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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/drivers/input/keyboard/pmic8xxx-keypad.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/drivers/input/keyboard/pmic8xxx-keypad.c')
-rw-r--r--ANDROID_3.4.5/drivers/input/keyboard/pmic8xxx-keypad.c789
1 files changed, 0 insertions, 789 deletions
diff --git a/ANDROID_3.4.5/drivers/input/keyboard/pmic8xxx-keypad.c b/ANDROID_3.4.5/drivers/input/keyboard/pmic8xxx-keypad.c
deleted file mode 100644
index 01a1c9f8..00000000
--- a/ANDROID_3.4.5/drivers/input/keyboard/pmic8xxx-keypad.c
+++ /dev/null
@@ -1,789 +0,0 @@
-/* Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * 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.
- */
-
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/input.h>
-#include <linux/bitops.h>
-#include <linux/delay.h>
-#include <linux/mutex.h>
-
-#include <linux/mfd/pm8xxx/core.h>
-#include <linux/mfd/pm8xxx/gpio.h>
-#include <linux/input/pmic8xxx-keypad.h>
-
-#define PM8XXX_MAX_ROWS 18
-#define PM8XXX_MAX_COLS 8
-#define PM8XXX_ROW_SHIFT 3
-#define PM8XXX_MATRIX_MAX_SIZE (PM8XXX_MAX_ROWS * PM8XXX_MAX_COLS)
-
-#define PM8XXX_MIN_ROWS 5
-#define PM8XXX_MIN_COLS 5
-
-#define MAX_SCAN_DELAY 128
-#define MIN_SCAN_DELAY 1
-
-/* in nanoseconds */
-#define MAX_ROW_HOLD_DELAY 122000
-#define MIN_ROW_HOLD_DELAY 30500
-
-#define MAX_DEBOUNCE_TIME 20
-#define MIN_DEBOUNCE_TIME 5
-
-#define KEYP_CTRL 0x148
-
-#define KEYP_CTRL_EVNTS BIT(0)
-#define KEYP_CTRL_EVNTS_MASK 0x3
-
-#define KEYP_CTRL_SCAN_COLS_SHIFT 5
-#define KEYP_CTRL_SCAN_COLS_MIN 5
-#define KEYP_CTRL_SCAN_COLS_BITS 0x3
-
-#define KEYP_CTRL_SCAN_ROWS_SHIFT 2
-#define KEYP_CTRL_SCAN_ROWS_MIN 5
-#define KEYP_CTRL_SCAN_ROWS_BITS 0x7
-
-#define KEYP_CTRL_KEYP_EN BIT(7)
-
-#define KEYP_SCAN 0x149
-
-#define KEYP_SCAN_READ_STATE BIT(0)
-#define KEYP_SCAN_DBOUNCE_SHIFT 1
-#define KEYP_SCAN_PAUSE_SHIFT 3
-#define KEYP_SCAN_ROW_HOLD_SHIFT 6
-
-#define KEYP_TEST 0x14A
-
-#define KEYP_TEST_CLEAR_RECENT_SCAN BIT(6)
-#define KEYP_TEST_CLEAR_OLD_SCAN BIT(5)
-#define KEYP_TEST_READ_RESET BIT(4)
-#define KEYP_TEST_DTEST_EN BIT(3)
-#define KEYP_TEST_ABORT_READ BIT(0)
-
-#define KEYP_TEST_DBG_SELECT_SHIFT 1
-
-/* bits of these registers represent
- * '0' for key press
- * '1' for key release
- */
-#define KEYP_RECENT_DATA 0x14B
-#define KEYP_OLD_DATA 0x14C
-
-#define KEYP_CLOCK_FREQ 32768
-
-/**
- * struct pmic8xxx_kp - internal keypad data structure
- * @pdata - keypad platform data pointer
- * @input - input device pointer for keypad
- * @key_sense_irq - key press/release irq number
- * @key_stuck_irq - key stuck notification irq number
- * @keycodes - array to hold the key codes
- * @dev - parent device pointer
- * @keystate - present key press/release state
- * @stuckstate - present state when key stuck irq
- * @ctrl_reg - control register value
- */
-struct pmic8xxx_kp {
- const struct pm8xxx_keypad_platform_data *pdata;
- struct input_dev *input;
- int key_sense_irq;
- int key_stuck_irq;
-
- unsigned short keycodes[PM8XXX_MATRIX_MAX_SIZE];
-
- struct device *dev;
- u16 keystate[PM8XXX_MAX_ROWS];
- u16 stuckstate[PM8XXX_MAX_ROWS];
-
- u8 ctrl_reg;
-};
-
-static int pmic8xxx_kp_write_u8(struct pmic8xxx_kp *kp,
- u8 data, u16 reg)
-{
- int rc;
-
- rc = pm8xxx_writeb(kp->dev->parent, reg, data);
- return rc;
-}
-
-static int pmic8xxx_kp_read(struct pmic8xxx_kp *kp,
- u8 *data, u16 reg, unsigned num_bytes)
-{
- int rc;
-
- rc = pm8xxx_read_buf(kp->dev->parent, reg, data, num_bytes);
- return rc;
-}
-
-static int pmic8xxx_kp_read_u8(struct pmic8xxx_kp *kp,
- u8 *data, u16 reg)
-{
- int rc;
-
- rc = pmic8xxx_kp_read(kp, data, reg, 1);
- return rc;
-}
-
-static u8 pmic8xxx_col_state(struct pmic8xxx_kp *kp, u8 col)
-{
- /* all keys pressed on that particular row? */
- if (col == 0x00)
- return 1 << kp->pdata->num_cols;
- else
- return col & ((1 << kp->pdata->num_cols) - 1);
-}
-
-/*
- * Synchronous read protocol for RevB0 onwards:
- *
- * 1. Write '1' to ReadState bit in KEYP_SCAN register
- * 2. Wait 2*32KHz clocks, so that HW can successfully enter read mode
- * synchronously
- * 3. Read rows in old array first if events are more than one
- * 4. Read rows in recent array
- * 5. Wait 4*32KHz clocks
- * 6. Write '0' to ReadState bit of KEYP_SCAN register so that hw can
- * synchronously exit read mode.
- */
-static int pmic8xxx_chk_sync_read(struct pmic8xxx_kp *kp)
-{
- int rc;
- u8 scan_val;
-
- rc = pmic8xxx_kp_read_u8(kp, &scan_val, KEYP_SCAN);
- if (rc < 0) {
- dev_err(kp->dev, "Error reading KEYP_SCAN reg, rc=%d\n", rc);
- return rc;
- }
-
- scan_val |= 0x1;
-
- rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN);
- if (rc < 0) {
- dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc);
- return rc;
- }
-
- /* 2 * 32KHz clocks */
- udelay((2 * DIV_ROUND_UP(USEC_PER_SEC, KEYP_CLOCK_FREQ)) + 1);
-
- return rc;
-}
-
-static int pmic8xxx_kp_read_data(struct pmic8xxx_kp *kp, u16 *state,
- u16 data_reg, int read_rows)
-{
- int rc, row;
- u8 new_data[PM8XXX_MAX_ROWS];
-
- rc = pmic8xxx_kp_read(kp, new_data, data_reg, read_rows);
- if (rc)
- return rc;
-
- for (row = 0; row < kp->pdata->num_rows; row++) {
- dev_dbg(kp->dev, "new_data[%d] = %d\n", row,
- new_data[row]);
- state[row] = pmic8xxx_col_state(kp, new_data[row]);
- }
-
- return rc;
-}
-
-static int pmic8xxx_kp_read_matrix(struct pmic8xxx_kp *kp, u16 *new_state,
- u16 *old_state)
-{
- int rc, read_rows;
- u8 scan_val;
-
- if (kp->pdata->num_rows < PM8XXX_MIN_ROWS)
- read_rows = PM8XXX_MIN_ROWS;
- else
- read_rows = kp->pdata->num_rows;
-
- pmic8xxx_chk_sync_read(kp);
-
- if (old_state) {
- rc = pmic8xxx_kp_read_data(kp, old_state, KEYP_OLD_DATA,
- read_rows);
- if (rc < 0) {
- dev_err(kp->dev,
- "Error reading KEYP_OLD_DATA, rc=%d\n", rc);
- return rc;
- }
- }
-
- rc = pmic8xxx_kp_read_data(kp, new_state, KEYP_RECENT_DATA,
- read_rows);
- if (rc < 0) {
- dev_err(kp->dev,
- "Error reading KEYP_RECENT_DATA, rc=%d\n", rc);
- return rc;
- }
-
- /* 4 * 32KHz clocks */
- udelay((4 * DIV_ROUND_UP(USEC_PER_SEC, KEYP_CLOCK_FREQ)) + 1);
-
- rc = pmic8xxx_kp_read_u8(kp, &scan_val, KEYP_SCAN);
- if (rc < 0) {
- dev_err(kp->dev, "Error reading KEYP_SCAN reg, rc=%d\n", rc);
- return rc;
- }
-
- scan_val &= 0xFE;
- rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN);
- if (rc < 0)
- dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc);
-
- return rc;
-}
-
-static void __pmic8xxx_kp_scan_matrix(struct pmic8xxx_kp *kp, u16 *new_state,
- u16 *old_state)
-{
- int row, col, code;
-
- for (row = 0; row < kp->pdata->num_rows; row++) {
- int bits_changed = new_state[row] ^ old_state[row];
-
- if (!bits_changed)
- continue;
-
- for (col = 0; col < kp->pdata->num_cols; col++) {
- if (!(bits_changed & (1 << col)))
- continue;
-
- dev_dbg(kp->dev, "key [%d:%d] %s\n", row, col,
- !(new_state[row] & (1 << col)) ?
- "pressed" : "released");
-
- code = MATRIX_SCAN_CODE(row, col, PM8XXX_ROW_SHIFT);
-
- input_event(kp->input, EV_MSC, MSC_SCAN, code);
- input_report_key(kp->input,
- kp->keycodes[code],
- !(new_state[row] & (1 << col)));
-
- input_sync(kp->input);
- }
- }
-}
-
-static bool pmic8xxx_detect_ghost_keys(struct pmic8xxx_kp *kp, u16 *new_state)
-{
- int row, found_first = -1;
- u16 check, row_state;
-
- check = 0;
- for (row = 0; row < kp->pdata->num_rows; row++) {
- row_state = (~new_state[row]) &
- ((1 << kp->pdata->num_cols) - 1);
-
- if (hweight16(row_state) > 1) {
- if (found_first == -1)
- found_first = row;
- if (check & row_state) {
- dev_dbg(kp->dev, "detected ghost key on row[%d]"
- " and row[%d]\n", found_first, row);
- return true;
- }
- }
- check |= row_state;
- }
- return false;
-}
-
-static int pmic8xxx_kp_scan_matrix(struct pmic8xxx_kp *kp, unsigned int events)
-{
- u16 new_state[PM8XXX_MAX_ROWS];
- u16 old_state[PM8XXX_MAX_ROWS];
- int rc;
-
- switch (events) {
- case 0x1:
- rc = pmic8xxx_kp_read_matrix(kp, new_state, NULL);
- if (rc < 0)
- return rc;
-
- /* detecting ghost key is not an error */
- if (pmic8xxx_detect_ghost_keys(kp, new_state))
- return 0;
- __pmic8xxx_kp_scan_matrix(kp, new_state, kp->keystate);
- memcpy(kp->keystate, new_state, sizeof(new_state));
- break;
- case 0x3: /* two events - eventcounter is gray-coded */
- rc = pmic8xxx_kp_read_matrix(kp, new_state, old_state);
- if (rc < 0)
- return rc;
-
- __pmic8xxx_kp_scan_matrix(kp, old_state, kp->keystate);
- __pmic8xxx_kp_scan_matrix(kp, new_state, old_state);
- memcpy(kp->keystate, new_state, sizeof(new_state));
- break;
- case 0x2:
- dev_dbg(kp->dev, "Some key events were lost\n");
- rc = pmic8xxx_kp_read_matrix(kp, new_state, old_state);
- if (rc < 0)
- return rc;
- __pmic8xxx_kp_scan_matrix(kp, old_state, kp->keystate);
- __pmic8xxx_kp_scan_matrix(kp, new_state, old_state);
- memcpy(kp->keystate, new_state, sizeof(new_state));
- break;
- default:
- rc = -EINVAL;
- }
- return rc;
-}
-
-/*
- * NOTE: We are reading recent and old data registers blindly
- * whenever key-stuck interrupt happens, because events counter doesn't
- * get updated when this interrupt happens due to key stuck doesn't get
- * considered as key state change.
- *
- * We are not using old data register contents after they are being read
- * because it might report the key which was pressed before the key being stuck
- * as stuck key because it's pressed status is stored in the old data
- * register.
- */
-static irqreturn_t pmic8xxx_kp_stuck_irq(int irq, void *data)
-{
- u16 new_state[PM8XXX_MAX_ROWS];
- u16 old_state[PM8XXX_MAX_ROWS];
- int rc;
- struct pmic8xxx_kp *kp = data;
-
- rc = pmic8xxx_kp_read_matrix(kp, new_state, old_state);
- if (rc < 0) {
- dev_err(kp->dev, "failed to read keypad matrix\n");
- return IRQ_HANDLED;
- }
-
- __pmic8xxx_kp_scan_matrix(kp, new_state, kp->stuckstate);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t pmic8xxx_kp_irq(int irq, void *data)
-{
- struct pmic8xxx_kp *kp = data;
- u8 ctrl_val, events;
- int rc;
-
- rc = pmic8xxx_kp_read(kp, &ctrl_val, KEYP_CTRL, 1);
- if (rc < 0) {
- dev_err(kp->dev, "failed to read keyp_ctrl register\n");
- return IRQ_HANDLED;
- }
-
- events = ctrl_val & KEYP_CTRL_EVNTS_MASK;
-
- rc = pmic8xxx_kp_scan_matrix(kp, events);
- if (rc < 0)
- dev_err(kp->dev, "failed to scan matrix\n");
-
- return IRQ_HANDLED;
-}
-
-static int __devinit pmic8xxx_kpd_init(struct pmic8xxx_kp *kp)
-{
- int bits, rc, cycles;
- u8 scan_val = 0, ctrl_val = 0;
- static const u8 row_bits[] = {
- 0, 1, 2, 3, 4, 4, 5, 5, 6, 6, 6, 7, 7, 7,
- };
-
- /* Find column bits */
- if (kp->pdata->num_cols < KEYP_CTRL_SCAN_COLS_MIN)
- bits = 0;
- else
- bits = kp->pdata->num_cols - KEYP_CTRL_SCAN_COLS_MIN;
- ctrl_val = (bits & KEYP_CTRL_SCAN_COLS_BITS) <<
- KEYP_CTRL_SCAN_COLS_SHIFT;
-
- /* Find row bits */
- if (kp->pdata->num_rows < KEYP_CTRL_SCAN_ROWS_MIN)
- bits = 0;
- else
- bits = row_bits[kp->pdata->num_rows - KEYP_CTRL_SCAN_ROWS_MIN];
-
- ctrl_val |= (bits << KEYP_CTRL_SCAN_ROWS_SHIFT);
-
- rc = pmic8xxx_kp_write_u8(kp, ctrl_val, KEYP_CTRL);
- if (rc < 0) {
- dev_err(kp->dev, "Error writing KEYP_CTRL reg, rc=%d\n", rc);
- return rc;
- }
-
- bits = (kp->pdata->debounce_ms / 5) - 1;
-
- scan_val |= (bits << KEYP_SCAN_DBOUNCE_SHIFT);
-
- bits = fls(kp->pdata->scan_delay_ms) - 1;
- scan_val |= (bits << KEYP_SCAN_PAUSE_SHIFT);
-
- /* Row hold time is a multiple of 32KHz cycles. */
- cycles = (kp->pdata->row_hold_ns * KEYP_CLOCK_FREQ) / NSEC_PER_SEC;
-
- scan_val |= (cycles << KEYP_SCAN_ROW_HOLD_SHIFT);
-
- rc = pmic8xxx_kp_write_u8(kp, scan_val, KEYP_SCAN);
- if (rc)
- dev_err(kp->dev, "Error writing KEYP_SCAN reg, rc=%d\n", rc);
-
- return rc;
-
-}
-
-static int __devinit pmic8xxx_kp_config_gpio(int gpio_start, int num_gpios,
- struct pmic8xxx_kp *kp, struct pm_gpio *gpio_config)
-{
- int rc, i;
-
- if (gpio_start < 0 || num_gpios < 0)
- return -EINVAL;
-
- for (i = 0; i < num_gpios; i++) {
- rc = pm8xxx_gpio_config(gpio_start + i, gpio_config);
- if (rc) {
- dev_err(kp->dev, "%s: FAIL pm8xxx_gpio_config():"
- "for PM GPIO [%d] rc=%d.\n",
- __func__, gpio_start + i, rc);
- return rc;
- }
- }
-
- return 0;
-}
-
-static int pmic8xxx_kp_enable(struct pmic8xxx_kp *kp)
-{
- int rc;
-
- kp->ctrl_reg |= KEYP_CTRL_KEYP_EN;
-
- rc = pmic8xxx_kp_write_u8(kp, kp->ctrl_reg, KEYP_CTRL);
- if (rc < 0)
- dev_err(kp->dev, "Error writing KEYP_CTRL reg, rc=%d\n", rc);
-
- return rc;
-}
-
-static int pmic8xxx_kp_disable(struct pmic8xxx_kp *kp)
-{
- int rc;
-
- kp->ctrl_reg &= ~KEYP_CTRL_KEYP_EN;
-
- rc = pmic8xxx_kp_write_u8(kp, kp->ctrl_reg, KEYP_CTRL);
- if (rc < 0)
- return rc;
-
- return rc;
-}
-
-static int pmic8xxx_kp_open(struct input_dev *dev)
-{
- struct pmic8xxx_kp *kp = input_get_drvdata(dev);
-
- return pmic8xxx_kp_enable(kp);
-}
-
-static void pmic8xxx_kp_close(struct input_dev *dev)
-{
- struct pmic8xxx_kp *kp = input_get_drvdata(dev);
-
- pmic8xxx_kp_disable(kp);
-}
-
-/*
- * keypad controller should be initialized in the following sequence
- * only, otherwise it might get into FSM stuck state.
- *
- * - Initialize keypad control parameters, like no. of rows, columns,
- * timing values etc.,
- * - configure rows and column gpios pull up/down.
- * - set irq edge type.
- * - enable the keypad controller.
- */
-static int __devinit pmic8xxx_kp_probe(struct platform_device *pdev)
-{
- const struct pm8xxx_keypad_platform_data *pdata =
- dev_get_platdata(&pdev->dev);
- const struct matrix_keymap_data *keymap_data;
- struct pmic8xxx_kp *kp;
- int rc;
- u8 ctrl_val;
-
- struct pm_gpio kypd_drv = {
- .direction = PM_GPIO_DIR_OUT,
- .output_buffer = PM_GPIO_OUT_BUF_OPEN_DRAIN,
- .output_value = 0,
- .pull = PM_GPIO_PULL_NO,
- .vin_sel = PM_GPIO_VIN_S3,
- .out_strength = PM_GPIO_STRENGTH_LOW,
- .function = PM_GPIO_FUNC_1,
- .inv_int_pol = 1,
- };
-
- struct pm_gpio kypd_sns = {
- .direction = PM_GPIO_DIR_IN,
- .pull = PM_GPIO_PULL_UP_31P5,
- .vin_sel = PM_GPIO_VIN_S3,
- .out_strength = PM_GPIO_STRENGTH_NO,
- .function = PM_GPIO_FUNC_NORMAL,
- .inv_int_pol = 1,
- };
-
-
- if (!pdata || !pdata->num_cols || !pdata->num_rows ||
- pdata->num_cols > PM8XXX_MAX_COLS ||
- pdata->num_rows > PM8XXX_MAX_ROWS ||
- pdata->num_cols < PM8XXX_MIN_COLS) {
- dev_err(&pdev->dev, "invalid platform data\n");
- return -EINVAL;
- }
-
- if (!pdata->scan_delay_ms ||
- pdata->scan_delay_ms > MAX_SCAN_DELAY ||
- pdata->scan_delay_ms < MIN_SCAN_DELAY ||
- !is_power_of_2(pdata->scan_delay_ms)) {
- dev_err(&pdev->dev, "invalid keypad scan time supplied\n");
- return -EINVAL;
- }
-
- if (!pdata->row_hold_ns ||
- pdata->row_hold_ns > MAX_ROW_HOLD_DELAY ||
- pdata->row_hold_ns < MIN_ROW_HOLD_DELAY ||
- ((pdata->row_hold_ns % MIN_ROW_HOLD_DELAY) != 0)) {
- dev_err(&pdev->dev, "invalid keypad row hold time supplied\n");
- return -EINVAL;
- }
-
- if (!pdata->debounce_ms ||
- ((pdata->debounce_ms % 5) != 0) ||
- pdata->debounce_ms > MAX_DEBOUNCE_TIME ||
- pdata->debounce_ms < MIN_DEBOUNCE_TIME) {
- dev_err(&pdev->dev, "invalid debounce time supplied\n");
- return -EINVAL;
- }
-
- keymap_data = pdata->keymap_data;
- if (!keymap_data) {
- dev_err(&pdev->dev, "no keymap data supplied\n");
- return -EINVAL;
- }
-
- kp = kzalloc(sizeof(*kp), GFP_KERNEL);
- if (!kp)
- return -ENOMEM;
-
- platform_set_drvdata(pdev, kp);
-
- kp->pdata = pdata;
- kp->dev = &pdev->dev;
-
- kp->input = input_allocate_device();
- if (!kp->input) {
- dev_err(&pdev->dev, "unable to allocate input device\n");
- rc = -ENOMEM;
- goto err_alloc_device;
- }
-
- kp->key_sense_irq = platform_get_irq(pdev, 0);
- if (kp->key_sense_irq < 0) {
- dev_err(&pdev->dev, "unable to get keypad sense irq\n");
- rc = -ENXIO;
- goto err_get_irq;
- }
-
- kp->key_stuck_irq = platform_get_irq(pdev, 1);
- if (kp->key_stuck_irq < 0) {
- dev_err(&pdev->dev, "unable to get keypad stuck irq\n");
- rc = -ENXIO;
- goto err_get_irq;
- }
-
- kp->input->name = pdata->input_name ? : "PMIC8XXX keypad";
- kp->input->phys = pdata->input_phys_device ? : "pmic8xxx_keypad/input0";
-
- kp->input->dev.parent = &pdev->dev;
-
- kp->input->id.bustype = BUS_I2C;
- kp->input->id.version = 0x0001;
- kp->input->id.product = 0x0001;
- kp->input->id.vendor = 0x0001;
-
- kp->input->evbit[0] = BIT_MASK(EV_KEY);
-
- if (pdata->rep)
- __set_bit(EV_REP, kp->input->evbit);
-
- kp->input->keycode = kp->keycodes;
- kp->input->keycodemax = PM8XXX_MATRIX_MAX_SIZE;
- kp->input->keycodesize = sizeof(kp->keycodes);
- kp->input->open = pmic8xxx_kp_open;
- kp->input->close = pmic8xxx_kp_close;
-
- matrix_keypad_build_keymap(keymap_data, PM8XXX_ROW_SHIFT,
- kp->input->keycode, kp->input->keybit);
-
- input_set_capability(kp->input, EV_MSC, MSC_SCAN);
- input_set_drvdata(kp->input, kp);
-
- /* initialize keypad state */
- memset(kp->keystate, 0xff, sizeof(kp->keystate));
- memset(kp->stuckstate, 0xff, sizeof(kp->stuckstate));
-
- rc = pmic8xxx_kpd_init(kp);
- if (rc < 0) {
- dev_err(&pdev->dev, "unable to initialize keypad controller\n");
- goto err_get_irq;
- }
-
- rc = pmic8xxx_kp_config_gpio(pdata->cols_gpio_start,
- pdata->num_cols, kp, &kypd_sns);
- if (rc < 0) {
- dev_err(&pdev->dev, "unable to configure keypad sense lines\n");
- goto err_gpio_config;
- }
-
- rc = pmic8xxx_kp_config_gpio(pdata->rows_gpio_start,
- pdata->num_rows, kp, &kypd_drv);
- if (rc < 0) {
- dev_err(&pdev->dev, "unable to configure keypad drive lines\n");
- goto err_gpio_config;
- }
-
- rc = request_any_context_irq(kp->key_sense_irq, pmic8xxx_kp_irq,
- IRQF_TRIGGER_RISING, "pmic-keypad", kp);
- if (rc < 0) {
- dev_err(&pdev->dev, "failed to request keypad sense irq\n");
- goto err_get_irq;
- }
-
- rc = request_any_context_irq(kp->key_stuck_irq, pmic8xxx_kp_stuck_irq,
- IRQF_TRIGGER_RISING, "pmic-keypad-stuck", kp);
- if (rc < 0) {
- dev_err(&pdev->dev, "failed to request keypad stuck irq\n");
- goto err_req_stuck_irq;
- }
-
- rc = pmic8xxx_kp_read_u8(kp, &ctrl_val, KEYP_CTRL);
- if (rc < 0) {
- dev_err(&pdev->dev, "failed to read KEYP_CTRL register\n");
- goto err_pmic_reg_read;
- }
-
- kp->ctrl_reg = ctrl_val;
-
- rc = input_register_device(kp->input);
- if (rc < 0) {
- dev_err(&pdev->dev, "unable to register keypad input device\n");
- goto err_pmic_reg_read;
- }
-
- device_init_wakeup(&pdev->dev, pdata->wakeup);
-
- return 0;
-
-err_pmic_reg_read:
- free_irq(kp->key_stuck_irq, kp);
-err_req_stuck_irq:
- free_irq(kp->key_sense_irq, kp);
-err_gpio_config:
-err_get_irq:
- input_free_device(kp->input);
-err_alloc_device:
- platform_set_drvdata(pdev, NULL);
- kfree(kp);
- return rc;
-}
-
-static int __devexit pmic8xxx_kp_remove(struct platform_device *pdev)
-{
- struct pmic8xxx_kp *kp = platform_get_drvdata(pdev);
-
- device_init_wakeup(&pdev->dev, 0);
- free_irq(kp->key_stuck_irq, kp);
- free_irq(kp->key_sense_irq, kp);
- input_unregister_device(kp->input);
- kfree(kp);
-
- platform_set_drvdata(pdev, NULL);
- return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int pmic8xxx_kp_suspend(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct pmic8xxx_kp *kp = platform_get_drvdata(pdev);
- struct input_dev *input_dev = kp->input;
-
- if (device_may_wakeup(dev)) {
- enable_irq_wake(kp->key_sense_irq);
- } else {
- mutex_lock(&input_dev->mutex);
-
- if (input_dev->users)
- pmic8xxx_kp_disable(kp);
-
- mutex_unlock(&input_dev->mutex);
- }
-
- return 0;
-}
-
-static int pmic8xxx_kp_resume(struct device *dev)
-{
- struct platform_device *pdev = to_platform_device(dev);
- struct pmic8xxx_kp *kp = platform_get_drvdata(pdev);
- struct input_dev *input_dev = kp->input;
-
- if (device_may_wakeup(dev)) {
- disable_irq_wake(kp->key_sense_irq);
- } else {
- mutex_lock(&input_dev->mutex);
-
- if (input_dev->users)
- pmic8xxx_kp_enable(kp);
-
- mutex_unlock(&input_dev->mutex);
- }
-
- return 0;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(pm8xxx_kp_pm_ops,
- pmic8xxx_kp_suspend, pmic8xxx_kp_resume);
-
-static struct platform_driver pmic8xxx_kp_driver = {
- .probe = pmic8xxx_kp_probe,
- .remove = __devexit_p(pmic8xxx_kp_remove),
- .driver = {
- .name = PM8XXX_KEYPAD_DEV_NAME,
- .owner = THIS_MODULE,
- .pm = &pm8xxx_kp_pm_ops,
- },
-};
-module_platform_driver(pmic8xxx_kp_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("PMIC8XXX keypad driver");
-MODULE_VERSION("1.0");
-MODULE_ALIAS("platform:pmic8xxx_keypad");
-MODULE_AUTHOR("Trilok Soni <tsoni@codeaurora.org>");