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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-23 18:39:36 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-23 18:39:36 -0400
commit0dd52d0df02733dfc2d5f3824e41b96492305384 (patch)
tree4cfd84b7a66d71d83c624275d889136fb23a33c9 /drivers
parentc37efa932598de5e30330a1414e34d9e082e0d9e (diff)
parentfde1132374c9ba7da98a73b9a3c150dca6cf8502 (diff)
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: add driver for Atmel AT42QT2160 Sensor Chip Input: max7359 - use threaded IRQs Input: add driver for Maxim MAX7359 key switch controller Input: add driver for ADP5588 QWERTY I2C Keypad Input: add touchscreen driver for MELFAS MCS-5000 controller Input: add driver for OpenCores Keyboard Controller Input: dm355evm_keys - remove dm355evm_keys_hardirq Input: synaptics_i2c - switch to using __cancel_delayed_work() Input: ad7879 - add support for AD7889 Input: atkbd - rely on input core to restore state on resume Input: add generic suspend and resume for input devices Input: libps2 - additional locking for i8042 ports
Diffstat (limited to 'drivers')
-rw-r--r--drivers/input/input.c64
-rw-r--r--drivers/input/keyboard/Kconfig40
-rw-r--r--drivers/input/keyboard/Makefile4
-rw-r--r--drivers/input/keyboard/adp5588-keys.c361
-rw-r--r--drivers/input/keyboard/atkbd.c25
-rw-r--r--drivers/input/keyboard/max7359_keypad.c330
-rw-r--r--drivers/input/keyboard/opencores-kbd.c180
-rw-r--r--drivers/input/keyboard/qt2160.c397
-rw-r--r--drivers/input/misc/dm355evm_keys.c26
-rw-r--r--drivers/input/mouse/sentelic.c18
-rw-r--r--drivers/input/mouse/synaptics_i2c.c51
-rw-r--r--drivers/input/serio/i8042.c41
-rw-r--r--drivers/input/serio/libps2.c28
-rw-r--r--drivers/input/touchscreen/Kconfig17
-rw-r--r--drivers/input/touchscreen/Makefile1
-rw-r--r--drivers/input/touchscreen/ad7879.c6
-rw-r--r--drivers/input/touchscreen/mcs5000_ts.c318
-rw-r--r--drivers/leds/leds-clevo-mail.c8
-rw-r--r--drivers/platform/x86/acer-wmi.c2
19 files changed, 1838 insertions, 79 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 556539d617a4..e828aab7dace 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -11,6 +11,7 @@
11 */ 11 */
12 12
13#include <linux/init.h> 13#include <linux/init.h>
14#include <linux/types.h>
14#include <linux/input.h> 15#include <linux/input.h>
15#include <linux/module.h> 16#include <linux/module.h>
16#include <linux/random.h> 17#include <linux/random.h>
@@ -514,7 +515,7 @@ static void input_disconnect_device(struct input_dev *dev)
514 * that there are no threads in the middle of input_open_device() 515 * that there are no threads in the middle of input_open_device()
515 */ 516 */
516 mutex_lock(&dev->mutex); 517 mutex_lock(&dev->mutex);
517 dev->going_away = 1; 518 dev->going_away = true;
518 mutex_unlock(&dev->mutex); 519 mutex_unlock(&dev->mutex);
519 520
520 spin_lock_irq(&dev->event_lock); 521 spin_lock_irq(&dev->event_lock);
@@ -1259,10 +1260,71 @@ static int input_dev_uevent(struct device *device, struct kobj_uevent_env *env)
1259 return 0; 1260 return 0;
1260} 1261}
1261 1262
1263#define INPUT_DO_TOGGLE(dev, type, bits, on) \
1264 do { \
1265 int i; \
1266 if (!test_bit(EV_##type, dev->evbit)) \
1267 break; \
1268 for (i = 0; i < type##_MAX; i++) { \
1269 if (!test_bit(i, dev->bits##bit) || \
1270 !test_bit(i, dev->bits)) \
1271 continue; \
1272 dev->event(dev, EV_##type, i, on); \
1273 } \
1274 } while (0)
1275
1276static void input_dev_reset(struct input_dev *dev, bool activate)
1277{
1278 if (!dev->event)
1279 return;
1280
1281 INPUT_DO_TOGGLE(dev, LED, led, activate);
1282 INPUT_DO_TOGGLE(dev, SND, snd, activate);
1283
1284 if (activate && test_bit(EV_REP, dev->evbit)) {
1285 dev->event(dev, EV_REP, REP_PERIOD, dev->rep[REP_PERIOD]);
1286 dev->event(dev, EV_REP, REP_DELAY, dev->rep[REP_DELAY]);
1287 }
1288}
1289
1290#ifdef CONFIG_PM
1291static int input_dev_suspend(struct device *dev)
1292{
1293 struct input_dev *input_dev = to_input_dev(dev);
1294
1295 mutex_lock(&input_dev->mutex);
1296 input_dev_reset(input_dev, false);
1297 mutex_unlock(&input_dev->mutex);
1298
1299 return 0;
1300}
1301
1302static int input_dev_resume(struct device *dev)
1303{
1304 struct input_dev *input_dev = to_input_dev(dev);
1305
1306 mutex_lock(&input_dev->mutex);
1307 input_dev_reset(input_dev, true);
1308 mutex_unlock(&input_dev->mutex);
1309
1310 return 0;
1311}
1312
1313static const struct dev_pm_ops input_dev_pm_ops = {
1314 .suspend = input_dev_suspend,
1315 .resume = input_dev_resume,
1316 .poweroff = input_dev_suspend,
1317 .restore = input_dev_resume,
1318};
1319#endif /* CONFIG_PM */
1320
1262static struct device_type input_dev_type = { 1321static struct device_type input_dev_type = {
1263 .groups = input_dev_attr_groups, 1322 .groups = input_dev_attr_groups,
1264 .release = input_dev_release, 1323 .release = input_dev_release,
1265 .uevent = input_dev_uevent, 1324 .uevent = input_dev_uevent,
1325#ifdef CONFIG_PM
1326 .pm = &input_dev_pm_ops,
1327#endif
1266}; 1328};
1267 1329
1268static char *input_devnode(struct device *dev, mode_t *mode) 1330static char *input_devnode(struct device *dev, mode_t *mode)
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 3525c19be428..ee98b1bc5d89 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -24,6 +24,16 @@ config KEYBOARD_AAED2000
24 To compile this driver as a module, choose M here: the 24 To compile this driver as a module, choose M here: the
25 module will be called aaed2000_kbd. 25 module will be called aaed2000_kbd.
26 26
27config KEYBOARD_ADP5588
28 tristate "ADP5588 I2C QWERTY Keypad and IO Expander"
29 depends on I2C
30 help
31 Say Y here if you want to use a ADP5588 attached to your
32 system I2C bus.
33
34 To compile this driver as a module, choose M here: the
35 module will be called adp5588-keys.
36
27config KEYBOARD_AMIGA 37config KEYBOARD_AMIGA
28 tristate "Amiga keyboard" 38 tristate "Amiga keyboard"
29 depends on AMIGA 39 depends on AMIGA
@@ -104,6 +114,16 @@ config KEYBOARD_ATKBD_RDI_KEYCODES
104 right-hand column will be interpreted as the key shown in the 114 right-hand column will be interpreted as the key shown in the
105 left-hand column. 115 left-hand column.
106 116
117config QT2160
118 tristate "Atmel AT42QT2160 Touch Sensor Chip"
119 depends on I2C && EXPERIMENTAL
120 help
121 If you say yes here you get support for Atmel AT42QT2160 Touch
122 Sensor chip as a keyboard input.
123
124 This driver can also be built as a module. If so, the module
125 will be called qt2160.
126
107config KEYBOARD_BFIN 127config KEYBOARD_BFIN
108 tristate "Blackfin BF54x keypad support" 128 tristate "Blackfin BF54x keypad support"
109 depends on (BF54x && !BF544) 129 depends on (BF54x && !BF544)
@@ -251,6 +271,17 @@ config KEYBOARD_MAPLE
251 To compile this driver as a module, choose M here: the 271 To compile this driver as a module, choose M here: the
252 module will be called maple_keyb. 272 module will be called maple_keyb.
253 273
274config KEYBOARD_MAX7359
275 tristate "Maxim MAX7359 Key Switch Controller"
276 depends on I2C
277 help
278 If you say yes here you get support for the Maxim MAX7359 Key
279 Switch Controller chip. This providers microprocessors with
280 management of up to 64 key switches
281
282 To compile this driver as a module, choose M here: the
283 module will be called max7359_keypad.
284
254config KEYBOARD_NEWTON 285config KEYBOARD_NEWTON
255 tristate "Newton keyboard" 286 tristate "Newton keyboard"
256 select SERIO 287 select SERIO
@@ -260,6 +291,15 @@ config KEYBOARD_NEWTON
260 To compile this driver as a module, choose M here: the 291 To compile this driver as a module, choose M here: the
261 module will be called newtonkbd. 292 module will be called newtonkbd.
262 293
294config KEYBOARD_OPENCORES
295 tristate "OpenCores Keyboard Controller"
296 help
297 Say Y here if you want to use the OpenCores Keyboard Controller
298 http://www.opencores.org/project,keyboardcontroller
299
300 To compile this driver as a module, choose M here; the
301 module will be called opencores-kbd.
302
263config KEYBOARD_PXA27x 303config KEYBOARD_PXA27x
264 tristate "PXA27x/PXA3xx keypad support" 304 tristate "PXA27x/PXA3xx keypad support"
265 depends on PXA27x || PXA3xx 305 depends on PXA27x || PXA3xx
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 8a7a22b30266..babad5e58b77 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -5,6 +5,7 @@
5# Each configuration option enables a list of files. 5# Each configuration option enables a list of files.
6 6
7obj-$(CONFIG_KEYBOARD_AAED2000) += aaed2000_kbd.o 7obj-$(CONFIG_KEYBOARD_AAED2000) += aaed2000_kbd.o
8obj-$(CONFIG_KEYBOARD_ADP5588) += adp5588-keys.o
8obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o 9obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o
9obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o 10obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o
10obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o 11obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o
@@ -21,10 +22,13 @@ obj-$(CONFIG_KEYBOARD_LM8323) += lm8323.o
21obj-$(CONFIG_KEYBOARD_LOCOMO) += locomokbd.o 22obj-$(CONFIG_KEYBOARD_LOCOMO) += locomokbd.o
22obj-$(CONFIG_KEYBOARD_MAPLE) += maple_keyb.o 23obj-$(CONFIG_KEYBOARD_MAPLE) += maple_keyb.o
23obj-$(CONFIG_KEYBOARD_MATRIX) += matrix_keypad.o 24obj-$(CONFIG_KEYBOARD_MATRIX) += matrix_keypad.o
25obj-$(CONFIG_KEYBOARD_MAX7359) += max7359_keypad.o
24obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o 26obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o
25obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o 27obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o
28obj-$(CONFIG_KEYBOARD_OPENCORES) += opencores-kbd.o
26obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o 29obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o
27obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o 30obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o
31obj-$(CONFIG_KEYBOARD_QT2160) += qt2160.o
28obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o 32obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o
29obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o 33obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o
30obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o 34obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
diff --git a/drivers/input/keyboard/adp5588-keys.c b/drivers/input/keyboard/adp5588-keys.c
new file mode 100644
index 000000000000..d48c808d5928
--- /dev/null
+++ b/drivers/input/keyboard/adp5588-keys.c
@@ -0,0 +1,361 @@
1/*
2 * File: drivers/input/keyboard/adp5588_keys.c
3 * Description: keypad driver for ADP5588 I2C QWERTY Keypad and IO Expander
4 * Bugs: Enter bugs at http://blackfin.uclinux.org/
5 *
6 * Copyright (C) 2008-2009 Analog Devices Inc.
7 * Licensed under the GPL-2 or later.
8 */
9
10#include <linux/module.h>
11#include <linux/version.h>
12#include <linux/init.h>
13#include <linux/interrupt.h>
14#include <linux/irq.h>
15#include <linux/workqueue.h>
16#include <linux/errno.h>
17#include <linux/pm.h>
18#include <linux/platform_device.h>
19#include <linux/input.h>
20#include <linux/i2c.h>
21
22#include <linux/i2c/adp5588.h>
23
24 /* Configuration Register1 */
25#define AUTO_INC (1 << 7)
26#define GPIEM_CFG (1 << 6)
27#define OVR_FLOW_M (1 << 5)
28#define INT_CFG (1 << 4)
29#define OVR_FLOW_IEN (1 << 3)
30#define K_LCK_IM (1 << 2)
31#define GPI_IEN (1 << 1)
32#define KE_IEN (1 << 0)
33
34/* Interrupt Status Register */
35#define CMP2_INT (1 << 5)
36#define CMP1_INT (1 << 4)
37#define OVR_FLOW_INT (1 << 3)
38#define K_LCK_INT (1 << 2)
39#define GPI_INT (1 << 1)
40#define KE_INT (1 << 0)
41
42/* Key Lock and Event Counter Register */
43#define K_LCK_EN (1 << 6)
44#define LCK21 0x30
45#define KEC 0xF
46
47/* Key Event Register xy */
48#define KEY_EV_PRESSED (1 << 7)
49#define KEY_EV_MASK (0x7F)
50
51#define KP_SEL(x) (0xFFFF >> (16 - x)) /* 2^x-1 */
52
53#define KEYP_MAX_EVENT 10
54
55/*
56 * Early pre 4.0 Silicon required to delay readout by at least 25ms,
57 * since the Event Counter Register updated 25ms after the interrupt
58 * asserted.
59 */
60#define WA_DELAYED_READOUT_REVID(rev) ((rev) < 4)
61
62struct adp5588_kpad {
63 struct i2c_client *client;
64 struct input_dev *input;
65 struct delayed_work work;
66 unsigned long delay;
67 unsigned short keycode[ADP5588_KEYMAPSIZE];
68};
69
70static int adp5588_read(struct i2c_client *client, u8 reg)
71{
72 int ret = i2c_smbus_read_byte_data(client, reg);
73
74 if (ret < 0)
75 dev_err(&client->dev, "Read Error\n");
76
77 return ret;
78}
79
80static int adp5588_write(struct i2c_client *client, u8 reg, u8 val)
81{
82 return i2c_smbus_write_byte_data(client, reg, val);
83}
84
85static void adp5588_work(struct work_struct *work)
86{
87 struct adp5588_kpad *kpad = container_of(work,
88 struct adp5588_kpad, work.work);
89 struct i2c_client *client = kpad->client;
90 int i, key, status, ev_cnt;
91
92 status = adp5588_read(client, INT_STAT);
93
94 if (status & OVR_FLOW_INT) /* Unlikely and should never happen */
95 dev_err(&client->dev, "Event Overflow Error\n");
96
97 if (status & KE_INT) {
98 ev_cnt = adp5588_read(client, KEY_LCK_EC_STAT) & KEC;
99 if (ev_cnt) {
100 for (i = 0; i < ev_cnt; i++) {
101 key = adp5588_read(client, Key_EVENTA + i);
102 input_report_key(kpad->input,
103 kpad->keycode[(key & KEY_EV_MASK) - 1],
104 key & KEY_EV_PRESSED);
105 }
106 input_sync(kpad->input);
107 }
108 }
109 adp5588_write(client, INT_STAT, status); /* Status is W1C */
110}
111
112static irqreturn_t adp5588_irq(int irq, void *handle)
113{
114 struct adp5588_kpad *kpad = handle;
115
116 /*
117 * use keventd context to read the event fifo registers
118 * Schedule readout at least 25ms after notification for
119 * REVID < 4
120 */
121
122 schedule_delayed_work(&kpad->work, kpad->delay);
123
124 return IRQ_HANDLED;
125}
126
127static int __devinit adp5588_setup(struct i2c_client *client)
128{
129 struct adp5588_kpad_platform_data *pdata = client->dev.platform_data;
130 int i, ret;
131
132 ret = adp5588_write(client, KP_GPIO1, KP_SEL(pdata->rows));
133 ret |= adp5588_write(client, KP_GPIO2, KP_SEL(pdata->cols) & 0xFF);
134 ret |= adp5588_write(client, KP_GPIO3, KP_SEL(pdata->cols) >> 8);
135
136 if (pdata->en_keylock) {
137 ret |= adp5588_write(client, UNLOCK1, pdata->unlock_key1);
138 ret |= adp5588_write(client, UNLOCK2, pdata->unlock_key2);
139 ret |= adp5588_write(client, KEY_LCK_EC_STAT, K_LCK_EN);
140 }
141
142 for (i = 0; i < KEYP_MAX_EVENT; i++)
143 ret |= adp5588_read(client, Key_EVENTA);
144
145 ret |= adp5588_write(client, INT_STAT, CMP2_INT | CMP1_INT |
146 OVR_FLOW_INT | K_LCK_INT |
147 GPI_INT | KE_INT); /* Status is W1C */
148
149 ret |= adp5588_write(client, CFG, INT_CFG | OVR_FLOW_IEN | KE_IEN);
150
151 if (ret < 0) {
152 dev_err(&client->dev, "Write Error\n");
153 return ret;
154 }
155
156 return 0;
157}
158
159static int __devinit adp5588_probe(struct i2c_client *client,
160 const struct i2c_device_id *id)
161{
162 struct adp5588_kpad *kpad;
163 struct adp5588_kpad_platform_data *pdata = client->dev.platform_data;
164 struct input_dev *input;
165 unsigned int revid;
166 int ret, i;
167 int error;
168
169 if (!i2c_check_functionality(client->adapter,
170 I2C_FUNC_SMBUS_BYTE_DATA)) {
171 dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
172 return -EIO;
173 }
174
175 if (!pdata) {
176 dev_err(&client->dev, "no platform data?\n");
177 return -EINVAL;
178 }
179
180 if (!pdata->rows || !pdata->cols || !pdata->keymap) {
181 dev_err(&client->dev, "no rows, cols or keymap from pdata\n");
182 return -EINVAL;
183 }
184
185 if (pdata->keymapsize != ADP5588_KEYMAPSIZE) {
186 dev_err(&client->dev, "invalid keymapsize\n");
187 return -EINVAL;
188 }
189
190 if (!client->irq) {
191 dev_err(&client->dev, "no IRQ?\n");
192 return -EINVAL;
193 }
194
195 kpad = kzalloc(sizeof(*kpad), GFP_KERNEL);
196 input = input_allocate_device();
197 if (!kpad || !input) {
198 error = -ENOMEM;
199 goto err_free_mem;
200 }
201
202 kpad->client = client;
203 kpad->input = input;
204 INIT_DELAYED_WORK(&kpad->work, adp5588_work);
205
206 ret = adp5588_read(client, DEV_ID);
207 if (ret < 0) {
208 error = ret;
209 goto err_free_mem;
210 }
211
212 revid = (u8) ret & ADP5588_DEVICE_ID_MASK;
213 if (WA_DELAYED_READOUT_REVID(revid))
214 kpad->delay = msecs_to_jiffies(30);
215
216 input->name = client->name;
217 input->phys = "adp5588-keys/input0";
218 input->dev.parent = &client->dev;
219
220 input_set_drvdata(input, kpad);
221
222 input->id.bustype = BUS_I2C;
223 input->id.vendor = 0x0001;
224 input->id.product = 0x0001;
225 input->id.version = revid;
226
227 input->keycodesize = sizeof(kpad->keycode[0]);
228 input->keycodemax = pdata->keymapsize;
229 input->keycode = kpad->keycode;
230
231 memcpy(kpad->keycode, pdata->keymap,
232 pdata->keymapsize * input->keycodesize);
233
234 /* setup input device */
235 __set_bit(EV_KEY, input->evbit);
236
237 if (pdata->repeat)
238 __set_bit(EV_REP, input->evbit);
239
240 for (i = 0; i < input->keycodemax; i++)
241 __set_bit(kpad->keycode[i] & KEY_MAX, input->keybit);
242 __clear_bit(KEY_RESERVED, input->keybit);
243
244 error = input_register_device(input);
245 if (error) {
246 dev_err(&client->dev, "unable to register input device\n");
247 goto err_free_mem;
248 }
249
250 error = request_irq(client->irq, adp5588_irq,
251 IRQF_TRIGGER_FALLING | IRQF_DISABLED,
252 client->dev.driver->name, kpad);
253 if (error) {
254 dev_err(&client->dev, "irq %d busy?\n", client->irq);
255 goto err_unreg_dev;
256 }
257
258 error = adp5588_setup(client);
259 if (error)
260 goto err_free_irq;
261
262 device_init_wakeup(&client->dev, 1);
263 i2c_set_clientdata(client, kpad);
264
265 dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq);
266 return 0;
267
268 err_free_irq:
269 free_irq(client->irq, kpad);
270 err_unreg_dev:
271 input_unregister_device(input);
272 input = NULL;
273 err_free_mem:
274 input_free_device(input);
275 kfree(kpad);
276
277 return error;
278}
279
280static int __devexit adp5588_remove(struct i2c_client *client)
281{
282 struct adp5588_kpad *kpad = i2c_get_clientdata(client);
283
284 adp5588_write(client, CFG, 0);
285 free_irq(client->irq, kpad);
286 cancel_delayed_work_sync(&kpad->work);
287 input_unregister_device(kpad->input);
288 i2c_set_clientdata(client, NULL);
289 kfree(kpad);
290
291 return 0;
292}
293
294#ifdef CONFIG_PM
295static int adp5588_suspend(struct device *dev)
296{
297 struct adp5588_kpad *kpad = dev_get_drvdata(dev);
298 struct i2c_client *client = kpad->client;
299
300 disable_irq(client->irq);
301 cancel_delayed_work_sync(&kpad->work);
302
303 if (device_may_wakeup(&client->dev))
304 enable_irq_wake(client->irq);
305
306 return 0;
307}
308
309static int adp5588_resume(struct device *dev)
310{
311 struct adp5588_kpad *kpad = dev_get_drvdata(dev);
312 struct i2c_client *client = kpad->client;
313
314 if (device_may_wakeup(&client->dev))
315 disable_irq_wake(client->irq);
316
317 enable_irq(client->irq);
318
319 return 0;
320}
321
322static struct dev_pm_ops adp5588_dev_pm_ops = {
323 .suspend = adp5588_suspend,
324 .resume = adp5588_resume,
325};
326#endif
327
328static const struct i2c_device_id adp5588_id[] = {
329 { KBUILD_MODNAME, 0 },
330 { }
331};
332MODULE_DEVICE_TABLE(i2c, adp5588_id);
333
334static struct i2c_driver adp5588_driver = {
335 .driver = {
336 .name = KBUILD_MODNAME,
337#ifdef CONFIG_PM
338 .pm = &adp5588_dev_pm_ops,
339#endif
340 },
341 .probe = adp5588_probe,
342 .remove = __devexit_p(adp5588_remove),
343 .id_table = adp5588_id,
344};
345
346static int __init adp5588_init(void)
347{
348 return i2c_add_driver(&adp5588_driver);
349}
350module_init(adp5588_init);
351
352static void __exit adp5588_exit(void)
353{
354 i2c_del_driver(&adp5588_driver);
355}
356module_exit(adp5588_exit);
357
358MODULE_LICENSE("GPL");
359MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
360MODULE_DESCRIPTION("ADP5588 Keypad driver");
361MODULE_ALIAS("platform:adp5588-keys");
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index adb09e2ba394..4709e15af607 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -773,23 +773,6 @@ static int atkbd_select_set(struct atkbd *atkbd, int target_set, int allow_extra
773static int atkbd_activate(struct atkbd *atkbd) 773static int atkbd_activate(struct atkbd *atkbd)
774{ 774{
775 struct ps2dev *ps2dev = &atkbd->ps2dev; 775 struct ps2dev *ps2dev = &atkbd->ps2dev;
776 unsigned char param[1];
777
778/*
779 * Set the LEDs to a defined state.
780 */
781
782 param[0] = 0;
783 if (ps2_command(ps2dev, param, ATKBD_CMD_SETLEDS))
784 return -1;
785
786/*
787 * Set autorepeat to fastest possible.
788 */
789
790 param[0] = 0;
791 if (ps2_command(ps2dev, param, ATKBD_CMD_SETREP))
792 return -1;
793 776
794/* 777/*
795 * Enable the keyboard to receive keystrokes. 778 * Enable the keyboard to receive keystrokes.
@@ -1158,14 +1141,6 @@ static int atkbd_reconnect(struct serio *serio)
1158 return -1; 1141 return -1;
1159 1142
1160 atkbd_activate(atkbd); 1143 atkbd_activate(atkbd);
1161
1162/*
1163 * Restore repeat rate and LEDs (that were reset by atkbd_activate)
1164 * to pre-resume state
1165 */
1166 if (!atkbd->softrepeat)
1167 atkbd_set_repeat_rate(atkbd);
1168 atkbd_set_leds(atkbd);
1169 } 1144 }
1170 1145
1171 atkbd_enable(atkbd); 1146 atkbd_enable(atkbd);
diff --git a/drivers/input/keyboard/max7359_keypad.c b/drivers/input/keyboard/max7359_keypad.c
new file mode 100644
index 000000000000..3b5b948eba39
--- /dev/null
+++ b/drivers/input/keyboard/max7359_keypad.c
@@ -0,0 +1,330 @@
1/*
2 * max7359_keypad.c - MAX7359 Key Switch Controller Driver
3 *
4 * Copyright (C) 2009 Samsung Electronics
5 * Kim Kyuwon <q1.kim@samsung.com>
6 *
7 * Based on pxa27x_keypad.c
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 * Datasheet: http://www.maxim-ic.com/quick_view2.cfm/qv_pk/5456
14 */
15
16#include <linux/module.h>
17#include <linux/i2c.h>
18#include <linux/interrupt.h>
19#include <linux/input.h>
20#include <linux/input/matrix_keypad.h>
21
22#define MAX7359_MAX_KEY_ROWS 8
23#define MAX7359_MAX_KEY_COLS 8
24#define MAX7359_MAX_KEY_NUM (MAX7359_MAX_KEY_ROWS * MAX7359_MAX_KEY_COLS)
25#define MAX7359_ROW_SHIFT 3
26
27/*
28 * MAX7359 registers
29 */
30#define MAX7359_REG_KEYFIFO 0x00
31#define MAX7359_REG_CONFIG 0x01
32#define MAX7359_REG_DEBOUNCE 0x02
33#define MAX7359_REG_INTERRUPT 0x03
34#define MAX7359_REG_PORTS 0x04
35#define MAX7359_REG_KEYREP 0x05
36#define MAX7359_REG_SLEEP 0x06
37
38/*
39 * Configuration register bits
40 */
41#define MAX7359_CFG_SLEEP (1 << 7)
42#define MAX7359_CFG_INTERRUPT (1 << 5)
43#define MAX7359_CFG_KEY_RELEASE (1 << 3)
44#define MAX7359_CFG_WAKEUP (1 << 1)
45#define MAX7359_CFG_TIMEOUT (1 << 0)
46
47/*
48 * Autosleep register values (ms)
49 */
50#define MAX7359_AUTOSLEEP_8192 0x01
51#define MAX7359_AUTOSLEEP_4096 0x02
52#define MAX7359_AUTOSLEEP_2048 0x03
53#define MAX7359_AUTOSLEEP_1024 0x04
54#define MAX7359_AUTOSLEEP_512 0x05
55#define MAX7359_AUTOSLEEP_256 0x06
56
57struct max7359_keypad {
58 /* matrix key code map */
59 unsigned short keycodes[MAX7359_MAX_KEY_NUM];
60
61 struct input_dev *input_dev;
62 struct i2c_client *client;
63};
64
65static int max7359_write_reg(struct i2c_client *client, u8 reg, u8 val)
66{
67 int ret = i2c_smbus_write_byte_data(client, reg, val);
68
69 if (ret < 0)
70 dev_err(&client->dev, "%s: reg 0x%x, val 0x%x, err %d\n",
71 __func__, reg, val, ret);
72 return ret;
73}
74
75static int max7359_read_reg(struct i2c_client *client, int reg)
76{
77 int ret = i2c_smbus_read_byte_data(client, reg);
78
79 if (ret < 0)
80 dev_err(&client->dev, "%s: reg 0x%x, err %d\n",
81 __func__, reg, ret);
82 return ret;
83}
84
85static void max7359_build_keycode(struct max7359_keypad *keypad,
86 const struct matrix_keymap_data *keymap_data)
87{
88 struct input_dev *input_dev = keypad->input_dev;
89 int i;
90
91 for (i = 0; i < keymap_data->keymap_size; i++) {
92 unsigned int key = keymap_data->keymap[i];
93 unsigned int row = KEY_ROW(key);
94 unsigned int col = KEY_COL(key);
95 unsigned int scancode = MATRIX_SCAN_CODE(row, col,
96 MAX7359_ROW_SHIFT);
97 unsigned short keycode = KEY_VAL(key);
98
99 keypad->keycodes[scancode] = keycode;
100 __set_bit(keycode, input_dev->keybit);
101 }
102 __clear_bit(KEY_RESERVED, input_dev->keybit);
103}
104
105/* runs in an IRQ thread -- can (and will!) sleep */
106static irqreturn_t max7359_interrupt(int irq, void *dev_id)
107{
108 struct max7359_keypad *keypad = dev_id;
109 struct input_dev *input_dev = keypad->input_dev;
110 int val, row, col, release, code;
111
112 val = max7359_read_reg(keypad->client, MAX7359_REG_KEYFIFO);
113 row = val & 0x7;
114 col = (val >> 3) & 0x7;
115 release = val & 0x40;
116
117 code = MATRIX_SCAN_CODE(row, col, MAX7359_ROW_SHIFT);
118
119 dev_dbg(&keypad->client->dev,
120 "key[%d:%d] %s\n", row, col, release ? "release" : "press");
121
122 input_event(input_dev, EV_MSC, MSC_SCAN, code);
123 input_report_key(input_dev, keypad->keycodes[code], !release);
124 input_sync(input_dev);
125
126 return IRQ_HANDLED;
127}
128
129/*
130 * Let MAX7359 fall into a deep sleep:
131 * If no keys are pressed, enter sleep mode for 8192 ms. And if any
132 * key is pressed, the MAX7359 returns to normal operating mode.
133 */
134static inline void max7359_fall_deepsleep(struct i2c_client *client)
135{
136 max7359_write_reg(client, MAX7359_REG_SLEEP, MAX7359_AUTOSLEEP_8192);
137}
138
139/*
140 * Let MAX7359 take a catnap:
141 * Autosleep just for 256 ms.
142 */
143static inline void max7359_take_catnap(struct i2c_client *client)
144{
145 max7359_write_reg(client, MAX7359_REG_SLEEP, MAX7359_AUTOSLEEP_256);
146}
147
148static int max7359_open(struct input_dev *dev)
149{
150 struct max7359_keypad *keypad = input_get_drvdata(dev);
151
152 max7359_take_catnap(keypad->client);
153
154 return 0;
155}
156
157static void max7359_close(struct input_dev *dev)
158{
159 struct max7359_keypad *keypad = input_get_drvdata(dev);
160
161 max7359_fall_deepsleep(keypad->client);
162}
163
164static void max7359_initialize(struct i2c_client *client)
165{
166 max7359_write_reg(client, MAX7359_REG_CONFIG,
167 MAX7359_CFG_INTERRUPT | /* Irq clears after host read */
168 MAX7359_CFG_KEY_RELEASE | /* Key release enable */
169 MAX7359_CFG_WAKEUP); /* Key press wakeup enable */
170
171 /* Full key-scan functionality */
172 max7359_write_reg(client, MAX7359_REG_DEBOUNCE, 0x1F);
173
174 /* nINT asserts every debounce cycles */
175 max7359_write_reg(client, MAX7359_REG_INTERRUPT, 0x01);
176
177 max7359_fall_deepsleep(client);
178}
179
180static int __devinit max7359_probe(struct i2c_client *client,
181 const struct i2c_device_id *id)
182{
183 const struct matrix_keymap_data *keymap_data = client->dev.platform_data;
184 struct max7359_keypad *keypad;
185 struct input_dev *input_dev;
186 int ret;
187 int error;
188
189 if (!client->irq) {
190 dev_err(&client->dev, "The irq number should not be zero\n");
191 return -EINVAL;
192 }
193
194 /* Detect MAX7359: The initial Keys FIFO value is '0x3F' */
195 ret = max7359_read_reg(client, MAX7359_REG_KEYFIFO);
196 if (ret < 0) {
197 dev_err(&client->dev, "failed to detect device\n");
198 return -ENODEV;
199 }
200
201 dev_dbg(&client->dev, "keys FIFO is 0x%02x\n", ret);
202
203 keypad = kzalloc(sizeof(struct max7359_keypad), GFP_KERNEL);
204 input_dev = input_allocate_device();
205 if (!keypad || !input_dev) {
206 dev_err(&client->dev, "failed to allocate memory\n");
207 error = -ENOMEM;
208 goto failed_free_mem;
209 }
210
211 keypad->client = client;
212 keypad->input_dev = input_dev;
213
214 input_dev->name = client->name;
215 input_dev->id.bustype = BUS_I2C;
216 input_dev->open = max7359_open;
217 input_dev->close = max7359_close;
218 input_dev->dev.parent = &client->dev;
219
220 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
221 input_dev->keycodesize = sizeof(keypad->keycodes[0]);
222 input_dev->keycodemax = ARRAY_SIZE(keypad->keycodes);
223 input_dev->keycode = keypad->keycodes;
224
225 input_set_capability(input_dev, EV_MSC, MSC_SCAN);
226 input_set_drvdata(input_dev, keypad);
227
228 max7359_build_keycode(keypad, keymap_data);
229
230 error = request_threaded_irq(client->irq, NULL, max7359_interrupt,
231 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
232 client->name, keypad);
233 if (error) {
234 dev_err(&client->dev, "failed to register interrupt\n");
235 goto failed_free_mem;
236 }
237
238 /* Register the input device */
239 error = input_register_device(input_dev);
240 if (error) {
241 dev_err(&client->dev, "failed to register input device\n");
242 goto failed_free_irq;
243 }
244
245 /* Initialize MAX7359 */
246 max7359_initialize(client);
247
248 i2c_set_clientdata(client, keypad);
249 device_init_wakeup(&client->dev, 1);
250
251 return 0;
252
253failed_free_irq:
254 free_irq(client->irq, keypad);
255failed_free_mem:
256 input_free_device(input_dev);
257 kfree(keypad);
258 return error;
259}
260
261static int __devexit max7359_remove(struct i2c_client *client)
262{
263 struct max7359_keypad *keypad = i2c_get_clientdata(client);
264
265 free_irq(client->irq, keypad);
266 input_unregister_device(keypad->input_dev);
267 i2c_set_clientdata(client, NULL);
268 kfree(keypad);
269
270 return 0;
271}
272
273#ifdef CONFIG_PM
274static int max7359_suspend(struct i2c_client *client, pm_message_t mesg)
275{
276 max7359_fall_deepsleep(client);
277
278 if (device_may_wakeup(&client->dev))
279 enable_irq_wake(client->irq);
280
281 return 0;
282}
283
284static int max7359_resume(struct i2c_client *client)
285{
286 if (device_may_wakeup(&client->dev))
287 disable_irq_wake(client->irq);
288
289 /* Restore the default setting */
290 max7359_take_catnap(client);
291
292 return 0;
293}
294#else
295#define max7359_suspend NULL
296#define max7359_resume NULL
297#endif
298
299static const struct i2c_device_id max7359_ids[] = {
300 { "max7359", 0 },
301 { }
302};
303MODULE_DEVICE_TABLE(i2c, max7359_ids);
304
305static struct i2c_driver max7359_i2c_driver = {
306 .driver = {
307 .name = "max7359",
308 },
309 .probe = max7359_probe,
310 .remove = __devexit_p(max7359_remove),
311 .suspend = max7359_suspend,
312 .resume = max7359_resume,
313 .id_table = max7359_ids,
314};
315
316static int __init max7359_init(void)
317{
318 return i2c_add_driver(&max7359_i2c_driver);
319}
320module_init(max7359_init);
321
322static void __exit max7359_exit(void)
323{
324 i2c_del_driver(&max7359_i2c_driver);
325}
326module_exit(max7359_exit);
327
328MODULE_AUTHOR("Kim Kyuwon <q1.kim@samsung.com>");
329MODULE_DESCRIPTION("MAX7359 Key Switch Controller Driver");
330MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/keyboard/opencores-kbd.c b/drivers/input/keyboard/opencores-kbd.c
new file mode 100644
index 000000000000..78cccddbf551
--- /dev/null
+++ b/drivers/input/keyboard/opencores-kbd.c
@@ -0,0 +1,180 @@
1/*
2 * OpenCores Keyboard Controller Driver
3 * http://www.opencores.org/project,keyboardcontroller
4 *
5 * Copyright 2007-2009 HV Sistemas S.L.
6 *
7 * Licensed under the GPL-2 or later.
8 */
9
10#include <linux/input.h>
11#include <linux/interrupt.h>
12#include <linux/io.h>
13#include <linux/ioport.h>
14#include <linux/kernel.h>
15#include <linux/module.h>
16#include <linux/platform_device.h>
17
18struct opencores_kbd {
19 struct input_dev *input;
20 struct resource *addr_res;
21 void __iomem *addr;
22 int irq;
23 unsigned short keycodes[128];
24};
25
26static irqreturn_t opencores_kbd_isr(int irq, void *dev_id)
27{
28 struct opencores_kbd *opencores_kbd = dev_id;
29 struct input_dev *input = opencores_kbd->input;
30 unsigned char c;
31
32 c = readb(opencores_kbd->addr);
33 input_report_key(input, c & 0x7f, c & 0x80 ? 0 : 1);
34 input_sync(input);
35
36 return IRQ_HANDLED;
37}
38
39static int __devinit opencores_kbd_probe(struct platform_device *pdev)
40{
41 struct input_dev *input;
42 struct opencores_kbd *opencores_kbd;
43 struct resource *res;
44 int irq, i, error;
45
46 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
47 if (!res) {
48 dev_err(&pdev->dev, "missing board memory resource\n");
49 return -EINVAL;
50 }
51
52 irq = platform_get_irq(pdev, 0);
53 if (irq < 0) {
54 dev_err(&pdev->dev, "missing board IRQ resource\n");
55 return -EINVAL;
56 }
57
58 opencores_kbd = kzalloc(sizeof(*opencores_kbd), GFP_KERNEL);
59 input = input_allocate_device();
60 if (!opencores_kbd || !input) {
61 dev_err(&pdev->dev, "failed to allocate device structures\n");
62 error = -ENOMEM;
63 goto err_free_mem;
64 }
65
66 opencores_kbd->addr_res = res;
67 res = request_mem_region(res->start, resource_size(res), pdev->name);
68 if (!res) {
69 dev_err(&pdev->dev, "failed to request I/O memory\n");
70 error = -EBUSY;
71 goto err_free_mem;
72 }
73
74 opencores_kbd->addr = ioremap(res->start, resource_size(res));
75 if (!opencores_kbd->addr) {
76 dev_err(&pdev->dev, "failed to remap I/O memory\n");
77 error = -ENXIO;
78 goto err_rel_mem;
79 }
80
81 opencores_kbd->input = input;
82 opencores_kbd->irq = irq;
83
84 input->name = pdev->name;
85 input->phys = "opencores-kbd/input0";
86 input->dev.parent = &pdev->dev;
87
88 input_set_drvdata(input, opencores_kbd);
89
90 input->id.bustype = BUS_HOST;
91 input->id.vendor = 0x0001;
92 input->id.product = 0x0001;
93 input->id.version = 0x0100;
94
95 input->keycode = opencores_kbd->keycodes;
96 input->keycodesize = sizeof(opencores_kbd->keycodes[0]);
97 input->keycodemax = ARRAY_SIZE(opencores_kbd->keycodes);
98
99 __set_bit(EV_KEY, input->evbit);
100
101 for (i = 0; i < ARRAY_SIZE(opencores_kbd->keycodes); i++) {
102 /*
103 * OpenCores controller happens to have scancodes match
104 * our KEY_* definitions.
105 */
106 opencores_kbd->keycodes[i] = i;
107 __set_bit(opencores_kbd->keycodes[i], input->keybit);
108 }
109 __clear_bit(KEY_RESERVED, input->keybit);
110
111 error = request_irq(irq, &opencores_kbd_isr,
112 IRQF_TRIGGER_RISING, pdev->name, opencores_kbd);
113 if (error) {
114 dev_err(&pdev->dev, "unable to claim irq %d\n", irq);
115 goto err_unmap_mem;
116 }
117
118 error = input_register_device(input);
119 if (error) {
120 dev_err(&pdev->dev, "unable to register input device\n");
121 goto err_free_irq;
122 }
123
124 platform_set_drvdata(pdev, opencores_kbd);
125
126 return 0;
127
128 err_free_irq:
129 free_irq(irq, opencores_kbd);
130 err_unmap_mem:
131 iounmap(opencores_kbd->addr);
132 err_rel_mem:
133 release_mem_region(res->start, resource_size(res));
134 err_free_mem:
135 input_free_device(input);
136 kfree(opencores_kbd);
137
138 return error;
139}
140
141static int __devexit opencores_kbd_remove(struct platform_device *pdev)
142{
143 struct opencores_kbd *opencores_kbd = platform_get_drvdata(pdev);
144
145 free_irq(opencores_kbd->irq, opencores_kbd);
146
147 iounmap(opencores_kbd->addr);
148 release_mem_region(opencores_kbd->addr_res->start,
149 resource_size(opencores_kbd->addr_res));
150 input_unregister_device(opencores_kbd->input);
151 kfree(opencores_kbd);
152
153 platform_set_drvdata(pdev, NULL);
154
155 return 0;
156}
157
158static struct platform_driver opencores_kbd_device_driver = {
159 .probe = opencores_kbd_probe,
160 .remove = __devexit_p(opencores_kbd_remove),
161 .driver = {
162 .name = "opencores-kbd",
163 },
164};
165
166static int __init opencores_kbd_init(void)
167{
168 return platform_driver_register(&opencores_kbd_device_driver);
169}
170module_init(opencores_kbd_init);
171
172static void __exit opencores_kbd_exit(void)
173{
174 platform_driver_unregister(&opencores_kbd_device_driver);
175}
176module_exit(opencores_kbd_exit);
177
178MODULE_LICENSE("GPL");
179MODULE_AUTHOR("Javier Herrero <jherrero@hvsistemas.es>");
180MODULE_DESCRIPTION("Keyboard driver for OpenCores Keyboard Controller");
diff --git a/drivers/input/keyboard/qt2160.c b/drivers/input/keyboard/qt2160.c
new file mode 100644
index 000000000000..191cc51d6cf8
--- /dev/null
+++ b/drivers/input/keyboard/qt2160.c
@@ -0,0 +1,397 @@
1/*
2 * qt2160.c - Atmel AT42QT2160 Touch Sense Controller
3 *
4 * Copyright (C) 2009 Raphael Derosso Pereira <raphaelpereira@gmail.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20
21#include <linux/kernel.h>
22#include <linux/init.h>
23#include <linux/module.h>
24#include <linux/slab.h>
25#include <linux/jiffies.h>
26#include <linux/i2c.h>
27#include <linux/irq.h>
28#include <linux/interrupt.h>
29#include <linux/input.h>
30
31#define QT2160_VALID_CHIPID 0x11
32
33#define QT2160_CMD_CHIPID 0
34#define QT2160_CMD_CODEVER 1
35#define QT2160_CMD_GSTAT 2
36#define QT2160_CMD_KEYS3 3
37#define QT2160_CMD_KEYS4 4
38#define QT2160_CMD_SLIDE 5
39#define QT2160_CMD_GPIOS 6
40#define QT2160_CMD_SUBVER 7
41#define QT2160_CMD_CALIBRATE 10
42
43#define QT2160_CYCLE_INTERVAL (2*HZ)
44
45static unsigned char qt2160_key2code[] = {
46 KEY_0, KEY_1, KEY_2, KEY_3,
47 KEY_4, KEY_5, KEY_6, KEY_7,
48 KEY_8, KEY_9, KEY_A, KEY_B,
49 KEY_C, KEY_D, KEY_E, KEY_F,
50};
51
52struct qt2160_data {
53 struct i2c_client *client;
54 struct input_dev *input;
55 struct delayed_work dwork;
56 spinlock_t lock; /* Protects canceling/rescheduling of dwork */
57 unsigned short keycodes[ARRAY_SIZE(qt2160_key2code)];
58 u16 key_matrix;
59};
60
61static int qt2160_read_block(struct i2c_client *client,
62 u8 inireg, u8 *buffer, unsigned int count)
63{
64 int error, idx = 0;
65
66 /*
67 * Can't use SMBus block data read. Check for I2C functionality to speed
68 * things up whenever possible. Otherwise we will be forced to read
69 * sequentially.
70 */
71 if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
72
73 error = i2c_smbus_write_byte(client, inireg + idx);
74 if (error) {
75 dev_err(&client->dev,
76 "couldn't send request. Returned %d\n", error);
77 return error;
78 }
79
80 error = i2c_master_recv(client, buffer, count);
81 if (error != count) {
82 dev_err(&client->dev,
83 "couldn't read registers. Returned %d bytes\n", error);
84 return error;
85 }
86 } else {
87
88 while (count--) {
89 int data;
90
91 error = i2c_smbus_write_byte(client, inireg + idx);
92 if (error) {
93 dev_err(&client->dev,
94 "couldn't send request. Returned %d\n", error);
95 return error;
96 }
97
98 data = i2c_smbus_read_byte(client);
99 if (data < 0) {
100 dev_err(&client->dev,
101 "couldn't read register. Returned %d\n", data);
102 return data;
103 }
104
105 buffer[idx++] = data;
106 }
107 }
108
109 return 0;
110}
111
112static int qt2160_get_key_matrix(struct qt2160_data *qt2160)
113{
114 struct i2c_client *client = qt2160->client;
115 struct input_dev *input = qt2160->input;
116 u8 regs[6];
117 u16 old_matrix, new_matrix;
118 int ret, i, mask;
119
120 dev_dbg(&client->dev, "requesting keys...\n");
121
122 /*
123 * Read all registers from General Status Register
124 * to GPIOs register
125 */
126 ret = qt2160_read_block(client, QT2160_CMD_GSTAT, regs, 6);
127 if (ret) {
128 dev_err(&client->dev,
129 "could not perform chip read.\n");
130 return ret;
131 }
132
133 old_matrix = qt2160->key_matrix;
134 qt2160->key_matrix = new_matrix = (regs[2] << 8) | regs[1];
135
136 mask = 0x01;
137 for (i = 0; i < 16; ++i, mask <<= 1) {
138 int keyval = new_matrix & mask;
139
140 if ((old_matrix & mask) != keyval) {
141 input_report_key(input, qt2160->keycodes[i], keyval);
142 dev_dbg(&client->dev, "key %d %s\n",
143 i, keyval ? "pressed" : "released");
144 }
145 }
146
147 input_sync(input);
148
149 return 0;
150}
151
152static irqreturn_t qt2160_irq(int irq, void *_qt2160)
153{
154 struct qt2160_data *qt2160 = _qt2160;
155 unsigned long flags;
156
157 spin_lock_irqsave(&qt2160->lock, flags);
158
159 __cancel_delayed_work(&qt2160->dwork);
160 schedule_delayed_work(&qt2160->dwork, 0);
161
162 spin_unlock_irqrestore(&qt2160->lock, flags);
163
164 return IRQ_HANDLED;
165}
166
167static void qt2160_schedule_read(struct qt2160_data *qt2160)
168{
169 spin_lock_irq(&qt2160->lock);
170 schedule_delayed_work(&qt2160->dwork, QT2160_CYCLE_INTERVAL);
171 spin_unlock_irq(&qt2160->lock);
172}
173
174static void qt2160_worker(struct work_struct *work)
175{
176 struct qt2160_data *qt2160 =
177 container_of(work, struct qt2160_data, dwork.work);
178
179 dev_dbg(&qt2160->client->dev, "worker\n");
180
181 qt2160_get_key_matrix(qt2160);
182
183 /* Avoid device lock up by checking every so often */
184 qt2160_schedule_read(qt2160);
185}
186
187static int __devinit qt2160_read(struct i2c_client *client, u8 reg)
188{
189 int ret;
190
191 ret = i2c_smbus_write_byte(client, reg);
192 if (ret) {
193 dev_err(&client->dev,
194 "couldn't send request. Returned %d\n", ret);
195 return ret;
196 }
197
198 ret = i2c_smbus_read_byte(client);
199 if (ret < 0) {
200 dev_err(&client->dev,
201 "couldn't read register. Returned %d\n", ret);
202 return ret;
203 }
204
205 return ret;
206}
207
208static int __devinit qt2160_write(struct i2c_client *client, u8 reg, u8 data)
209{
210 int error;
211
212 error = i2c_smbus_write_byte(client, reg);
213 if (error) {
214 dev_err(&client->dev,
215 "couldn't send request. Returned %d\n", error);
216 return error;
217 }
218
219 error = i2c_smbus_write_byte(client, data);
220 if (error) {
221 dev_err(&client->dev,
222 "couldn't write data. Returned %d\n", error);
223 return error;
224 }
225
226 return error;
227}
228
229
230static bool __devinit qt2160_identify(struct i2c_client *client)
231{
232 int id, ver, rev;
233
234 /* Read Chid ID to check if chip is valid */
235 id = qt2160_read(client, QT2160_CMD_CHIPID);
236 if (id != QT2160_VALID_CHIPID) {
237 dev_err(&client->dev, "ID %d not supported\n", id);
238 return false;
239 }
240
241 /* Read chip firmware version */
242 ver = qt2160_read(client, QT2160_CMD_CODEVER);
243 if (ver < 0) {
244 dev_err(&client->dev, "could not get firmware version\n");
245 return false;
246 }
247
248 /* Read chip firmware revision */
249 rev = qt2160_read(client, QT2160_CMD_SUBVER);
250 if (rev < 0) {
251 dev_err(&client->dev, "could not get firmware revision\n");
252 return false;
253 }
254
255 dev_info(&client->dev, "AT42QT2160 firmware version %d.%d.%d\n",
256 ver >> 4, ver & 0xf, rev);
257
258 return true;
259}
260
261static int __devinit qt2160_probe(struct i2c_client *client,
262 const struct i2c_device_id *id)
263{
264 struct qt2160_data *qt2160;
265 struct input_dev *input;
266 int i;
267 int error;
268
269 /* Check functionality */
270 error = i2c_check_functionality(client->adapter,
271 I2C_FUNC_SMBUS_BYTE);
272 if (!error) {
273 dev_err(&client->dev, "%s adapter not supported\n",
274 dev_driver_string(&client->adapter->dev));
275 return -ENODEV;
276 }
277
278 if (!qt2160_identify(client))
279 return -ENODEV;
280
281 /* Chip is valid and active. Allocate structure */
282 qt2160 = kzalloc(sizeof(struct qt2160_data), GFP_KERNEL);
283 input = input_allocate_device();
284 if (!qt2160 || !input) {
285 dev_err(&client->dev, "insufficient memory\n");
286 error = -ENOMEM;
287 goto err_free_mem;
288 }
289
290 qt2160->client = client;
291 qt2160->input = input;
292 INIT_DELAYED_WORK(&qt2160->dwork, qt2160_worker);
293 spin_lock_init(&qt2160->lock);
294
295 input->name = "AT42QT2160 Touch Sense Keyboard";
296 input->id.bustype = BUS_I2C;
297
298 input->keycode = qt2160->keycodes;
299 input->keycodesize = sizeof(qt2160->keycodes[0]);
300 input->keycodemax = ARRAY_SIZE(qt2160_key2code);
301
302 __set_bit(EV_KEY, input->evbit);
303 __clear_bit(EV_REP, input->evbit);
304 for (i = 0; i < ARRAY_SIZE(qt2160_key2code); i++) {
305 qt2160->keycodes[i] = qt2160_key2code[i];
306 __set_bit(qt2160_key2code[i], input->keybit);
307 }
308 __clear_bit(KEY_RESERVED, input->keybit);
309
310 /* Calibrate device */
311 error = qt2160_write(client, QT2160_CMD_CALIBRATE, 1);
312 if (error) {
313 dev_err(&client->dev, "failed to calibrate device\n");
314 goto err_free_mem;
315 }
316
317 if (client->irq) {
318 error = request_irq(client->irq, qt2160_irq,
319 IRQF_TRIGGER_FALLING, "qt2160", qt2160);
320 if (error) {
321 dev_err(&client->dev,
322 "failed to allocate irq %d\n", client->irq);
323 goto err_free_mem;
324 }
325 }
326
327 error = input_register_device(qt2160->input);
328 if (error) {
329 dev_err(&client->dev,
330 "Failed to register input device\n");
331 goto err_free_irq;
332 }
333
334 i2c_set_clientdata(client, qt2160);
335 qt2160_schedule_read(qt2160);
336
337 return 0;
338
339err_free_irq:
340 if (client->irq)
341 free_irq(client->irq, qt2160);
342err_free_mem:
343 input_free_device(input);
344 kfree(qt2160);
345 return error;
346}
347
348static int __devexit qt2160_remove(struct i2c_client *client)
349{
350 struct qt2160_data *qt2160 = i2c_get_clientdata(client);
351
352 /* Release IRQ so no queue will be scheduled */
353 if (client->irq)
354 free_irq(client->irq, qt2160);
355
356 cancel_delayed_work_sync(&qt2160->dwork);
357
358 input_unregister_device(qt2160->input);
359 kfree(qt2160);
360
361 i2c_set_clientdata(client, NULL);
362 return 0;
363}
364
365static struct i2c_device_id qt2160_idtable[] = {
366 { "qt2160", 0, },
367 { }
368};
369
370MODULE_DEVICE_TABLE(i2c, qt2160_idtable);
371
372static struct i2c_driver qt2160_driver = {
373 .driver = {
374 .name = "qt2160",
375 .owner = THIS_MODULE,
376 },
377
378 .id_table = qt2160_idtable,
379 .probe = qt2160_probe,
380 .remove = __devexit_p(qt2160_remove),
381};
382
383static int __init qt2160_init(void)
384{
385 return i2c_add_driver(&qt2160_driver);
386}
387module_init(qt2160_init);
388
389static void __exit qt2160_cleanup(void)
390{
391 i2c_del_driver(&qt2160_driver);
392}
393module_exit(qt2160_cleanup);
394
395MODULE_AUTHOR("Raphael Derosso Pereira <raphaelpereira@gmail.com>");
396MODULE_DESCRIPTION("Driver for AT42QT2160 Touch Sensor");
397MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/dm355evm_keys.c b/drivers/input/misc/dm355evm_keys.c
index 0918acae584a..f2b67dc81d80 100644
--- a/drivers/input/misc/dm355evm_keys.c
+++ b/drivers/input/misc/dm355evm_keys.c
@@ -96,7 +96,13 @@ static struct {
96 { 0x3169, KEY_PAUSE, }, 96 { 0x3169, KEY_PAUSE, },
97}; 97};
98 98
99/* runs in an IRQ thread -- can (and will!) sleep */ 99/*
100 * Because we communicate with the MSP430 using I2C, and all I2C calls
101 * in Linux sleep, we use a threaded IRQ handler. The IRQ itself is
102 * active low, but we go through the GPIO controller so we can trigger
103 * on falling edges and not worry about enabling/disabling the IRQ in
104 * the keypress handling path.
105 */
100static irqreturn_t dm355evm_keys_irq(int irq, void *_keys) 106static irqreturn_t dm355evm_keys_irq(int irq, void *_keys)
101{ 107{
102 struct dm355evm_keys *keys = _keys; 108 struct dm355evm_keys *keys = _keys;
@@ -171,18 +177,6 @@ static irqreturn_t dm355evm_keys_irq(int irq, void *_keys)
171 return IRQ_HANDLED; 177 return IRQ_HANDLED;
172} 178}
173 179
174/*
175 * Because we communicate with the MSP430 using I2C, and all I2C calls
176 * in Linux sleep, we use a threaded IRQ handler. The IRQ itself is
177 * active low, but we go through the GPIO controller so we can trigger
178 * on falling edges and not worry about enabling/disabling the IRQ in
179 * the keypress handling path.
180 */
181static irqreturn_t dm355evm_keys_hardirq(int irq, void *_keys)
182{
183 return IRQ_WAKE_THREAD;
184}
185
186static int dm355evm_setkeycode(struct input_dev *dev, int index, int keycode) 180static int dm355evm_setkeycode(struct input_dev *dev, int index, int keycode)
187{ 181{
188 u16 old_keycode; 182 u16 old_keycode;
@@ -257,10 +251,8 @@ static int __devinit dm355evm_keys_probe(struct platform_device *pdev)
257 251
258 /* REVISIT: flush the event queue? */ 252 /* REVISIT: flush the event queue? */
259 253
260 status = request_threaded_irq(keys->irq, 254 status = request_threaded_irq(keys->irq, NULL, dm355evm_keys_irq,
261 dm355evm_keys_hardirq, dm355evm_keys_irq, 255 IRQF_TRIGGER_FALLING, dev_name(&pdev->dev), keys);
262 IRQF_TRIGGER_FALLING,
263 dev_name(&pdev->dev), keys);
264 if (status < 0) 256 if (status < 0)
265 goto fail1; 257 goto fail1;
266 258
diff --git a/drivers/input/mouse/sentelic.c b/drivers/input/mouse/sentelic.c
index 84e2fc04d11b..f84cbd97c884 100644
--- a/drivers/input/mouse/sentelic.c
+++ b/drivers/input/mouse/sentelic.c
@@ -92,7 +92,8 @@ static int fsp_reg_read(struct psmouse *psmouse, int reg_addr, int *reg_val)
92 */ 92 */
93 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE); 93 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE);
94 psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); 94 psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
95 mutex_lock(&ps2dev->cmd_mutex); 95
96 ps2_begin_command(ps2dev);
96 97
97 if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0) 98 if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0)
98 goto out; 99 goto out;
@@ -126,7 +127,7 @@ static int fsp_reg_read(struct psmouse *psmouse, int reg_addr, int *reg_val)
126 rc = 0; 127 rc = 0;
127 128
128 out: 129 out:
129 mutex_unlock(&ps2dev->cmd_mutex); 130 ps2_end_command(ps2dev);
130 ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 131 ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE);
131 psmouse_set_state(psmouse, PSMOUSE_ACTIVATED); 132 psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
132 dev_dbg(&ps2dev->serio->dev, "READ REG: 0x%02x is 0x%02x (rc = %d)\n", 133 dev_dbg(&ps2dev->serio->dev, "READ REG: 0x%02x is 0x%02x (rc = %d)\n",
@@ -140,7 +141,7 @@ static int fsp_reg_write(struct psmouse *psmouse, int reg_addr, int reg_val)
140 unsigned char v; 141 unsigned char v;
141 int rc = -1; 142 int rc = -1;
142 143
143 mutex_lock(&ps2dev->cmd_mutex); 144 ps2_begin_command(ps2dev);
144 145
145 if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0) 146 if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0)
146 goto out; 147 goto out;
@@ -179,7 +180,7 @@ static int fsp_reg_write(struct psmouse *psmouse, int reg_addr, int reg_val)
179 rc = 0; 180 rc = 0;
180 181
181 out: 182 out:
182 mutex_unlock(&ps2dev->cmd_mutex); 183 ps2_end_command(ps2dev);
183 dev_dbg(&ps2dev->serio->dev, "WRITE REG: 0x%02x to 0x%02x (rc = %d)\n", 184 dev_dbg(&ps2dev->serio->dev, "WRITE REG: 0x%02x to 0x%02x (rc = %d)\n",
184 reg_addr, reg_val, rc); 185 reg_addr, reg_val, rc);
185 return rc; 186 return rc;
@@ -214,7 +215,8 @@ static int fsp_page_reg_read(struct psmouse *psmouse, int *reg_val)
214 215
215 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE); 216 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE);
216 psmouse_set_state(psmouse, PSMOUSE_CMD_MODE); 217 psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
217 mutex_lock(&ps2dev->cmd_mutex); 218
219 ps2_begin_command(ps2dev);
218 220
219 if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0) 221 if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0)
220 goto out; 222 goto out;
@@ -236,7 +238,7 @@ static int fsp_page_reg_read(struct psmouse *psmouse, int *reg_val)
236 rc = 0; 238 rc = 0;
237 239
238 out: 240 out:
239 mutex_unlock(&ps2dev->cmd_mutex); 241 ps2_end_command(ps2dev);
240 ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE); 242 ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE);
241 psmouse_set_state(psmouse, PSMOUSE_ACTIVATED); 243 psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
242 dev_dbg(&ps2dev->serio->dev, "READ PAGE REG: 0x%02x (rc = %d)\n", 244 dev_dbg(&ps2dev->serio->dev, "READ PAGE REG: 0x%02x (rc = %d)\n",
@@ -250,7 +252,7 @@ static int fsp_page_reg_write(struct psmouse *psmouse, int reg_val)
250 unsigned char v; 252 unsigned char v;
251 int rc = -1; 253 int rc = -1;
252 254
253 mutex_lock(&ps2dev->cmd_mutex); 255 ps2_begin_command(ps2dev);
254 256
255 if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0) 257 if (ps2_sendbyte(ps2dev, 0xf3, FSP_CMD_TIMEOUT) < 0)
256 goto out; 258 goto out;
@@ -275,7 +277,7 @@ static int fsp_page_reg_write(struct psmouse *psmouse, int reg_val)
275 rc = 0; 277 rc = 0;
276 278
277 out: 279 out:
278 mutex_unlock(&ps2dev->cmd_mutex); 280 ps2_end_command(ps2dev);
279 dev_dbg(&ps2dev->serio->dev, "WRITE PAGE REG: to 0x%02x (rc = %d)\n", 281 dev_dbg(&ps2dev->serio->dev, "WRITE PAGE REG: to 0x%02x (rc = %d)\n",
280 reg_val, rc); 282 reg_val, rc);
281 return rc; 283 return rc;
diff --git a/drivers/input/mouse/synaptics_i2c.c b/drivers/input/mouse/synaptics_i2c.c
index eac9fdde7ee9..7283c78044af 100644
--- a/drivers/input/mouse/synaptics_i2c.c
+++ b/drivers/input/mouse/synaptics_i2c.c
@@ -203,7 +203,7 @@ MODULE_PARM_DESC(no_filter, "No Filter. Default = 0 (off)");
203 * and the irq configuration should be set to Falling Edge Trigger 203 * and the irq configuration should be set to Falling Edge Trigger
204 */ 204 */
205/* Control IRQ / Polling option */ 205/* Control IRQ / Polling option */
206static int polling_req; 206static bool polling_req;
207module_param(polling_req, bool, 0444); 207module_param(polling_req, bool, 0444);
208MODULE_PARM_DESC(polling_req, "Request Polling. Default = 0 (use irq)"); 208MODULE_PARM_DESC(polling_req, "Request Polling. Default = 0 (use irq)");
209 209
@@ -217,6 +217,7 @@ struct synaptics_i2c {
217 struct i2c_client *client; 217 struct i2c_client *client;
218 struct input_dev *input; 218 struct input_dev *input;
219 struct delayed_work dwork; 219 struct delayed_work dwork;
220 spinlock_t lock;
220 int no_data_count; 221 int no_data_count;
221 int no_decel_param; 222 int no_decel_param;
222 int reduce_report_param; 223 int reduce_report_param;
@@ -366,17 +367,28 @@ static bool synaptics_i2c_get_input(struct synaptics_i2c *touch)
366 return xy_delta || gesture; 367 return xy_delta || gesture;
367} 368}
368 369
369static irqreturn_t synaptics_i2c_irq(int irq, void *dev_id) 370static void synaptics_i2c_reschedule_work(struct synaptics_i2c *touch,
371 unsigned long delay)
370{ 372{
371 struct synaptics_i2c *touch = dev_id; 373 unsigned long flags;
374
375 spin_lock_irqsave(&touch->lock, flags);
372 376
373 /* 377 /*
374 * We want to have the work run immediately but it might have 378 * If work is already scheduled then subsequent schedules will not
375 * already been scheduled with a delay, that's why we have to 379 * change the scheduled time that's why we have to cancel it first.
376 * cancel it first.
377 */ 380 */
378 cancel_delayed_work(&touch->dwork); 381 __cancel_delayed_work(&touch->dwork);
379 schedule_delayed_work(&touch->dwork, 0); 382 schedule_delayed_work(&touch->dwork, delay);
383
384 spin_unlock_irqrestore(&touch->lock, flags);
385}
386
387static irqreturn_t synaptics_i2c_irq(int irq, void *dev_id)
388{
389 struct synaptics_i2c *touch = dev_id;
390
391 synaptics_i2c_reschedule_work(touch, 0);
380 392
381 return IRQ_HANDLED; 393 return IRQ_HANDLED;
382} 394}
@@ -452,7 +464,7 @@ static void synaptics_i2c_work_handler(struct work_struct *work)
452 * We poll the device once in THREAD_IRQ_SLEEP_SECS and 464 * We poll the device once in THREAD_IRQ_SLEEP_SECS and
453 * if error is detected, we try to reset and reconfigure the touchpad. 465 * if error is detected, we try to reset and reconfigure the touchpad.
454 */ 466 */
455 schedule_delayed_work(&touch->dwork, delay); 467 synaptics_i2c_reschedule_work(touch, delay);
456} 468}
457 469
458static int synaptics_i2c_open(struct input_dev *input) 470static int synaptics_i2c_open(struct input_dev *input)
@@ -465,8 +477,8 @@ static int synaptics_i2c_open(struct input_dev *input)
465 return ret; 477 return ret;
466 478
467 if (polling_req) 479 if (polling_req)
468 schedule_delayed_work(&touch->dwork, 480 synaptics_i2c_reschedule_work(touch,
469 msecs_to_jiffies(NO_DATA_SLEEP_MSECS)); 481 msecs_to_jiffies(NO_DATA_SLEEP_MSECS));
470 482
471 return 0; 483 return 0;
472} 484}
@@ -521,6 +533,7 @@ struct synaptics_i2c *synaptics_i2c_touch_create(struct i2c_client *client)
521 touch->scan_rate_param = scan_rate; 533 touch->scan_rate_param = scan_rate;
522 set_scan_rate(touch, scan_rate); 534 set_scan_rate(touch, scan_rate);
523 INIT_DELAYED_WORK(&touch->dwork, synaptics_i2c_work_handler); 535 INIT_DELAYED_WORK(&touch->dwork, synaptics_i2c_work_handler);
536 spin_lock_init(&touch->lock);
524 537
525 return touch; 538 return touch;
526} 539}
@@ -535,14 +548,12 @@ static int __devinit synaptics_i2c_probe(struct i2c_client *client,
535 if (!touch) 548 if (!touch)
536 return -ENOMEM; 549 return -ENOMEM;
537 550
538 i2c_set_clientdata(client, touch);
539
540 ret = synaptics_i2c_reset_config(client); 551 ret = synaptics_i2c_reset_config(client);
541 if (ret) 552 if (ret)
542 goto err_mem_free; 553 goto err_mem_free;
543 554
544 if (client->irq < 1) 555 if (client->irq < 1)
545 polling_req = 1; 556 polling_req = true;
546 557
547 touch->input = input_allocate_device(); 558 touch->input = input_allocate_device();
548 if (!touch->input) { 559 if (!touch->input) {
@@ -563,7 +574,7 @@ static int __devinit synaptics_i2c_probe(struct i2c_client *client,
563 dev_warn(&touch->client->dev, 574 dev_warn(&touch->client->dev,
564 "IRQ request failed: %d, " 575 "IRQ request failed: %d, "
565 "falling back to polling\n", ret); 576 "falling back to polling\n", ret);
566 polling_req = 1; 577 polling_req = true;
567 synaptics_i2c_reg_set(touch->client, 578 synaptics_i2c_reg_set(touch->client,
568 INTERRUPT_EN_REG, 0); 579 INTERRUPT_EN_REG, 0);
569 } 580 }
@@ -580,12 +591,14 @@ static int __devinit synaptics_i2c_probe(struct i2c_client *client,
580 "Input device register failed: %d\n", ret); 591 "Input device register failed: %d\n", ret);
581 goto err_input_free; 592 goto err_input_free;
582 } 593 }
594
595 i2c_set_clientdata(client, touch);
596
583 return 0; 597 return 0;
584 598
585err_input_free: 599err_input_free:
586 input_free_device(touch->input); 600 input_free_device(touch->input);
587err_mem_free: 601err_mem_free:
588 i2c_set_clientdata(client, NULL);
589 kfree(touch); 602 kfree(touch);
590 603
591 return ret; 604 return ret;
@@ -596,7 +609,7 @@ static int __devexit synaptics_i2c_remove(struct i2c_client *client)
596 struct synaptics_i2c *touch = i2c_get_clientdata(client); 609 struct synaptics_i2c *touch = i2c_get_clientdata(client);
597 610
598 if (!polling_req) 611 if (!polling_req)
599 free_irq(touch->client->irq, touch); 612 free_irq(client->irq, touch);
600 613
601 input_unregister_device(touch->input); 614 input_unregister_device(touch->input);
602 i2c_set_clientdata(client, NULL); 615 i2c_set_clientdata(client, NULL);
@@ -627,8 +640,8 @@ static int synaptics_i2c_resume(struct i2c_client *client)
627 if (ret) 640 if (ret)
628 return ret; 641 return ret;
629 642
630 schedule_delayed_work(&touch->dwork, 643 synaptics_i2c_reschedule_work(touch,
631 msecs_to_jiffies(NO_DATA_SLEEP_MSECS)); 644 msecs_to_jiffies(NO_DATA_SLEEP_MSECS));
632 645
633 return 0; 646 return 0;
634} 647}
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index eb3ff94af58c..bc56e52b945f 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -87,8 +87,22 @@ static bool i8042_bypass_aux_irq_test;
87 87
88#include "i8042.h" 88#include "i8042.h"
89 89
90/*
91 * i8042_lock protects serialization between i8042_command and
92 * the interrupt handler.
93 */
90static DEFINE_SPINLOCK(i8042_lock); 94static DEFINE_SPINLOCK(i8042_lock);
91 95
96/*
97 * Writers to AUX and KBD ports as well as users issuing i8042_command
98 * directly should acquire i8042_mutex (by means of calling
99 * i8042_lock_chip() and i8042_unlock_ship() helpers) to ensure that
100 * they do not disturb each other (unfortunately in many i8042
101 * implementations write to one of the ports will immediately abort
102 * command that is being processed by another port).
103 */
104static DEFINE_MUTEX(i8042_mutex);
105
92struct i8042_port { 106struct i8042_port {
93 struct serio *serio; 107 struct serio *serio;
94 int irq; 108 int irq;
@@ -113,6 +127,18 @@ static struct platform_device *i8042_platform_device;
113 127
114static irqreturn_t i8042_interrupt(int irq, void *dev_id); 128static irqreturn_t i8042_interrupt(int irq, void *dev_id);
115 129
130void i8042_lock_chip(void)
131{
132 mutex_lock(&i8042_mutex);
133}
134EXPORT_SYMBOL(i8042_lock_chip);
135
136void i8042_unlock_chip(void)
137{
138 mutex_unlock(&i8042_mutex);
139}
140EXPORT_SYMBOL(i8042_unlock_chip);
141
116/* 142/*
117 * The i8042_wait_read() and i8042_wait_write functions wait for the i8042 to 143 * The i8042_wait_read() and i8042_wait_write functions wait for the i8042 to
118 * be ready for reading values from it / writing values to it. 144 * be ready for reading values from it / writing values to it.
@@ -1161,6 +1187,21 @@ static void __devexit i8042_unregister_ports(void)
1161 } 1187 }
1162} 1188}
1163 1189
1190/*
1191 * Checks whether port belongs to i8042 controller.
1192 */
1193bool i8042_check_port_owner(const struct serio *port)
1194{
1195 int i;
1196
1197 for (i = 0; i < I8042_NUM_PORTS; i++)
1198 if (i8042_ports[i].serio == port)
1199 return true;
1200
1201 return false;
1202}
1203EXPORT_SYMBOL(i8042_check_port_owner);
1204
1164static void i8042_free_irqs(void) 1205static void i8042_free_irqs(void)
1165{ 1206{
1166 if (i8042_aux_irq_registered) 1207 if (i8042_aux_irq_registered)
diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c
index 3a95b508bf27..769ba65a585a 100644
--- a/drivers/input/serio/libps2.c
+++ b/drivers/input/serio/libps2.c
@@ -17,6 +17,7 @@
17#include <linux/interrupt.h> 17#include <linux/interrupt.h>
18#include <linux/input.h> 18#include <linux/input.h>
19#include <linux/serio.h> 19#include <linux/serio.h>
20#include <linux/i8042.h>
20#include <linux/init.h> 21#include <linux/init.h>
21#include <linux/libps2.h> 22#include <linux/libps2.h>
22 23
@@ -54,6 +55,24 @@ int ps2_sendbyte(struct ps2dev *ps2dev, unsigned char byte, int timeout)
54} 55}
55EXPORT_SYMBOL(ps2_sendbyte); 56EXPORT_SYMBOL(ps2_sendbyte);
56 57
58void ps2_begin_command(struct ps2dev *ps2dev)
59{
60 mutex_lock(&ps2dev->cmd_mutex);
61
62 if (i8042_check_port_owner(ps2dev->serio))
63 i8042_lock_chip();
64}
65EXPORT_SYMBOL(ps2_begin_command);
66
67void ps2_end_command(struct ps2dev *ps2dev)
68{
69 if (i8042_check_port_owner(ps2dev->serio))
70 i8042_unlock_chip();
71
72 mutex_unlock(&ps2dev->cmd_mutex);
73}
74EXPORT_SYMBOL(ps2_end_command);
75
57/* 76/*
58 * ps2_drain() waits for device to transmit requested number of bytes 77 * ps2_drain() waits for device to transmit requested number of bytes
59 * and discards them. 78 * and discards them.
@@ -66,7 +85,7 @@ void ps2_drain(struct ps2dev *ps2dev, int maxbytes, int timeout)
66 maxbytes = sizeof(ps2dev->cmdbuf); 85 maxbytes = sizeof(ps2dev->cmdbuf);
67 } 86 }
68 87
69 mutex_lock(&ps2dev->cmd_mutex); 88 ps2_begin_command(ps2dev);
70 89
71 serio_pause_rx(ps2dev->serio); 90 serio_pause_rx(ps2dev->serio);
72 ps2dev->flags = PS2_FLAG_CMD; 91 ps2dev->flags = PS2_FLAG_CMD;
@@ -76,7 +95,8 @@ void ps2_drain(struct ps2dev *ps2dev, int maxbytes, int timeout)
76 wait_event_timeout(ps2dev->wait, 95 wait_event_timeout(ps2dev->wait,
77 !(ps2dev->flags & PS2_FLAG_CMD), 96 !(ps2dev->flags & PS2_FLAG_CMD),
78 msecs_to_jiffies(timeout)); 97 msecs_to_jiffies(timeout));
79 mutex_unlock(&ps2dev->cmd_mutex); 98
99 ps2_end_command(ps2dev);
80} 100}
81EXPORT_SYMBOL(ps2_drain); 101EXPORT_SYMBOL(ps2_drain);
82 102
@@ -237,9 +257,9 @@ int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command)
237{ 257{
238 int rc; 258 int rc;
239 259
240 mutex_lock(&ps2dev->cmd_mutex); 260 ps2_begin_command(ps2dev);
241 rc = __ps2_command(ps2dev, param, command); 261 rc = __ps2_command(ps2dev, param, command);
242 mutex_unlock(&ps2dev->cmd_mutex); 262 ps2_end_command(ps2dev);
243 263
244 return rc; 264 return rc;
245} 265}
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index ab02d72afbf3..8cc453c85ea7 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -48,8 +48,8 @@ config TOUCHSCREEN_AD7879_I2C
48 select TOUCHSCREEN_AD7879 48 select TOUCHSCREEN_AD7879
49 help 49 help
50 Say Y here if you have a touchscreen interface using the 50 Say Y here if you have a touchscreen interface using the
51 AD7879-1 controller, and your board-specific initialization 51 AD7879-1/AD7889-1 controller, and your board-specific
52 code includes that in its table of I2C devices. 52 initialization code includes that in its table of I2C devices.
53 53
54 If unsure, say N (but it's safe to say "Y"). 54 If unsure, say N (but it's safe to say "Y").
55 55
@@ -62,7 +62,7 @@ config TOUCHSCREEN_AD7879_SPI
62 select TOUCHSCREEN_AD7879 62 select TOUCHSCREEN_AD7879
63 help 63 help
64 Say Y here if you have a touchscreen interface using the 64 Say Y here if you have a touchscreen interface using the
65 AD7879 controller, and your board-specific initialization 65 AD7879/AD7889 controller, and your board-specific initialization
66 code includes that in its table of SPI devices. 66 code includes that in its table of SPI devices.
67 67
68 If unsure, say N (but it's safe to say "Y"). 68 If unsure, say N (but it's safe to say "Y").
@@ -169,6 +169,17 @@ config TOUCHSCREEN_WACOM_W8001
169 To compile this driver as a module, choose M here: the 169 To compile this driver as a module, choose M here: the
170 module will be called wacom_w8001. 170 module will be called wacom_w8001.
171 171
172config TOUCHSCREEN_MCS5000
173 tristate "MELFAS MCS-5000 touchscreen"
174 depends on I2C
175 help
176 Say Y here if you have the MELFAS MCS-5000 touchscreen controller
177 chip in your system.
178
179 If unsure, say N.
180
181 To compile this driver as a module, choose M here: the
182 module will be called mcs5000_ts.
172 183
173config TOUCHSCREEN_MTOUCH 184config TOUCHSCREEN_MTOUCH
174 tristate "MicroTouch serial touchscreens" 185 tristate "MicroTouch serial touchscreens"
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 4599bf7ad819..15fa62cffc77 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o
17obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o 17obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
18obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o 18obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
19obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o 19obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o
20obj-$(CONFIG_TOUCHSCREEN_MCS5000) += mcs5000_ts.o
20obj-$(CONFIG_TOUCHSCREEN_MIGOR) += migor_ts.o 21obj-$(CONFIG_TOUCHSCREEN_MIGOR) += migor_ts.o
21obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o 22obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o
22obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o 23obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
index 19b4db7e974d..f06332c9e21b 100644
--- a/drivers/input/touchscreen/ad7879.c
+++ b/drivers/input/touchscreen/ad7879.c
@@ -1,7 +1,8 @@
1/* 1/*
2 * Copyright (C) 2008 Michael Hennerich, Analog Devices Inc. 2 * Copyright (C) 2008-2009 Michael Hennerich, Analog Devices Inc.
3 * 3 *
4 * Description: AD7879 based touchscreen, and GPIO driver (I2C/SPI Interface) 4 * Description: AD7879/AD7889 based touchscreen, and GPIO driver
5 * (I2C/SPI Interface)
5 * 6 *
6 * Bugs: Enter bugs at http://blackfin.uclinux.org/ 7 * Bugs: Enter bugs at http://blackfin.uclinux.org/
7 * 8 *
@@ -747,6 +748,7 @@ static int __devexit ad7879_remove(struct i2c_client *client)
747 748
748static const struct i2c_device_id ad7879_id[] = { 749static const struct i2c_device_id ad7879_id[] = {
749 { "ad7879", 0 }, 750 { "ad7879", 0 },
751 { "ad7889", 0 },
750 { } 752 { }
751}; 753};
752MODULE_DEVICE_TABLE(i2c, ad7879_id); 754MODULE_DEVICE_TABLE(i2c, ad7879_id);
diff --git a/drivers/input/touchscreen/mcs5000_ts.c b/drivers/input/touchscreen/mcs5000_ts.c
new file mode 100644
index 000000000000..4c28b89757f9
--- /dev/null
+++ b/drivers/input/touchscreen/mcs5000_ts.c
@@ -0,0 +1,318 @@
1/*
2 * mcs5000_ts.c - Touchscreen driver for MELFAS MCS-5000 controller
3 *
4 * Copyright (C) 2009 Samsung Electronics Co.Ltd
5 * Author: Joonyoung Shim <jy0922.shim@samsung.com>
6 *
7 * Based on wm97xx-core.c
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 *
14 */
15
16#include <linux/module.h>
17#include <linux/init.h>
18#include <linux/i2c.h>
19#include <linux/i2c/mcs5000_ts.h>
20#include <linux/interrupt.h>
21#include <linux/input.h>
22#include <linux/irq.h>
23
24/* Registers */
25#define MCS5000_TS_STATUS 0x00
26#define STATUS_OFFSET 0
27#define STATUS_NO (0 << STATUS_OFFSET)
28#define STATUS_INIT (1 << STATUS_OFFSET)
29#define STATUS_SENSING (2 << STATUS_OFFSET)
30#define STATUS_COORD (3 << STATUS_OFFSET)
31#define STATUS_GESTURE (4 << STATUS_OFFSET)
32#define ERROR_OFFSET 4
33#define ERROR_NO (0 << ERROR_OFFSET)
34#define ERROR_POWER_ON_RESET (1 << ERROR_OFFSET)
35#define ERROR_INT_RESET (2 << ERROR_OFFSET)
36#define ERROR_EXT_RESET (3 << ERROR_OFFSET)
37#define ERROR_INVALID_REG_ADDRESS (8 << ERROR_OFFSET)
38#define ERROR_INVALID_REG_VALUE (9 << ERROR_OFFSET)
39
40#define MCS5000_TS_OP_MODE 0x01
41#define RESET_OFFSET 0
42#define RESET_NO (0 << RESET_OFFSET)
43#define RESET_EXT_SOFT (1 << RESET_OFFSET)
44#define OP_MODE_OFFSET 1
45#define OP_MODE_SLEEP (0 << OP_MODE_OFFSET)
46#define OP_MODE_ACTIVE (1 << OP_MODE_OFFSET)
47#define GESTURE_OFFSET 4
48#define GESTURE_DISABLE (0 << GESTURE_OFFSET)
49#define GESTURE_ENABLE (1 << GESTURE_OFFSET)
50#define PROXIMITY_OFFSET 5
51#define PROXIMITY_DISABLE (0 << PROXIMITY_OFFSET)
52#define PROXIMITY_ENABLE (1 << PROXIMITY_OFFSET)
53#define SCAN_MODE_OFFSET 6
54#define SCAN_MODE_INTERRUPT (0 << SCAN_MODE_OFFSET)
55#define SCAN_MODE_POLLING (1 << SCAN_MODE_OFFSET)
56#define REPORT_RATE_OFFSET 7
57#define REPORT_RATE_40 (0 << REPORT_RATE_OFFSET)
58#define REPORT_RATE_80 (1 << REPORT_RATE_OFFSET)
59
60#define MCS5000_TS_SENS_CTL 0x02
61#define MCS5000_TS_FILTER_CTL 0x03
62#define PRI_FILTER_OFFSET 0
63#define SEC_FILTER_OFFSET 4
64
65#define MCS5000_TS_X_SIZE_UPPER 0x08
66#define MCS5000_TS_X_SIZE_LOWER 0x09
67#define MCS5000_TS_Y_SIZE_UPPER 0x0A
68#define MCS5000_TS_Y_SIZE_LOWER 0x0B
69
70#define MCS5000_TS_INPUT_INFO 0x10
71#define INPUT_TYPE_OFFSET 0
72#define INPUT_TYPE_NONTOUCH (0 << INPUT_TYPE_OFFSET)
73#define INPUT_TYPE_SINGLE (1 << INPUT_TYPE_OFFSET)
74#define INPUT_TYPE_DUAL (2 << INPUT_TYPE_OFFSET)
75#define INPUT_TYPE_PALM (3 << INPUT_TYPE_OFFSET)
76#define INPUT_TYPE_PROXIMITY (7 << INPUT_TYPE_OFFSET)
77#define GESTURE_CODE_OFFSET 3
78#define GESTURE_CODE_NO (0 << GESTURE_CODE_OFFSET)
79
80#define MCS5000_TS_X_POS_UPPER 0x11
81#define MCS5000_TS_X_POS_LOWER 0x12
82#define MCS5000_TS_Y_POS_UPPER 0x13
83#define MCS5000_TS_Y_POS_LOWER 0x14
84#define MCS5000_TS_Z_POS 0x15
85#define MCS5000_TS_WIDTH 0x16
86#define MCS5000_TS_GESTURE_VAL 0x17
87#define MCS5000_TS_MODULE_REV 0x20
88#define MCS5000_TS_FIRMWARE_VER 0x21
89
90/* Touchscreen absolute values */
91#define MCS5000_MAX_XC 0x3ff
92#define MCS5000_MAX_YC 0x3ff
93
94enum mcs5000_ts_read_offset {
95 READ_INPUT_INFO,
96 READ_X_POS_UPPER,
97 READ_X_POS_LOWER,
98 READ_Y_POS_UPPER,
99 READ_Y_POS_LOWER,
100 READ_BLOCK_SIZE,
101};
102
103/* Each client has this additional data */
104struct mcs5000_ts_data {
105 struct i2c_client *client;
106 struct input_dev *input_dev;
107 const struct mcs5000_ts_platform_data *platform_data;
108};
109
110static irqreturn_t mcs5000_ts_interrupt(int irq, void *dev_id)
111{
112 struct mcs5000_ts_data *data = dev_id;
113 struct i2c_client *client = data->client;
114 u8 buffer[READ_BLOCK_SIZE];
115 int err;
116 int x;
117 int y;
118
119 err = i2c_smbus_read_i2c_block_data(client, MCS5000_TS_INPUT_INFO,
120 READ_BLOCK_SIZE, buffer);
121 if (err < 0) {
122 dev_err(&client->dev, "%s, err[%d]\n", __func__, err);
123 goto out;
124 }
125
126 switch (buffer[READ_INPUT_INFO]) {
127 case INPUT_TYPE_NONTOUCH:
128 input_report_key(data->input_dev, BTN_TOUCH, 0);
129 input_sync(data->input_dev);
130 break;
131
132 case INPUT_TYPE_SINGLE:
133 x = (buffer[READ_X_POS_UPPER] << 8) | buffer[READ_X_POS_LOWER];
134 y = (buffer[READ_Y_POS_UPPER] << 8) | buffer[READ_Y_POS_LOWER];
135
136 input_report_key(data->input_dev, BTN_TOUCH, 1);
137 input_report_abs(data->input_dev, ABS_X, x);
138 input_report_abs(data->input_dev, ABS_Y, y);
139 input_sync(data->input_dev);
140 break;
141
142 case INPUT_TYPE_DUAL:
143 /* TODO */
144 break;
145
146 case INPUT_TYPE_PALM:
147 /* TODO */
148 break;
149
150 case INPUT_TYPE_PROXIMITY:
151 /* TODO */
152 break;
153
154 default:
155 dev_err(&client->dev, "Unknown ts input type %d\n",
156 buffer[READ_INPUT_INFO]);
157 break;
158 }
159
160 out:
161 return IRQ_HANDLED;
162}
163
164static void mcs5000_ts_phys_init(struct mcs5000_ts_data *data)
165{
166 const struct mcs5000_ts_platform_data *platform_data =
167 data->platform_data;
168 struct i2c_client *client = data->client;
169
170 /* Touch reset & sleep mode */
171 i2c_smbus_write_byte_data(client, MCS5000_TS_OP_MODE,
172 RESET_EXT_SOFT | OP_MODE_SLEEP);
173
174 /* Touch size */
175 i2c_smbus_write_byte_data(client, MCS5000_TS_X_SIZE_UPPER,
176 platform_data->x_size >> 8);
177 i2c_smbus_write_byte_data(client, MCS5000_TS_X_SIZE_LOWER,
178 platform_data->x_size & 0xff);
179 i2c_smbus_write_byte_data(client, MCS5000_TS_Y_SIZE_UPPER,
180 platform_data->y_size >> 8);
181 i2c_smbus_write_byte_data(client, MCS5000_TS_Y_SIZE_LOWER,
182 platform_data->y_size & 0xff);
183
184 /* Touch active mode & 80 report rate */
185 i2c_smbus_write_byte_data(data->client, MCS5000_TS_OP_MODE,
186 OP_MODE_ACTIVE | REPORT_RATE_80);
187}
188
189static int __devinit mcs5000_ts_probe(struct i2c_client *client,
190 const struct i2c_device_id *id)
191{
192 struct mcs5000_ts_data *data;
193 struct input_dev *input_dev;
194 int ret;
195
196 if (!client->dev.platform_data)
197 return -EINVAL;
198
199 data = kzalloc(sizeof(struct mcs5000_ts_data), GFP_KERNEL);
200 input_dev = input_allocate_device();
201 if (!data || !input_dev) {
202 dev_err(&client->dev, "Failed to allocate memory\n");
203 ret = -ENOMEM;
204 goto err_free_mem;
205 }
206
207 data->client = client;
208 data->input_dev = input_dev;
209 data->platform_data = client->dev.platform_data;
210
211 input_dev->name = "MELPAS MCS-5000 Touchscreen";
212 input_dev->id.bustype = BUS_I2C;
213 input_dev->dev.parent = &client->dev;
214
215 __set_bit(EV_ABS, input_dev->evbit);
216 __set_bit(EV_KEY, input_dev->evbit);
217 __set_bit(BTN_TOUCH, input_dev->keybit);
218 input_set_abs_params(input_dev, ABS_X, 0, MCS5000_MAX_XC, 0, 0);
219 input_set_abs_params(input_dev, ABS_Y, 0, MCS5000_MAX_YC, 0, 0);
220
221 input_set_drvdata(input_dev, data);
222
223 if (data->platform_data->cfg_pin)
224 data->platform_data->cfg_pin();
225
226 ret = request_threaded_irq(client->irq, NULL, mcs5000_ts_interrupt,
227 IRQF_TRIGGER_LOW | IRQF_ONESHOT, "mcs5000_ts", data);
228
229 if (ret < 0) {
230 dev_err(&client->dev, "Failed to register interrupt\n");
231 goto err_free_mem;
232 }
233
234 ret = input_register_device(data->input_dev);
235 if (ret < 0)
236 goto err_free_irq;
237
238 mcs5000_ts_phys_init(data);
239 i2c_set_clientdata(client, data);
240
241 return 0;
242
243err_free_irq:
244 free_irq(client->irq, data);
245err_free_mem:
246 input_free_device(input_dev);
247 kfree(data);
248 return ret;
249}
250
251static int __devexit mcs5000_ts_remove(struct i2c_client *client)
252{
253 struct mcs5000_ts_data *data = i2c_get_clientdata(client);
254
255 free_irq(client->irq, data);
256 input_unregister_device(data->input_dev);
257 kfree(data);
258 i2c_set_clientdata(client, NULL);
259
260 return 0;
261}
262
263#ifdef CONFIG_PM
264static int mcs5000_ts_suspend(struct i2c_client *client, pm_message_t mesg)
265{
266 /* Touch sleep mode */
267 i2c_smbus_write_byte_data(client, MCS5000_TS_OP_MODE, OP_MODE_SLEEP);
268
269 return 0;
270}
271
272static int mcs5000_ts_resume(struct i2c_client *client)
273{
274 struct mcs5000_ts_data *data = i2c_get_clientdata(client);
275
276 mcs5000_ts_phys_init(data);
277
278 return 0;
279}
280#else
281#define mcs5000_ts_suspend NULL
282#define mcs5000_ts_resume NULL
283#endif
284
285static const struct i2c_device_id mcs5000_ts_id[] = {
286 { "mcs5000_ts", 0 },
287 { }
288};
289MODULE_DEVICE_TABLE(i2c, mcs5000_ts_id);
290
291static struct i2c_driver mcs5000_ts_driver = {
292 .probe = mcs5000_ts_probe,
293 .remove = __devexit_p(mcs5000_ts_remove),
294 .suspend = mcs5000_ts_suspend,
295 .resume = mcs5000_ts_resume,
296 .driver = {
297 .name = "mcs5000_ts",
298 },
299 .id_table = mcs5000_ts_id,
300};
301
302static int __init mcs5000_ts_init(void)
303{
304 return i2c_add_driver(&mcs5000_ts_driver);
305}
306
307static void __exit mcs5000_ts_exit(void)
308{
309 i2c_del_driver(&mcs5000_ts_driver);
310}
311
312module_init(mcs5000_ts_init);
313module_exit(mcs5000_ts_exit);
314
315/* Module information */
316MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
317MODULE_DESCRIPTION("Touchscreen driver for MELFAS MCS-5000 controller");
318MODULE_LICENSE("GPL");
diff --git a/drivers/leds/leds-clevo-mail.c b/drivers/leds/leds-clevo-mail.c
index 1813c84ea5fc..f2242db54016 100644
--- a/drivers/leds/leds-clevo-mail.c
+++ b/drivers/leds/leds-clevo-mail.c
@@ -93,6 +93,8 @@ static struct dmi_system_id __initdata mail_led_whitelist[] = {
93static void clevo_mail_led_set(struct led_classdev *led_cdev, 93static void clevo_mail_led_set(struct led_classdev *led_cdev,
94 enum led_brightness value) 94 enum led_brightness value)
95{ 95{
96 i8042_lock_chip();
97
96 if (value == LED_OFF) 98 if (value == LED_OFF)
97 i8042_command(NULL, CLEVO_MAIL_LED_OFF); 99 i8042_command(NULL, CLEVO_MAIL_LED_OFF);
98 else if (value <= LED_HALF) 100 else if (value <= LED_HALF)
@@ -100,6 +102,8 @@ static void clevo_mail_led_set(struct led_classdev *led_cdev,
100 else 102 else
101 i8042_command(NULL, CLEVO_MAIL_LED_BLINK_1HZ); 103 i8042_command(NULL, CLEVO_MAIL_LED_BLINK_1HZ);
102 104
105 i8042_unlock_chip();
106
103} 107}
104 108
105static int clevo_mail_led_blink(struct led_classdev *led_cdev, 109static int clevo_mail_led_blink(struct led_classdev *led_cdev,
@@ -108,6 +112,8 @@ static int clevo_mail_led_blink(struct led_classdev *led_cdev,
108{ 112{
109 int status = -EINVAL; 113 int status = -EINVAL;
110 114
115 i8042_lock_chip();
116
111 if (*delay_on == 0 /* ms */ && *delay_off == 0 /* ms */) { 117 if (*delay_on == 0 /* ms */ && *delay_off == 0 /* ms */) {
112 /* Special case: the leds subsystem requested us to 118 /* Special case: the leds subsystem requested us to
113 * chose one user friendly blinking of the LED, and 119 * chose one user friendly blinking of the LED, and
@@ -135,6 +141,8 @@ static int clevo_mail_led_blink(struct led_classdev *led_cdev,
135 *delay_on, *delay_off); 141 *delay_on, *delay_off);
136 } 142 }
137 143
144 i8042_unlock_chip();
145
138 return status; 146 return status;
139} 147}
140 148
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index fb45f5ee8df1..454970d2d701 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -746,7 +746,9 @@ static acpi_status WMID_set_u32(u32 value, u32 cap, struct wmi_interface *iface)
746 return AE_BAD_PARAMETER; 746 return AE_BAD_PARAMETER;
747 if (quirks->mailled == 1) { 747 if (quirks->mailled == 1) {
748 param = value ? 0x92 : 0x93; 748 param = value ? 0x92 : 0x93;
749 i8042_lock_chip();
749 i8042_command(&param, 0x1059); 750 i8042_command(&param, 0x1059);
751 i8042_unlock_chip();
750 return 0; 752 return 0;
751 } 753 }
752 break; 754 break;
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-20 02:47:28 -0500