ACC] = {
.bankid = AB5500_BANK_FG_BATTCOM_ACC,
.nranges = 2,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x0B,
.perm = AB5500_PERM_RO,
},
{
.first = 0x0C,
.last = 0x10,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_USB] = {
.bankid = AB5500_BANK_USB,
.nranges = 12,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x01,
.last = 0x01,
.perm = AB5500_PERM_RW,
},
{
.first = 0x80,
.last = 0x83,
.perm = AB5500_PERM_RW,
},
{
.first = 0x87,
.last = 0x8A,
.perm = AB5500_PERM_RW,
},
{
.first = 0x8B,
.last = 0x8B,
.perm = AB5500_PERM_RO,
},
{
.first = 0x91,
.last = 0x92,
.perm = AB5500_PERM_RO,
},
{
.first = 0x93,
.last = 0x93,
.perm = AB5500_PERM_RW,
},
{
.first = 0x94,
.last = 0x94,
.perm = AB5500_PERM_RO,
},
{
.first = 0xA8,
.last = 0xB0,
.perm = AB5500_PERM_RO,
},
{
.first = 0xB2,
.last = 0xB2,
.perm = AB5500_PERM_RO,
},
{
.first = 0xB4,
.last = 0xBC,
.perm = AB5500_PERM_RO,
},
{
.first = 0xBF,
.last = 0xBF,
.perm = AB5500_PERM_RO,
},
{
.first = 0xC1,
.last = 0xC5,
.perm = AB5500_PERM_RO,
},
},
},
[AB5500_BANK_IT] = {
.bankid = AB5500_BANK_IT,
.nranges = 4,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x02,
.perm = AB5500_PERM_RO,
},
{
.first = 0x20,
.last = 0x36,
.perm = AB5500_PERM_RO,
},
{
.first = 0x40,
.last = 0x56,
.perm = AB5500_PERM_RO,
},
{
.first = 0x60,
.last = 0x76,
.perm = AB5500_PERM_RO,
},
},
},
[AB5500_BANK_VDDDIG_IO_I2C_CLK_TST] = {
.bankid = AB5500_BANK_VDDDIG_IO_I2C_CLK_TST,
.nranges = 7,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x02,
.last = 0x02,
.perm = AB5500_PERM_RW,
},
{
.first = 0x12,
.last = 0x12,
.perm = AB5500_PERM_RW,
},
{
.first = 0x30,
.last = 0x34,
.perm = AB5500_PERM_RW,
},
{
.first = 0x40,
.last = 0x44,
.perm = AB5500_PERM_RW,
},
{
.first = 0x50,
.last = 0x54,
.perm = AB5500_PERM_RW,
},
{
.first = 0x60,
.last = 0x64,
.perm = AB5500_PERM_RW,
},
{
.first = 0x70,
.last = 0x74,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP] = {
.bankid = AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP,
.nranges = 13,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x01,
.last = 0x01,
.perm = AB5500_PERM_RW,
},
{
.first = 0x02,
.last = 0x02,
.perm = AB5500_PERM_RO,
},
{
.first = 0x0D,
.last = 0x0F,
.perm = AB5500_PERM_RW,
},
{
.first = 0x1C,
.last = 0x1C,
.perm = AB5500_PERM_RW,
},
{
.first = 0x1E,
.last = 0x1E,
.perm = AB5500_PERM_RW,
},
{
.first = 0x20,
.last = 0x21,
.perm = AB5500_PERM_RW,
},
{
.first = 0x25,
.last = 0x25,
.perm = AB5500_PERM_RW,
},
{
.first = 0x28,
.last = 0x2A,
.perm = AB5500_PERM_RW,
},
{
.first = 0x30,
.last = 0x33,
.perm = AB5500_PERM_RW,
},
{
.first = 0x40,
.last = 0x43,
.perm = AB5500_PERM_RW,
},
{
.first = 0x50,
.last = 0x53,
.perm = AB5500_PERM_RW,
},
{
.first = 0x60,
.last = 0x63,
.perm = AB5500_PERM_RW,
},
{
.first = 0x70,
.last = 0x73,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_VIBRA] = {
.bankid = AB5500_BANK_VIBRA,
.nranges = 2,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x10,
.last = 0x13,
.perm = AB5500_PERM_RW,
},
{
.first = 0xFE,
.last = 0xFE,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_AUDIO_HEADSETUSB] = {
.bankid = AB5500_BANK_AUDIO_HEADSETUSB,
.nranges = 2,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x48,
.perm = AB5500_PERM_RW,
},
{
.first = 0xEB,
.last = 0xFB,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_SIM_USBSIM] = {
.bankid = AB5500_BANK_SIM_USBSIM,
.nranges = 1,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x13,
.last = 0x19,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_VDENC] = {
.bankid = AB5500_BANK_VDENC,
.nranges = 12,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x08,
.perm = AB5500_PERM_RW,
},
{
.first = 0x09,
.last = 0x09,
.perm = AB5500_PERM_RO,
},
{
.first = 0x0A,
.last = 0x12,
.perm = AB5500_PERM_RW,
},
{
.first = 0x15,
.last = 0x19,
.perm = AB5500_PERM_RW,
},
{
.first = 0x1B,
.last = 0x21,
.perm = AB5500_PERM_RW,
},
{
.first = 0x27,
.last = 0x2C,
.perm = AB5500_PERM_RW,
},
{
.first = 0x41,
.last = 0x41,
.perm = AB5500_PERM_RW,
},
{
.first = 0x45,
.last = 0x5B,
.perm = AB5500_PERM_RW,
},
{
.first = 0x5D,
.last = 0x5D,
.perm = AB5500_PERM_RW,
},
{
.first = 0x69,
.last = 0x69,
.perm = AB5500_PERM_RW,
},
{
.first = 0x6C,
.last = 0x6D,
.perm = AB5500_PERM_RW,
},
{
.first = 0x80,
.last = 0x81,
.perm = AB5500_PERM_RW,
},
},
},
};
static int ab5500_registers_print(struct seq_file *s, void *p)
{
struct ab5500 *ab = s->private;
unsigned int i;
u8 bank = (u8)ab->debug_bank;
seq_printf(s, "ab5500 register values:\n");
for (bank = 0; bank < AB5500_NUM_BANKS; bank++) {
seq_printf(s, " bank %u, %s (0x%x):\n", bank,
bankinfo[bank].name,
bankinfo[bank].slave_addr);
for (i = 0; i < ab5500_reg_ranges[bank].nranges; i++) {
u8 reg;
int err;
for (reg = ab5500_reg_ranges[bank].range[i].first;
reg <= ab5500_reg_ranges[bank].range[i].last;
reg++) {
u8 value;
err = get_register_interruptible(ab, bank, reg,
&value);
if (err < 0) {
dev_err(ab->dev, "get_reg failed %d"
"bank 0x%x reg 0x%x\n",
err, bank, reg);
return err;
}
err = seq_printf(s, "[%d/0x%02X]: 0x%02X\n",
bank, reg, value);
if (err < 0) {
dev_err(ab->dev,
"seq_printf overflow\n");
/*
* Error is not returned here since
* the output is wanted in any case
*/
return 0;
}
}
}
}
return 0;
}
static int ab5500_registers_open(struct inode *inode, struct file *file)
{
return single_open(file, ab5500_registers_print, inode->i_private);
}
static const struct file_operations ab5500_registers_fops = {
.open = ab5500_registers_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
};
static int ab5500_bank_print(struct seq_file *s, void *p)
{
struct ab5500 *ab = s->private;
seq_printf(s, "%d\n", ab->debug_bank);
return 0;
}
static int ab5500_bank_open(struct inode *inode, struct file *file)
{
return single_open(file, ab5500_bank_print, inode->i_private);
}
static ssize_t ab5500_bank_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private;
char buf[32];
int buf_size;
unsigned long user_bank;
int err;
/* Get userspace string and assure termination */
buf_size = min(count, (sizeof(buf) - 1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
err = strict_strtoul(buf, 0, &user_bank);
if (err)
return -EINVAL;
if (user_bank >= AB5500_NUM_BANKS) {
dev_err(ab->dev,
"debugfs error input > number of banks\n");
return -EINVAL;
}
ab->debug_bank = user_bank;
return buf_size;
}
static int ab5500_address_print(struct seq_file *s, void *p)
{
struct ab5500 *ab = s->private;
seq_printf(s, "0x%02X\n", ab->debug_address);
return 0;
}
static int ab5500_address_open(struct inode *inode, struct file *file)
{
return single_open(file, ab5500_address_print, inode->i_private);
}
static ssize_t ab5500_address_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private;
char buf[32];
int buf_size;
unsigned long user_address;
int err;
/* Get userspace string and assure termination */
buf_size = min(count, (sizeof(buf) - 1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
err = strict_strtoul(buf, 0, &user_address);
if (err)
return -EINVAL;
if (user_address > 0xff) {
dev_err(ab->dev,
"debugfs error input > 0xff\n");
return -EINVAL;
}
ab->debug_address = user_address;
return buf_size;
}
static int ab5500_val_print(struct seq_file *s, void *p)
{
struct ab5500 *ab = s->private;
int err;
u8 regvalue;
err = get_register_interruptible(ab, (u8)ab->debug_bank,
(u8)ab->debug_address, &regvalue);
if (err) {
dev_err(ab->dev, "get_reg failed %d, bank 0x%x"
", reg 0x%x\n", err, ab->debug_bank,
ab->debug_address);
return -EINVAL;
}
seq_printf(s, "0x%02X\n", regvalue);
return 0;
}
static int ab5500_val_open(struct inode *inode, struct file *file)
{
return single_open(file, ab5500_val_print, inode->i_private);
}
static ssize_t ab5500_val_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private;
char buf[32];
int buf_size;
unsigned long user_val;
int err;
u8 regvalue;
/* Get userspace string and assure termination */
buf_size = min(count, (sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
err = strict_strtoul(buf, 0, &user_val);
if (err)
return -EINVAL;
if (user_val > 0xff) {
dev_err(ab->dev,
"debugfs error input > 0xff\n");
return -EINVAL;
}
err = mask_and_set_register_interruptible(
ab, (u8)ab->debug_bank,
(u8)ab->debug_address, 0xFF, (u8)user_val);
if (err)
return -EINVAL;
get_register_interruptible(ab, (u8)ab->debug_bank,
(u8)ab->debug_address, &regvalue);
if (err)
return -EINVAL;
return buf_size;
}
static const struct file_operations ab5500_bank_fops = {
.open = ab5500_bank_open,
.write = ab5500_bank_write,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
};
static const struct file_operations ab5500_address_fops = {
.open = ab5500_address_open,
.write = ab5500_address_write,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
};
static const struct file_operations ab5500_val_fops = {
.open = ab5500_val_open,
.write = ab5500_val_write,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
};
static struct dentry *ab5500_dir;
static struct dentry *ab5500_reg_file;
static struct dentry *ab5500_bank_file;
static struct dentry *ab5500_address_file;
static struct dentry *ab5500_val_file;
static inline void ab5500_setup_debugfs(struct ab5500 *ab)
{
ab->debug_bank = AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP;
ab->debug_address = AB5500_CHIP_ID;
ab5500_dir = debugfs_create_dir("ab5500", NULL);
if (!ab5500_dir)
goto exit_no_debugfs;
ab5500_reg_file = debugfs_create_file("all-bank-registers",
S_IRUGO, ab5500_dir, ab, &ab5500_registers_fops);
if (!ab5500_reg_file)
goto exit_destroy_dir;
ab5500_bank_file = debugfs_create_file("register-bank",
(S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_bank_fops);
if (!ab5500_bank_file)
goto exit_destroy_reg;
ab5500_address_file = debugfs_create_file("register-address",
(S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_address_fops);
if (!ab5500_address_file)
goto exit_destroy_bank;
ab5500_val_file = debugfs_create_file("register-value",
(S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_val_fops);
if (!ab5500_val_file)
goto exit_destroy_address;
return;
exit_destroy_address:
debugfs_remove(ab5500_address_file);
exit_destroy_bank:
debugfs_remove(ab5500_bank_file);
exit_destroy_reg:
debugfs_remove(ab5500_reg_file);
exit_destroy_dir:
debugfs_remove(ab5500_dir);
exit_no_debugfs:
dev_err(ab->dev, "failed to create debugfs entries.\n");
return;
}
static inline void ab5500_remove_debugfs(void)
{
debugfs_remove(ab5500_val_file);
debugfs_remove(ab5500_address_file);
debugfs_remove(ab5500_bank_file);
debugfs_remove(ab5500_reg_file);
debugfs_remove(ab5500_dir);
}
#else /* !CONFIG_DEBUG_FS */
static inline void ab5500_setup_debugfs(struct ab5500 *ab)
{
}
static inline void ab5500_remove_debugfs(void)
{
}
#endif
/*
* ab5500_setup : Basic set-up, datastructure creation/destruction
* and I2C interface.This sets up a default config
......@@ -2142,7 +1267,7 @@ static int __init ab5500_setup(struct ab5500 *ab,
int i;
for (i = 0; i < size; i++) {
err = mask_and_set_register_interruptible(ab,
err = ab5500_mask_and_set_register_interruptible_raw(ab,
settings[i].bank,
settings[i].reg,
0xFF, settings[i].setting);
......@@ -2205,8 +1330,9 @@ static int __init ab5500_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, ab);
/* Read chip ID register */
err = get_register_interruptible(ab, AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP,
AB5500_CHIP_ID, &ab->chip_id);
err = ab5500_get_register_interruptible_raw(ab,
AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP,
AB5500_CHIP_ID, &ab->chip_id);
if (err) {
dev_err(&pdev->dev, "could not communicate with the analog "
"baseband chip\n");
......@@ -2233,7 +1359,8 @@ static int __init ab5500_probe(struct platform_device *pdev)
u8 maskreg = AB5500_IT_MASK0_REG + i;
u8 val;
get_register_interruptible(ab, AB5500_BANK_IT, latchreg, &val);
ab5500_get_register_interruptible_raw(ab, AB5500_BANK_IT,
latchreg, &val);
set_register_interruptible(ab, AB5500_BANK_IT, maskreg, 0xff);
ab->mask[i] = ab->oldmask[i] = 0xff;
}
......
drivers/mfd/ab5500-core.h 0 → 100644
View file @ 94be70d4
/*
* Copyright (C) 2011 ST-Ericsson
* License terms: GNU General Public License (GPL) version 2
* Shared definitions and data structures for the AB5500 MFD driver
*/
/* Read/write operation values. */
#define AB5500_PERM_RD (0x01)
#define AB5500_PERM_WR (0x02)
/* Read/write permissions. */
#define AB5500_PERM_RO (AB5500_PERM_RD)
#define AB5500_PERM_RW (AB5500_PERM_RD | AB5500_PERM_WR)
#define AB5500_MASK_BASE (0x60)
#define AB5500_MASK_END (0x79)
#define AB5500_CHIP_ID (0x20)
/**
* struct ab5500_reg_range
* @first: the first address of the range
* @last: the last address of the range
* @perm: access permissions for the range
*/
struct ab5500_reg_range {
u8 first;
u8 last;
u8 perm;
};
/**
* struct ab5500_i2c_ranges
* @count: the number of ranges in the list
* @range: the list of register ranges
*/
struct ab5500_i2c_ranges {
u8 nranges;
u8 bankid;
const struct ab5500_reg_range *range;
};
/**
* struct ab5500_i2c_banks
* @count: the number of ranges in the list
* @range: the list of register ranges
*/
struct ab5500_i2c_banks {
u8 nbanks;
const struct ab5500_i2c_ranges *bank;
};
/**
* struct ab5500_bank
* @slave_addr: I2C slave_addr found in AB5500 specification
* @name: Documentation name of the bank. For reference
*/
struct ab5500_bank {
u8 slave_addr;
const char *name;
};
static const struct ab5500_bank bankinfo[AB5500_NUM_BANKS] = {
[AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP] = {
AB5500_ADDR_VIT_IO_I2C_CLK_TST_OTP, "VIT_IO_I2C_CLK_TST_OTP"},
[AB5500_BANK_VDDDIG_IO_I2C_CLK_TST] = {
AB5500_ADDR_VDDDIG_IO_I2C_CLK_TST, "VDDDIG_IO_I2C_CLK_TST"},
[AB5500_BANK_VDENC] = {AB5500_ADDR_VDENC, "VDENC"},
[AB5500_BANK_SIM_USBSIM] = {AB5500_ADDR_SIM_USBSIM, "SIM_USBSIM"},
[AB5500_BANK_LED] = {AB5500_ADDR_LED, "LED"},
[AB5500_BANK_ADC] = {AB5500_ADDR_ADC, "ADC"},
[AB5500_BANK_RTC] = {AB5500_ADDR_RTC, "RTC"},
[AB5500_BANK_STARTUP] = {AB5500_ADDR_STARTUP, "STARTUP"},
[AB5500_BANK_DBI_ECI] = {AB5500_ADDR_DBI_ECI, "DBI-ECI"},
[AB5500_BANK_CHG] = {AB5500_ADDR_CHG, "CHG"},
[AB5500_BANK_FG_BATTCOM_ACC] = {
AB5500_ADDR_FG_BATTCOM_ACC, "FG_BATCOM_ACC"},
[AB5500_BANK_USB] = {AB5500_ADDR_USB, "USB"},
[AB5500_BANK_IT] = {AB5500_ADDR_IT, "IT"},
[AB5500_BANK_VIBRA] = {AB5500_ADDR_VIBRA, "VIBRA"},
[AB5500_BANK_AUDIO_HEADSETUSB] = {
AB5500_ADDR_AUDIO_HEADSETUSB, "AUDIO_HEADSETUSB"},
};
int ab5500_get_register_interruptible_raw(struct ab5500 *ab, u8 bank, u8 reg,
u8 *value);
int ab5500_mask_and_set_register_interruptible_raw(struct ab5500 *ab, u8 bank,
u8 reg, u8 bitmask, u8 bitvalues);
drivers/mfd/ab5500-debugfs.c 0 → 100644
View file @ 94be70d4
/*
* Copyright (C) 2011 ST-Ericsson
* License terms: GNU General Public License (GPL) version 2
* Debugfs support for the AB5500 MFD driver
*/
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/mfd/ab5500/ab5500.h>
#include <linux/mfd/abx500.h>
#include <linux/uaccess.h>
#include "ab5500-core.h"
#include "ab5500-debugfs.h"
static struct ab5500_i2c_ranges ab5500_reg_ranges[AB5500_NUM_BANKS] = {
[AB5500_BANK_LED] = {
.bankid = AB5500_BANK_LED,
.nranges = 1,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x0C,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_ADC] = {
.bankid = AB5500_BANK_ADC,
.nranges = 6,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x1F,
.last = 0x22,
.perm = AB5500_PERM_RO,
},
{
.first = 0x23,
.last = 0x24,
.perm = AB5500_PERM_RW,
},
{
.first = 0x26,
.last = 0x2D,
.perm = AB5500_PERM_RO,
},
{
.first = 0x2F,
.last = 0x34,
.perm = AB5500_PERM_RW,
},
{
.first = 0x37,
.last = 0x57,
.perm = AB5500_PERM_RW,
},
{
.first = 0x58,
.last = 0x58,
.perm = AB5500_PERM_RO,
},
},
},
[AB5500_BANK_RTC] = {
.bankid = AB5500_BANK_RTC,
.nranges = 2,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x04,
.perm = AB5500_PERM_RW,
},
{
.first = 0x06,
.last = 0x0C,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_STARTUP] = {
.bankid = AB5500_BANK_STARTUP,
.nranges = 12,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x01,
.perm = AB5500_PERM_RW,
},
{
.first = 0x1F,
.last = 0x1F,
.perm = AB5500_PERM_RW,
},
{
.first = 0x2E,
.last = 0x2E,
.perm = AB5500_PERM_RO,
},
{
.first = 0x2F,
.last = 0x30,
.perm = AB5500_PERM_RW,
},
{
.first = 0x50,
.last = 0x51,
.perm = AB5500_PERM_RW,
},
{
.first = 0x60,
.last = 0x61,
.perm = AB5500_PERM_RW,
},
{
.first = 0x66,
.last = 0x8A,
.perm = AB5500_PERM_RW,
},
{
.first = 0x8C,
.last = 0x96,
.perm = AB5500_PERM_RW,
},
{
.first = 0xAA,
.last = 0xB4,
.perm = AB5500_PERM_RW,
},
{
.first = 0xB7,
.last = 0xBF,
.perm = AB5500_PERM_RW,
},
{
.first = 0xC1,
.last = 0xCA,
.perm = AB5500_PERM_RW,
},
{
.first = 0xD3,
.last = 0xE0,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_DBI_ECI] = {
.bankid = AB5500_BANK_DBI_ECI,
.nranges = 3,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x07,
.perm = AB5500_PERM_RW,
},
{
.first = 0x10,
.last = 0x10,
.perm = AB5500_PERM_RW,
},
{
.first = 0x13,
.last = 0x13,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_CHG] = {
.bankid = AB5500_BANK_CHG,
.nranges = 2,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x11,
.last = 0x11,
.perm = AB5500_PERM_RO,
},
{
.first = 0x12,
.last = 0x1B,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_FG_BATTCOM_ACC] = {
.bankid = AB5500_BANK_FG_BATTCOM_ACC,
.nranges = 2,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x0B,
.perm = AB5500_PERM_RO,
},
{
.first = 0x0C,
.last = 0x10,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_USB] = {
.bankid = AB5500_BANK_USB,
.nranges = 12,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x01,
.last = 0x01,
.perm = AB5500_PERM_RW,
},
{
.first = 0x80,
.last = 0x83,
.perm = AB5500_PERM_RW,
},
{
.first = 0x87,
.last = 0x8A,
.perm = AB5500_PERM_RW,
},
{
.first = 0x8B,
.last = 0x8B,
.perm = AB5500_PERM_RO,
},
{
.first = 0x91,
.last = 0x92,
.perm = AB5500_PERM_RO,
},
{
.first = 0x93,
.last = 0x93,
.perm = AB5500_PERM_RW,
},
{
.first = 0x94,
.last = 0x94,
.perm = AB5500_PERM_RO,
},
{
.first = 0xA8,
.last = 0xB0,
.perm = AB5500_PERM_RO,
},
{
.first = 0xB2,
.last = 0xB2,
.perm = AB5500_PERM_RO,
},
{
.first = 0xB4,
.last = 0xBC,
.perm = AB5500_PERM_RO,
},
{
.first = 0xBF,
.last = 0xBF,
.perm = AB5500_PERM_RO,
},
{
.first = 0xC1,
.last = 0xC5,
.perm = AB5500_PERM_RO,
},
},
},
[AB5500_BANK_IT] = {
.bankid = AB5500_BANK_IT,
.nranges = 4,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x02,
.perm = AB5500_PERM_RO,
},
{
.first = 0x20,
.last = 0x36,
.perm = AB5500_PERM_RO,
},
{
.first = 0x40,
.last = 0x56,
.perm = AB5500_PERM_RO,
},
{
.first = 0x60,
.last = 0x76,
.perm = AB5500_PERM_RO,
},
},
},
[AB5500_BANK_VDDDIG_IO_I2C_CLK_TST] = {
.bankid = AB5500_BANK_VDDDIG_IO_I2C_CLK_TST,
.nranges = 7,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x02,
.last = 0x02,
.perm = AB5500_PERM_RW,
},
{
.first = 0x12,
.last = 0x12,
.perm = AB5500_PERM_RW,
},
{
.first = 0x30,
.last = 0x34,
.perm = AB5500_PERM_RW,
},
{
.first = 0x40,
.last = 0x44,
.perm = AB5500_PERM_RW,
},
{
.first = 0x50,
.last = 0x54,
.perm = AB5500_PERM_RW,
},
{
.first = 0x60,
.last = 0x64,
.perm = AB5500_PERM_RW,
},
{
.first = 0x70,
.last = 0x74,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP] = {
.bankid = AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP,
.nranges = 13,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x01,
.last = 0x01,
.perm = AB5500_PERM_RW,
},
{
.first = 0x02,
.last = 0x02,
.perm = AB5500_PERM_RO,
},
{
.first = 0x0D,
.last = 0x0F,
.perm = AB5500_PERM_RW,
},
{
.first = 0x1C,
.last = 0x1C,
.perm = AB5500_PERM_RW,
},
{
.first = 0x1E,
.last = 0x1E,
.perm = AB5500_PERM_RW,
},
{
.first = 0x20,
.last = 0x21,
.perm = AB5500_PERM_RW,
},
{
.first = 0x25,
.last = 0x25,
.perm = AB5500_PERM_RW,
},
{
.first = 0x28,
.last = 0x2A,
.perm = AB5500_PERM_RW,
},
{
.first = 0x30,
.last = 0x33,
.perm = AB5500_PERM_RW,
},
{
.first = 0x40,
.last = 0x43,
.perm = AB5500_PERM_RW,
},
{
.first = 0x50,
.last = 0x53,
.perm = AB5500_PERM_RW,
},
{
.first = 0x60,
.last = 0x63,
.perm = AB5500_PERM_RW,
},
{
.first = 0x70,
.last = 0x73,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_VIBRA] = {
.bankid = AB5500_BANK_VIBRA,
.nranges = 2,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x10,
.last = 0x13,
.perm = AB5500_PERM_RW,
},
{
.first = 0xFE,
.last = 0xFE,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_AUDIO_HEADSETUSB] = {
.bankid = AB5500_BANK_AUDIO_HEADSETUSB,
.nranges = 2,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x48,
.perm = AB5500_PERM_RW,
},
{
.first = 0xEB,
.last = 0xFB,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_SIM_USBSIM] = {
.bankid = AB5500_BANK_SIM_USBSIM,
.nranges = 1,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x13,
.last = 0x19,
.perm = AB5500_PERM_RW,
},
},
},
[AB5500_BANK_VDENC] = {
.bankid = AB5500_BANK_VDENC,
.nranges = 12,
.range = (struct ab5500_reg_range[]) {
{
.first = 0x00,
.last = 0x08,
.perm = AB5500_PERM_RW,
},
{
.first = 0x09,
.last = 0x09,
.perm = AB5500_PERM_RO,
},
{
.first = 0x0A,
.last = 0x12,
.perm = AB5500_PERM_RW,
},
{
.first = 0x15,
.last = 0x19,
.perm = AB5500_PERM_RW,
},
{
.first = 0x1B,
.last = 0x21,
.perm = AB5500_PERM_RW,
},
{
.first = 0x27,
.last = 0x2C,
.perm = AB5500_PERM_RW,
},
{
.first = 0x41,
.last = 0x41,
.perm = AB5500_PERM_RW,
},
{
.first = 0x45,
.last = 0x5B,
.perm = AB5500_PERM_RW,
},
{
.first = 0x5D,
.last = 0x5D,
.perm = AB5500_PERM_RW,
},
{
.first = 0x69,
.last = 0x69,
.perm = AB5500_PERM_RW,
},
{
.first = 0x6C,
.last = 0x6D,
.perm = AB5500_PERM_RW,
},
{
.first = 0x80,
.last = 0x81,
.perm = AB5500_PERM_RW,
},
},
},
};
static int ab5500_registers_print(struct seq_file *s, void *p)
{
struct ab5500 *ab = s->private;
unsigned int i;
u8 bank = (u8)ab->debug_bank;
seq_printf(s, "ab5500 register values:\n");
for (bank = 0; bank < AB5500_NUM_BANKS; bank++) {
seq_printf(s, " bank %u, %s (0x%x):\n", bank,
bankinfo[bank].name,
bankinfo[bank].slave_addr);
for (i = 0; i < ab5500_reg_ranges[bank].nranges; i++) {
u8 reg;
int err;
for (reg = ab5500_reg_ranges[bank].range[i].first;
reg <= ab5500_reg_ranges[bank].range[i].last;
reg++) {
u8 value;
err = ab5500_get_register_interruptible_raw(ab,
bank, reg,
&value);
if (err < 0) {
dev_err(ab->dev, "get_reg failed %d"
"bank 0x%x reg 0x%x\n",
err, bank, reg);
return err;
}
err = seq_printf(s, "[%d/0x%02X]: 0x%02X\n",
bank, reg, value);
if (err < 0) {
dev_err(ab->dev,
"seq_printf overflow\n");
/*
* Error is not returned here since
* the output is wanted in any case
*/
return 0;
}
}
}
}
return 0;
}
static int ab5500_registers_open(struct inode *inode, struct file *file)
{
return single_open(file, ab5500_registers_print, inode->i_private);
}
static const struct file_operations ab5500_registers_fops = {
.open = ab5500_registers_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
};
static int ab5500_bank_print(struct seq_file *s, void *p)
{
struct ab5500 *ab = s->private;
seq_printf(s, "%d\n", ab->debug_bank);
return 0;
}
static int ab5500_bank_open(struct inode *inode, struct file *file)
{
return single_open(file, ab5500_bank_print, inode->i_private);
}
static ssize_t ab5500_bank_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private;
char buf[32];
int buf_size;
unsigned long user_bank;
int err;
/* Get userspace string and assure termination */
buf_size = min(count, (sizeof(buf) - 1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
err = strict_strtoul(buf, 0, &user_bank);
if (err)
return -EINVAL;
if (user_bank >= AB5500_NUM_BANKS) {
dev_err(ab->dev,
"debugfs error input > number of banks\n");
return -EINVAL;
}
ab->debug_bank = user_bank;
return buf_size;
}
static int ab5500_address_print(struct seq_file *s, void *p)
{
struct ab5500 *ab = s->private;
seq_printf(s, "0x%02X\n", ab->debug_address);
return 0;
}
static int ab5500_address_open(struct inode *inode, struct file *file)
{
return single_open(file, ab5500_address_print, inode->i_private);
}
static ssize_t ab5500_address_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private;
char buf[32];
int buf_size;
unsigned long user_address;
int err;
/* Get userspace string and assure termination */
buf_size = min(count, (sizeof(buf) - 1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
err = strict_strtoul(buf, 0, &user_address);
if (err)
return -EINVAL;
if (user_address > 0xff) {
dev_err(ab->dev,
"debugfs error input > 0xff\n");
return -EINVAL;
}
ab->debug_address = user_address;
return buf_size;
}
static int ab5500_val_print(struct seq_file *s, void *p)
{
struct ab5500 *ab = s->private;
int err;
u8 regvalue;
err = ab5500_get_register_interruptible_raw(ab, (u8)ab->debug_bank,
(u8)ab->debug_address, &regvalue);
if (err) {
dev_err(ab->dev, "get_reg failed %d, bank 0x%x"
", reg 0x%x\n", err, ab->debug_bank,
ab->debug_address);
return -EINVAL;
}
seq_printf(s, "0x%02X\n", regvalue);
return 0;
}
static int ab5500_val_open(struct inode *inode, struct file *file)
{
return single_open(file, ab5500_val_print, inode->i_private);
}
static ssize_t ab5500_val_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ab5500 *ab = ((struct seq_file *)(file->private_data))->private;
char buf[32];
int buf_size;
unsigned long user_val;
int err;
u8 regvalue;
/* Get userspace string and assure termination */
buf_size = min(count, (sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
err = strict_strtoul(buf, 0, &user_val);
if (err)
return -EINVAL;
if (user_val > 0xff) {
dev_err(ab->dev,
"debugfs error input > 0xff\n");
return -EINVAL;
}
err = ab5500_mask_and_set_register_interruptible_raw(
ab, (u8)ab->debug_bank,
(u8)ab->debug_address, 0xFF, (u8)user_val);
if (err)
return -EINVAL;
ab5500_get_register_interruptible_raw(ab, (u8)ab->debug_bank,
(u8)ab->debug_address, &regvalue);
if (err)
return -EINVAL;
return buf_size;
}
static const struct file_operations ab5500_bank_fops = {
.open = ab5500_bank_open,
.write = ab5500_bank_write,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
};
static const struct file_operations ab5500_address_fops = {
.open = ab5500_address_open,
.write = ab5500_address_write,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
};
static const struct file_operations ab5500_val_fops = {
.open = ab5500_val_open,
.write = ab5500_val_write,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
};
static struct dentry *ab5500_dir;
static struct dentry *ab5500_reg_file;
static struct dentry *ab5500_bank_file;
static struct dentry *ab5500_address_file;
static struct dentry *ab5500_val_file;
void __init ab5500_setup_debugfs(struct ab5500 *ab)
{
ab->debug_bank = AB5500_BANK_VIT_IO_I2C_CLK_TST_OTP;
ab->debug_address = AB5500_CHIP_ID;
ab5500_dir = debugfs_create_dir("ab5500", NULL);
if (!ab5500_dir)
goto exit_no_debugfs;
ab5500_reg_file = debugfs_create_file("all-bank-registers",
S_IRUGO, ab5500_dir, ab, &ab5500_registers_fops);
if (!ab5500_reg_file)
goto exit_destroy_dir;
ab5500_bank_file = debugfs_create_file("register-bank",
(S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_bank_fops);
if (!ab5500_bank_file)
goto exit_destroy_reg;
ab5500_address_file = debugfs_create_file("register-address",
(S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_address_fops);
if (!ab5500_address_file)
goto exit_destroy_bank;
ab5500_val_file = debugfs_create_file("register-value",
(S_IRUGO | S_IWUGO), ab5500_dir, ab, &ab5500_val_fops);
if (!ab5500_val_file)
goto exit_destroy_address;
return;
exit_destroy_address:
debugfs_remove(ab5500_address_file);
exit_destroy_bank:
debugfs_remove(ab5500_bank_file);
exit_destroy_reg:
debugfs_remove(ab5500_reg_file);
exit_destroy_dir:
debugfs_remove(ab5500_dir);
exit_no_debugfs:
dev_err(ab->dev, "failed to create debugfs entries.\n");
return;
}
void __exit ab5500_remove_debugfs(void)
{
debugfs_remove(ab5500_val_file);
debugfs_remove(ab5500_address_file);
debugfs_remove(ab5500_bank_file);
debugfs_remove(ab5500_reg_file);
debugfs_remove(ab5500_dir);
}
drivers/mfd/ab5500-debugfs.h 0 → 100644
View file @ 94be70d4
/*
* Copyright (C) 2011 ST-Ericsson
* License terms: GNU General Public License (GPL) version 2
* Debugfs interface to the AB5500 core driver
*/
#ifdef CONFIG_DEBUG_FS
void ab5500_setup_debugfs(struct ab5500 *ab);
void ab5500_remove_debugfs(void);
#else /* !CONFIG_DEBUG_FS */
static inline void ab5500_setup_debugfs(struct ab5500 *ab)
{
}
static inline void ab5500_remove_debugfs(void)
{
}
#endif
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