Input: remove obsolete tnetv107x drivers
The tnetv107x platform is getting removed, so the touchscreen and keypad drivers for this platform will no longer be needed either. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sekhar Nori <nsekhar@ti.com> Acked-by: Kevin Hilman <khilman@linaro.org> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: linux-input@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Родитель
9732e5b0bf
Коммит
e545ef39e0
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@ -595,16 +595,6 @@ config KEYBOARD_TC3589X
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To compile this driver as a module, choose M here: the
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module will be called tc3589x-keypad.
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config KEYBOARD_TNETV107X
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tristate "TI TNETV107X keypad support"
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depends on ARCH_DAVINCI_TNETV107X
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select INPUT_MATRIXKMAP
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help
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Say Y here if you want to use the TNETV107X keypad.
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To compile this driver as a module, choose M here: the
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module will be called tnetv107x-keypad.
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config KEYBOARD_TWL4030
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tristate "TI TWL4030/TWL5030/TPS659x0 keypad support"
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depends on TWL4030_CORE
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@ -53,7 +53,6 @@ obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
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obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd.o
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obj-$(CONFIG_KEYBOARD_TC3589X) += tc3589x-keypad.o
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obj-$(CONFIG_KEYBOARD_TEGRA) += tegra-kbc.o
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obj-$(CONFIG_KEYBOARD_TNETV107X) += tnetv107x-keypad.o
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obj-$(CONFIG_KEYBOARD_TWL4030) += twl4030_keypad.o
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obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o
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obj-$(CONFIG_KEYBOARD_W90P910) += w90p910_keypad.o
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@ -1,329 +0,0 @@
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/*
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* Texas Instruments TNETV107X Keypad Driver
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*
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* Copyright (C) 2010 Texas Instruments
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/err.h>
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#include <linux/errno.h>
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#include <linux/input.h>
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#include <linux/platform_device.h>
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#include <linux/interrupt.h>
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/io.h>
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#include <linux/clk.h>
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#include <linux/input/matrix_keypad.h>
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#include <linux/module.h>
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#define BITS(x) (BIT(x) - 1)
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#define KEYPAD_ROWS 9
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#define KEYPAD_COLS 9
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#define DEBOUNCE_MIN 0x400ul
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#define DEBOUNCE_MAX 0x3ffffffful
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struct keypad_regs {
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u32 rev;
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u32 mode;
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u32 mask;
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u32 pol;
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u32 dclock;
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u32 rclock;
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u32 stable_cnt;
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u32 in_en;
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u32 out;
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u32 out_en;
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u32 in;
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u32 lock;
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u32 pres[3];
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};
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#define keypad_read(kp, reg) __raw_readl(&(kp)->regs->reg)
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#define keypad_write(kp, reg, val) __raw_writel(val, &(kp)->regs->reg)
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struct keypad_data {
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struct input_dev *input_dev;
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struct resource *res;
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struct keypad_regs __iomem *regs;
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struct clk *clk;
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struct device *dev;
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spinlock_t lock;
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int irq_press;
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int irq_release;
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int rows, cols, row_shift;
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int debounce_ms, active_low;
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u32 prev_keys[3];
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unsigned short keycodes[];
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};
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static irqreturn_t keypad_irq(int irq, void *data)
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{
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struct keypad_data *kp = data;
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int i, bit, val, row, col, code;
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unsigned long flags;
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u32 curr_keys[3];
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u32 change;
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spin_lock_irqsave(&kp->lock, flags);
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memset(curr_keys, 0, sizeof(curr_keys));
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if (irq == kp->irq_press)
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for (i = 0; i < 3; i++)
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curr_keys[i] = keypad_read(kp, pres[i]);
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for (i = 0; i < 3; i++) {
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change = curr_keys[i] ^ kp->prev_keys[i];
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while (change) {
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bit = fls(change) - 1;
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change ^= BIT(bit);
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val = curr_keys[i] & BIT(bit);
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bit += i * 32;
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row = bit / KEYPAD_COLS;
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col = bit % KEYPAD_COLS;
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code = MATRIX_SCAN_CODE(row, col, kp->row_shift);
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input_event(kp->input_dev, EV_MSC, MSC_SCAN, code);
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input_report_key(kp->input_dev, kp->keycodes[code],
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val);
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}
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}
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input_sync(kp->input_dev);
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memcpy(kp->prev_keys, curr_keys, sizeof(curr_keys));
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if (irq == kp->irq_press)
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keypad_write(kp, lock, 0); /* Allow hardware updates */
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spin_unlock_irqrestore(&kp->lock, flags);
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return IRQ_HANDLED;
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}
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static int keypad_start(struct input_dev *dev)
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{
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struct keypad_data *kp = input_get_drvdata(dev);
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unsigned long mask, debounce, clk_rate_khz;
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unsigned long flags;
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clk_enable(kp->clk);
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clk_rate_khz = clk_get_rate(kp->clk) / 1000;
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spin_lock_irqsave(&kp->lock, flags);
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/* Initialize device registers */
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keypad_write(kp, mode, 0);
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mask = BITS(kp->rows) << KEYPAD_COLS;
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mask |= BITS(kp->cols);
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keypad_write(kp, mask, ~mask);
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keypad_write(kp, pol, kp->active_low ? 0 : 0x3ffff);
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keypad_write(kp, stable_cnt, 3);
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debounce = kp->debounce_ms * clk_rate_khz;
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debounce = clamp(debounce, DEBOUNCE_MIN, DEBOUNCE_MAX);
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keypad_write(kp, dclock, debounce);
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keypad_write(kp, rclock, 4 * debounce);
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keypad_write(kp, in_en, 1);
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spin_unlock_irqrestore(&kp->lock, flags);
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return 0;
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}
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static void keypad_stop(struct input_dev *dev)
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{
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struct keypad_data *kp = input_get_drvdata(dev);
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synchronize_irq(kp->irq_press);
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synchronize_irq(kp->irq_release);
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clk_disable(kp->clk);
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}
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static int keypad_probe(struct platform_device *pdev)
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{
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const struct matrix_keypad_platform_data *pdata;
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const struct matrix_keymap_data *keymap_data;
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struct device *dev = &pdev->dev;
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struct keypad_data *kp;
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int error = 0, sz, row_shift;
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u32 rev = 0;
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pdata = dev_get_platdata(&pdev->dev);
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if (!pdata) {
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dev_err(dev, "cannot find device data\n");
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return -EINVAL;
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}
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keymap_data = pdata->keymap_data;
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if (!keymap_data) {
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dev_err(dev, "cannot find keymap data\n");
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return -EINVAL;
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}
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row_shift = get_count_order(pdata->num_col_gpios);
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sz = offsetof(struct keypad_data, keycodes);
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sz += (pdata->num_row_gpios << row_shift) * sizeof(kp->keycodes[0]);
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kp = kzalloc(sz, GFP_KERNEL);
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if (!kp) {
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dev_err(dev, "cannot allocate device info\n");
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return -ENOMEM;
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}
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kp->dev = dev;
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kp->rows = pdata->num_row_gpios;
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kp->cols = pdata->num_col_gpios;
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kp->row_shift = row_shift;
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platform_set_drvdata(pdev, kp);
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spin_lock_init(&kp->lock);
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kp->irq_press = platform_get_irq_byname(pdev, "press");
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kp->irq_release = platform_get_irq_byname(pdev, "release");
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if (kp->irq_press < 0 || kp->irq_release < 0) {
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dev_err(dev, "cannot determine device interrupts\n");
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error = -ENODEV;
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goto error_res;
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}
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kp->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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if (!kp->res) {
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dev_err(dev, "cannot determine register area\n");
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error = -ENODEV;
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goto error_res;
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}
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if (!request_mem_region(kp->res->start, resource_size(kp->res),
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pdev->name)) {
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dev_err(dev, "cannot claim register memory\n");
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kp->res = NULL;
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error = -EINVAL;
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goto error_res;
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}
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kp->regs = ioremap(kp->res->start, resource_size(kp->res));
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if (!kp->regs) {
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dev_err(dev, "cannot map register memory\n");
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error = -ENOMEM;
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goto error_map;
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}
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kp->clk = clk_get(dev, NULL);
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if (IS_ERR(kp->clk)) {
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dev_err(dev, "cannot claim device clock\n");
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error = PTR_ERR(kp->clk);
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goto error_clk;
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}
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error = request_threaded_irq(kp->irq_press, NULL, keypad_irq,
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IRQF_ONESHOT, dev_name(dev), kp);
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if (error < 0) {
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dev_err(kp->dev, "Could not allocate keypad press key irq\n");
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goto error_irq_press;
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}
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error = request_threaded_irq(kp->irq_release, NULL, keypad_irq,
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IRQF_ONESHOT, dev_name(dev), kp);
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if (error < 0) {
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dev_err(kp->dev, "Could not allocate keypad release key irq\n");
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goto error_irq_release;
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}
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kp->input_dev = input_allocate_device();
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if (!kp->input_dev) {
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dev_err(dev, "cannot allocate input device\n");
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error = -ENOMEM;
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goto error_input;
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}
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kp->input_dev->name = pdev->name;
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kp->input_dev->dev.parent = &pdev->dev;
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kp->input_dev->open = keypad_start;
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kp->input_dev->close = keypad_stop;
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clk_enable(kp->clk);
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rev = keypad_read(kp, rev);
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kp->input_dev->id.bustype = BUS_HOST;
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kp->input_dev->id.product = ((rev >> 8) & 0x07);
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kp->input_dev->id.version = ((rev >> 16) & 0xfff);
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clk_disable(kp->clk);
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error = matrix_keypad_build_keymap(keymap_data, NULL,
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kp->rows, kp->cols,
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kp->keycodes, kp->input_dev);
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if (error) {
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dev_err(dev, "Failed to build keymap\n");
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goto error_reg;
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}
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if (!pdata->no_autorepeat)
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kp->input_dev->evbit[0] |= BIT_MASK(EV_REP);
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input_set_capability(kp->input_dev, EV_MSC, MSC_SCAN);
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input_set_drvdata(kp->input_dev, kp);
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error = input_register_device(kp->input_dev);
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if (error < 0) {
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dev_err(dev, "Could not register input device\n");
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goto error_reg;
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}
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return 0;
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error_reg:
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input_free_device(kp->input_dev);
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error_input:
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free_irq(kp->irq_release, kp);
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error_irq_release:
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free_irq(kp->irq_press, kp);
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error_irq_press:
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clk_put(kp->clk);
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error_clk:
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iounmap(kp->regs);
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error_map:
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release_mem_region(kp->res->start, resource_size(kp->res));
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error_res:
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kfree(kp);
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return error;
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}
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static int keypad_remove(struct platform_device *pdev)
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{
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struct keypad_data *kp = platform_get_drvdata(pdev);
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free_irq(kp->irq_press, kp);
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free_irq(kp->irq_release, kp);
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input_unregister_device(kp->input_dev);
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clk_put(kp->clk);
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iounmap(kp->regs);
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release_mem_region(kp->res->start, resource_size(kp->res));
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kfree(kp);
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return 0;
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}
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static struct platform_driver keypad_driver = {
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.probe = keypad_probe,
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.remove = keypad_remove,
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.driver.name = "tnetv107x-keypad",
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.driver.owner = THIS_MODULE,
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};
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module_platform_driver(keypad_driver);
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MODULE_AUTHOR("Cyril Chemparathy");
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MODULE_DESCRIPTION("TNETV107X Keypad Driver");
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MODULE_ALIAS("platform:tnetv107x-keypad");
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MODULE_LICENSE("GPL");
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@ -514,15 +514,6 @@ config TOUCHSCREEN_MIGOR
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To compile this driver as a module, choose M here: the
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module will be called migor_ts.
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config TOUCHSCREEN_TNETV107X
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tristate "TI TNETV107X touchscreen support"
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depends on ARCH_DAVINCI_TNETV107X
|
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help
|
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Say Y here if you want to use the TNETV107X touchscreen.
|
||||
|
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To compile this driver as a module, choose M here: the
|
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module will be called tnetv107x-ts.
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config TOUCHSCREEN_TOUCHRIGHT
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tristate "Touchright serial touchscreen"
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select SERIO
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|
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|
@ -56,7 +56,6 @@ obj-$(CONFIG_TOUCHSCREEN_ST1232) += st1232.o
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obj-$(CONFIG_TOUCHSCREEN_STMPE) += stmpe-ts.o
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obj-$(CONFIG_TOUCHSCREEN_SUR40) += sur40.o
|
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obj-$(CONFIG_TOUCHSCREEN_TI_AM335X_TSC) += ti_am335x_tsc.o
|
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obj-$(CONFIG_TOUCHSCREEN_TNETV107X) += tnetv107x-ts.o
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obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213) += touchit213.o
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obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT) += touchright.o
|
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obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN) += touchwin.o
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|
|
|
@ -1,384 +0,0 @@
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/*
|
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* Texas Instruments TNETV107X Touchscreen Driver
|
||||
*
|
||||
* Copyright (C) 2010 Texas Instruments
|
||||
*
|
||||
* 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 version 2.
|
||||
*
|
||||
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
|
||||
* kind, whether express or implied; 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/kernel.h>
|
||||
#include <linux/err.h>
|
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#include <linux/errno.h>
|
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#include <linux/input.h>
|
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#include <linux/platform_device.h>
|
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#include <linux/interrupt.h>
|
||||
#include <linux/slab.h>
|
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#include <linux/delay.h>
|
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#include <linux/ctype.h>
|
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#include <linux/io.h>
|
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#include <linux/clk.h>
|
||||
|
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#include <mach/tnetv107x.h>
|
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|
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#define TSC_PENUP_POLL (HZ / 5)
|
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#define IDLE_TIMEOUT 100 /* msec */
|
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|
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/*
|
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* The first and last samples of a touch interval are usually garbage and need
|
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* to be filtered out with these devices. The following definitions control
|
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* the number of samples skipped.
|
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*/
|
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#define TSC_HEAD_SKIP 1
|
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#define TSC_TAIL_SKIP 1
|
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#define TSC_SKIP (TSC_HEAD_SKIP + TSC_TAIL_SKIP + 1)
|
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#define TSC_SAMPLES (TSC_SKIP + 1)
|
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|
||||
/* Register Offsets */
|
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struct tsc_regs {
|
||||
u32 rev;
|
||||
u32 tscm;
|
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u32 bwcm;
|
||||
u32 swc;
|
||||
u32 adcchnl;
|
||||
u32 adcdata;
|
||||
u32 chval[4];
|
||||
};
|
||||
|
||||
/* TSC Mode Configuration Register (tscm) bits */
|
||||
#define WMODE BIT(0)
|
||||
#define TSKIND BIT(1)
|
||||
#define ZMEASURE_EN BIT(2)
|
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#define IDLE BIT(3)
|
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#define TSC_EN BIT(4)
|
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#define STOP BIT(5)
|
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#define ONE_SHOT BIT(6)
|
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#define SINGLE BIT(7)
|
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#define AVG BIT(8)
|
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#define AVGNUM(x) (((x) & 0x03) << 9)
|
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#define PVSTC(x) (((x) & 0x07) << 11)
|
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#define PON BIT(14)
|
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#define PONBG BIT(15)
|
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#define AFERST BIT(16)
|
||||
|
||||
/* ADC DATA Capture Register bits */
|
||||
#define DATA_VALID BIT(16)
|
||||
|
||||
/* Register Access Macros */
|
||||
#define tsc_read(ts, reg) __raw_readl(&(ts)->regs->reg)
|
||||
#define tsc_write(ts, reg, val) __raw_writel(val, &(ts)->regs->reg);
|
||||
#define tsc_set_bits(ts, reg, val) \
|
||||
tsc_write(ts, reg, tsc_read(ts, reg) | (val))
|
||||
#define tsc_clr_bits(ts, reg, val) \
|
||||
tsc_write(ts, reg, tsc_read(ts, reg) & ~(val))
|
||||
|
||||
struct sample {
|
||||
int x, y, p;
|
||||
};
|
||||
|
||||
struct tsc_data {
|
||||
struct input_dev *input_dev;
|
||||
struct resource *res;
|
||||
struct tsc_regs __iomem *regs;
|
||||
struct timer_list timer;
|
||||
spinlock_t lock;
|
||||
struct clk *clk;
|
||||
struct device *dev;
|
||||
int sample_count;
|
||||
struct sample samples[TSC_SAMPLES];
|
||||
int tsc_irq;
|
||||
};
|
||||
|
||||
static int tsc_read_sample(struct tsc_data *ts, struct sample* sample)
|
||||
{
|
||||
int x, y, z1, z2, t, p = 0;
|
||||
u32 val;
|
||||
|
||||
val = tsc_read(ts, chval[0]);
|
||||
if (val & DATA_VALID)
|
||||
x = val & 0xffff;
|
||||
else
|
||||
return -EINVAL;
|
||||
|
||||
y = tsc_read(ts, chval[1]) & 0xffff;
|
||||
z1 = tsc_read(ts, chval[2]) & 0xffff;
|
||||
z2 = tsc_read(ts, chval[3]) & 0xffff;
|
||||
|
||||
if (z1) {
|
||||
t = ((600 * x) * (z2 - z1));
|
||||
p = t / (u32) (z1 << 12);
|
||||
if (p < 0)
|
||||
p = 0;
|
||||
}
|
||||
|
||||
sample->x = x;
|
||||
sample->y = y;
|
||||
sample->p = p;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void tsc_poll(unsigned long data)
|
||||
{
|
||||
struct tsc_data *ts = (struct tsc_data *)data;
|
||||
unsigned long flags;
|
||||
int i, val, x, y, p;
|
||||
|
||||
spin_lock_irqsave(&ts->lock, flags);
|
||||
|
||||
if (ts->sample_count >= TSC_SKIP) {
|
||||
input_report_abs(ts->input_dev, ABS_PRESSURE, 0);
|
||||
input_report_key(ts->input_dev, BTN_TOUCH, 0);
|
||||
input_sync(ts->input_dev);
|
||||
} else if (ts->sample_count > 0) {
|
||||
/*
|
||||
* A touch event lasted less than our skip count. Salvage and
|
||||
* report anyway.
|
||||
*/
|
||||
for (i = 0, val = 0; i < ts->sample_count; i++)
|
||||
val += ts->samples[i].x;
|
||||
x = val / ts->sample_count;
|
||||
|
||||
for (i = 0, val = 0; i < ts->sample_count; i++)
|
||||
val += ts->samples[i].y;
|
||||
y = val / ts->sample_count;
|
||||
|
||||
for (i = 0, val = 0; i < ts->sample_count; i++)
|
||||
val += ts->samples[i].p;
|
||||
p = val / ts->sample_count;
|
||||
|
||||
input_report_abs(ts->input_dev, ABS_X, x);
|
||||
input_report_abs(ts->input_dev, ABS_Y, y);
|
||||
input_report_abs(ts->input_dev, ABS_PRESSURE, p);
|
||||
input_report_key(ts->input_dev, BTN_TOUCH, 1);
|
||||
input_sync(ts->input_dev);
|
||||
}
|
||||
|
||||
ts->sample_count = 0;
|
||||
|
||||
spin_unlock_irqrestore(&ts->lock, flags);
|
||||
}
|
||||
|
||||
static irqreturn_t tsc_irq(int irq, void *dev_id)
|
||||
{
|
||||
struct tsc_data *ts = (struct tsc_data *)dev_id;
|
||||
struct sample *sample;
|
||||
int index;
|
||||
|
||||
spin_lock(&ts->lock);
|
||||
|
||||
index = ts->sample_count % TSC_SAMPLES;
|
||||
sample = &ts->samples[index];
|
||||
if (tsc_read_sample(ts, sample) < 0)
|
||||
goto out;
|
||||
|
||||
if (++ts->sample_count >= TSC_SKIP) {
|
||||
index = (ts->sample_count - TSC_TAIL_SKIP - 1) % TSC_SAMPLES;
|
||||
sample = &ts->samples[index];
|
||||
|
||||
input_report_abs(ts->input_dev, ABS_X, sample->x);
|
||||
input_report_abs(ts->input_dev, ABS_Y, sample->y);
|
||||
input_report_abs(ts->input_dev, ABS_PRESSURE, sample->p);
|
||||
if (ts->sample_count == TSC_SKIP)
|
||||
input_report_key(ts->input_dev, BTN_TOUCH, 1);
|
||||
input_sync(ts->input_dev);
|
||||
}
|
||||
mod_timer(&ts->timer, jiffies + TSC_PENUP_POLL);
|
||||
out:
|
||||
spin_unlock(&ts->lock);
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static int tsc_start(struct input_dev *dev)
|
||||
{
|
||||
struct tsc_data *ts = input_get_drvdata(dev);
|
||||
unsigned long timeout = jiffies + msecs_to_jiffies(IDLE_TIMEOUT);
|
||||
u32 val;
|
||||
|
||||
clk_enable(ts->clk);
|
||||
|
||||
/* Go to idle mode, before any initialization */
|
||||
while (time_after(timeout, jiffies)) {
|
||||
if (tsc_read(ts, tscm) & IDLE)
|
||||
break;
|
||||
}
|
||||
|
||||
if (time_before(timeout, jiffies)) {
|
||||
dev_warn(ts->dev, "timeout waiting for idle\n");
|
||||
clk_disable(ts->clk);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/* Configure TSC Control register*/
|
||||
val = (PONBG | PON | PVSTC(4) | ONE_SHOT | ZMEASURE_EN);
|
||||
tsc_write(ts, tscm, val);
|
||||
|
||||
/* Bring TSC out of reset: Clear AFE reset bit */
|
||||
val &= ~(AFERST);
|
||||
tsc_write(ts, tscm, val);
|
||||
|
||||
/* Configure all pins for hardware control*/
|
||||
tsc_write(ts, bwcm, 0);
|
||||
|
||||
/* Finally enable the TSC */
|
||||
tsc_set_bits(ts, tscm, TSC_EN);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void tsc_stop(struct input_dev *dev)
|
||||
{
|
||||
struct tsc_data *ts = input_get_drvdata(dev);
|
||||
|
||||
tsc_clr_bits(ts, tscm, TSC_EN);
|
||||
synchronize_irq(ts->tsc_irq);
|
||||
del_timer_sync(&ts->timer);
|
||||
clk_disable(ts->clk);
|
||||
}
|
||||
|
||||
static int tsc_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct tsc_data *ts;
|
||||
int error = 0;
|
||||
u32 rev = 0;
|
||||
|
||||
ts = kzalloc(sizeof(struct tsc_data), GFP_KERNEL);
|
||||
if (!ts) {
|
||||
dev_err(dev, "cannot allocate device info\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
ts->dev = dev;
|
||||
spin_lock_init(&ts->lock);
|
||||
setup_timer(&ts->timer, tsc_poll, (unsigned long)ts);
|
||||
platform_set_drvdata(pdev, ts);
|
||||
|
||||
ts->tsc_irq = platform_get_irq(pdev, 0);
|
||||
if (ts->tsc_irq < 0) {
|
||||
dev_err(dev, "cannot determine device interrupt\n");
|
||||
error = -ENODEV;
|
||||
goto error_res;
|
||||
}
|
||||
|
||||
ts->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
if (!ts->res) {
|
||||
dev_err(dev, "cannot determine register area\n");
|
||||
error = -ENODEV;
|
||||
goto error_res;
|
||||
}
|
||||
|
||||
if (!request_mem_region(ts->res->start, resource_size(ts->res),
|
||||
pdev->name)) {
|
||||
dev_err(dev, "cannot claim register memory\n");
|
||||
ts->res = NULL;
|
||||
error = -EINVAL;
|
||||
goto error_res;
|
||||
}
|
||||
|
||||
ts->regs = ioremap(ts->res->start, resource_size(ts->res));
|
||||
if (!ts->regs) {
|
||||
dev_err(dev, "cannot map register memory\n");
|
||||
error = -ENOMEM;
|
||||
goto error_map;
|
||||
}
|
||||
|
||||
ts->clk = clk_get(dev, NULL);
|
||||
if (IS_ERR(ts->clk)) {
|
||||
dev_err(dev, "cannot claim device clock\n");
|
||||
error = PTR_ERR(ts->clk);
|
||||
goto error_clk;
|
||||
}
|
||||
|
||||
error = request_threaded_irq(ts->tsc_irq, NULL, tsc_irq, IRQF_ONESHOT,
|
||||
dev_name(dev), ts);
|
||||
if (error < 0) {
|
||||
dev_err(ts->dev, "Could not allocate ts irq\n");
|
||||
goto error_irq;
|
||||
}
|
||||
|
||||
ts->input_dev = input_allocate_device();
|
||||
if (!ts->input_dev) {
|
||||
dev_err(dev, "cannot allocate input device\n");
|
||||
error = -ENOMEM;
|
||||
goto error_input;
|
||||
}
|
||||
input_set_drvdata(ts->input_dev, ts);
|
||||
|
||||
ts->input_dev->name = pdev->name;
|
||||
ts->input_dev->id.bustype = BUS_HOST;
|
||||
ts->input_dev->dev.parent = &pdev->dev;
|
||||
ts->input_dev->open = tsc_start;
|
||||
ts->input_dev->close = tsc_stop;
|
||||
|
||||
clk_enable(ts->clk);
|
||||
rev = tsc_read(ts, rev);
|
||||
ts->input_dev->id.product = ((rev >> 8) & 0x07);
|
||||
ts->input_dev->id.version = ((rev >> 16) & 0xfff);
|
||||
clk_disable(ts->clk);
|
||||
|
||||
__set_bit(EV_KEY, ts->input_dev->evbit);
|
||||
__set_bit(EV_ABS, ts->input_dev->evbit);
|
||||
__set_bit(BTN_TOUCH, ts->input_dev->keybit);
|
||||
|
||||
input_set_abs_params(ts->input_dev, ABS_X, 0, 0xffff, 5, 0);
|
||||
input_set_abs_params(ts->input_dev, ABS_Y, 0, 0xffff, 5, 0);
|
||||
input_set_abs_params(ts->input_dev, ABS_PRESSURE, 0, 4095, 128, 0);
|
||||
|
||||
error = input_register_device(ts->input_dev);
|
||||
if (error < 0) {
|
||||
dev_err(dev, "failed input device registration\n");
|
||||
goto error_reg;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
error_reg:
|
||||
input_free_device(ts->input_dev);
|
||||
error_input:
|
||||
free_irq(ts->tsc_irq, ts);
|
||||
error_irq:
|
||||
clk_put(ts->clk);
|
||||
error_clk:
|
||||
iounmap(ts->regs);
|
||||
error_map:
|
||||
release_mem_region(ts->res->start, resource_size(ts->res));
|
||||
error_res:
|
||||
kfree(ts);
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
static int tsc_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct tsc_data *ts = platform_get_drvdata(pdev);
|
||||
|
||||
input_unregister_device(ts->input_dev);
|
||||
free_irq(ts->tsc_irq, ts);
|
||||
clk_put(ts->clk);
|
||||
iounmap(ts->regs);
|
||||
release_mem_region(ts->res->start, resource_size(ts->res));
|
||||
kfree(ts);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver tsc_driver = {
|
||||
.probe = tsc_probe,
|
||||
.remove = tsc_remove,
|
||||
.driver.name = "tnetv107x-ts",
|
||||
.driver.owner = THIS_MODULE,
|
||||
};
|
||||
module_platform_driver(tsc_driver);
|
||||
|
||||
MODULE_AUTHOR("Cyril Chemparathy");
|
||||
MODULE_DESCRIPTION("TNETV107X Touchscreen Driver");
|
||||
MODULE_ALIAS("platform:tnetv107x-ts");
|
||||
MODULE_LICENSE("GPL");
|
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