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Date: Sat, 12 Feb 2022 22:47:24 +0100
From: Linus Walleij <linus.walleij@...aro.org>
To: Lee Jones <lee.jones@...aro.org>, linux-kernel@...r.kernel.org
Cc: Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH] mfd: ab8500: Drop debugfs module
This debugfs isn't used by anyone, if we want to dump the contents
of registers we should just convert the driver to regmap instead.
I'm also excluding this from the device tree bindings when converting
to YAML because it is not a real device, and device trees should
only contain real physical devices.
Delete it.
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
drivers/mfd/Kconfig | 8 -
drivers/mfd/Makefile | 1 -
drivers/mfd/ab8500-core.c | 20 -
drivers/mfd/ab8500-debugfs.c | 2096 ----------------------------------
4 files changed, 2125 deletions(-)
delete mode 100644 drivers/mfd/ab8500-debugfs.c
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index ba0b3eb131f1..aee5b6b9da45 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1283,14 +1283,6 @@ config AB8500_CORE
the irq_chip parts for handling the Mixed Signal chip events.
This chip embeds various other multimedia functionalities as well.
-config AB8500_DEBUG
- bool "Enable debug info via debugfs"
- depends on AB8500_GPADC && DEBUG_FS
- default y if DEBUG_FS
- help
- Select this option if you want debug information using the debug
- filesystem, debugfs.
-
config MFD_DB8500_PRCMU
bool "ST-Ericsson DB8500 Power Reset Control Management Unit"
depends on UX500_SOC_DB8500
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index df1ecc4a4c95..7e1ca2fef7e0 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -176,7 +176,6 @@ obj-$(CONFIG_MFD_PCF50633) += pcf50633.o
obj-$(CONFIG_PCF50633_ADC) += pcf50633-adc.o
obj-$(CONFIG_PCF50633_GPIO) += pcf50633-gpio.o
obj-$(CONFIG_ABX500_CORE) += abx500-core.o
-obj-$(CONFIG_AB8500_DEBUG) += ab8500-debugfs.o
obj-$(CONFIG_MFD_DB8500_PRCMU) += db8500-prcmu.o
# ab8500-core need to come after db8500-prcmu (which provides the channel)
obj-$(CONFIG_AB8500_CORE) += ab8500-core.o ab8500-sysctrl.o
diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index cca0aac26148..6a059270acdc 100644
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -613,10 +613,6 @@ static const struct mfd_cell ab8500_bm_devs[] = {
};
static const struct mfd_cell ab8500_devs[] = {
-#ifdef CONFIG_DEBUG_FS
- MFD_CELL_OF("ab8500-debug",
- NULL, NULL, 0, 0, "stericsson,ab8500-debug"),
-#endif
MFD_CELL_OF("ab8500-sysctrl",
NULL, NULL, 0, 0, "stericsson,ab8500-sysctrl"),
MFD_CELL_OF("ab8500-ext-regulator",
@@ -652,11 +648,6 @@ static const struct mfd_cell ab8500_devs[] = {
};
static const struct mfd_cell ab9540_devs[] = {
-#ifdef CONFIG_DEBUG_FS
- {
- .name = "ab8500-debug",
- },
-#endif
{
.name = "ab8500-sysctrl",
},
@@ -707,12 +698,6 @@ static const struct mfd_cell ab9540_devs[] = {
/* Device list for ab8505 */
static const struct mfd_cell ab8505_devs[] = {
-#ifdef CONFIG_DEBUG_FS
- {
- .name = "ab8500-debug",
- .of_compatible = "stericsson,ab8500-debug",
- },
-#endif
{
.name = "ab8500-sysctrl",
.of_compatible = "stericsson,ab8500-sysctrl",
@@ -764,11 +749,6 @@ static const struct mfd_cell ab8505_devs[] = {
};
static const struct mfd_cell ab8540_devs[] = {
-#ifdef CONFIG_DEBUG_FS
- {
- .name = "ab8500-debug",
- },
-#endif
{
.name = "ab8500-sysctrl",
},
diff --git a/drivers/mfd/ab8500-debugfs.c b/drivers/mfd/ab8500-debugfs.c
deleted file mode 100644
index e43dea89b094..000000000000
--- a/drivers/mfd/ab8500-debugfs.c
+++ /dev/null
@@ -1,2096 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) ST-Ericsson SA 2010
- *
- * Author: Mattias Wallin <mattias.wallin@...ricsson.com> for ST-Ericsson.
- */
-/*
- * AB8500 register access
- * ======================
- *
- * read:
- * # echo BANK > <debugfs>/ab8500/register-bank
- * # echo ADDR > <debugfs>/ab8500/register-address
- * # cat <debugfs>/ab8500/register-value
- *
- * write:
- * # echo BANK > <debugfs>/ab8500/register-bank
- * # echo ADDR > <debugfs>/ab8500/register-address
- * # echo VALUE > <debugfs>/ab8500/register-value
- *
- * read all registers from a bank:
- * # echo BANK > <debugfs>/ab8500/register-bank
- * # cat <debugfs>/ab8500/all-bank-register
- *
- * BANK target AB8500 register bank
- * ADDR target AB8500 register address
- * VALUE decimal or 0x-prefixed hexadecimal
- *
- *
- * User Space notification on AB8500 IRQ
- * =====================================
- *
- * Allows user space entity to be notified when target AB8500 IRQ occurs.
- * When subscribed, a sysfs entry is created in ab8500.i2c platform device.
- * One can pool this file to get target IRQ occurence information.
- *
- * subscribe to an AB8500 IRQ:
- * # echo IRQ > <debugfs>/ab8500/irq-subscribe
- *
- * unsubscribe from an AB8500 IRQ:
- * # echo IRQ > <debugfs>/ab8500/irq-unsubscribe
- *
- *
- * AB8500 register formated read/write access
- * ==========================================
- *
- * Read: read data, data>>SHIFT, data&=MASK, output data
- * [0xABCDEF98] shift=12 mask=0xFFF => 0x00000CDE
- * Write: read data, data &= ~(MASK<<SHIFT), data |= (VALUE<<SHIFT), write data
- * [0xABCDEF98] shift=12 mask=0xFFF value=0x123 => [0xAB123F98]
- *
- * Usage:
- * # echo "CMD [OPTIONS] BANK ADRESS [VALUE]" > $debugfs/ab8500/hwreg
- *
- * CMD read read access
- * write write access
- *
- * BANK target reg bank
- * ADDRESS target reg address
- * VALUE (write) value to be updated
- *
- * OPTIONS
- * -d|-dec (read) output in decimal
- * -h|-hexa (read) output in 0x-hexa (default)
- * -l|-w|-b 32bit (default), 16bit or 8bit reg access
- * -m|-mask MASK 0x-hexa mask (default 0xFFFFFFFF)
- * -s|-shift SHIFT bit shift value (read:left, write:right)
- * -o|-offset OFFSET address offset to add to ADDRESS value
- *
- * Warning: bit shift operation is applied to bit-mask.
- * Warning: bit shift direction depends on read or right command.
- */
-
-#include <linux/seq_file.h>
-#include <linux/uaccess.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/debugfs.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/kobject.h>
-#include <linux/slab.h>
-#include <linux/irq.h>
-
-#include <linux/mfd/abx500.h>
-#include <linux/mfd/abx500/ab8500.h>
-
-#ifdef CONFIG_DEBUG_FS
-#include <linux/string.h>
-#include <linux/ctype.h>
-#endif
-
-static u32 debug_bank;
-static u32 debug_address;
-
-static int irq_ab8500;
-static int irq_first;
-static int irq_last;
-static u32 *irq_count;
-static int num_irqs;
-
-static struct device_attribute **dev_attr;
-static char **event_name;
-
-/**
- * struct ab8500_reg_range
- * @first: the first address of the range
- * @last: the last address of the range
- * @perm: access permissions for the range
- */
-struct ab8500_reg_range {
- u8 first;
- u8 last;
- u8 perm;
-};
-
-/**
- * struct ab8500_prcmu_ranges
- * @num_ranges: the number of ranges in the list
- * @bankid: bank identifier
- * @range: the list of register ranges
- */
-struct ab8500_prcmu_ranges {
- u8 num_ranges;
- u8 bankid;
- const struct ab8500_reg_range *range;
-};
-
-/* hwreg- "mask" and "shift" entries ressources */
-struct hwreg_cfg {
- u32 bank; /* target bank */
- unsigned long addr; /* target address */
- uint fmt; /* format */
- unsigned long mask; /* read/write mask, applied before any bit shift */
- long shift; /* bit shift (read:right shift, write:left shift */
-};
-/* fmt bit #0: 0=hexa, 1=dec */
-#define REG_FMT_DEC(c) ((c)->fmt & 0x1)
-#define REG_FMT_HEX(c) (!REG_FMT_DEC(c))
-
-static struct hwreg_cfg hwreg_cfg = {
- .addr = 0, /* default: invalid phys addr */
- .fmt = 0, /* default: 32bit access, hex output */
- .mask = 0xFFFFFFFF, /* default: no mask */
- .shift = 0, /* default: no bit shift */
-};
-
-#define AB8500_NAME_STRING "ab8500"
-#define AB8500_NUM_BANKS AB8500_DEBUG_FIELD_LAST
-
-#define AB8500_REV_REG 0x80
-
-static struct ab8500_prcmu_ranges *debug_ranges;
-
-static struct ab8500_prcmu_ranges ab8500_debug_ranges[AB8500_NUM_BANKS] = {
- [AB8500_M_FSM_RANK] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_SYS_CTRL1_BLOCK] = {
- .num_ranges = 3,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x02,
- },
- {
- .first = 0x42,
- .last = 0x42,
- },
- {
- .first = 0x80,
- .last = 0x81,
- },
- },
- },
- [AB8500_SYS_CTRL2_BLOCK] = {
- .num_ranges = 4,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x0D,
- },
- {
- .first = 0x0F,
- .last = 0x17,
- },
- {
- .first = 0x30,
- .last = 0x30,
- },
- {
- .first = 0x32,
- .last = 0x33,
- },
- },
- },
- [AB8500_REGU_CTRL1] = {
- .num_ranges = 3,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x00,
- },
- {
- .first = 0x03,
- .last = 0x10,
- },
- {
- .first = 0x80,
- .last = 0x84,
- },
- },
- },
- [AB8500_REGU_CTRL2] = {
- .num_ranges = 5,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x15,
- },
- {
- .first = 0x17,
- .last = 0x19,
- },
- {
- .first = 0x1B,
- .last = 0x1D,
- },
- {
- .first = 0x1F,
- .last = 0x22,
- },
- {
- .first = 0x40,
- .last = 0x44,
- },
- /*
- * 0x80-0x8B are SIM registers and should
- * not be accessed from here
- */
- },
- },
- [AB8500_USB] = {
- .num_ranges = 2,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x80,
- .last = 0x83,
- },
- {
- .first = 0x87,
- .last = 0x8A,
- },
- },
- },
- [AB8500_TVOUT] = {
- .num_ranges = 9,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x12,
- },
- {
- .first = 0x15,
- .last = 0x17,
- },
- {
- .first = 0x19,
- .last = 0x21,
- },
- {
- .first = 0x27,
- .last = 0x2C,
- },
- {
- .first = 0x41,
- .last = 0x41,
- },
- {
- .first = 0x45,
- .last = 0x5B,
- },
- {
- .first = 0x5D,
- .last = 0x5D,
- },
- {
- .first = 0x69,
- .last = 0x69,
- },
- {
- .first = 0x80,
- .last = 0x81,
- },
- },
- },
- [AB8500_DBI] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_ECI_AV_ACC] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x80,
- .last = 0x82,
- },
- },
- },
- [AB8500_RESERVED] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_GPADC] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x08,
- },
- },
- },
- [AB8500_CHARGER] = {
- .num_ranges = 9,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x03,
- },
- {
- .first = 0x05,
- .last = 0x05,
- },
- {
- .first = 0x40,
- .last = 0x40,
- },
- {
- .first = 0x42,
- .last = 0x42,
- },
- {
- .first = 0x44,
- .last = 0x44,
- },
- {
- .first = 0x50,
- .last = 0x55,
- },
- {
- .first = 0x80,
- .last = 0x82,
- },
- {
- .first = 0xC0,
- .last = 0xC2,
- },
- {
- .first = 0xf5,
- .last = 0xf6,
- },
- },
- },
- [AB8500_GAS_GAUGE] = {
- .num_ranges = 3,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x00,
- },
- {
- .first = 0x07,
- .last = 0x0A,
- },
- {
- .first = 0x10,
- .last = 0x14,
- },
- },
- },
- [AB8500_AUDIO] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x6F,
- },
- },
- },
- [AB8500_INTERRUPT] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_RTC] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x0F,
- },
- },
- },
- [AB8500_MISC] = {
- .num_ranges = 8,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x05,
- },
- {
- .first = 0x10,
- .last = 0x15,
- },
- {
- .first = 0x20,
- .last = 0x25,
- },
- {
- .first = 0x30,
- .last = 0x35,
- },
- {
- .first = 0x40,
- .last = 0x45,
- },
- {
- .first = 0x50,
- .last = 0x50,
- },
- {
- .first = 0x60,
- .last = 0x67,
- },
- {
- .first = 0x80,
- .last = 0x80,
- },
- },
- },
- [AB8500_DEVELOPMENT] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x00,
- },
- },
- },
- [AB8500_DEBUG] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x05,
- .last = 0x07,
- },
- },
- },
- [AB8500_PROD_TEST] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_STE_TEST] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_OTP_EMUL] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x01,
- .last = 0x0F,
- },
- },
- },
-};
-
-static struct ab8500_prcmu_ranges ab8505_debug_ranges[AB8500_NUM_BANKS] = {
- [0x0] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_SYS_CTRL1_BLOCK] = {
- .num_ranges = 5,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x04,
- },
- {
- .first = 0x42,
- .last = 0x42,
- },
- {
- .first = 0x52,
- .last = 0x52,
- },
- {
- .first = 0x54,
- .last = 0x57,
- },
- {
- .first = 0x80,
- .last = 0x83,
- },
- },
- },
- [AB8500_SYS_CTRL2_BLOCK] = {
- .num_ranges = 5,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x0D,
- },
- {
- .first = 0x0F,
- .last = 0x17,
- },
- {
- .first = 0x20,
- .last = 0x20,
- },
- {
- .first = 0x30,
- .last = 0x30,
- },
- {
- .first = 0x32,
- .last = 0x3A,
- },
- },
- },
- [AB8500_REGU_CTRL1] = {
- .num_ranges = 3,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x00,
- },
- {
- .first = 0x03,
- .last = 0x11,
- },
- {
- .first = 0x80,
- .last = 0x86,
- },
- },
- },
- [AB8500_REGU_CTRL2] = {
- .num_ranges = 6,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x06,
- },
- {
- .first = 0x08,
- .last = 0x15,
- },
- {
- .first = 0x17,
- .last = 0x19,
- },
- {
- .first = 0x1B,
- .last = 0x1D,
- },
- {
- .first = 0x1F,
- .last = 0x30,
- },
- {
- .first = 0x40,
- .last = 0x48,
- },
- /*
- * 0x80-0x8B are SIM registers and should
- * not be accessed from here
- */
- },
- },
- [AB8500_USB] = {
- .num_ranges = 3,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x80,
- .last = 0x83,
- },
- {
- .first = 0x87,
- .last = 0x8A,
- },
- {
- .first = 0x91,
- .last = 0x94,
- },
- },
- },
- [AB8500_TVOUT] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_DBI] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_ECI_AV_ACC] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x80,
- .last = 0x82,
- },
- },
- },
- [AB8500_RESERVED] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_GPADC] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x08,
- },
- },
- },
- [AB8500_CHARGER] = {
- .num_ranges = 9,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x02,
- .last = 0x03,
- },
- {
- .first = 0x05,
- .last = 0x05,
- },
- {
- .first = 0x40,
- .last = 0x44,
- },
- {
- .first = 0x50,
- .last = 0x57,
- },
- {
- .first = 0x60,
- .last = 0x60,
- },
- {
- .first = 0xA0,
- .last = 0xA7,
- },
- {
- .first = 0xAF,
- .last = 0xB2,
- },
- {
- .first = 0xC0,
- .last = 0xC2,
- },
- {
- .first = 0xF5,
- .last = 0xF5,
- },
- },
- },
- [AB8500_GAS_GAUGE] = {
- .num_ranges = 3,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x00,
- },
- {
- .first = 0x07,
- .last = 0x0A,
- },
- {
- .first = 0x10,
- .last = 0x14,
- },
- },
- },
- [AB8500_AUDIO] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x83,
- },
- },
- },
- [AB8500_INTERRUPT] = {
- .num_ranges = 11,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x04,
- },
- {
- .first = 0x06,
- .last = 0x07,
- },
- {
- .first = 0x09,
- .last = 0x09,
- },
- {
- .first = 0x0B,
- .last = 0x0C,
- },
- {
- .first = 0x12,
- .last = 0x15,
- },
- {
- .first = 0x18,
- .last = 0x18,
- },
- /* Latch registers should not be read here */
- {
- .first = 0x40,
- .last = 0x44,
- },
- {
- .first = 0x46,
- .last = 0x49,
- },
- {
- .first = 0x4B,
- .last = 0x4D,
- },
- {
- .first = 0x52,
- .last = 0x55,
- },
- {
- .first = 0x58,
- .last = 0x58,
- },
- /* LatchHier registers should not be read here */
- },
- },
- [AB8500_RTC] = {
- .num_ranges = 2,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x14,
- },
- {
- .first = 0x16,
- .last = 0x17,
- },
- },
- },
- [AB8500_MISC] = {
- .num_ranges = 8,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x06,
- },
- {
- .first = 0x10,
- .last = 0x16,
- },
- {
- .first = 0x20,
- .last = 0x26,
- },
- {
- .first = 0x30,
- .last = 0x36,
- },
- {
- .first = 0x40,
- .last = 0x46,
- },
- {
- .first = 0x50,
- .last = 0x50,
- },
- {
- .first = 0x60,
- .last = 0x6B,
- },
- {
- .first = 0x80,
- .last = 0x82,
- },
- },
- },
- [AB8500_DEVELOPMENT] = {
- .num_ranges = 2,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x00,
- },
- {
- .first = 0x05,
- .last = 0x05,
- },
- },
- },
- [AB8500_DEBUG] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x05,
- .last = 0x07,
- },
- },
- },
- [AB8500_PROD_TEST] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_STE_TEST] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_OTP_EMUL] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x01,
- .last = 0x15,
- },
- },
- },
-};
-
-static struct ab8500_prcmu_ranges ab8540_debug_ranges[AB8500_NUM_BANKS] = {
- [AB8500_M_FSM_RANK] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x0B,
- },
- },
- },
- [AB8500_SYS_CTRL1_BLOCK] = {
- .num_ranges = 6,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x04,
- },
- {
- .first = 0x42,
- .last = 0x42,
- },
- {
- .first = 0x50,
- .last = 0x54,
- },
- {
- .first = 0x57,
- .last = 0x57,
- },
- {
- .first = 0x80,
- .last = 0x83,
- },
- {
- .first = 0x90,
- .last = 0x90,
- },
- },
- },
- [AB8500_SYS_CTRL2_BLOCK] = {
- .num_ranges = 5,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x0D,
- },
- {
- .first = 0x0F,
- .last = 0x10,
- },
- {
- .first = 0x20,
- .last = 0x21,
- },
- {
- .first = 0x32,
- .last = 0x3C,
- },
- {
- .first = 0x40,
- .last = 0x42,
- },
- },
- },
- [AB8500_REGU_CTRL1] = {
- .num_ranges = 4,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x03,
- .last = 0x15,
- },
- {
- .first = 0x20,
- .last = 0x20,
- },
- {
- .first = 0x80,
- .last = 0x85,
- },
- {
- .first = 0x87,
- .last = 0x88,
- },
- },
- },
- [AB8500_REGU_CTRL2] = {
- .num_ranges = 8,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x06,
- },
- {
- .first = 0x08,
- .last = 0x15,
- },
- {
- .first = 0x17,
- .last = 0x19,
- },
- {
- .first = 0x1B,
- .last = 0x1D,
- },
- {
- .first = 0x1F,
- .last = 0x2F,
- },
- {
- .first = 0x31,
- .last = 0x3A,
- },
- {
- .first = 0x43,
- .last = 0x44,
- },
- {
- .first = 0x48,
- .last = 0x49,
- },
- },
- },
- [AB8500_USB] = {
- .num_ranges = 3,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x80,
- .last = 0x83,
- },
- {
- .first = 0x87,
- .last = 0x8A,
- },
- {
- .first = 0x91,
- .last = 0x94,
- },
- },
- },
- [AB8500_TVOUT] = {
- .num_ranges = 0,
- .range = NULL
- },
- [AB8500_DBI] = {
- .num_ranges = 4,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x07,
- },
- {
- .first = 0x10,
- .last = 0x11,
- },
- {
- .first = 0x20,
- .last = 0x21,
- },
- {
- .first = 0x30,
- .last = 0x43,
- },
- },
- },
- [AB8500_ECI_AV_ACC] = {
- .num_ranges = 2,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x03,
- },
- {
- .first = 0x80,
- .last = 0x82,
- },
- },
- },
- [AB8500_RESERVED] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_GPADC] = {
- .num_ranges = 4,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x01,
- },
- {
- .first = 0x04,
- .last = 0x06,
- },
- {
- .first = 0x09,
- .last = 0x0A,
- },
- {
- .first = 0x10,
- .last = 0x14,
- },
- },
- },
- [AB8500_CHARGER] = {
- .num_ranges = 10,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x00,
- },
- {
- .first = 0x02,
- .last = 0x05,
- },
- {
- .first = 0x40,
- .last = 0x44,
- },
- {
- .first = 0x50,
- .last = 0x57,
- },
- {
- .first = 0x60,
- .last = 0x60,
- },
- {
- .first = 0x70,
- .last = 0x70,
- },
- {
- .first = 0xA0,
- .last = 0xA9,
- },
- {
- .first = 0xAF,
- .last = 0xB2,
- },
- {
- .first = 0xC0,
- .last = 0xC6,
- },
- {
- .first = 0xF5,
- .last = 0xF5,
- },
- },
- },
- [AB8500_GAS_GAUGE] = {
- .num_ranges = 3,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x00,
- },
- {
- .first = 0x07,
- .last = 0x0A,
- },
- {
- .first = 0x10,
- .last = 0x14,
- },
- },
- },
- [AB8500_AUDIO] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x9f,
- },
- },
- },
- [AB8500_INTERRUPT] = {
- .num_ranges = 6,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x05,
- },
- {
- .first = 0x0B,
- .last = 0x0D,
- },
- {
- .first = 0x12,
- .last = 0x20,
- },
- /* Latch registers should not be read here */
- {
- .first = 0x40,
- .last = 0x45,
- },
- {
- .first = 0x4B,
- .last = 0x4D,
- },
- {
- .first = 0x52,
- .last = 0x60,
- },
- /* LatchHier registers should not be read here */
- },
- },
- [AB8500_RTC] = {
- .num_ranges = 3,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x07,
- },
- {
- .first = 0x0B,
- .last = 0x18,
- },
- {
- .first = 0x20,
- .last = 0x25,
- },
- },
- },
- [AB8500_MISC] = {
- .num_ranges = 9,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x06,
- },
- {
- .first = 0x10,
- .last = 0x16,
- },
- {
- .first = 0x20,
- .last = 0x26,
- },
- {
- .first = 0x30,
- .last = 0x36,
- },
- {
- .first = 0x40,
- .last = 0x49,
- },
- {
- .first = 0x50,
- .last = 0x50,
- },
- {
- .first = 0x60,
- .last = 0x6B,
- },
- {
- .first = 0x70,
- .last = 0x74,
- },
- {
- .first = 0x80,
- .last = 0x82,
- },
- },
- },
- [AB8500_DEVELOPMENT] = {
- .num_ranges = 3,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x01,
- },
- {
- .first = 0x06,
- .last = 0x06,
- },
- {
- .first = 0x10,
- .last = 0x21,
- },
- },
- },
- [AB8500_DEBUG] = {
- .num_ranges = 3,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x01,
- .last = 0x0C,
- },
- {
- .first = 0x0E,
- .last = 0x11,
- },
- {
- .first = 0x80,
- .last = 0x81,
- },
- },
- },
- [AB8500_PROD_TEST] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_STE_TEST] = {
- .num_ranges = 0,
- .range = NULL,
- },
- [AB8500_OTP_EMUL] = {
- .num_ranges = 1,
- .range = (struct ab8500_reg_range[]) {
- {
- .first = 0x00,
- .last = 0x3F,
- },
- },
- },
-};
-
-static irqreturn_t ab8500_debug_handler(int irq, void *data)
-{
- char buf[16];
- struct kobject *kobj = (struct kobject *)data;
- unsigned int irq_abb = irq - irq_first;
-
- if (irq_abb < num_irqs)
- irq_count[irq_abb]++;
- /*
- * This makes it possible to use poll for events (EPOLLPRI | EPOLLERR)
- * from userspace on sysfs file named <irq-nr>
- */
- sprintf(buf, "%d", irq);
- sysfs_notify(kobj, NULL, buf);
-
- return IRQ_HANDLED;
-}
-
-/* Prints to seq_file or log_buf */
-static int ab8500_registers_print(struct device *dev, u32 bank,
- struct seq_file *s)
-{
- unsigned int i;
-
- for (i = 0; i < debug_ranges[bank].num_ranges; i++) {
- u32 reg;
-
- for (reg = debug_ranges[bank].range[i].first;
- reg <= debug_ranges[bank].range[i].last;
- reg++) {
- u8 value;
- int err;
-
- err = abx500_get_register_interruptible(dev,
- (u8)bank, (u8)reg, &value);
- if (err < 0) {
- dev_err(dev, "ab->read fail %d\n", err);
- return err;
- }
-
- if (s) {
- seq_printf(s, " [0x%02X/0x%02X]: 0x%02X\n",
- bank, reg, value);
- /*
- * Error is not returned here since
- * the output is wanted in any case
- */
- if (seq_has_overflowed(s))
- return 0;
- } else {
- dev_info(dev, " [0x%02X/0x%02X]: 0x%02X\n",
- bank, reg, value);
- }
- }
- }
-
- return 0;
-}
-
-static int ab8500_bank_registers_show(struct seq_file *s, void *p)
-{
- struct device *dev = s->private;
- u32 bank = debug_bank;
-
- seq_puts(s, AB8500_NAME_STRING " register values:\n");
-
- seq_printf(s, " bank 0x%02X:\n", bank);
-
- return ab8500_registers_print(dev, bank, s);
-}
-
-DEFINE_SHOW_ATTRIBUTE(ab8500_bank_registers);
-
-static int ab8500_print_all_banks(struct seq_file *s, void *p)
-{
- struct device *dev = s->private;
- unsigned int i;
-
- seq_puts(s, AB8500_NAME_STRING " register values:\n");
-
- for (i = 0; i < AB8500_NUM_BANKS; i++) {
- int err;
-
- seq_printf(s, " bank 0x%02X:\n", i);
- err = ab8500_registers_print(dev, i, s);
- if (err)
- return err;
- }
- return 0;
-}
-
-/* Dump registers to kernel log */
-void ab8500_dump_all_banks(struct device *dev)
-{
- unsigned int i;
-
- dev_info(dev, "ab8500 register values:\n");
-
- for (i = 1; i < AB8500_NUM_BANKS; i++) {
- dev_info(dev, " bank 0x%02X:\n", i);
- ab8500_registers_print(dev, i, NULL);
- }
-}
-
-static int ab8500_all_banks_open(struct inode *inode, struct file *file)
-{
- struct seq_file *s;
- int err;
-
- err = single_open(file, ab8500_print_all_banks, inode->i_private);
- if (!err) {
- /* Default buf size in seq_read is not enough */
- s = (struct seq_file *)file->private_data;
- s->size = (PAGE_SIZE * 2);
- s->buf = kmalloc(s->size, GFP_KERNEL);
- if (!s->buf) {
- single_release(inode, file);
- err = -ENOMEM;
- }
- }
- return err;
-}
-
-static const struct file_operations ab8500_all_banks_fops = {
- .open = ab8500_all_banks_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static int ab8500_bank_print(struct seq_file *s, void *p)
-{
- seq_printf(s, "0x%02X\n", debug_bank);
- return 0;
-}
-
-static int ab8500_bank_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ab8500_bank_print, inode->i_private);
-}
-
-static ssize_t ab8500_bank_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct device *dev = ((struct seq_file *)(file->private_data))->private;
- unsigned long user_bank;
- int err;
-
- err = kstrtoul_from_user(user_buf, count, 0, &user_bank);
- if (err)
- return err;
-
- if (user_bank >= AB8500_NUM_BANKS) {
- dev_err(dev, "debugfs error input > number of banks\n");
- return -EINVAL;
- }
-
- debug_bank = user_bank;
-
- return count;
-}
-
-static int ab8500_address_print(struct seq_file *s, void *p)
-{
- seq_printf(s, "0x%02X\n", debug_address);
- return 0;
-}
-
-static int ab8500_address_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ab8500_address_print, inode->i_private);
-}
-
-static ssize_t ab8500_address_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct device *dev = ((struct seq_file *)(file->private_data))->private;
- unsigned long user_address;
- int err;
-
- err = kstrtoul_from_user(user_buf, count, 0, &user_address);
- if (err)
- return err;
-
- if (user_address > 0xff) {
- dev_err(dev, "debugfs error input > 0xff\n");
- return -EINVAL;
- }
- debug_address = user_address;
-
- return count;
-}
-
-static int ab8500_val_print(struct seq_file *s, void *p)
-{
- struct device *dev = s->private;
- int ret;
- u8 regvalue;
-
- ret = abx500_get_register_interruptible(dev,
- (u8)debug_bank, (u8)debug_address, ®value);
- if (ret < 0) {
- dev_err(dev, "abx500_get_reg fail %d, %d\n",
- ret, __LINE__);
- return -EINVAL;
- }
- seq_printf(s, "0x%02X\n", regvalue);
-
- return 0;
-}
-
-static int ab8500_val_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ab8500_val_print, inode->i_private);
-}
-
-static ssize_t ab8500_val_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct device *dev = ((struct seq_file *)(file->private_data))->private;
- unsigned long user_val;
- int err;
-
- err = kstrtoul_from_user(user_buf, count, 0, &user_val);
- if (err)
- return err;
-
- if (user_val > 0xff) {
- dev_err(dev, "debugfs error input > 0xff\n");
- return -EINVAL;
- }
- err = abx500_set_register_interruptible(dev,
- (u8)debug_bank, debug_address, (u8)user_val);
- if (err < 0) {
- pr_err("abx500_set_reg failed %d, %d", err, __LINE__);
- return -EINVAL;
- }
-
- return count;
-}
-
-/*
- * Interrupt status
- */
-static u32 num_interrupts[AB8500_MAX_NR_IRQS];
-static u32 num_wake_interrupts[AB8500_MAX_NR_IRQS];
-static int num_interrupt_lines;
-
-void ab8500_debug_register_interrupt(int line)
-{
- if (line < num_interrupt_lines)
- num_interrupts[line]++;
-}
-
-static int ab8500_interrupts_show(struct seq_file *s, void *p)
-{
- int line;
-
- seq_puts(s, "name: number: irq: number of: wake:\n");
-
- for (line = 0; line < num_interrupt_lines; line++) {
- seq_printf(s, "%3i: %4i %6i %4i\n",
- line,
- line + irq_first,
- num_interrupts[line],
- num_wake_interrupts[line]);
- }
-
- return 0;
-}
-
-DEFINE_SHOW_ATTRIBUTE(ab8500_interrupts);
-
-/*
- * - HWREG DB8500 formated routines
- */
-static int ab8500_hwreg_print(struct seq_file *s, void *d)
-{
- struct device *dev = s->private;
- int ret;
- u8 regvalue;
-
- ret = abx500_get_register_interruptible(dev,
- (u8)hwreg_cfg.bank, (u8)hwreg_cfg.addr, ®value);
- if (ret < 0) {
- dev_err(dev, "abx500_get_reg fail %d, %d\n",
- ret, __LINE__);
- return -EINVAL;
- }
-
- if (hwreg_cfg.shift >= 0)
- regvalue >>= hwreg_cfg.shift;
- else
- regvalue <<= -hwreg_cfg.shift;
- regvalue &= hwreg_cfg.mask;
-
- if (REG_FMT_DEC(&hwreg_cfg))
- seq_printf(s, "%d\n", regvalue);
- else
- seq_printf(s, "0x%02X\n", regvalue);
- return 0;
-}
-
-static int ab8500_hwreg_open(struct inode *inode, struct file *file)
-{
- return single_open(file, ab8500_hwreg_print, inode->i_private);
-}
-
-#define AB8500_SUPPLY_CONTROL_CONFIG_1 0x01
-#define AB8500_SUPPLY_CONTROL_REG 0x00
-#define AB8500_FIRST_SIM_REG 0x80
-#define AB8500_LAST_SIM_REG 0x8B
-#define AB8505_LAST_SIM_REG 0x8C
-
-static int ab8500_modem_show(struct seq_file *s, void *p)
-{
- struct device *dev = s->private;
- struct ab8500 *ab8500;
- int err;
- u8 value;
- u8 orig_value;
- u32 bank = AB8500_REGU_CTRL2;
- u32 last_sim_reg = AB8500_LAST_SIM_REG;
- u32 reg;
-
- ab8500 = dev_get_drvdata(dev->parent);
- dev_warn(dev, "WARNING! This operation can interfer with modem side\n"
- "and should only be done with care\n");
-
- err = abx500_get_register_interruptible(dev,
- AB8500_REGU_CTRL1, AB8500_SUPPLY_CONTROL_REG, &orig_value);
- if (err < 0)
- goto report_read_failure;
-
- /* Config 1 will allow APE side to read SIM registers */
- err = abx500_set_register_interruptible(dev,
- AB8500_REGU_CTRL1, AB8500_SUPPLY_CONTROL_REG,
- AB8500_SUPPLY_CONTROL_CONFIG_1);
- if (err < 0)
- goto report_write_failure;
-
- seq_printf(s, " bank 0x%02X:\n", bank);
-
- if (is_ab9540(ab8500) || is_ab8505(ab8500))
- last_sim_reg = AB8505_LAST_SIM_REG;
-
- for (reg = AB8500_FIRST_SIM_REG; reg <= last_sim_reg; reg++) {
- err = abx500_get_register_interruptible(dev,
- bank, reg, &value);
- if (err < 0)
- goto report_read_failure;
-
- seq_printf(s, " [0x%02X/0x%02X]: 0x%02X\n", bank, reg, value);
- }
- err = abx500_set_register_interruptible(dev,
- AB8500_REGU_CTRL1, AB8500_SUPPLY_CONTROL_REG, orig_value);
- if (err < 0)
- goto report_write_failure;
-
- return 0;
-
-report_read_failure:
- dev_err(dev, "ab->read fail %d\n", err);
- return err;
-
-report_write_failure:
- dev_err(dev, "ab->write fail %d\n", err);
- return err;
-}
-
-DEFINE_SHOW_ATTRIBUTE(ab8500_modem);
-
-/*
- * return length of an ASCII numerical value, 0 is string is not a
- * numerical value.
- * string shall start at value 1st char.
- * string can be tailed with \0 or space or newline chars only.
- * value can be decimal or hexadecimal (prefixed 0x or 0X).
- */
-static int strval_len(char *b)
-{
- char *s = b;
-
- if ((*s == '0') && ((*(s+1) == 'x') || (*(s+1) == 'X'))) {
- s += 2;
- for (; *s && (*s != ' ') && (*s != '\n'); s++) {
- if (!isxdigit(*s))
- return 0;
- }
- } else {
- if (*s == '-')
- s++;
- for (; *s && (*s != ' ') && (*s != '\n'); s++) {
- if (!isdigit(*s))
- return 0;
- }
- }
- return (int) (s-b);
-}
-
-/*
- * parse hwreg input data.
- * update global hwreg_cfg only if input data syntax is ok.
- */
-static ssize_t hwreg_common_write(char *b, struct hwreg_cfg *cfg,
- struct device *dev)
-{
- uint write, val = 0;
- u8 regvalue;
- int ret;
- struct hwreg_cfg loc = {
- .bank = 0, /* default: invalid phys addr */
- .addr = 0, /* default: invalid phys addr */
- .fmt = 0, /* default: 32bit access, hex output */
- .mask = 0xFFFFFFFF, /* default: no mask */
- .shift = 0, /* default: no bit shift */
- };
-
- /* read or write ? */
- if (!strncmp(b, "read ", 5)) {
- write = 0;
- b += 5;
- } else if (!strncmp(b, "write ", 6)) {
- write = 1;
- b += 6;
- } else
- return -EINVAL;
-
- /* OPTIONS -l|-w|-b -s -m -o */
- while ((*b == ' ') || (*b == '-')) {
- if (*(b-1) != ' ') {
- b++;
- continue;
- }
- if ((!strncmp(b, "-d ", 3)) ||
- (!strncmp(b, "-dec ", 5))) {
- b += (*(b+2) == ' ') ? 3 : 5;
- loc.fmt |= (1<<0);
- } else if ((!strncmp(b, "-h ", 3)) ||
- (!strncmp(b, "-hex ", 5))) {
- b += (*(b+2) == ' ') ? 3 : 5;
- loc.fmt &= ~(1<<0);
- } else if ((!strncmp(b, "-m ", 3)) ||
- (!strncmp(b, "-mask ", 6))) {
- b += (*(b+2) == ' ') ? 3 : 6;
- if (strval_len(b) == 0)
- return -EINVAL;
- ret = kstrtoul(b, 0, &loc.mask);
- if (ret)
- return ret;
- } else if ((!strncmp(b, "-s ", 3)) ||
- (!strncmp(b, "-shift ", 7))) {
- b += (*(b+2) == ' ') ? 3 : 7;
- if (strval_len(b) == 0)
- return -EINVAL;
- ret = kstrtol(b, 0, &loc.shift);
- if (ret)
- return ret;
- } else {
- return -EINVAL;
- }
- }
- /* get arg BANK and ADDRESS */
- if (strval_len(b) == 0)
- return -EINVAL;
- ret = kstrtouint(b, 0, &loc.bank);
- if (ret)
- return ret;
- while (*b == ' ')
- b++;
- if (strval_len(b) == 0)
- return -EINVAL;
- ret = kstrtoul(b, 0, &loc.addr);
- if (ret)
- return ret;
-
- if (write) {
- while (*b == ' ')
- b++;
- if (strval_len(b) == 0)
- return -EINVAL;
- ret = kstrtouint(b, 0, &val);
- if (ret)
- return ret;
- }
-
- /* args are ok, update target cfg (mainly for read) */
- *cfg = loc;
-
-#ifdef ABB_HWREG_DEBUG
- pr_warn("HWREG request: %s, %s,\n", (write) ? "write" : "read",
- REG_FMT_DEC(cfg) ? "decimal" : "hexa");
- pr_warn(" addr=0x%08X, mask=0x%X, shift=%d" "value=0x%X\n",
- cfg->addr, cfg->mask, cfg->shift, val);
-#endif
-
- if (!write)
- return 0;
-
- ret = abx500_get_register_interruptible(dev,
- (u8)cfg->bank, (u8)cfg->addr, ®value);
- if (ret < 0) {
- dev_err(dev, "abx500_get_reg fail %d, %d\n",
- ret, __LINE__);
- return -EINVAL;
- }
-
- if (cfg->shift >= 0) {
- regvalue &= ~(cfg->mask << (cfg->shift));
- val = (val & cfg->mask) << (cfg->shift);
- } else {
- regvalue &= ~(cfg->mask >> (-cfg->shift));
- val = (val & cfg->mask) >> (-cfg->shift);
- }
- val = val | regvalue;
-
- ret = abx500_set_register_interruptible(dev,
- (u8)cfg->bank, (u8)cfg->addr, (u8)val);
- if (ret < 0) {
- pr_err("abx500_set_reg failed %d, %d", ret, __LINE__);
- return -EINVAL;
- }
-
- return 0;
-}
-
-static ssize_t ab8500_hwreg_write(struct file *file,
- const char __user *user_buf, size_t count, loff_t *ppos)
-{
- struct device *dev = ((struct seq_file *)(file->private_data))->private;
- char buf[128];
- int buf_size, ret;
-
- /* Get userspace string and assure termination */
- buf_size = min((int)count, (int)(sizeof(buf)-1));
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
- buf[buf_size] = 0;
-
- /* get args and process */
- ret = hwreg_common_write(buf, &hwreg_cfg, dev);
- return (ret) ? ret : buf_size;
-}
-
-/*
- * - irq subscribe/unsubscribe stuff
- */
-static int ab8500_subscribe_unsubscribe_print(struct seq_file *s, void *p)
-{
- seq_printf(s, "%d\n", irq_first);
-
- return 0;
-}
-
-static int ab8500_subscribe_unsubscribe_open(struct inode *inode,
- struct file *file)
-{
- return single_open(file, ab8500_subscribe_unsubscribe_print,
- inode->i_private);
-}
-
-/*
- * Userspace should use poll() on this file. When an event occur
- * the blocking poll will be released.
- */
-static ssize_t show_irq(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- unsigned long name;
- unsigned int irq_index;
- int err;
-
- err = kstrtoul(attr->attr.name, 0, &name);
- if (err)
- return err;
-
- irq_index = name - irq_first;
- if (irq_index >= num_irqs)
- return -EINVAL;
-
- return sprintf(buf, "%u\n", irq_count[irq_index]);
-}
-
-static ssize_t ab8500_subscribe_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct device *dev = ((struct seq_file *)(file->private_data))->private;
- unsigned long user_val;
- int err;
- unsigned int irq_index;
-
- err = kstrtoul_from_user(user_buf, count, 0, &user_val);
- if (err)
- return err;
-
- if (user_val < irq_first) {
- dev_err(dev, "debugfs error input < %d\n", irq_first);
- return -EINVAL;
- }
- if (user_val > irq_last) {
- dev_err(dev, "debugfs error input > %d\n", irq_last);
- return -EINVAL;
- }
-
- irq_index = user_val - irq_first;
- if (irq_index >= num_irqs)
- return -EINVAL;
-
- /*
- * This will create a sysfs file named <irq-nr> which userspace can
- * use to select or poll and get the AB8500 events
- */
- dev_attr[irq_index] = kmalloc(sizeof(struct device_attribute),
- GFP_KERNEL);
- if (!dev_attr[irq_index])
- return -ENOMEM;
-
- event_name[irq_index] = kasprintf(GFP_KERNEL, "%lu", user_val);
- if (!event_name[irq_index])
- return -ENOMEM;
-
- dev_attr[irq_index]->show = show_irq;
- dev_attr[irq_index]->store = NULL;
- dev_attr[irq_index]->attr.name = event_name[irq_index];
- dev_attr[irq_index]->attr.mode = S_IRUGO;
- err = sysfs_create_file(&dev->kobj, &dev_attr[irq_index]->attr);
- if (err < 0) {
- pr_info("sysfs_create_file failed %d\n", err);
- return err;
- }
-
- err = request_threaded_irq(user_val, NULL, ab8500_debug_handler,
- IRQF_SHARED | IRQF_NO_SUSPEND | IRQF_ONESHOT,
- "ab8500-debug", &dev->kobj);
- if (err < 0) {
- pr_info("request_threaded_irq failed %d, %lu\n",
- err, user_val);
- sysfs_remove_file(&dev->kobj, &dev_attr[irq_index]->attr);
- return err;
- }
-
- return count;
-}
-
-static ssize_t ab8500_unsubscribe_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct device *dev = ((struct seq_file *)(file->private_data))->private;
- unsigned long user_val;
- int err;
- unsigned int irq_index;
-
- err = kstrtoul_from_user(user_buf, count, 0, &user_val);
- if (err)
- return err;
-
- if (user_val < irq_first) {
- dev_err(dev, "debugfs error input < %d\n", irq_first);
- return -EINVAL;
- }
- if (user_val > irq_last) {
- dev_err(dev, "debugfs error input > %d\n", irq_last);
- return -EINVAL;
- }
-
- irq_index = user_val - irq_first;
- if (irq_index >= num_irqs)
- return -EINVAL;
-
- /* Set irq count to 0 when unsubscribe */
- irq_count[irq_index] = 0;
-
- if (dev_attr[irq_index])
- sysfs_remove_file(&dev->kobj, &dev_attr[irq_index]->attr);
-
-
- free_irq(user_val, &dev->kobj);
- kfree(event_name[irq_index]);
- kfree(dev_attr[irq_index]);
-
- return count;
-}
-
-/*
- * - several debugfs nodes fops
- */
-
-static const struct file_operations ab8500_bank_fops = {
- .open = ab8500_bank_open,
- .write = ab8500_bank_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static const struct file_operations ab8500_address_fops = {
- .open = ab8500_address_open,
- .write = ab8500_address_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static const struct file_operations ab8500_val_fops = {
- .open = ab8500_val_open,
- .write = ab8500_val_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static const struct file_operations ab8500_subscribe_fops = {
- .open = ab8500_subscribe_unsubscribe_open,
- .write = ab8500_subscribe_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static const struct file_operations ab8500_unsubscribe_fops = {
- .open = ab8500_subscribe_unsubscribe_open,
- .write = ab8500_unsubscribe_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static const struct file_operations ab8500_hwreg_fops = {
- .open = ab8500_hwreg_open,
- .write = ab8500_hwreg_write,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
-
-static int ab8500_debug_probe(struct platform_device *plf)
-{
- struct dentry *ab8500_dir;
- struct ab8500 *ab8500;
- struct resource *res;
-
- debug_bank = AB8500_MISC;
- debug_address = AB8500_REV_REG & 0x00FF;
-
- ab8500 = dev_get_drvdata(plf->dev.parent);
- num_irqs = ab8500->mask_size;
-
- irq_count = devm_kcalloc(&plf->dev,
- num_irqs, sizeof(*irq_count), GFP_KERNEL);
- if (!irq_count)
- return -ENOMEM;
-
- dev_attr = devm_kcalloc(&plf->dev,
- num_irqs, sizeof(*dev_attr), GFP_KERNEL);
- if (!dev_attr)
- return -ENOMEM;
-
- event_name = devm_kcalloc(&plf->dev,
- num_irqs, sizeof(*event_name), GFP_KERNEL);
- if (!event_name)
- return -ENOMEM;
-
- res = platform_get_resource_byname(plf, 0, "IRQ_AB8500");
- if (!res) {
- dev_err(&plf->dev, "AB8500 irq not found, err %d\n", irq_first);
- return -ENXIO;
- }
- irq_ab8500 = res->start;
-
- irq_first = platform_get_irq_byname(plf, "IRQ_FIRST");
- if (irq_first < 0)
- return irq_first;
-
- irq_last = platform_get_irq_byname(plf, "IRQ_LAST");
- if (irq_last < 0)
- return irq_last;
-
- ab8500_dir = debugfs_create_dir(AB8500_NAME_STRING, NULL);
-
- debugfs_create_file("all-bank-registers", S_IRUGO, ab8500_dir,
- &plf->dev, &ab8500_bank_registers_fops);
- debugfs_create_file("all-banks", S_IRUGO, ab8500_dir,
- &plf->dev, &ab8500_all_banks_fops);
- debugfs_create_file("register-bank", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_dir, &plf->dev, &ab8500_bank_fops);
- debugfs_create_file("register-address", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_dir, &plf->dev, &ab8500_address_fops);
- debugfs_create_file("register-value", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_dir, &plf->dev, &ab8500_val_fops);
- debugfs_create_file("irq-subscribe", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_dir, &plf->dev, &ab8500_subscribe_fops);
-
- if (is_ab8500(ab8500)) {
- debug_ranges = ab8500_debug_ranges;
- num_interrupt_lines = AB8500_NR_IRQS;
- } else if (is_ab8505(ab8500)) {
- debug_ranges = ab8505_debug_ranges;
- num_interrupt_lines = AB8505_NR_IRQS;
- } else if (is_ab9540(ab8500)) {
- debug_ranges = ab8505_debug_ranges;
- num_interrupt_lines = AB9540_NR_IRQS;
- } else if (is_ab8540(ab8500)) {
- debug_ranges = ab8540_debug_ranges;
- num_interrupt_lines = AB8540_NR_IRQS;
- }
-
- debugfs_create_file("interrupts", (S_IRUGO), ab8500_dir, &plf->dev,
- &ab8500_interrupts_fops);
- debugfs_create_file("irq-unsubscribe", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_dir, &plf->dev, &ab8500_unsubscribe_fops);
- debugfs_create_file("hwreg", (S_IRUGO | S_IWUSR | S_IWGRP), ab8500_dir,
- &plf->dev, &ab8500_hwreg_fops);
- debugfs_create_file("all-modem-registers", (S_IRUGO | S_IWUSR | S_IWGRP),
- ab8500_dir, &plf->dev, &ab8500_modem_fops);
-
- return 0;
-}
-
-static struct platform_driver ab8500_debug_driver = {
- .driver = {
- .name = "ab8500-debug",
- .suppress_bind_attrs = true,
- },
- .probe = ab8500_debug_probe,
-};
-
-static int __init ab8500_debug_init(void)
-{
- return platform_driver_register(&ab8500_debug_driver);
-}
-subsys_initcall(ab8500_debug_init);
--
2.34.1
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