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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: wacom - pass touch resolution to clients through input_absinfo
  Input: wacom - add 2 Bamboo Pen and touch models
  Input: sysrq - ensure sysrq_enabled and __sysrq_enabled are consistent
  Input: sparse-keymap - fix KEY_VSW handling in sparse_keymap_setup
  Input: tegra-kbc - add tegra keyboard driver
  Input: gpio_keys - switch to using request_any_context_irq
  Input: serio - allow registered drivers to get status flag
  Input: ct82710c - return proper error code for ct82c710_open
  Input: bu21013_ts - added regulator support
  Input: bu21013_ts - remove duplicate resolution parameters
  Input: tnetv107x-ts - don't treat NULL clk as an error
  Input: tnetv107x-keypad - don't treat NULL clk as an error

Fix up trivial conflicts in drivers/input/keyboard/Makefile due to
additions of tc3589x/Tegra drivers
This commit is contained in:
Linus Torvalds 2011-01-26 16:31:44 +10:00
parent ac751efa6a 409550f290
commit 6fb1b30425
16 changed files with 901 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

61
arch/arm/mach-tegra/include/mach/kbc.h Normal file
View File

@ -0,0 +1,61 @@
/*
* Platform definitions for tegra-kbc keyboard input driver
*
* Copyright (c) 2010-2011, NVIDIA Corporation.
*
* 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.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef ASMARM_ARCH_TEGRA_KBC_H
#define ASMARM_ARCH_TEGRA_KBC_H
#include <linux/types.h>
#include <linux/input/matrix_keypad.h>
#ifdef CONFIG_ARCH_TEGRA_2x_SOC
#define KBC_MAX_GPIO 24
#define KBC_MAX_KPENT 8
#else
#define KBC_MAX_GPIO 20
#define KBC_MAX_KPENT 7
#endif
#define KBC_MAX_ROW 16
#define KBC_MAX_COL 8
#define KBC_MAX_KEY (KBC_MAX_ROW * KBC_MAX_COL)
struct tegra_kbc_pin_cfg {
bool is_row;
unsigned char num;
};
struct tegra_kbc_wake_key {
u8 row:4;
u8 col:4;
};
struct tegra_kbc_platform_data {
unsigned int debounce_cnt;
unsigned int repeat_cnt;
unsigned int wake_cnt; /* 0:wake on any key >1:wake on wake_cfg */
const struct tegra_kbc_wake_key *wake_cfg;
struct tegra_kbc_pin_cfg pin_cfg[KBC_MAX_GPIO];
const struct matrix_keymap_data *keymap_data;
bool wakeup;
};
#endif

10
drivers/input/keyboard/Kconfig
View File

@ -343,6 +343,16 @@ config KEYBOARD_NOMADIK
To compile this driver as a module, choose M here: the
module will be called nmk-ske-keypad.
config KEYBOARD_TEGRA
tristate "NVIDIA Tegra internal matrix keyboard controller support"
depends on ARCH_TEGRA
help
Say Y here if you want to use a matrix keyboard connected directly
to the internal keyboard controller on Tegra SoCs.
To compile this driver as a module, choose M here: the
module will be called tegra-kbc.
config KEYBOARD_OPENCORES
tristate "OpenCores Keyboard Controller"
help

1
drivers/input/keyboard/Makefile
View File

@ -42,6 +42,7 @@ obj-$(CONFIG_KEYBOARD_STMPE) += stmpe-keypad.o
obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd.o
obj-$(CONFIG_KEYBOARD_TC3589X) += tc3589x-keypad.o
obj-$(CONFIG_KEYBOARD_TEGRA) += tegra-kbc.o
obj-$(CONFIG_KEYBOARD_TNETV107X) += tnetv107x-keypad.o
obj-$(CONFIG_KEYBOARD_TWL4030) += twl4030_keypad.o
obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o

6
drivers/input/keyboard/gpio_keys.c
View File

@ -322,7 +322,7 @@ static void gpio_keys_report_event(struct gpio_button_data *bdata)
struct gpio_keys_button *button = bdata->button;
struct input_dev *input = bdata->input;
unsigned int type = button->type ?: EV_KEY;
int state = (gpio_get_value(button->gpio) ? 1 : 0) ^ button->active_low;
int state = (gpio_get_value_cansleep(button->gpio) ? 1 : 0) ^ button->active_low;
input_event(input, type, button->code, !!state);
input_sync(input);
@ -410,8 +410,8 @@ static int __devinit gpio_keys_setup_key(struct platform_device *pdev,
if (!button->can_disable)
irqflags |= IRQF_SHARED;
error = request_irq(irq, gpio_keys_isr, irqflags, desc, bdata);
if (error) {
error = request_any_context_irq(irq, gpio_keys_isr, irqflags, desc, bdata);
if (error < 0) {
dev_err(dev, "Unable to claim irq %d; error %d\n",
irq, error);
goto fail3;

727
drivers/input/keyboard/tegra-kbc.c Normal file
View File

@ -0,0 +1,727 @@
/*
* Keyboard class input driver for the NVIDIA Tegra SoC internal matrix
* keyboard controller
*
* Copyright (c) 2009-2011, NVIDIA Corporation.
*
* 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.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <linux/module.h>
#include <linux/input.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/clk.h>
#include <linux/slab.h>
#include <mach/clk.h>
#include <mach/kbc.h>
#define KBC_MAX_DEBOUNCE_CNT 0x3ffu
/* KBC row scan time and delay for beginning the row scan. */
#define KBC_ROW_SCAN_TIME 16
#define KBC_ROW_SCAN_DLY 5
/* KBC uses a 32KHz clock so a cycle = 1/32Khz */
#define KBC_CYCLE_USEC 32
/* KBC Registers */
/* KBC Control Register */
#define KBC_CONTROL_0 0x0
#define KBC_FIFO_TH_CNT_SHIFT(cnt) (cnt << 14)
#define KBC_DEBOUNCE_CNT_SHIFT(cnt) (cnt << 4)
#define KBC_CONTROL_FIFO_CNT_INT_EN (1 << 3)
#define KBC_CONTROL_KBC_EN (1 << 0)
/* KBC Interrupt Register */
#define KBC_INT_0 0x4
#define KBC_INT_FIFO_CNT_INT_STATUS (1 << 2)
#define KBC_ROW_CFG0_0 0x8
#define KBC_COL_CFG0_0 0x18
#define KBC_INIT_DLY_0 0x28
#define KBC_RPT_DLY_0 0x2c
#define KBC_KP_ENT0_0 0x30
#define KBC_KP_ENT1_0 0x34
#define KBC_ROW0_MASK_0 0x38
#define KBC_ROW_SHIFT 3
struct tegra_kbc {
void __iomem *mmio;
struct input_dev *idev;
unsigned int irq;
unsigned int wake_enable_rows;
unsigned int wake_enable_cols;
spinlock_t lock;
unsigned int repoll_dly;
unsigned long cp_dly_jiffies;
const struct tegra_kbc_platform_data *pdata;
unsigned short keycode[KBC_MAX_KEY];
unsigned short current_keys[KBC_MAX_KPENT];
unsigned int num_pressed_keys;
struct timer_list timer;
struct clk *clk;
};
static const u32 tegra_kbc_default_keymap[] = {
KEY(0, 2, KEY_W),
KEY(0, 3, KEY_S),
KEY(0, 4, KEY_A),
KEY(0, 5, KEY_Z),
KEY(0, 7, KEY_FN),
KEY(1, 7, KEY_MENU),
KEY(2, 6, KEY_RIGHTALT),
KEY(2, 7, KEY_LEFTALT),
KEY(3, 0, KEY_5),
KEY(3, 1, KEY_4),
KEY(3, 2, KEY_R),
KEY(3, 3, KEY_E),
KEY(3, 4, KEY_F),
KEY(3, 5, KEY_D),
KEY(3, 6, KEY_X),
KEY(4, 0, KEY_7),
KEY(4, 1, KEY_6),
KEY(4, 2, KEY_T),
KEY(4, 3, KEY_H),
KEY(4, 4, KEY_G),
KEY(4, 5, KEY_V),
KEY(4, 6, KEY_C),
KEY(4, 7, KEY_SPACE),
KEY(5, 0, KEY_9),
KEY(5, 1, KEY_8),
KEY(5, 2, KEY_U),
KEY(5, 3, KEY_Y),
KEY(5, 4, KEY_J),
KEY(5, 5, KEY_N),
KEY(5, 6, KEY_B),
KEY(5, 7, KEY_BACKSLASH),
KEY(6, 0, KEY_MINUS),
KEY(6, 1, KEY_0),
KEY(6, 2, KEY_O),
KEY(6, 3, KEY_I),
KEY(6, 4, KEY_L),
KEY(6, 5, KEY_K),
KEY(6, 6, KEY_COMMA),
KEY(6, 7, KEY_M),
KEY(7, 1, KEY_EQUAL),
KEY(7, 2, KEY_RIGHTBRACE),
KEY(7, 3, KEY_ENTER),
KEY(7, 7, KEY_MENU),
KEY(8, 4, KEY_RIGHTSHIFT),
KEY(8, 5, KEY_LEFTSHIFT),
KEY(9, 5, KEY_RIGHTCTRL),
KEY(9, 7, KEY_LEFTCTRL),
KEY(11, 0, KEY_LEFTBRACE),
KEY(11, 1, KEY_P),
KEY(11, 2, KEY_APOSTROPHE),
KEY(11, 3, KEY_SEMICOLON),
KEY(11, 4, KEY_SLASH),
KEY(11, 5, KEY_DOT),
KEY(12, 0, KEY_F10),
KEY(12, 1, KEY_F9),
KEY(12, 2, KEY_BACKSPACE),
KEY(12, 3, KEY_3),
KEY(12, 4, KEY_2),
KEY(12, 5, KEY_UP),
KEY(12, 6, KEY_PRINT),
KEY(12, 7, KEY_PAUSE),
KEY(13, 0, KEY_INSERT),
KEY(13, 1, KEY_DELETE),
KEY(13, 3, KEY_PAGEUP),
KEY(13, 4, KEY_PAGEDOWN),
KEY(13, 5, KEY_RIGHT),
KEY(13, 6, KEY_DOWN),
KEY(13, 7, KEY_LEFT),
KEY(14, 0, KEY_F11),
KEY(14, 1, KEY_F12),
KEY(14, 2, KEY_F8),
KEY(14, 3, KEY_Q),
KEY(14, 4, KEY_F4),
KEY(14, 5, KEY_F3),
KEY(14, 6, KEY_1),
KEY(14, 7, KEY_F7),
KEY(15, 0, KEY_ESC),
KEY(15, 1, KEY_GRAVE),
KEY(15, 2, KEY_F5),
KEY(15, 3, KEY_TAB),
KEY(15, 4, KEY_F1),
KEY(15, 5, KEY_F2),
KEY(15, 6, KEY_CAPSLOCK),
KEY(15, 7, KEY_F6),
};
static const struct matrix_keymap_data tegra_kbc_default_keymap_data = {
.keymap = tegra_kbc_default_keymap,
.keymap_size = ARRAY_SIZE(tegra_kbc_default_keymap),
};
static void tegra_kbc_report_released_keys(struct input_dev *input,
unsigned short old_keycodes[],
unsigned int old_num_keys,
unsigned short new_keycodes[],
unsigned int new_num_keys)
{
unsigned int i, j;
for (i = 0; i < old_num_keys; i++) {
for (j = 0; j < new_num_keys; j++)
if (old_keycodes[i] == new_keycodes[j])
break;
if (j == new_num_keys)
input_report_key(input, old_keycodes[i], 0);
}
}
static void tegra_kbc_report_pressed_keys(struct input_dev *input,
unsigned char scancodes[],
unsigned short keycodes[],
unsigned int num_pressed_keys)
{
unsigned int i;
for (i = 0; i < num_pressed_keys; i++) {
input_event(input, EV_MSC, MSC_SCAN, scancodes[i]);
input_report_key(input, keycodes[i], 1);
}
}
static void tegra_kbc_report_keys(struct tegra_kbc *kbc)
{
unsigned char scancodes[KBC_MAX_KPENT];
unsigned short keycodes[KBC_MAX_KPENT];
u32 val = 0;
unsigned int i;
unsigned int num_down = 0;
unsigned long flags;
spin_lock_irqsave(&kbc->lock, flags);
for (i = 0; i < KBC_MAX_KPENT; i++) {
if ((i % 4) == 0)
val = readl(kbc->mmio + KBC_KP_ENT0_0 + i);
if (val & 0x80) {
unsigned int col = val & 0x07;
unsigned int row = (val >> 3) & 0x0f;
unsigned char scancode =
MATRIX_SCAN_CODE(row, col, KBC_ROW_SHIFT);
scancodes[num_down] = scancode;
keycodes[num_down++] = kbc->keycode[scancode];
}
val >>= 8;
}
spin_unlock_irqrestore(&kbc->lock, flags);
tegra_kbc_report_released_keys(kbc->idev,
kbc->current_keys, kbc->num_pressed_keys,
keycodes, num_down);
tegra_kbc_report_pressed_keys(kbc->idev, scancodes, keycodes, num_down);
input_sync(kbc->idev);
memcpy(kbc->current_keys, keycodes, sizeof(kbc->current_keys));
kbc->num_pressed_keys = num_down;
}
static void tegra_kbc_keypress_timer(unsigned long data)
{
struct tegra_kbc *kbc = (struct tegra_kbc *)data;
unsigned long flags;
u32 val;
unsigned int i;
val = (readl(kbc->mmio + KBC_INT_0) >> 4) & 0xf;
if (val) {
unsigned long dly;
tegra_kbc_report_keys(kbc);
/*
* If more than one keys are pressed we need not wait
* for the repoll delay.
*/
dly = (val == 1) ? kbc->repoll_dly : 1;
mod_timer(&kbc->timer, jiffies + msecs_to_jiffies(dly));
} else {
/* Release any pressed keys and exit the polling loop */
for (i = 0; i < kbc->num_pressed_keys; i++)
input_report_key(kbc->idev, kbc->current_keys[i], 0);
input_sync(kbc->idev);
kbc->num_pressed_keys = 0;
/* All keys are released so enable the keypress interrupt */
spin_lock_irqsave(&kbc->lock, flags);
val = readl(kbc->mmio + KBC_CONTROL_0);
val |= KBC_CONTROL_FIFO_CNT_INT_EN;
writel(val, kbc->mmio + KBC_CONTROL_0);
spin_unlock_irqrestore(&kbc->lock, flags);
}
}
static irqreturn_t tegra_kbc_isr(int irq, void *args)
{
struct tegra_kbc *kbc = args;
u32 val, ctl;
/*
* Until all keys are released, defer further processing to
* the polling loop in tegra_kbc_keypress_timer
*/
ctl = readl(kbc->mmio + KBC_CONTROL_0);
ctl &= ~KBC_CONTROL_FIFO_CNT_INT_EN;
writel(ctl, kbc->mmio + KBC_CONTROL_0);
/*
* Quickly bail out & reenable interrupts if the fifo threshold
* count interrupt wasn't the interrupt source
*/
val = readl(kbc->mmio + KBC_INT_0);
writel(val, kbc->mmio + KBC_INT_0);
if (val & KBC_INT_FIFO_CNT_INT_STATUS) {
/*
* Schedule timer to run when hardware is in continuous
* polling mode.
*/
mod_timer(&kbc->timer, jiffies + kbc->cp_dly_jiffies);
} else {
ctl |= KBC_CONTROL_FIFO_CNT_INT_EN;
writel(ctl, kbc->mmio + KBC_CONTROL_0);
}
return IRQ_HANDLED;
}
static void tegra_kbc_setup_wakekeys(struct tegra_kbc *kbc, bool filter)
{
const struct tegra_kbc_platform_data *pdata = kbc->pdata;
int i;
unsigned int rst_val;
BUG_ON(pdata->wake_cnt > KBC_MAX_KEY);
rst_val = (filter && pdata->wake_cnt) ? ~0 : 0;
for (i = 0; i < KBC_MAX_ROW; i++)
writel(rst_val, kbc->mmio + KBC_ROW0_MASK_0 + i * 4);
if (filter) {
for (i = 0; i < pdata->wake_cnt; i++) {
u32 val, addr;
addr = pdata->wake_cfg[i].row * 4 + KBC_ROW0_MASK_0;
val = readl(kbc->mmio + addr);
val &= ~(1 << pdata->wake_cfg[i].col);
writel(val, kbc->mmio + addr);
}
}
}
static void tegra_kbc_config_pins(struct tegra_kbc *kbc)
{
const struct tegra_kbc_platform_data *pdata = kbc->pdata;
int i;
for (i = 0; i < KBC_MAX_GPIO; i++) {
u32 r_shft = 5 * (i % 6);
u32 c_shft = 4 * (i % 8);
u32 r_mask = 0x1f << r_shift;
u32 c_mask = 0x0f << c_shift;
u32 r_offs = (i / 6) * 4 + KBC_ROW_CFG0_0;
u32 c_offs = (i / 8) * 4 + KBC_COL_CFG0_0;
u32 row_cfg = readl(kbc->mmio + r_offs);
u32 col_cfg = readl(kbc->mmio + c_offs);
row_cfg &= ~r_mask;
col_cfg &= ~c_mask;
if (pdata->pin_cfg[i].is_row)
row_cfg |= ((pdata->pin_cfg[i].num << 1) | 1) << r_shft;
else
col_cfg |= ((pdata->pin_cfg[i].num << 1) | 1) << c_shft;
writel(row_cfg, kbc->mmio + r_offs);
writel(col_cfg, kbc->mmio + c_offs);
}
}
static int tegra_kbc_start(struct tegra_kbc *kbc)
{
const struct tegra_kbc_platform_data *pdata = kbc->pdata;
unsigned long flags;
unsigned int debounce_cnt;
u32 val = 0;
clk_enable(kbc->clk);
/* Reset the KBC controller to clear all previous status.*/
tegra_periph_reset_assert(kbc->clk);
udelay(100);
tegra_periph_reset_deassert(kbc->clk);
udelay(100);
tegra_kbc_config_pins(kbc);
tegra_kbc_setup_wakekeys(kbc, false);
writel(pdata->repeat_cnt, kbc->mmio + KBC_RPT_DLY_0);
/* Keyboard debounce count is maximum of 12 bits. */
debounce_cnt = min(pdata->debounce_cnt, KBC_MAX_DEBOUNCE_CNT);
val = KBC_DEBOUNCE_CNT_SHIFT(debounce_cnt);
val |= KBC_FIFO_TH_CNT_SHIFT(1); /* set fifo interrupt threshold to 1 */
val |= KBC_CONTROL_FIFO_CNT_INT_EN; /* interrupt on FIFO threshold */
val |= KBC_CONTROL_KBC_EN; /* enable */
writel(val, kbc->mmio + KBC_CONTROL_0);
/*
* Compute the delay(ns) from interrupt mode to continuous polling
* mode so the timer routine is scheduled appropriately.
*/
val = readl(kbc->mmio + KBC_INIT_DLY_0);
kbc->cp_dly_jiffies = usecs_to_jiffies((val & 0xfffff) * 32);
kbc->num_pressed_keys = 0;
/*
* Atomically clear out any remaining entries in the key FIFO
* and enable keyboard interrupts.
*/
spin_lock_irqsave(&kbc->lock, flags);
while (1) {
val = readl(kbc->mmio + KBC_INT_0);
val >>= 4;
if (!val)
break;
val = readl(kbc->mmio + KBC_KP_ENT0_0);
val = readl(kbc->mmio + KBC_KP_ENT1_0);
}
writel(0x7, kbc->mmio + KBC_INT_0);
spin_unlock_irqrestore(&kbc->lock, flags);
enable_irq(kbc->irq);
return 0;
}
static void tegra_kbc_stop(struct tegra_kbc *kbc)
{
unsigned long flags;
u32 val;
spin_lock_irqsave(&kbc->lock, flags);
val = readl(kbc->mmio + KBC_CONTROL_0);
val &= ~1;
writel(val, kbc->mmio + KBC_CONTROL_0);
spin_unlock_irqrestore(&kbc->lock, flags);
disable_irq(kbc->irq);
del_timer_sync(&kbc->timer);
clk_disable(kbc->clk);
}
static int tegra_kbc_open(struct input_dev *dev)
{
struct tegra_kbc *kbc = input_get_drvdata(dev);
return tegra_kbc_start(kbc);
}
static void tegra_kbc_close(struct input_dev *dev)
{
struct tegra_kbc *kbc = input_get_drvdata(dev);
return tegra_kbc_stop(kbc);
}
static bool __devinit
tegra_kbc_check_pin_cfg(const struct tegra_kbc_platform_data *pdata,
struct device *dev, unsigned int *num_rows)
{
int i;
*num_rows = 0;
for (i = 0; i < KBC_MAX_GPIO; i++) {
const struct tegra_kbc_pin_cfg *pin_cfg = &pdata->pin_cfg[i];
if (pin_cfg->is_row) {
if (pin_cfg->num >= KBC_MAX_ROW) {
dev_err(dev,
"pin_cfg[%d]: invalid row number %d\n",
i, pin_cfg->num);
return false;
}
(*num_rows)++;
} else {
if (pin_cfg->num >= KBC_MAX_COL) {
dev_err(dev,
"pin_cfg[%d]: invalid column number %d\n",
i, pin_cfg->num);
return false;
}
}
}
return true;
}
static int __devinit tegra_kbc_probe(struct platform_device *pdev)
{
const struct tegra_kbc_platform_data *pdata = pdev->dev.platform_data;
const struct matrix_keymap_data *keymap_data;
struct tegra_kbc *kbc;
struct input_dev *input_dev;
struct resource *res;
int irq;
int err;
int i;
int num_rows = 0;
unsigned int debounce_cnt;
unsigned int scan_time_rows;
if (!pdata)
return -EINVAL;
if (!tegra_kbc_check_pin_cfg(pdata, &pdev->dev, &num_rows))
return -EINVAL;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "failed to get I/O memory\n");
return -ENXIO;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "failed to get keyboard IRQ\n");
return -ENXIO;
}
kbc = kzalloc(sizeof(*kbc), GFP_KERNEL);
input_dev = input_allocate_device();
if (!kbc || !input_dev) {
err = -ENOMEM;
goto err_free_mem;
}
kbc->pdata = pdata;
kbc->idev = input_dev;
kbc->irq = irq;
spin_lock_init(&kbc->lock);
setup_timer(&kbc->timer, tegra_kbc_keypress_timer, (unsigned long)kbc);
res = request_mem_region(res->start, resource_size(res), pdev->name);
if (!res) {
dev_err(&pdev->dev, "failed to request I/O memory\n");
err = -EBUSY;
goto err_free_mem;
}
kbc->mmio = ioremap(res->start, resource_size(res));
if (!kbc->mmio) {
dev_err(&pdev->dev, "failed to remap I/O memory\n");
err = -ENXIO;
goto err_free_mem_region;
}
kbc->clk = clk_get(&pdev->dev, NULL);
if (IS_ERR(kbc->clk)) {
dev_err(&pdev->dev, "failed to get keyboard clock\n");
err = PTR_ERR(kbc->clk);
goto err_iounmap;
}
kbc->wake_enable_rows = 0;
kbc->wake_enable_cols = 0;
for (i = 0; i < pdata->wake_cnt; i++) {
kbc->wake_enable_rows |= (1 << pdata->wake_cfg[i].row);
kbc->wake_enable_cols |= (1 << pdata->wake_cfg[i].col);
}
/*
* The time delay between two consecutive reads of the FIFO is
* the sum of the repeat time and the time taken for scanning
* the rows. There is an additional delay before the row scanning
* starts. The repoll delay is computed in milliseconds.
*/
debounce_cnt = min(pdata->debounce_cnt, KBC_MAX_DEBOUNCE_CNT);
scan_time_rows = (KBC_ROW_SCAN_TIME + debounce_cnt) * num_rows;
kbc->repoll_dly = KBC_ROW_SCAN_DLY + scan_time_rows + pdata->repeat_cnt;
kbc->repoll_dly = ((kbc->repoll_dly * KBC_CYCLE_USEC) + 999) / 1000;
input_dev->name = pdev->name;
input_dev->id.bustype = BUS_HOST;
input_dev->dev.parent = &pdev->dev;
input_dev->open = tegra_kbc_open;
input_dev->close = tegra_kbc_close;
input_set_drvdata(input_dev, kbc);
input_dev->evbit[0] = BIT_MASK(EV_KEY);
input_set_capability(input_dev, EV_MSC, MSC_SCAN);
input_dev->keycode = kbc->keycode;
input_dev->keycodesize = sizeof(kbc->keycode[0]);
input_dev->keycodemax = ARRAY_SIZE(kbc->keycode);
keymap_data = pdata->keymap_data ?: &tegra_kbc_default_keymap_data;
matrix_keypad_build_keymap(keymap_data, KBC_ROW_SHIFT,
input_dev->keycode, input_dev->keybit);
err = request_irq(kbc->irq, tegra_kbc_isr, IRQF_TRIGGER_HIGH,
pdev->name, kbc);
if (err) {
dev_err(&pdev->dev, "failed to request keyboard IRQ\n");
goto err_put_clk;
}
disable_irq(kbc->irq);
err = input_register_device(kbc->idev);
if (err) {
dev_err(&pdev->dev, "failed to register input device\n");
goto err_free_irq;
}
platform_set_drvdata(pdev, kbc);
device_init_wakeup(&pdev->dev, pdata->wakeup);
return 0;
err_free_irq:
free_irq(kbc->irq, pdev);
err_put_clk:
clk_put(kbc->clk);
err_iounmap:
iounmap(kbc->mmio);
err_free_mem_region:
release_mem_region(res->start, resource_size(res));
err_free_mem:
input_free_device(kbc->idev);
kfree(kbc);
return err;
}
static int __devexit tegra_kbc_remove(struct platform_device *pdev)
{
struct tegra_kbc *kbc = platform_get_drvdata(pdev);
struct resource *res;
free_irq(kbc->irq, pdev);
clk_put(kbc->clk);
input_unregister_device(kbc->idev);
iounmap(kbc->mmio);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, resource_size(res));
kfree(kbc);
platform_set_drvdata(pdev, NULL);
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int tegra_kbc_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct tegra_kbc *kbc = platform_get_drvdata(pdev);
if (device_may_wakeup(&pdev->dev)) {
tegra_kbc_setup_wakekeys(kbc, true);
enable_irq_wake(kbc->irq);
/* Forcefully clear the interrupt status */
writel(0x7, kbc->mmio + KBC_INT_0);
msleep(30);
} else {
mutex_lock(&kbc->idev->mutex);
if (kbc->idev->users)
tegra_kbc_stop(kbc);
mutex_unlock(&kbc->idev->mutex);
}
return 0;
}
static int tegra_kbc_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct tegra_kbc *kbc = platform_get_drvdata(pdev);
int err = 0;
if (device_may_wakeup(&pdev->dev)) {
disable_irq_wake(kbc->irq);
tegra_kbc_setup_wakekeys(kbc, false);
} else {
mutex_lock(&kbc->idev->mutex);
if (kbc->idev->users)
err = tegra_kbc_start(kbc);
mutex_unlock(&kbc->idev->mutex);
}
return err;
}
#endif
static SIMPLE_DEV_PM_OPS(tegra_kbc_pm_ops, tegra_kbc_suspend, tegra_kbc_resume);
static struct platform_driver tegra_kbc_driver = {
.probe = tegra_kbc_probe,
.remove = __devexit_p(tegra_kbc_remove),
.driver = {
.name = "tegra-kbc",
.owner = THIS_MODULE,
.pm = &tegra_kbc_pm_ops,
},
};
static void __exit tegra_kbc_exit(void)
{
platform_driver_unregister(&tegra_kbc_driver);
}
module_exit(tegra_kbc_exit);
static int __init tegra_kbc_init(void)
{
return platform_driver_register(&tegra_kbc_driver);
}
module_init(tegra_kbc_init);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Rakesh Iyer <riyer@nvidia.com>");
MODULE_DESCRIPTION("Tegra matrix keyboard controller driver");
MODULE_ALIAS("platform:tegra-kbc");

5
drivers/input/keyboard/tnetv107x-keypad.c
View File

@ -14,6 +14,7 @@
*/
#include <linux/kernel.h>
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/input.h>
#include <linux/platform_device.h>
@ -219,9 +220,9 @@ static int __devinit keypad_probe(struct platform_device *pdev)
}
kp->clk = clk_get(dev, NULL);
if (!kp->clk) {
if (IS_ERR(kp->clk)) {
dev_err(dev, "cannot claim device clock\n");
error = -EINVAL;
error = PTR_ERR(kp->clk);
goto error_clk;
}

8
drivers/input/serio/ct82c710.c
View File

@ -111,9 +111,11 @@ static void ct82c710_close(struct serio *serio)
static int ct82c710_open(struct serio *serio)
{
unsigned char status;
int err;
if (request_irq(CT82C710_IRQ, ct82c710_interrupt, 0, "ct82c710", NULL))
return -1;
err = request_irq(CT82C710_IRQ, ct82c710_interrupt, 0, "ct82c710", NULL);
if (err)
return err;
status = inb_p(CT82C710_STATUS);
@ -131,7 +133,7 @@ static int ct82c710_open(struct serio *serio)
status &= ~(CT82C710_ENABLE | CT82C710_INTS_ON);
outb_p(status, CT82C710_STATUS);
free_irq(CT82C710_IRQ, NULL);
return -1;
return -EBUSY;
}
return 0;

24
drivers/input/serio/serport.c
View File

@ -116,14 +116,15 @@ static void serport_ldisc_close(struct tty_struct *tty)
/*
* serport_ldisc_receive() is called by the low level tty driver when characters
* are ready for us. We forward the characters, one by one to the 'interrupt'
* routine.
* are ready for us. We forward the characters and flags, one by one to the
* 'interrupt' routine.
*/
static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *cp, char *fp, int count)
{
struct serport *serport = (struct serport*) tty->disc_data;
unsigned long flags;
unsigned int ch_flags;
int i;
spin_lock_irqsave(&serport->lock, flags);
@ -131,8 +132,23 @@ static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *c
if (!test_bit(SERPORT_ACTIVE, &serport->flags))
goto out;
for (i = 0; i < count; i++)
serio_interrupt(serport->serio, cp[i], 0);
for (i = 0; i < count; i++) {
switch (fp[i]) {
case TTY_FRAME:
ch_flags = SERIO_FRAME;
break;
case TTY_PARITY:
ch_flags = SERIO_PARITY;
break;
default:
ch_flags = 0;
break;
}
serio_interrupt(serport->serio, cp[i], ch_flags);
}
out:
spin_unlock_irqrestore(&serport->lock, flags);

1
drivers/input/sparse-keymap.c
View File

@ -201,6 +201,7 @@ int sparse_keymap_setup(struct input_dev *dev,
break;
case KE_SW:
case KE_VSW:
__set_bit(EV_SW, dev->evbit);
__set_bit(entry->sw.code, dev->swbit);
break;

27
drivers/input/tablet/wacom_wac.c
View File

@ -1101,6 +1101,13 @@ void wacom_setup_device_quirks(struct wacom_features *features)
}
}
static unsigned int wacom_calculate_touch_res(unsigned int logical_max,
unsigned int physical_max)
{
/* Touch physical dimensions are in 100th of mm */
return (logical_max * 100) / physical_max;
}
void wacom_setup_input_capabilities(struct input_dev *input_dev,
struct wacom_wac *wacom_wac)
{
@ -1228,8 +1235,12 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
case TABLETPC:
if (features->device_type == BTN_TOOL_DOUBLETAP ||
features->device_type == BTN_TOOL_TRIPLETAP) {
input_set_abs_params(input_dev, ABS_RX, 0, features->x_phy, 0, 0);
input_set_abs_params(input_dev, ABS_RY, 0, features->y_phy, 0, 0);
input_abs_set_res(input_dev, ABS_X,
wacom_calculate_touch_res(features->x_max,
features->x_phy));
input_abs_set_res(input_dev, ABS_Y,
wacom_calculate_touch_res(features->y_max,
features->y_phy));
__set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
}
@ -1272,6 +1283,12 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
input_set_abs_params(input_dev, ABS_MT_PRESSURE,
0, features->pressure_max,
features->pressure_fuzz, 0);
input_abs_set_res(input_dev, ABS_X,
wacom_calculate_touch_res(features->x_max,
features->x_phy));
input_abs_set_res(input_dev, ABS_Y,
wacom_calculate_touch_res(features->y_max,
features->y_phy));
} else if (features->device_type == BTN_TOOL_PEN) {
__set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
__set_bit(BTN_TOOL_PEN, input_dev->keybit);
@ -1426,6 +1443,10 @@ static struct wacom_features wacom_features_0xD3 =
{ "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT };
static const struct wacom_features wacom_features_0xD4 =
{ "Wacom Bamboo Pen", WACOM_PKGLEN_BBFUN, 14720, 9200, 255, 63, BAMBOO_PT };
static struct wacom_features wacom_features_0xD6 =
{ "Wacom BambooPT 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT };
static struct wacom_features wacom_features_0xD7 =
{ "Wacom BambooPT 2FG Small", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT };
static struct wacom_features wacom_features_0xD8 =
{ "Wacom Bamboo Comic 2FG", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT };
static struct wacom_features wacom_features_0xDA =
@ -1507,6 +1528,8 @@ const struct usb_device_id wacom_ids[] = {
{ USB_DEVICE_WACOM(0xD2) },
{ USB_DEVICE_WACOM(0xD3) },
{ USB_DEVICE_WACOM(0xD4) },
{ USB_DEVICE_WACOM(0xD6) },
{ USB_DEVICE_WACOM(0xD7) },
{ USB_DEVICE_WACOM(0xD8) },
{ USB_DEVICE_WACOM(0xDA) },
{ USB_DEVICE_WACOM(0xDB) },

39
drivers/input/touchscreen/bu21013_ts.c
View File

@ -12,6 +12,7 @@
#include <linux/input.h>
#include <linux/input/bu21013.h>
#include <linux/slab.h>
#include <linux/regulator/consumer.h>
#define PEN_DOWN_INTR 0
#define MAX_FINGERS 2
@ -139,6 +140,7 @@
* @chip: pointer to the touch panel controller
* @in_dev: pointer to the input device structure
* @intr_pin: interrupt pin value
* @regulator: pointer to the Regulator used for touch screen
*
* Touch panel device data structure
*/
@ -149,6 +151,7 @@ struct bu21013_ts_data {
const struct bu21013_platform_device *chip;
struct input_dev *in_dev;
unsigned int intr_pin;
struct regulator *regulator;
};
/**
@ -456,6 +459,20 @@ static int __devinit bu21013_probe(struct i2c_client *client,
bu21013_data->in_dev = in_dev;
bu21013_data->chip = pdata;
bu21013_data->client = client;
bu21013_data->regulator = regulator_get(&client->dev, "V-TOUCH");
if (IS_ERR(bu21013_data->regulator)) {
dev_err(&client->dev, "regulator_get failed\n");
error = PTR_ERR(bu21013_data->regulator);
goto err_free_mem;
}
error = regulator_enable(bu21013_data->regulator);
if (error < 0) {
dev_err(&client->dev, "regulator enable failed\n");
goto err_put_regulator;
}
bu21013_data->touch_stopped = false;
init_waitqueue_head(&bu21013_data->wait);
@ -464,7 +481,7 @@ static int __devinit bu21013_probe(struct i2c_client *client,
error = pdata->cs_en(pdata->cs_pin);
if (error < 0) {
dev_err(&client->dev, "chip init failed\n");
goto err_free_mem;
goto err_disable_regulator;
}
}
@ -485,9 +502,9 @@ static int __devinit bu21013_probe(struct i2c_client *client,
__set_bit(EV_ABS, in_dev->evbit);
input_set_abs_params(in_dev, ABS_MT_POSITION_X, 0,
pdata->x_max_res, 0, 0);
pdata->touch_x_max, 0, 0);
input_set_abs_params(in_dev, ABS_MT_POSITION_Y, 0,
pdata->y_max_res, 0, 0);
pdata->touch_y_max, 0, 0);
input_set_drvdata(in_dev, bu21013_data);
error = request_threaded_irq(pdata->irq, NULL, bu21013_gpio_irq,
@ -513,6 +530,10 @@ err_free_irq:
bu21013_free_irq(bu21013_data);
err_cs_disable:
pdata->cs_dis(pdata->cs_pin);
err_disable_regulator:
regulator_disable(bu21013_data->regulator);
err_put_regulator:
regulator_put(bu21013_data->regulator);
err_free_mem:
input_free_device(in_dev);
kfree(bu21013_data);
@ -535,6 +556,10 @@ static int __devexit bu21013_remove(struct i2c_client *client)
bu21013_data->chip->cs_dis(bu21013_data->chip->cs_pin);
input_unregister_device(bu21013_data->in_dev);
regulator_disable(bu21013_data->regulator);
regulator_put(bu21013_data->regulator);
kfree(bu21013_data);
device_init_wakeup(&client->dev, false);
@ -561,6 +586,8 @@ static int bu21013_suspend(struct device *dev)
else
disable_irq(bu21013_data->chip->irq);
regulator_disable(bu21013_data->regulator);
return 0;
}
@ -577,6 +604,12 @@ static int bu21013_resume(struct device *dev)
struct i2c_client *client = bu21013_data->client;
int retval;
retval = regulator_enable(bu21013_data->regulator);
if (retval < 0) {
dev_err(&client->dev, "bu21013 regulator enable failed\n");
return retval;
}
retval = bu21013_init_chip(bu21013_data);
if (retval < 0) {
dev_err(&client->dev, "bu21013 controller config failed\n");

5
drivers/input/touchscreen/tnetv107x-ts.c
View File

@ -14,6 +14,7 @@
*/
#include <linux/kernel.h>
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/input.h>
#include <linux/platform_device.h>
@ -289,9 +290,9 @@ static int __devinit tsc_probe(struct platform_device *pdev)
}
ts->clk = clk_get(dev, NULL);
if (!ts->clk) {
if (IS_ERR(ts->clk)) {
dev_err(dev, "cannot claim device clock\n");
error = -EINVAL;
error = PTR_ERR(ts->clk);
goto error_clk;
}

2
drivers/tty/sysrq.c
View File

@ -46,7 +46,7 @@
#include <asm/irq_regs.h>
/* Whether we react on sysrq keys or just ignore them */
static int __read_mostly sysrq_enabled = 1;
static int __read_mostly sysrq_enabled = SYSRQ_DEFAULT_ENABLE;
static bool __read_mostly sysrq_always_enabled;
static bool sysrq_on(void)

4
include/linux/input/bu21013.h
View File

@ -12,8 +12,6 @@
* @cs_en: pointer to the cs enable function
* @cs_dis: pointer to the cs disable function
* @irq_read_val: pointer to read the pen irq value function
* @x_max_res: xmax resolution
* @y_max_res: ymax resolution
* @touch_x_max: touch x max
* @touch_y_max: touch y max
* @cs_pin: chip select pin
@ -29,8 +27,6 @@ struct bu21013_platform_device {
int (*cs_en)(int reset_pin);
int (*cs_dis)(int reset_pin);
int (*irq_read_val)(void);
int x_max_res;
int y_max_res;
int touch_x_max;
int touch_y_max;
unsigned int cs_pin;

3
include/linux/sysrq.h
View File

@ -17,6 +17,9 @@
#include <linux/errno.h>
#include <linux/types.h>
/* Enable/disable SYSRQ support by default (0==no, 1==yes). */
#define SYSRQ_DEFAULT_ENABLE 1
/* Possible values of bitmask for enabling sysrq functions */
/* 0x0001 is reserved for enable everything */
#define SYSRQ_ENABLE_LOG 0x0002

3
kernel/sysctl.c
View File

@ -170,7 +170,8 @@ static int proc_taint(struct ctl_table *table, int write,
#endif
#ifdef CONFIG_MAGIC_SYSRQ
static int __sysrq_enabled; /* Note: sysrq code ises it's own private copy */
/* Note: sysrq code uses it's own private copy */
static int __sysrq_enabled = SYSRQ_DEFAULT_ENABLE;
static int sysrq_sysctl_handler(ctl_table *table, int write,
void __user *buffer, size_t *lenp,