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authorLinus Torvalds <torvalds@linux-foundation.org>2009-01-12 19:27:24 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-12 19:27:24 -0500
commitb743791639d8142277df1c2814c282e3ad752f06 (patch)
tree27e09f48e6c28b8695c343dbd3d8dedb0a92b3a4 /drivers
parent9219a3b9889dbc7dae68e472f239672ff48860b0 (diff)
parentb29c06ae96acc47e866f29d19075707f91df69c8 (diff)
Merge branch 'for-next' of git://git.o-hand.com/linux-mfd
* 'for-next' of git://git.o-hand.com/linux-mfd: mfd: Fix twl4030-core build mfd: Ensure sm501 GPIO pin mode is GPIO when configured mfd: dm355 evm MMC/SD card detection regulator: PCF50633 pmic driver input: PCF50633 input driver power_supply: PCF50633 battery charger driver rtc: PCF50633 rtc driver mfd: PCF50633 gpio support mfd: PCF50633 adc driver mfd: PCF50633 core driver
Diffstat (limited to 'drivers')
-rw-r--r--drivers/input/misc/Kconfig7
-rw-r--r--drivers/input/misc/Makefile1
-rw-r--r--drivers/input/misc/pcf50633-input.c132
-rw-r--r--drivers/mfd/Kconfig23
-rw-r--r--drivers/mfd/Makefile4
-rw-r--r--drivers/mfd/dm355evm_msp.c10
-rw-r--r--drivers/mfd/pcf50633-adc.c277
-rw-r--r--drivers/mfd/pcf50633-core.c710
-rw-r--r--drivers/mfd/pcf50633-gpio.c118
-rw-r--r--drivers/mfd/sm501.c30
-rw-r--r--drivers/mfd/twl4030-core.c3
-rw-r--r--drivers/power/Kconfig6
-rw-r--r--drivers/power/Makefile1
-rw-r--r--drivers/power/pcf50633-charger.c358
-rw-r--r--drivers/regulator/Kconfig7
-rw-r--r--drivers/regulator/Makefile1
-rw-r--r--drivers/regulator/pcf50633-regulator.c329
-rw-r--r--drivers/rtc/Kconfig7
-rw-r--r--drivers/rtc/Makefile1
-rw-r--r--drivers/rtc/rtc-pcf50633.c344
20 files changed, 2367 insertions, 2 deletions
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 199055db5082..67e5553f699a 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -220,4 +220,11 @@ config HP_SDC_RTC
220 Say Y here if you want to support the built-in real time clock 220 Say Y here if you want to support the built-in real time clock
221 of the HP SDC controller. 221 of the HP SDC controller.
222 222
223config INPUT_PCF50633_PMU
224 tristate "PCF50633 PMU events"
225 depends on MFD_PCF50633
226 help
227 Say Y to include support for delivering PMU events via input
228 layer on NXP PCF50633.
229
223endif 230endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index d7db2aeb8a98..bb62e6efacf3 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -21,3 +21,4 @@ obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
21obj-$(CONFIG_INPUT_UINPUT) += uinput.o 21obj-$(CONFIG_INPUT_UINPUT) += uinput.o
22obj-$(CONFIG_INPUT_APANEL) += apanel.o 22obj-$(CONFIG_INPUT_APANEL) += apanel.o
23obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o 23obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
24obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o
diff --git a/drivers/input/misc/pcf50633-input.c b/drivers/input/misc/pcf50633-input.c
new file mode 100644
index 000000000000..039dcb00ebd9
--- /dev/null
+++ b/drivers/input/misc/pcf50633-input.c
@@ -0,0 +1,132 @@
1/* NXP PCF50633 Input Driver
2 *
3 * (C) 2006-2008 by Openmoko, Inc.
4 * Author: Balaji Rao <balajirrao@openmoko.org>
5 * All rights reserved.
6 *
7 * Broken down from monstrous PCF50633 driver mainly by
8 * Harald Welte, Andy Green and Werner Almesberger
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16
17#include <linux/kernel.h>
18#include <linux/module.h>
19#include <linux/init.h>
20#include <linux/device.h>
21#include <linux/platform_device.h>
22#include <linux/input.h>
23
24#include <linux/mfd/pcf50633/core.h>
25
26#define PCF50633_OOCSTAT_ONKEY 0x01
27#define PCF50633_REG_OOCSTAT 0x12
28#define PCF50633_REG_OOCMODE 0x10
29
30struct pcf50633_input {
31 struct pcf50633 *pcf;
32 struct input_dev *input_dev;
33};
34
35static void
36pcf50633_input_irq(int irq, void *data)
37{
38 struct pcf50633_input *input;
39 int onkey_released;
40
41 input = data;
42
43 /* We report only one event depending on the key press status */
44 onkey_released = pcf50633_reg_read(input->pcf, PCF50633_REG_OOCSTAT)
45 & PCF50633_OOCSTAT_ONKEY;
46
47 if (irq == PCF50633_IRQ_ONKEYF && !onkey_released)
48 input_report_key(input->input_dev, KEY_POWER, 1);
49 else if (irq == PCF50633_IRQ_ONKEYR && onkey_released)
50 input_report_key(input->input_dev, KEY_POWER, 0);
51
52 input_sync(input->input_dev);
53}
54
55static int __devinit pcf50633_input_probe(struct platform_device *pdev)
56{
57 struct pcf50633_input *input;
58 struct pcf50633_subdev_pdata *pdata = pdev->dev.platform_data;
59 struct input_dev *input_dev;
60 int ret;
61
62
63 input = kzalloc(sizeof(*input), GFP_KERNEL);
64 if (!input)
65 return -ENOMEM;
66
67 input_dev = input_allocate_device();
68 if (!input_dev) {
69 kfree(input);
70 return -ENOMEM;
71 }
72
73 platform_set_drvdata(pdev, input);
74 input->pcf = pdata->pcf;
75 input->input_dev = input_dev;
76
77 input_dev->name = "PCF50633 PMU events";
78 input_dev->id.bustype = BUS_I2C;
79 input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_PWR);
80 set_bit(KEY_POWER, input_dev->keybit);
81
82 ret = input_register_device(input_dev);
83 if (ret) {
84 input_free_device(input_dev);
85 kfree(input);
86 return ret;
87 }
88 pcf50633_register_irq(pdata->pcf, PCF50633_IRQ_ONKEYR,
89 pcf50633_input_irq, input);
90 pcf50633_register_irq(pdata->pcf, PCF50633_IRQ_ONKEYF,
91 pcf50633_input_irq, input);
92
93 return 0;
94}
95
96static int __devexit pcf50633_input_remove(struct platform_device *pdev)
97{
98 struct pcf50633_input *input = platform_get_drvdata(pdev);
99
100 pcf50633_free_irq(input->pcf, PCF50633_IRQ_ONKEYR);
101 pcf50633_free_irq(input->pcf, PCF50633_IRQ_ONKEYF);
102
103 input_unregister_device(input->input_dev);
104 kfree(input);
105
106 return 0;
107}
108
109static struct platform_driver pcf50633_input_driver = {
110 .driver = {
111 .name = "pcf50633-input",
112 },
113 .probe = pcf50633_input_probe,
114 .remove = __devexit_p(pcf50633_input_remove),
115};
116
117static int __init pcf50633_input_init(void)
118{
119 return platform_driver_register(&pcf50633_input_driver);
120}
121module_init(pcf50633_input_init);
122
123static void __exit pcf50633_input_exit(void)
124{
125 platform_driver_unregister(&pcf50633_input_driver);
126}
127module_exit(pcf50633_input_exit);
128
129MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
130MODULE_DESCRIPTION("PCF50633 input driver");
131MODULE_LICENSE("GPL");
132MODULE_ALIAS("platform:pcf50633-input");
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 416f9e7286ba..06a2b0f7737c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -217,6 +217,29 @@ config MFD_WM8350_I2C
217 I2C as the control interface. Additional options must be 217 I2C as the control interface. Additional options must be
218 selected to enable support for the functionality of the chip. 218 selected to enable support for the functionality of the chip.
219 219
220config MFD_PCF50633
221 tristate "Support for NXP PCF50633"
222 depends on I2C
223 help
224 Say yes here if you have NXP PCF50633 chip on your board.
225 This core driver provides register access and IRQ handling
226 facilities, and registers devices for the various functions
227 so that function-specific drivers can bind to them.
228
229config PCF50633_ADC
230 tristate "Support for NXP PCF50633 ADC"
231 depends on MFD_PCF50633
232 help
233 Say yes here if you want to include support for ADC in the
234 NXP PCF50633 chip.
235
236config PCF50633_GPIO
237 tristate "Support for NXP PCF50633 GPIO"
238 depends on MFD_PCF50633
239 help
240 Say yes here if you want to include support GPIO for pins on
241 the PCF50633 chip.
242
220endmenu 243endmenu
221 244
222menu "Multimedia Capabilities Port drivers" 245menu "Multimedia Capabilities Port drivers"
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 0c9418b36c26..3afb5192e4da 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -37,3 +37,7 @@ endif
37obj-$(CONFIG_UCB1400_CORE) += ucb1400_core.o 37obj-$(CONFIG_UCB1400_CORE) += ucb1400_core.o
38 38
39obj-$(CONFIG_PMIC_DA903X) += da903x.o 39obj-$(CONFIG_PMIC_DA903X) += da903x.o
40
41obj-$(CONFIG_MFD_PCF50633) += pcf50633-core.o
42obj-$(CONFIG_PCF50633_ADC) += pcf50633-adc.o
43obj-$(CONFIG_PCF50633_GPIO) += pcf50633-gpio.o \ No newline at end of file
diff --git a/drivers/mfd/dm355evm_msp.c b/drivers/mfd/dm355evm_msp.c
index 4214b3f72426..7ac12cb0be4a 100644
--- a/drivers/mfd/dm355evm_msp.c
+++ b/drivers/mfd/dm355evm_msp.c
@@ -107,6 +107,9 @@ static const u8 msp_gpios[] = {
107 MSP_GPIO(0, SWITCH1), MSP_GPIO(1, SWITCH1), 107 MSP_GPIO(0, SWITCH1), MSP_GPIO(1, SWITCH1),
108 MSP_GPIO(2, SWITCH1), MSP_GPIO(3, SWITCH1), 108 MSP_GPIO(2, SWITCH1), MSP_GPIO(3, SWITCH1),
109 MSP_GPIO(4, SWITCH1), 109 MSP_GPIO(4, SWITCH1),
110 /* switches on MMC/SD sockets */
111 MSP_GPIO(1, SDMMC), MSP_GPIO(2, SDMMC), /* mmc0 WP, nCD */
112 MSP_GPIO(3, SDMMC), MSP_GPIO(4, SDMMC), /* mmc1 WP, nCD */
110}; 113};
111 114
112#define MSP_GPIO_REG(offset) (msp_gpios[(offset)] >> 3) 115#define MSP_GPIO_REG(offset) (msp_gpios[(offset)] >> 3)
@@ -304,6 +307,13 @@ static int add_children(struct i2c_client *client)
304 gpio_export(gpio, false); 307 gpio_export(gpio, false);
305 } 308 }
306 309
310 /* MMC/SD inputs -- right after the last config input */
311 if (client->dev.platform_data) {
312 void (*mmcsd_setup)(unsigned) = client->dev.platform_data;
313
314 mmcsd_setup(dm355evm_msp_gpio.base + 8 + 5);
315 }
316
307 /* RTC is a 32 bit counter, no alarm */ 317 /* RTC is a 32 bit counter, no alarm */
308 if (msp_has_rtc()) { 318 if (msp_has_rtc()) {
309 child = add_child(client, "rtc-dm355evm", 319 child = add_child(client, "rtc-dm355evm",
diff --git a/drivers/mfd/pcf50633-adc.c b/drivers/mfd/pcf50633-adc.c
new file mode 100644
index 000000000000..c2d05becfa97
--- /dev/null
+++ b/drivers/mfd/pcf50633-adc.c
@@ -0,0 +1,277 @@
1/* NXP PCF50633 ADC Driver
2 *
3 * (C) 2006-2008 by Openmoko, Inc.
4 * Author: Balaji Rao <balajirrao@openmoko.org>
5 * All rights reserved.
6 *
7 * Broken down from monstrous PCF50633 driver mainly by
8 * Harald Welte, Andy Green and Werner Almesberger
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 * NOTE: This driver does not yet support subtractive ADC mode, which means
16 * you can do only one measurement per read request.
17 */
18
19#include <linux/kernel.h>
20#include <linux/module.h>
21#include <linux/init.h>
22#include <linux/device.h>
23#include <linux/platform_device.h>
24#include <linux/completion.h>
25
26#include <linux/mfd/pcf50633/core.h>
27#include <linux/mfd/pcf50633/adc.h>
28
29struct pcf50633_adc_request {
30 int mux;
31 int avg;
32 int result;
33 void (*callback)(struct pcf50633 *, void *, int);
34 void *callback_param;
35
36 /* Used in case of sync requests */
37 struct completion completion;
38
39};
40
41#define PCF50633_MAX_ADC_FIFO_DEPTH 8
42
43struct pcf50633_adc {
44 struct pcf50633 *pcf;
45
46 /* Private stuff */
47 struct pcf50633_adc_request *queue[PCF50633_MAX_ADC_FIFO_DEPTH];
48 int queue_head;
49 int queue_tail;
50 struct mutex queue_mutex;
51};
52
53static inline struct pcf50633_adc *__to_adc(struct pcf50633 *pcf)
54{
55 return platform_get_drvdata(pcf->adc_pdev);
56}
57
58static void adc_setup(struct pcf50633 *pcf, int channel, int avg)
59{
60 channel &= PCF50633_ADCC1_ADCMUX_MASK;
61
62 /* kill ratiometric, but enable ACCSW biasing */
63 pcf50633_reg_write(pcf, PCF50633_REG_ADCC2, 0x00);
64 pcf50633_reg_write(pcf, PCF50633_REG_ADCC3, 0x01);
65
66 /* start ADC conversion on selected channel */
67 pcf50633_reg_write(pcf, PCF50633_REG_ADCC1, channel | avg |
68 PCF50633_ADCC1_ADCSTART | PCF50633_ADCC1_RES_10BIT);
69}
70
71static void trigger_next_adc_job_if_any(struct pcf50633 *pcf)
72{
73 struct pcf50633_adc *adc = __to_adc(pcf);
74 int head;
75
76 mutex_lock(&adc->queue_mutex);
77
78 head = adc->queue_head;
79
80 if (!adc->queue[head]) {
81 mutex_unlock(&adc->queue_mutex);
82 return;
83 }
84 mutex_unlock(&adc->queue_mutex);
85
86 adc_setup(pcf, adc->queue[head]->mux, adc->queue[head]->avg);
87}
88
89static int
90adc_enqueue_request(struct pcf50633 *pcf, struct pcf50633_adc_request *req)
91{
92 struct pcf50633_adc *adc = __to_adc(pcf);
93 int head, tail;
94
95 mutex_lock(&adc->queue_mutex);
96
97 head = adc->queue_head;
98 tail = adc->queue_tail;
99
100 if (adc->queue[tail]) {
101 mutex_unlock(&adc->queue_mutex);
102 return -EBUSY;
103 }
104
105 adc->queue[tail] = req;
106 adc->queue_tail = (tail + 1) & (PCF50633_MAX_ADC_FIFO_DEPTH - 1);
107
108 mutex_unlock(&adc->queue_mutex);
109
110 trigger_next_adc_job_if_any(pcf);
111
112 return 0;
113}
114
115static void
116pcf50633_adc_sync_read_callback(struct pcf50633 *pcf, void *param, int result)
117{
118 struct pcf50633_adc_request *req = param;
119
120 req->result = result;
121 complete(&req->completion);
122}
123
124int pcf50633_adc_sync_read(struct pcf50633 *pcf, int mux, int avg)
125{
126 struct pcf50633_adc_request *req;
127
128 /* req is freed when the result is ready, in interrupt handler */
129 req = kzalloc(sizeof(*req), GFP_KERNEL);
130 if (!req)
131 return -ENOMEM;
132
133 req->mux = mux;
134 req->avg = avg;
135 req->callback = pcf50633_adc_sync_read_callback;
136 req->callback_param = req;
137
138 init_completion(&req->completion);
139 adc_enqueue_request(pcf, req);
140 wait_for_completion(&req->completion);
141
142 return req->result;
143}
144EXPORT_SYMBOL_GPL(pcf50633_adc_sync_read);
145
146int pcf50633_adc_async_read(struct pcf50633 *pcf, int mux, int avg,
147 void (*callback)(struct pcf50633 *, void *, int),
148 void *callback_param)
149{
150 struct pcf50633_adc_request *req;
151
152 /* req is freed when the result is ready, in interrupt handler */
153 req = kmalloc(sizeof(*req), GFP_KERNEL);
154 if (!req)
155 return -ENOMEM;
156
157 req->mux = mux;
158 req->avg = avg;
159 req->callback = callback;
160 req->callback_param = callback_param;
161
162 adc_enqueue_request(pcf, req);
163
164 return 0;
165}
166EXPORT_SYMBOL_GPL(pcf50633_adc_async_read);
167
168static int adc_result(struct pcf50633 *pcf)
169{
170 u8 adcs1, adcs3;
171 u16 result;
172
173 adcs1 = pcf50633_reg_read(pcf, PCF50633_REG_ADCS1);
174 adcs3 = pcf50633_reg_read(pcf, PCF50633_REG_ADCS3);
175 result = (adcs1 << 2) | (adcs3 & PCF50633_ADCS3_ADCDAT1L_MASK);
176
177 dev_dbg(pcf->dev, "adc result = %d\n", result);
178
179 return result;
180}
181
182static void pcf50633_adc_irq(int irq, void *data)
183{
184 struct pcf50633_adc *adc = data;
185 struct pcf50633 *pcf = adc->pcf;
186 struct pcf50633_adc_request *req;
187 int head;
188
189 mutex_lock(&adc->queue_mutex);
190 head = adc->queue_head;
191
192 req = adc->queue[head];
193 if (WARN_ON(!req)) {
194 dev_err(pcf->dev, "pcf50633-adc irq: ADC queue empty!\n");
195 mutex_unlock(&adc->queue_mutex);
196 return;
197 }
198 adc->queue[head] = NULL;
199 adc->queue_head = (head + 1) &
200 (PCF50633_MAX_ADC_FIFO_DEPTH - 1);
201
202 mutex_unlock(&adc->queue_mutex);
203
204 req->callback(pcf, req->callback_param, adc_result(pcf));
205 kfree(req);
206
207 trigger_next_adc_job_if_any(pcf);
208}
209
210static int __devinit pcf50633_adc_probe(struct platform_device *pdev)
211{
212 struct pcf50633_subdev_pdata *pdata = pdev->dev.platform_data;
213 struct pcf50633_adc *adc;
214
215 adc = kzalloc(sizeof(*adc), GFP_KERNEL);
216 if (!adc)
217 return -ENOMEM;
218
219 adc->pcf = pdata->pcf;
220 platform_set_drvdata(pdev, adc);
221
222 pcf50633_register_irq(pdata->pcf, PCF50633_IRQ_ADCRDY,
223 pcf50633_adc_irq, adc);
224
225 mutex_init(&adc->queue_mutex);
226
227 return 0;
228}
229
230static int __devexit pcf50633_adc_remove(struct platform_device *pdev)
231{
232 struct pcf50633_adc *adc = platform_get_drvdata(pdev);
233 int i, head;
234
235 pcf50633_free_irq(adc->pcf, PCF50633_IRQ_ADCRDY);
236
237 mutex_lock(&adc->queue_mutex);
238 head = adc->queue_head;
239
240 if (WARN_ON(adc->queue[head]))
241 dev_err(adc->pcf->dev,
242 "adc driver removed with request pending\n");
243
244 for (i = 0; i < PCF50633_MAX_ADC_FIFO_DEPTH; i++)
245 kfree(adc->queue[i]);
246
247 mutex_unlock(&adc->queue_mutex);
248 kfree(adc);
249
250 return 0;
251}
252
253static struct platform_driver pcf50633_adc_driver = {
254 .driver = {
255 .name = "pcf50633-adc",
256 },
257 .probe = pcf50633_adc_probe,
258 .remove = __devexit_p(pcf50633_adc_remove),
259};
260
261static int __init pcf50633_adc_init(void)
262{
263 return platform_driver_register(&pcf50633_adc_driver);
264}
265module_init(pcf50633_adc_init);
266
267static void __exit pcf50633_adc_exit(void)
268{
269 platform_driver_unregister(&pcf50633_adc_driver);
270}
271module_exit(pcf50633_adc_exit);
272
273MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
274MODULE_DESCRIPTION("PCF50633 adc driver");
275MODULE_LICENSE("GPL");
276MODULE_ALIAS("platform:pcf50633-adc");
277
diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
new file mode 100644
index 000000000000..24508e28e3fb
--- /dev/null
+++ b/drivers/mfd/pcf50633-core.c
@@ -0,0 +1,710 @@
1/* NXP PCF50633 Power Management Unit (PMU) driver
2 *
3 * (C) 2006-2008 by Openmoko, Inc.
4 * Author: Harald Welte <laforge@openmoko.org>
5 * Balaji Rao <balajirrao@openmoko.org>
6 * All rights reserved.
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 */
14
15#include <linux/kernel.h>
16#include <linux/device.h>
17#include <linux/sysfs.h>
18#include <linux/device.h>
19#include <linux/module.h>
20#include <linux/types.h>
21#include <linux/interrupt.h>
22#include <linux/workqueue.h>
23#include <linux/platform_device.h>
24#include <linux/i2c.h>
25#include <linux/irq.h>
26
27#include <linux/mfd/pcf50633/core.h>
28
29/* Two MBCS registers used during cold start */
30#define PCF50633_REG_MBCS1 0x4b
31#define PCF50633_REG_MBCS2 0x4c
32#define PCF50633_MBCS1_USBPRES 0x01
33#define PCF50633_MBCS1_ADAPTPRES 0x01
34
35static int __pcf50633_read(struct pcf50633 *pcf, u8 reg, int num, u8 *data)
36{
37 int ret;
38
39 ret = i2c_smbus_read_i2c_block_data(pcf->i2c_client, reg,
40 num, data);
41 if (ret < 0)
42 dev_err(pcf->dev, "Error reading %d regs at %d\n", num, reg);
43
44 return ret;
45}
46
47static int __pcf50633_write(struct pcf50633 *pcf, u8 reg, int num, u8 *data)
48{
49 int ret;
50
51 ret = i2c_smbus_write_i2c_block_data(pcf->i2c_client, reg,
52 num, data);
53 if (ret < 0)
54 dev_err(pcf->dev, "Error writing %d regs at %d\n", num, reg);
55
56 return ret;
57
58}
59
60/* Read a block of upto 32 regs */
61int pcf50633_read_block(struct pcf50633 *pcf, u8 reg,
62 int nr_regs, u8 *data)
63{
64 int ret;
65
66 mutex_lock(&pcf->lock);
67 ret = __pcf50633_read(pcf, reg, nr_regs, data);
68 mutex_unlock(&pcf->lock);
69
70 return ret;
71}
72EXPORT_SYMBOL_GPL(pcf50633_read_block);
73
74/* Write a block of upto 32 regs */
75int pcf50633_write_block(struct pcf50633 *pcf , u8 reg,
76 int nr_regs, u8 *data)
77{
78 int ret;
79
80 mutex_lock(&pcf->lock);
81 ret = __pcf50633_write(pcf, reg, nr_regs, data);
82 mutex_unlock(&pcf->lock);
83
84 return ret;
85}
86EXPORT_SYMBOL_GPL(pcf50633_write_block);
87
88u8 pcf50633_reg_read(struct pcf50633 *pcf, u8 reg)
89{
90 u8 val;
91
92 mutex_lock(&pcf->lock);
93 __pcf50633_read(pcf, reg, 1, &val);
94 mutex_unlock(&pcf->lock);
95
96 return val;
97}
98EXPORT_SYMBOL_GPL(pcf50633_reg_read);
99
100int pcf50633_reg_write(struct pcf50633 *pcf, u8 reg, u8 val)
101{
102 int ret;
103
104 mutex_lock(&pcf->lock);
105 ret = __pcf50633_write(pcf, reg, 1, &val);
106 mutex_unlock(&pcf->lock);
107
108 return ret;
109}
110EXPORT_SYMBOL_GPL(pcf50633_reg_write);
111
112int pcf50633_reg_set_bit_mask(struct pcf50633 *pcf, u8 reg, u8 mask, u8 val)
113{
114 int ret;
115 u8 tmp;
116
117 val &= mask;
118
119 mutex_lock(&pcf->lock);
120 ret = __pcf50633_read(pcf, reg, 1, &tmp);
121 if (ret < 0)
122 goto out;
123
124 tmp &= ~mask;
125 tmp |= val;
126 ret = __pcf50633_write(pcf, reg, 1, &tmp);
127
128out:
129 mutex_unlock(&pcf->lock);
130
131 return ret;
132}
133EXPORT_SYMBOL_GPL(pcf50633_reg_set_bit_mask);
134
135int pcf50633_reg_clear_bits(struct pcf50633 *pcf, u8 reg, u8 val)
136{
137 int ret;
138 u8 tmp;
139
140 mutex_lock(&pcf->lock);
141 ret = __pcf50633_read(pcf, reg, 1, &tmp);
142 if (ret < 0)
143 goto out;
144
145 tmp &= ~val;
146 ret = __pcf50633_write(pcf, reg, 1, &tmp);
147
148out:
149 mutex_unlock(&pcf->lock);
150
151 return ret;
152}
153EXPORT_SYMBOL_GPL(pcf50633_reg_clear_bits);
154
155/* sysfs attributes */
156static ssize_t show_dump_regs(struct device *dev, struct device_attribute *attr,
157 char *buf)
158{
159 struct pcf50633 *pcf = dev_get_drvdata(dev);
160 u8 dump[16];
161 int n, n1, idx = 0;
162 char *buf1 = buf;
163 static u8 address_no_read[] = { /* must be ascending */
164 PCF50633_REG_INT1,
165 PCF50633_REG_INT2,
166 PCF50633_REG_INT3,
167 PCF50633_REG_INT4,
168 PCF50633_REG_INT5,
169 0 /* terminator */
170 };
171
172 for (n = 0; n < 256; n += sizeof(dump)) {
173 for (n1 = 0; n1 < sizeof(dump); n1++)
174 if (n == address_no_read[idx]) {
175 idx++;
176 dump[n1] = 0x00;
177 } else
178 dump[n1] = pcf50633_reg_read(pcf, n + n1);
179
180 hex_dump_to_buffer(dump, sizeof(dump), 16, 1, buf1, 128, 0);
181 buf1 += strlen(buf1);
182 *buf1++ = '\n';
183 *buf1 = '\0';
184 }
185
186 return buf1 - buf;
187}
188static DEVICE_ATTR(dump_regs, 0400, show_dump_regs, NULL);
189
190static ssize_t show_resume_reason(struct device *dev,
191 struct device_attribute *attr, char *buf)
192{
193 struct pcf50633 *pcf = dev_get_drvdata(dev);
194 int n;
195
196 n = sprintf(buf, "%02x%02x%02x%02x%02x\n",
197 pcf->resume_reason[0],
198 pcf->resume_reason[1],
199 pcf->resume_reason[2],
200 pcf->resume_reason[3],
201 pcf->resume_reason[4]);
202
203 return n;
204}
205static DEVICE_ATTR(resume_reason, 0400, show_resume_reason, NULL);
206
207static struct attribute *pcf_sysfs_entries[] = {
208 &dev_attr_dump_regs.attr,
209 &dev_attr_resume_reason.attr,
210 NULL,
211};
212
213static struct attribute_group pcf_attr_group = {
214 .name = NULL, /* put in device directory */
215 .attrs = pcf_sysfs_entries,
216};
217
218int pcf50633_register_irq(struct pcf50633 *pcf, int irq,
219 void (*handler) (int, void *), void *data)
220{
221 if (irq < 0 || irq > PCF50633_NUM_IRQ || !handler)
222 return -EINVAL;
223
224 if (WARN_ON(pcf->irq_handler[irq].handler))
225 return -EBUSY;
226
227 mutex_lock(&pcf->lock);
228 pcf->irq_handler[irq].handler = handler;
229 pcf->irq_handler[irq].data = data;
230 mutex_unlock(&pcf->lock);
231
232 return 0;
233}
234EXPORT_SYMBOL_GPL(pcf50633_register_irq);
235
236int pcf50633_free_irq(struct pcf50633 *pcf, int irq)
237{
238 if (irq < 0 || irq > PCF50633_NUM_IRQ)
239 return -EINVAL;
240
241 mutex_lock(&pcf->lock);
242 pcf->irq_handler[irq].handler = NULL;
243 mutex_unlock(&pcf->lock);
244
245 return 0;
246}
247EXPORT_SYMBOL_GPL(pcf50633_free_irq);
248
249static int __pcf50633_irq_mask_set(struct pcf50633 *pcf, int irq, u8 mask)
250{
251 u8 reg, bits, tmp;
252 int ret = 0, idx;
253
254 idx = irq >> 3;
255 reg = PCF50633_REG_INT1M + idx;
256 bits = 1 << (irq & 0x07);
257
258 mutex_lock(&pcf->lock);
259
260 if (mask) {
261 ret = __pcf50633_read(pcf, reg, 1, &tmp);
262 if (ret < 0)
263 goto out;
264
265 tmp |= bits;
266
267 ret = __pcf50633_write(pcf, reg, 1, &tmp);
268 if (ret < 0)
269 goto out;
270
271 pcf->mask_regs[idx] &= ~bits;
272 pcf->mask_regs[idx] |= bits;
273 } else {
274 ret = __pcf50633_read(pcf, reg, 1, &tmp);
275 if (ret < 0)
276 goto out;
277
278 tmp &= ~bits;
279
280 ret = __pcf50633_write(pcf, reg, 1, &tmp);
281 if (ret < 0)
282 goto out;
283
284 pcf->mask_regs[idx] &= ~bits;
285 }
286out:
287 mutex_unlock(&pcf->lock);
288
289 return ret;
290}
291
292int pcf50633_irq_mask(struct pcf50633 *pcf, int irq)
293{
294 dev_info(pcf->dev, "Masking IRQ %d\n", irq);
295
296 return __pcf50633_irq_mask_set(pcf, irq, 1);
297}
298EXPORT_SYMBOL_GPL(pcf50633_irq_mask);
299
300int pcf50633_irq_unmask(struct pcf50633 *pcf, int irq)
301{
302 dev_info(pcf->dev, "Unmasking IRQ %d\n", irq);
303
304 return __pcf50633_irq_mask_set(pcf, irq, 0);
305}
306EXPORT_SYMBOL_GPL(pcf50633_irq_unmask);
307
308int pcf50633_irq_mask_get(struct pcf50633 *pcf, int irq)
309{
310 u8 reg, bits;
311
312 reg = irq >> 3;
313 bits = 1 << (irq & 0x07);
314
315 return pcf->mask_regs[reg] & bits;
316}
317EXPORT_SYMBOL_GPL(pcf50633_irq_mask_get);
318
319static void pcf50633_irq_call_handler(struct pcf50633 *pcf, int irq)
320{
321 if (pcf->irq_handler[irq].handler)
322 pcf->irq_handler[irq].handler(irq, pcf->irq_handler[irq].data);
323}
324
325/* Maximum amount of time ONKEY is held before emergency action is taken */
326#define PCF50633_ONKEY1S_TIMEOUT 8
327
328static void pcf50633_irq_worker(struct work_struct *work)
329{
330 struct pcf50633 *pcf;
331 int ret, i, j;
332 u8 pcf_int[5], chgstat;
333
334 pcf = container_of(work, struct pcf50633, irq_work);
335
336 /* Read the 5 INT regs in one transaction */
337 ret = pcf50633_read_block(pcf, PCF50633_REG_INT1,
338 ARRAY_SIZE(pcf_int), pcf_int);
339 if (ret != ARRAY_SIZE(pcf_int)) {
340 dev_err(pcf->dev, "Error reading INT registers\n");
341
342 /*
343 * If this doesn't ACK the interrupt to the chip, we'll be
344 * called once again as we're level triggered.
345 */
346 goto out;
347 }
348
349 /* We immediately read the usb and adapter status. We thus make sure
350 * only of USBINS/USBREM IRQ handlers are called */
351 if (pcf_int[0] & (PCF50633_INT1_USBINS | PCF50633_INT1_USBREM)) {
352 chgstat = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2);
353 if (chgstat & (0x3 << 4))
354 pcf_int[0] &= ~(1 << PCF50633_INT1_USBREM);
355 else
356 pcf_int[0] &= ~(1 << PCF50633_INT1_USBINS);
357 }
358
359 /* Make sure only one of ADPINS or ADPREM is set */
360 if (pcf_int[0] & (PCF50633_INT1_ADPINS | PCF50633_INT1_ADPREM)) {
361 chgstat = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2);
362 if (chgstat & (0x3 << 4))
363 pcf_int[0] &= ~(1 << PCF50633_INT1_ADPREM);
364 else
365 pcf_int[0] &= ~(1 << PCF50633_INT1_ADPINS);
366 }
367
368 dev_dbg(pcf->dev, "INT1=0x%02x INT2=0x%02x INT3=0x%02x "
369 "INT4=0x%02x INT5=0x%02x\n", pcf_int[0],
370 pcf_int[1], pcf_int[2], pcf_int[3], pcf_int[4]);
371
372 /* Some revisions of the chip don't have a 8s standby mode on
373 * ONKEY1S press. We try to manually do it in such cases. */
374 if ((pcf_int[0] & PCF50633_INT1_SECOND) && pcf->onkey1s_held) {
375 dev_info(pcf->dev, "ONKEY1S held for %d secs\n",
376 pcf->onkey1s_held);
377 if (pcf->onkey1s_held++ == PCF50633_ONKEY1S_TIMEOUT)
378 if (pcf->pdata->force_shutdown)
379 pcf->pdata->force_shutdown(pcf);
380 }
381
382 if (pcf_int[2] & PCF50633_INT3_ONKEY1S) {
383 dev_info(pcf->dev, "ONKEY1S held\n");
384 pcf->onkey1s_held = 1 ;
385
386 /* Unmask IRQ_SECOND */
387 pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT1M,
388 PCF50633_INT1_SECOND);
389
390 /* Unmask IRQ_ONKEYR */
391 pcf50633_reg_clear_bits(pcf, PCF50633_REG_INT2M,
392 PCF50633_INT2_ONKEYR);
393 }
394
395 if ((pcf_int[1] & PCF50633_INT2_ONKEYR) && pcf->onkey1s_held) {
396 pcf->onkey1s_held = 0;
397
398 /* Mask SECOND and ONKEYR interrupts */
399 if (pcf->mask_regs[0] & PCF50633_INT1_SECOND)
400 pcf50633_reg_set_bit_mask(pcf,
401 PCF50633_REG_INT1M,
402 PCF50633_INT1_SECOND,
403 PCF50633_INT1_SECOND);
404
405 if (pcf->mask_regs[1] & PCF50633_INT2_ONKEYR)
406 pcf50633_reg_set_bit_mask(pcf,
407 PCF50633_REG_INT2M,
408 PCF50633_INT2_ONKEYR,
409 PCF50633_INT2_ONKEYR);
410 }
411
412 /* Have we just resumed ? */
413 if (pcf->is_suspended) {
414 pcf->is_suspended = 0;
415
416 /* Set the resume reason filtering out non resumers */
417 for (i = 0; i < ARRAY_SIZE(pcf_int); i++)
418 pcf->resume_reason[i] = pcf_int[i] &
419 pcf->pdata->resumers[i];
420
421 /* Make sure we don't pass on any ONKEY events to
422 * userspace now */
423 pcf_int[1] &= ~(PCF50633_INT2_ONKEYR | PCF50633_INT2_ONKEYF);
424 }
425
426 for (i = 0; i < ARRAY_SIZE(pcf_int); i++) {
427 /* Unset masked interrupts */
428 pcf_int[i] &= ~pcf->mask_regs[i];
429
430 for (j = 0; j < 8 ; j++)
431 if (pcf_int[i] & (1 << j))
432 pcf50633_irq_call_handler(pcf, (i * 8) + j);
433 }
434
435out:
436 put_device(pcf->dev);
437 enable_irq(pcf->irq);
438}
439
440static irqreturn_t pcf50633_irq(int irq, void *data)
441{
442 struct pcf50633 *pcf = data;
443
444 dev_dbg(pcf->dev, "pcf50633_irq\n");
445
446 get_device(pcf->dev);
447 disable_irq(pcf->irq);
448 schedule_work(&pcf->irq_work);
449
450 return IRQ_HANDLED;
451}
452
453static void
454pcf50633_client_dev_register(struct pcf50633 *pcf, const char *name,
455 struct platform_device **pdev)
456{
457 struct pcf50633_subdev_pdata *subdev_pdata;
458 int ret;
459
460 *pdev = platform_device_alloc(name, -1);
461 if (!*pdev) {
462 dev_err(pcf->dev, "Falied to allocate %s\n", name);
463 return;
464 }
465
466 subdev_pdata = kmalloc(sizeof(*subdev_pdata), GFP_KERNEL);
467 if (!subdev_pdata) {
468 dev_err(pcf->dev, "Error allocating subdev pdata\n");
469 platform_device_put(*pdev);
470 }
471
472 subdev_pdata->pcf = pcf;
473 platform_device_add_data(*pdev, subdev_pdata, sizeof(*subdev_pdata));
474
475 (*pdev)->dev.parent = pcf->dev;
476
477 ret = platform_device_add(*pdev);
478 if (ret) {
479 dev_err(pcf->dev, "Failed to register %s: %d\n", name, ret);
480 platform_device_put(*pdev);
481 *pdev = NULL;
482 }
483}
484
485#ifdef CONFIG_PM
486static int pcf50633_suspend(struct device *dev, pm_message_t state)
487{
488 struct pcf50633 *pcf;
489 int ret = 0, i;
490 u8 res[5];
491
492 pcf = dev_get_drvdata(dev);
493
494 /* Make sure our interrupt handlers are not called
495 * henceforth */
496 disable_irq(pcf->irq);
497
498 /* Make sure that any running IRQ worker has quit */
499 cancel_work_sync(&pcf->irq_work);
500
501 /* Save the masks */
502 ret = pcf50633_read_block(pcf, PCF50633_REG_INT1M,
503 ARRAY_SIZE(pcf->suspend_irq_masks),
504 pcf->suspend_irq_masks);
505 if (ret < 0) {
506 dev_err(pcf->dev, "error saving irq masks\n");
507 goto out;
508 }
509
510 /* Write wakeup irq masks */
511 for (i = 0; i < ARRAY_SIZE(res); i++)
512 res[i] = ~pcf->pdata->resumers[i];
513
514 ret = pcf50633_write_block(pcf, PCF50633_REG_INT1M,
515 ARRAY_SIZE(res), &res[0]);
516 if (ret < 0) {
517 dev_err(pcf->dev, "error writing wakeup irq masks\n");
518 goto out;
519 }
520
521 pcf->is_suspended = 1;
522
523out:
524 return ret;
525}
526
527static int pcf50633_resume(struct device *dev)
528{
529 struct pcf50633 *pcf;
530 int ret;
531
532 pcf = dev_get_drvdata(dev);
533
534 /* Write the saved mask registers */
535 ret = pcf50633_write_block(pcf, PCF50633_REG_INT1M,
536 ARRAY_SIZE(pcf->suspend_irq_masks),
537 pcf->suspend_irq_masks);
538 if (ret < 0)
539 dev_err(pcf->dev, "Error restoring saved suspend masks\n");
540
541 /* Restore regulators' state */
542
543
544 get_device(pcf->dev);
545
546 /*
547 * Clear any pending interrupts and set resume reason if any.
548 * This will leave with enable_irq()
549 */
550 pcf50633_irq_worker(&pcf->irq_work);
551
552 return 0;
553}
554#else
555#define pcf50633_suspend NULL
556#define pcf50633_resume NULL
557#endif
558
559static int __devinit pcf50633_probe(struct i2c_client *client,
560 const struct i2c_device_id *ids)
561{
562 struct pcf50633 *pcf;
563 struct pcf50633_platform_data *pdata = client->dev.platform_data;
564 int i, ret = 0;
565 int version, variant;
566
567 pcf = kzalloc(sizeof(*pcf), GFP_KERNEL);
568 if (!pcf)
569 return -ENOMEM;
570
571 pcf->pdata = pdata;
572
573 mutex_init(&pcf->lock);
574
575 i2c_set_clientdata(client, pcf);
576 pcf->dev = &client->dev;
577 pcf->i2c_client = client;
578 pcf->irq = client->irq;
579
580 INIT_WORK(&pcf->irq_work, pcf50633_irq_worker);
581
582 version = pcf50633_reg_read(pcf, 0);
583 variant = pcf50633_reg_read(pcf, 1);
584 if (version < 0 || variant < 0) {
585 dev_err(pcf->dev, "Unable to probe pcf50633\n");
586 ret = -ENODEV;
587 goto err;
588 }
589
590 dev_info(pcf->dev, "Probed device version %d variant %d\n",
591 version, variant);
592
593 /* Enable all interrupts except RTC SECOND */
594 pcf->mask_regs[0] = 0x80;
595 pcf50633_reg_write(pcf, PCF50633_REG_INT1M, pcf->mask_regs[0]);
596 pcf50633_reg_write(pcf, PCF50633_REG_INT2M, 0x00);
597 pcf50633_reg_write(pcf, PCF50633_REG_INT3M, 0x00);
598 pcf50633_reg_write(pcf, PCF50633_REG_INT4M, 0x00);
599 pcf50633_reg_write(pcf, PCF50633_REG_INT5M, 0x00);
600
601 /* Create sub devices */
602 pcf50633_client_dev_register(pcf, "pcf50633-input",
603 &pcf->input_pdev);
604 pcf50633_client_dev_register(pcf, "pcf50633-rtc",
605 &pcf->rtc_pdev);
606 pcf50633_client_dev_register(pcf, "pcf50633-mbc",
607 &pcf->mbc_pdev);
608 pcf50633_client_dev_register(pcf, "pcf50633-adc",
609 &pcf->adc_pdev);
610
611 for (i = 0; i < PCF50633_NUM_REGULATORS; i++) {
612 struct platform_device *pdev;
613
614 pdev = platform_device_alloc("pcf50633-regltr", i);
615 if (!pdev) {
616 dev_err(pcf->dev, "Cannot create regulator\n");
617 continue;
618 }
619
620 pdev->dev.parent = pcf->dev;
621 pdev->dev.platform_data = &pdata->reg_init_data[i];
622 pdev->dev.driver_data = pcf;
623 pcf->regulator_pdev[i] = pdev;
624
625 platform_device_add(pdev);
626 }
627
628 if (client->irq) {
629 set_irq_handler(client->irq, handle_level_irq);
630 ret = request_irq(client->irq, pcf50633_irq,
631 IRQF_TRIGGER_LOW, "pcf50633", pcf);
632
633 if (ret) {
634 dev_err(pcf->dev, "Failed to request IRQ %d\n", ret);
635 goto err;
636 }
637 } else {
638 dev_err(pcf->dev, "No IRQ configured\n");
639 goto err;
640 }
641
642 if (enable_irq_wake(client->irq) < 0)
643 dev_err(pcf->dev, "IRQ %u cannot be enabled as wake-up source"
644 "in this hardware revision", client->irq);
645
646 ret = sysfs_create_group(&client->dev.kobj, &pcf_attr_group);
647 if (ret)
648 dev_err(pcf->dev, "error creating sysfs entries\n");
649
650 if (pdata->probe_done)
651 pdata->probe_done(pcf);
652
653 return 0;
654
655err:
656 kfree(pcf);
657 return ret;
658}
659
660static int __devexit pcf50633_remove(struct i2c_client *client)
661{
662 struct pcf50633 *pcf = i2c_get_clientdata(client);
663 int i;
664
665 free_irq(pcf->irq, pcf);
666
667 platform_device_unregister(pcf->input_pdev);
668 platform_device_unregister(pcf->rtc_pdev);
669 platform_device_unregister(pcf->mbc_pdev);
670 platform_device_unregister(pcf->adc_pdev);
671
672 for (i = 0; i < PCF50633_NUM_REGULATORS; i++)
673 platform_device_unregister(pcf->regulator_pdev[i]);
674
675 kfree(pcf);
676
677 return 0;
678}
679
680static struct i2c_device_id pcf50633_id_table[] = {
681 {"pcf50633", 0x73},
682};
683
684static struct i2c_driver pcf50633_driver = {
685 .driver = {
686 .name = "pcf50633",
687 .suspend = pcf50633_suspend,
688 .resume = pcf50633_resume,
689 },
690 .id_table = pcf50633_id_table,
691 .probe = pcf50633_probe,
692 .remove = __devexit_p(pcf50633_remove),
693};
694
695static int __init pcf50633_init(void)
696{
697 return i2c_add_driver(&pcf50633_driver);
698}
699
700static void __exit pcf50633_exit(void)
701{
702 i2c_del_driver(&pcf50633_driver);
703}
704
705MODULE_DESCRIPTION("I2C chip driver for NXP PCF50633 PMU");
706MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
707MODULE_LICENSE("GPL");
708
709module_init(pcf50633_init);
710module_exit(pcf50633_exit);
diff --git a/drivers/mfd/pcf50633-gpio.c b/drivers/mfd/pcf50633-gpio.c
new file mode 100644
index 000000000000..2fa2eca5c9cc
--- /dev/null
+++ b/drivers/mfd/pcf50633-gpio.c
@@ -0,0 +1,118 @@
1/* NXP PCF50633 GPIO Driver
2 *
3 * (C) 2006-2008 by Openmoko, Inc.
4 * Author: Balaji Rao <balajirrao@openmoko.org>
5 * All rights reserved.
6 *
7 * Broken down from monstrous PCF50633 driver mainly by
8 * Harald Welte, Andy Green and Werner Almesberger
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16
17#include <linux/kernel.h>
18
19#include <linux/mfd/pcf50633/core.h>
20#include <linux/mfd/pcf50633/gpio.h>
21
22enum pcf50633_regulator_id {
23 PCF50633_REGULATOR_AUTO,
24 PCF50633_REGULATOR_DOWN1,
25 PCF50633_REGULATOR_DOWN2,
26 PCF50633_REGULATOR_LDO1,
27 PCF50633_REGULATOR_LDO2,
28 PCF50633_REGULATOR_LDO3,
29 PCF50633_REGULATOR_LDO4,
30 PCF50633_REGULATOR_LDO5,
31 PCF50633_REGULATOR_LDO6,
32 PCF50633_REGULATOR_HCLDO,
33 PCF50633_REGULATOR_MEMLDO,
34};
35
36#define PCF50633_REG_AUTOOUT 0x1a
37#define PCF50633_REG_DOWN1OUT 0x1e
38#define PCF50633_REG_DOWN2OUT 0x22
39#define PCF50633_REG_MEMLDOOUT 0x26
40#define PCF50633_REG_LDO1OUT 0x2d
41#define PCF50633_REG_LDO2OUT 0x2f
42#define PCF50633_REG_LDO3OUT 0x31
43#define PCF50633_REG_LDO4OUT 0x33
44#define PCF50633_REG_LDO5OUT 0x35
45#define PCF50633_REG_LDO6OUT 0x37
46#define PCF50633_REG_HCLDOOUT 0x39
47
48static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
49 [PCF50633_REGULATOR_AUTO] = PCF50633_REG_AUTOOUT,
50 [PCF50633_REGULATOR_DOWN1] = PCF50633_REG_DOWN1OUT,
51 [PCF50633_REGULATOR_DOWN2] = PCF50633_REG_DOWN2OUT,
52 [PCF50633_REGULATOR_MEMLDO] = PCF50633_REG_MEMLDOOUT,
53 [PCF50633_REGULATOR_LDO1] = PCF50633_REG_LDO1OUT,
54 [PCF50633_REGULATOR_LDO2] = PCF50633_REG_LDO2OUT,
55 [PCF50633_REGULATOR_LDO3] = PCF50633_REG_LDO3OUT,
56 [PCF50633_REGULATOR_LDO4] = PCF50633_REG_LDO4OUT,
57 [PCF50633_REGULATOR_LDO5] = PCF50633_REG_LDO5OUT,
58 [PCF50633_REGULATOR_LDO6] = PCF50633_REG_LDO6OUT,
59 [PCF50633_REGULATOR_HCLDO] = PCF50633_REG_HCLDOOUT,
60};
61
62int pcf50633_gpio_set(struct pcf50633 *pcf, int gpio, u8 val)
63{
64 u8 reg;
65
66 reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
67
68 return pcf50633_reg_set_bit_mask(pcf, reg, 0x07, val);
69}
70EXPORT_SYMBOL_GPL(pcf50633_gpio_set);
71
72u8 pcf50633_gpio_get(struct pcf50633 *pcf, int gpio)
73{
74 u8 reg, val;
75
76 reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
77 val = pcf50633_reg_read(pcf, reg) & 0x07;
78
79 return val;
80}
81EXPORT_SYMBOL_GPL(pcf50633_gpio_get);
82
83int pcf50633_gpio_invert_set(struct pcf50633 *pcf, int gpio, int invert)
84{
85 u8 val, reg;
86
87 reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
88 val = !!invert << 3;
89
90 return pcf50633_reg_set_bit_mask(pcf, reg, 1 << 3, val);
91}
92EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_set);
93
94int pcf50633_gpio_invert_get(struct pcf50633 *pcf, int gpio)
95{
96 u8 reg, val;
97
98 reg = gpio - PCF50633_GPIO1 + PCF50633_REG_GPIO1CFG;
99 val = pcf50633_reg_read(pcf, reg);
100
101 return val & (1 << 3);
102}
103EXPORT_SYMBOL_GPL(pcf50633_gpio_invert_get);
104
105int pcf50633_gpio_power_supply_set(struct pcf50633 *pcf,
106 int gpio, int regulator, int on)
107{
108 u8 reg, val, mask;
109
110 /* the *ENA register is always one after the *OUT register */
111 reg = pcf50633_regulator_registers[regulator] + 1;
112
113 val = !!on << (gpio - PCF50633_GPIO1);
114 mask = 1 << (gpio - PCF50633_GPIO1);
115
116 return pcf50633_reg_set_bit_mask(pcf, reg, mask, val);
117}
118EXPORT_SYMBOL_GPL(pcf50633_gpio_power_supply_set);
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 170f9d47c2f9..0e5761f12634 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -41,6 +41,7 @@ struct sm501_gpio_chip {
41 struct gpio_chip gpio; 41 struct gpio_chip gpio;
42 struct sm501_gpio *ourgpio; /* to get back to parent. */ 42 struct sm501_gpio *ourgpio; /* to get back to parent. */
43 void __iomem *regbase; 43 void __iomem *regbase;
44 void __iomem *control; /* address of control reg. */
44}; 45};
45 46
46struct sm501_gpio { 47struct sm501_gpio {
@@ -908,6 +909,25 @@ static int sm501_gpio_get(struct gpio_chip *chip, unsigned offset)
908 return result & 1UL; 909 return result & 1UL;
909} 910}
910 911
912static void sm501_gpio_ensure_gpio(struct sm501_gpio_chip *smchip,
913 unsigned long bit)
914{
915 unsigned long ctrl;
916
917 /* check and modify if this pin is not set as gpio. */
918
919 if (readl(smchip->control) & bit) {
920 dev_info(sm501_gpio_to_dev(smchip->ourgpio)->dev,
921 "changing mode of gpio, bit %08lx\n", bit);
922
923 ctrl = readl(smchip->control);
924 ctrl &= ~bit;
925 writel(ctrl, smchip->control);
926
927 sm501_sync_regs(sm501_gpio_to_dev(smchip->ourgpio));
928 }
929}
930
911static void sm501_gpio_set(struct gpio_chip *chip, unsigned offset, int value) 931static void sm501_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
912 932
913{ 933{
@@ -929,6 +949,8 @@ static void sm501_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
929 writel(val, regs); 949 writel(val, regs);
930 950
931 sm501_sync_regs(sm501_gpio_to_dev(smgpio)); 951 sm501_sync_regs(sm501_gpio_to_dev(smgpio));
952 sm501_gpio_ensure_gpio(smchip, bit);
953
932 spin_unlock_irqrestore(&smgpio->lock, save); 954 spin_unlock_irqrestore(&smgpio->lock, save);
933} 955}
934 956
@@ -941,8 +963,8 @@ static int sm501_gpio_input(struct gpio_chip *chip, unsigned offset)
941 unsigned long save; 963 unsigned long save;
942 unsigned long ddr; 964 unsigned long ddr;
943 965
944 dev_info(sm501_gpio_to_dev(smgpio)->dev, "%s(%p,%d)\n", 966 dev_dbg(sm501_gpio_to_dev(smgpio)->dev, "%s(%p,%d)\n",
945 __func__, chip, offset); 967 __func__, chip, offset);
946 968
947 spin_lock_irqsave(&smgpio->lock, save); 969 spin_lock_irqsave(&smgpio->lock, save);
948 970
@@ -950,6 +972,8 @@ static int sm501_gpio_input(struct gpio_chip *chip, unsigned offset)
950 writel(ddr & ~bit, regs + SM501_GPIO_DDR_LOW); 972 writel(ddr & ~bit, regs + SM501_GPIO_DDR_LOW);
951 973
952 sm501_sync_regs(sm501_gpio_to_dev(smgpio)); 974 sm501_sync_regs(sm501_gpio_to_dev(smgpio));
975 sm501_gpio_ensure_gpio(smchip, bit);
976
953 spin_unlock_irqrestore(&smgpio->lock, save); 977 spin_unlock_irqrestore(&smgpio->lock, save);
954 978
955 return 0; 979 return 0;
@@ -1012,9 +1036,11 @@ static int __devinit sm501_gpio_register_chip(struct sm501_devdata *sm,
1012 if (base > 0) 1036 if (base > 0)
1013 base += 32; 1037 base += 32;
1014 chip->regbase = gpio->regs + SM501_GPIO_DATA_HIGH; 1038 chip->regbase = gpio->regs + SM501_GPIO_DATA_HIGH;
1039 chip->control = sm->regs + SM501_GPIO63_32_CONTROL;
1015 gchip->label = "SM501-HIGH"; 1040 gchip->label = "SM501-HIGH";
1016 } else { 1041 } else {
1017 chip->regbase = gpio->regs + SM501_GPIO_DATA_LOW; 1042 chip->regbase = gpio->regs + SM501_GPIO_DATA_LOW;
1043 chip->control = sm->regs + SM501_GPIO31_0_CONTROL;
1018 gchip->label = "SM501-LOW"; 1044 gchip->label = "SM501-LOW";
1019 } 1045 }
1020 1046
diff --git a/drivers/mfd/twl4030-core.c b/drivers/mfd/twl4030-core.c
index b59c385cbc12..074b11ffbf41 100644
--- a/drivers/mfd/twl4030-core.c
+++ b/drivers/mfd/twl4030-core.c
@@ -38,6 +38,9 @@
38#include <linux/i2c.h> 38#include <linux/i2c.h>
39#include <linux/i2c/twl4030.h> 39#include <linux/i2c/twl4030.h>
40 40
41#ifdef CONFIG_ARM
42#include <mach/cpu.h>
43#endif
41 44
42/* 45/*
43 * The TWL4030 "Triton 2" is one of a family of a multi-function "Power 46 * The TWL4030 "Triton 2" is one of a family of a multi-function "Power
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 668472405a57..33da1127992a 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -82,4 +82,10 @@ config BATTERY_DA9030
82 Say Y here to enable support for batteries charger integrated into 82 Say Y here to enable support for batteries charger integrated into
83 DA9030 PMIC. 83 DA9030 PMIC.
84 84
85config CHARGER_PCF50633
86 tristate "NXP PCF50633 MBC"
87 depends on MFD_PCF50633
88 help
89 Say Y to include support for NXP PCF50633 Main Battery Charger.
90
85endif # POWER_SUPPLY 91endif # POWER_SUPPLY
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index eebb15505a40..2fcf41d13e5c 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -25,3 +25,4 @@ obj-$(CONFIG_BATTERY_TOSA) += tosa_battery.o
25obj-$(CONFIG_BATTERY_WM97XX) += wm97xx_battery.o 25obj-$(CONFIG_BATTERY_WM97XX) += wm97xx_battery.o
26obj-$(CONFIG_BATTERY_BQ27x00) += bq27x00_battery.o 26obj-$(CONFIG_BATTERY_BQ27x00) += bq27x00_battery.o
27obj-$(CONFIG_BATTERY_DA9030) += da9030_battery.o 27obj-$(CONFIG_BATTERY_DA9030) += da9030_battery.o
28obj-$(CONFIG_CHARGER_PCF50633) += pcf50633-charger.o \ No newline at end of file
diff --git a/drivers/power/pcf50633-charger.c b/drivers/power/pcf50633-charger.c
new file mode 100644
index 000000000000..e988ec130fcd
--- /dev/null
+++ b/drivers/power/pcf50633-charger.c
@@ -0,0 +1,358 @@
1/* NXP PCF50633 Main Battery Charger Driver
2 *
3 * (C) 2006-2008 by Openmoko, Inc.
4 * Author: Balaji Rao <balajirrao@openmoko.org>
5 * All rights reserved.
6 *
7 * Broken down from monstrous PCF50633 driver mainly by
8 * Harald Welte, Andy Green and Werner Almesberger
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16
17#include <linux/kernel.h>
18#include <linux/module.h>
19#include <linux/init.h>
20#include <linux/types.h>
21#include <linux/device.h>
22#include <linux/sysfs.h>
23#include <linux/platform_device.h>
24#include <linux/power_supply.h>
25
26#include <linux/mfd/pcf50633/core.h>
27#include <linux/mfd/pcf50633/mbc.h>
28
29struct pcf50633_mbc {
30 struct pcf50633 *pcf;
31
32 int adapter_active;
33 int adapter_online;
34 int usb_active;
35 int usb_online;
36
37 struct power_supply usb;
38 struct power_supply adapter;
39};
40
41int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma)
42{
43 struct pcf50633_mbc *mbc = platform_get_drvdata(pcf->mbc_pdev);
44 int ret = 0;
45 u8 bits;
46
47 if (ma >= 1000)
48 bits = PCF50633_MBCC7_USB_1000mA;
49 else if (ma >= 500)
50 bits = PCF50633_MBCC7_USB_500mA;
51 else if (ma >= 100)
52 bits = PCF50633_MBCC7_USB_100mA;
53 else
54 bits = PCF50633_MBCC7_USB_SUSPEND;
55
56 ret = pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_MBCC7,
57 PCF50633_MBCC7_USB_MASK, bits);
58 if (ret)
59 dev_err(pcf->dev, "error setting usb curlim to %d mA\n", ma);
60 else
61 dev_info(pcf->dev, "usb curlim to %d mA\n", ma);
62
63 power_supply_changed(&mbc->usb);
64
65 return ret;
66}
67EXPORT_SYMBOL_GPL(pcf50633_mbc_usb_curlim_set);
68
69int pcf50633_mbc_get_status(struct pcf50633 *pcf)
70{
71 struct pcf50633_mbc *mbc = platform_get_drvdata(pcf->mbc_pdev);
72 int status = 0;
73
74 if (mbc->usb_online)
75 status |= PCF50633_MBC_USB_ONLINE;
76 if (mbc->usb_active)
77 status |= PCF50633_MBC_USB_ACTIVE;
78 if (mbc->adapter_online)
79 status |= PCF50633_MBC_ADAPTER_ONLINE;
80 if (mbc->adapter_active)
81 status |= PCF50633_MBC_ADAPTER_ACTIVE;
82
83 return status;
84}
85EXPORT_SYMBOL_GPL(pcf50633_mbc_get_status);
86
87void pcf50633_mbc_set_status(struct pcf50633 *pcf, int what, int status)
88{
89 struct pcf50633_mbc *mbc = platform_get_drvdata(pcf->mbc_pdev);
90
91 if (what & PCF50633_MBC_USB_ONLINE)
92 mbc->usb_online = !!status;
93 if (what & PCF50633_MBC_USB_ACTIVE)
94 mbc->usb_active = !!status;
95 if (what & PCF50633_MBC_ADAPTER_ONLINE)
96 mbc->adapter_online = !!status;
97 if (what & PCF50633_MBC_ADAPTER_ACTIVE)
98 mbc->adapter_active = !!status;
99}
100EXPORT_SYMBOL_GPL(pcf50633_mbc_set_status);
101
102static ssize_t
103show_chgmode(struct device *dev, struct device_attribute *attr, char *buf)
104{
105 struct pcf50633_mbc *mbc = dev_get_drvdata(dev);
106
107 u8 mbcs2 = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCS2);
108 u8 chgmod = (mbcs2 & PCF50633_MBCS2_MBC_MASK);
109
110 return sprintf(buf, "%d\n", chgmod);
111}
112static DEVICE_ATTR(chgmode, S_IRUGO, show_chgmode, NULL);
113
114static ssize_t
115show_usblim(struct device *dev, struct device_attribute *attr, char *buf)
116{
117 struct pcf50633_mbc *mbc = dev_get_drvdata(dev);
118 u8 usblim = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCC7) &
119 PCF50633_MBCC7_USB_MASK;
120 unsigned int ma;
121
122 if (usblim == PCF50633_MBCC7_USB_1000mA)
123 ma = 1000;
124 else if (usblim == PCF50633_MBCC7_USB_500mA)
125 ma = 500;
126 else if (usblim == PCF50633_MBCC7_USB_100mA)
127 ma = 100;
128 else
129 ma = 0;
130
131 return sprintf(buf, "%u\n", ma);
132}
133
134static ssize_t set_usblim(struct device *dev,
135 struct device_attribute *attr, const char *buf, size_t count)
136{
137 struct pcf50633_mbc *mbc = dev_get_drvdata(dev);
138 unsigned long ma;
139 int ret;
140
141 ret = strict_strtoul(buf, 10, &ma);
142 if (ret)
143 return -EINVAL;
144
145 pcf50633_mbc_usb_curlim_set(mbc->pcf, ma);
146
147 return count;
148}
149
150static DEVICE_ATTR(usb_curlim, S_IRUGO | S_IWUSR, show_usblim, set_usblim);
151
152static struct attribute *pcf50633_mbc_sysfs_entries[] = {
153 &dev_attr_chgmode.attr,
154 &dev_attr_usb_curlim.attr,
155 NULL,
156};
157
158static struct attribute_group mbc_attr_group = {
159 .name = NULL, /* put in device directory */
160 .attrs = pcf50633_mbc_sysfs_entries,
161};
162
163static void
164pcf50633_mbc_irq_handler(int irq, void *data)
165{
166 struct pcf50633_mbc *mbc = data;
167
168 /* USB */
169 if (irq == PCF50633_IRQ_USBINS) {
170 mbc->usb_online = 1;
171 } else if (irq == PCF50633_IRQ_USBREM) {
172 mbc->usb_online = 0;
173 mbc->usb_active = 0;
174 pcf50633_mbc_usb_curlim_set(mbc->pcf, 0);
175 }
176
177 /* Adapter */
178 if (irq == PCF50633_IRQ_ADPINS) {
179 mbc->adapter_online = 1;
180 mbc->adapter_active = 1;
181 } else if (irq == PCF50633_IRQ_ADPREM) {
182 mbc->adapter_online = 0;
183 mbc->adapter_active = 0;
184 }
185
186 if (irq == PCF50633_IRQ_BATFULL) {
187 mbc->usb_active = 0;
188 mbc->adapter_active = 0;
189 }
190
191 power_supply_changed(&mbc->usb);
192 power_supply_changed(&mbc->adapter);
193
194 if (mbc->pcf->pdata->mbc_event_callback)
195 mbc->pcf->pdata->mbc_event_callback(mbc->pcf, irq);
196}
197
198static int adapter_get_property(struct power_supply *psy,
199 enum power_supply_property psp,
200 union power_supply_propval *val)
201{
202 struct pcf50633_mbc *mbc = container_of(psy, struct pcf50633_mbc, usb);
203 int ret = 0;
204
205 switch (psp) {
206 case POWER_SUPPLY_PROP_ONLINE:
207 val->intval = mbc->adapter_online;
208 break;
209 default:
210 ret = -EINVAL;
211 break;
212 }
213 return ret;
214}
215
216static int usb_get_property(struct power_supply *psy,
217 enum power_supply_property psp,
218 union power_supply_propval *val)
219{
220 struct pcf50633_mbc *mbc = container_of(psy, struct pcf50633_mbc, usb);
221 int ret = 0;
222
223 switch (psp) {
224 case POWER_SUPPLY_PROP_ONLINE:
225 val->intval = mbc->usb_online;
226 break;
227 default:
228 ret = -EINVAL;
229 break;
230 }
231 return ret;
232}
233
234static enum power_supply_property power_props[] = {
235 POWER_SUPPLY_PROP_ONLINE,
236};
237
238static const u8 mbc_irq_handlers[] = {
239 PCF50633_IRQ_ADPINS,
240 PCF50633_IRQ_ADPREM,
241 PCF50633_IRQ_USBINS,
242 PCF50633_IRQ_USBREM,
243 PCF50633_IRQ_BATFULL,
244 PCF50633_IRQ_CHGHALT,
245 PCF50633_IRQ_THLIMON,
246 PCF50633_IRQ_THLIMOFF,
247 PCF50633_IRQ_USBLIMON,
248 PCF50633_IRQ_USBLIMOFF,
249 PCF50633_IRQ_LOWSYS,
250 PCF50633_IRQ_LOWBAT,
251};
252
253static int __devinit pcf50633_mbc_probe(struct platform_device *pdev)
254{
255 struct pcf50633_mbc *mbc;
256 struct pcf50633_subdev_pdata *pdata = pdev->dev.platform_data;
257 int ret;
258 int i;
259 u8 mbcs1;
260
261 mbc = kzalloc(sizeof(*mbc), GFP_KERNEL);
262 if (!mbc)
263 return -ENOMEM;
264
265 platform_set_drvdata(pdev, mbc);
266 mbc->pcf = pdata->pcf;
267
268 /* Set up IRQ handlers */
269 for (i = 0; i < ARRAY_SIZE(mbc_irq_handlers); i++)
270 pcf50633_register_irq(mbc->pcf, mbc_irq_handlers[i],
271 pcf50633_mbc_irq_handler, mbc);
272
273 /* Create power supplies */
274 mbc->adapter.name = "adapter";
275 mbc->adapter.type = POWER_SUPPLY_TYPE_MAINS;
276 mbc->adapter.properties = power_props;
277 mbc->adapter.num_properties = ARRAY_SIZE(power_props);
278 mbc->adapter.get_property = &adapter_get_property;
279 mbc->adapter.supplied_to = mbc->pcf->pdata->batteries;
280 mbc->adapter.num_supplicants = mbc->pcf->pdata->num_batteries;
281
282 mbc->usb.name = "usb";
283 mbc->usb.type = POWER_SUPPLY_TYPE_USB;
284 mbc->usb.properties = power_props;
285 mbc->usb.num_properties = ARRAY_SIZE(power_props);
286 mbc->usb.get_property = usb_get_property;
287 mbc->usb.supplied_to = mbc->pcf->pdata->batteries;
288 mbc->usb.num_supplicants = mbc->pcf->pdata->num_batteries;
289
290 ret = power_supply_register(&pdev->dev, &mbc->adapter);
291 if (ret) {
292 dev_err(mbc->pcf->dev, "failed to register adapter\n");
293 kfree(mbc);
294 return ret;
295 }
296
297 ret = power_supply_register(&pdev->dev, &mbc->usb);
298 if (ret) {
299 dev_err(mbc->pcf->dev, "failed to register usb\n");
300 power_supply_unregister(&mbc->adapter);
301 kfree(mbc);
302 return ret;
303 }
304
305 ret = sysfs_create_group(&pdev->dev.kobj, &mbc_attr_group);
306 if (ret)
307 dev_err(mbc->pcf->dev, "failed to create sysfs entries\n");
308
309 mbcs1 = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCS1);
310 if (mbcs1 & PCF50633_MBCS1_USBPRES)
311 pcf50633_mbc_irq_handler(PCF50633_IRQ_USBINS, mbc);
312 if (mbcs1 & PCF50633_MBCS1_ADAPTPRES)
313 pcf50633_mbc_irq_handler(PCF50633_IRQ_ADPINS, mbc);
314
315 return 0;
316}
317
318static int __devexit pcf50633_mbc_remove(struct platform_device *pdev)
319{
320 struct pcf50633_mbc *mbc = platform_get_drvdata(pdev);
321 int i;
322
323 /* Remove IRQ handlers */
324 for (i = 0; i < ARRAY_SIZE(mbc_irq_handlers); i++)
325 pcf50633_free_irq(mbc->pcf, mbc_irq_handlers[i]);
326
327 power_supply_unregister(&mbc->usb);
328 power_supply_unregister(&mbc->adapter);
329
330 kfree(mbc);
331
332 return 0;
333}
334
335static struct platform_driver pcf50633_mbc_driver = {
336 .driver = {
337 .name = "pcf50633-mbc",
338 },
339 .probe = pcf50633_mbc_probe,
340 .remove = __devexit_p(pcf50633_mbc_remove),
341};
342
343static int __init pcf50633_mbc_init(void)
344{
345 return platform_driver_register(&pcf50633_mbc_driver);
346}
347module_init(pcf50633_mbc_init);
348
349static void __exit pcf50633_mbc_exit(void)
350{
351 platform_driver_unregister(&pcf50633_mbc_driver);
352}
353module_exit(pcf50633_mbc_exit);
354
355MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
356MODULE_DESCRIPTION("PCF50633 mbc driver");
357MODULE_LICENSE("GPL");
358MODULE_ALIAS("platform:pcf50633-mbc");
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 39360e2a4540..e7e0cf102d6d 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -73,4 +73,11 @@ config REGULATOR_DA903X
73 Say y here to support the BUCKs and LDOs regulators found on 73 Say y here to support the BUCKs and LDOs regulators found on
74 Dialog Semiconductor DA9030/DA9034 PMIC. 74 Dialog Semiconductor DA9030/DA9034 PMIC.
75 75
76config REGULATOR_PCF50633
77 tristate "PCF50633 regulator driver"
78 depends on MFD_PCF50633
79 help
80 Say Y here to support the voltage regulators and convertors
81 on PCF50633
82
76endif 83endif
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 254d40c02ee8..61b30c6ddecc 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -11,5 +11,6 @@ obj-$(CONFIG_REGULATOR_BQ24022) += bq24022.o
11obj-$(CONFIG_REGULATOR_WM8350) += wm8350-regulator.o 11obj-$(CONFIG_REGULATOR_WM8350) += wm8350-regulator.o
12obj-$(CONFIG_REGULATOR_WM8400) += wm8400-regulator.o 12obj-$(CONFIG_REGULATOR_WM8400) += wm8400-regulator.o
13obj-$(CONFIG_REGULATOR_DA903X) += da903x.o 13obj-$(CONFIG_REGULATOR_DA903X) += da903x.o
14obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o
14 15
15ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG 16ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG
diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c
new file mode 100644
index 000000000000..4cc85ec6e120
--- /dev/null
+++ b/drivers/regulator/pcf50633-regulator.c
@@ -0,0 +1,329 @@
1/* NXP PCF50633 PMIC Driver
2 *
3 * (C) 2006-2008 by Openmoko, Inc.
4 * Author: Balaji Rao <balajirrao@openmoko.org>
5 * All rights reserved.
6 *
7 * Broken down from monstrous PCF50633 driver mainly by
8 * Harald Welte and Andy Green and Werner Almesberger
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16
17#include <linux/kernel.h>
18#include <linux/module.h>
19#include <linux/init.h>
20#include <linux/device.h>
21#include <linux/err.h>
22#include <linux/platform_device.h>
23
24#include <linux/mfd/pcf50633/core.h>
25#include <linux/mfd/pcf50633/pmic.h>
26
27#define PCF50633_REGULATOR(_name, _id) \
28 { \
29 .name = _name, \
30 .id = _id, \
31 .ops = &pcf50633_regulator_ops, \
32 .type = REGULATOR_VOLTAGE, \
33 .owner = THIS_MODULE, \
34 }
35
36static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
37 [PCF50633_REGULATOR_AUTO] = PCF50633_REG_AUTOOUT,
38 [PCF50633_REGULATOR_DOWN1] = PCF50633_REG_DOWN1OUT,
39 [PCF50633_REGULATOR_DOWN2] = PCF50633_REG_DOWN2OUT,
40 [PCF50633_REGULATOR_MEMLDO] = PCF50633_REG_MEMLDOOUT,
41 [PCF50633_REGULATOR_LDO1] = PCF50633_REG_LDO1OUT,
42 [PCF50633_REGULATOR_LDO2] = PCF50633_REG_LDO2OUT,
43 [PCF50633_REGULATOR_LDO3] = PCF50633_REG_LDO3OUT,
44 [PCF50633_REGULATOR_LDO4] = PCF50633_REG_LDO4OUT,
45 [PCF50633_REGULATOR_LDO5] = PCF50633_REG_LDO5OUT,
46 [PCF50633_REGULATOR_LDO6] = PCF50633_REG_LDO6OUT,
47 [PCF50633_REGULATOR_HCLDO] = PCF50633_REG_HCLDOOUT,
48};
49
50/* Bits from voltage value */
51static u8 auto_voltage_bits(unsigned int millivolts)
52{
53 if (millivolts < 1800)
54 return 0;
55 if (millivolts > 3800)
56 return 0xff;
57
58 millivolts -= 625;
59
60 return millivolts / 25;
61}
62
63static u8 down_voltage_bits(unsigned int millivolts)
64{
65 if (millivolts < 625)
66 return 0;
67 else if (millivolts > 3000)
68 return 0xff;
69
70 millivolts -= 625;
71
72 return millivolts / 25;
73}
74
75static u8 ldo_voltage_bits(unsigned int millivolts)
76{
77 if (millivolts < 900)
78 return 0;
79 else if (millivolts > 3600)
80 return 0x1f;
81
82 millivolts -= 900;
83 return millivolts / 100;
84}
85
86/* Obtain voltage value from bits */
87static unsigned int auto_voltage_value(u8 bits)
88{
89 if (bits < 0x2f)
90 return 0;
91
92 return 625 + (bits * 25);
93}
94
95
96static unsigned int down_voltage_value(u8 bits)
97{
98 return 625 + (bits * 25);
99}
100
101
102static unsigned int ldo_voltage_value(u8 bits)
103{
104 bits &= 0x1f;
105
106 return 900 + (bits * 100);
107}
108
109static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev,
110 int min_uV, int max_uV)
111{
112 struct pcf50633 *pcf;
113 int regulator_id, millivolts;
114 u8 volt_bits, regnr;
115
116 pcf = rdev_get_drvdata(rdev);
117
118 regulator_id = rdev_get_id(rdev);
119 if (regulator_id >= PCF50633_NUM_REGULATORS)
120 return -EINVAL;
121
122 millivolts = min_uV / 1000;
123
124 regnr = pcf50633_regulator_registers[regulator_id];
125
126 switch (regulator_id) {
127 case PCF50633_REGULATOR_AUTO:
128 volt_bits = auto_voltage_bits(millivolts);
129 break;
130 case PCF50633_REGULATOR_DOWN1:
131 volt_bits = down_voltage_bits(millivolts);
132 break;
133 case PCF50633_REGULATOR_DOWN2:
134 volt_bits = down_voltage_bits(millivolts);
135 break;
136 case PCF50633_REGULATOR_LDO1:
137 case PCF50633_REGULATOR_LDO2:
138 case PCF50633_REGULATOR_LDO3:
139 case PCF50633_REGULATOR_LDO4:
140 case PCF50633_REGULATOR_LDO5:
141 case PCF50633_REGULATOR_LDO6:
142 case PCF50633_REGULATOR_HCLDO:
143 volt_bits = ldo_voltage_bits(millivolts);
144 break;
145 default:
146 return -EINVAL;
147 }
148
149 return pcf50633_reg_write(pcf, regnr, volt_bits);
150}
151
152static int pcf50633_regulator_get_voltage(struct regulator_dev *rdev)
153{
154 struct pcf50633 *pcf;
155 int regulator_id, millivolts, volt_bits;
156 u8 regnr;
157
158 pcf = rdev_get_drvdata(rdev);;
159
160 regulator_id = rdev_get_id(rdev);
161 if (regulator_id >= PCF50633_NUM_REGULATORS)
162 return -EINVAL;
163
164 regnr = pcf50633_regulator_registers[regulator_id];
165
166 volt_bits = pcf50633_reg_read(pcf, regnr);
167 if (volt_bits < 0)
168 return -1;
169
170 switch (regulator_id) {
171 case PCF50633_REGULATOR_AUTO:
172 millivolts = auto_voltage_value(volt_bits);
173 break;
174 case PCF50633_REGULATOR_DOWN1:
175 millivolts = down_voltage_value(volt_bits);
176 break;
177 case PCF50633_REGULATOR_DOWN2:
178 millivolts = down_voltage_value(volt_bits);
179 break;
180 case PCF50633_REGULATOR_LDO1:
181 case PCF50633_REGULATOR_LDO2:
182 case PCF50633_REGULATOR_LDO3:
183 case PCF50633_REGULATOR_LDO4:
184 case PCF50633_REGULATOR_LDO5:
185 case PCF50633_REGULATOR_LDO6:
186 case PCF50633_REGULATOR_HCLDO:
187 millivolts = ldo_voltage_value(volt_bits);
188 break;
189 default:
190 return -EINVAL;
191 }
192
193 return millivolts * 1000;
194}
195
196static int pcf50633_regulator_enable(struct regulator_dev *rdev)
197{
198 struct pcf50633 *pcf = rdev_get_drvdata(rdev);
199 int regulator_id;
200 u8 regnr;
201
202 regulator_id = rdev_get_id(rdev);
203 if (regulator_id >= PCF50633_NUM_REGULATORS)
204 return -EINVAL;
205
206 /* The *ENA register is always one after the *OUT register */
207 regnr = pcf50633_regulator_registers[regulator_id] + 1;
208
209 return pcf50633_reg_set_bit_mask(pcf, regnr, PCF50633_REGULATOR_ON,
210 PCF50633_REGULATOR_ON);
211}
212
213static int pcf50633_regulator_disable(struct regulator_dev *rdev)
214{
215 struct pcf50633 *pcf = rdev_get_drvdata(rdev);
216 int regulator_id;
217 u8 regnr;
218
219 regulator_id = rdev_get_id(rdev);
220 if (regulator_id >= PCF50633_NUM_REGULATORS)
221 return -EINVAL;
222
223 /* the *ENA register is always one after the *OUT register */
224 regnr = pcf50633_regulator_registers[regulator_id] + 1;
225
226 return pcf50633_reg_set_bit_mask(pcf, regnr,
227 PCF50633_REGULATOR_ON, 0);
228}
229
230static int pcf50633_regulator_is_enabled(struct regulator_dev *rdev)
231{
232 struct pcf50633 *pcf = rdev_get_drvdata(rdev);
233 int regulator_id = rdev_get_id(rdev);
234 u8 regnr;
235
236 regulator_id = rdev_get_id(rdev);
237 if (regulator_id >= PCF50633_NUM_REGULATORS)
238 return -EINVAL;
239
240 /* the *ENA register is always one after the *OUT register */
241 regnr = pcf50633_regulator_registers[regulator_id] + 1;
242
243 return pcf50633_reg_read(pcf, regnr) & PCF50633_REGULATOR_ON;
244}
245
246static struct regulator_ops pcf50633_regulator_ops = {
247 .set_voltage = pcf50633_regulator_set_voltage,
248 .get_voltage = pcf50633_regulator_get_voltage,
249 .enable = pcf50633_regulator_enable,
250 .disable = pcf50633_regulator_disable,
251 .is_enabled = pcf50633_regulator_is_enabled,
252};
253
254static struct regulator_desc regulators[] = {
255 [PCF50633_REGULATOR_AUTO] =
256 PCF50633_REGULATOR("auto", PCF50633_REGULATOR_AUTO),
257 [PCF50633_REGULATOR_DOWN1] =
258 PCF50633_REGULATOR("down1", PCF50633_REGULATOR_DOWN1),
259 [PCF50633_REGULATOR_DOWN2] =
260 PCF50633_REGULATOR("down2", PCF50633_REGULATOR_DOWN2),
261 [PCF50633_REGULATOR_LDO1] =
262 PCF50633_REGULATOR("ldo1", PCF50633_REGULATOR_LDO1),
263 [PCF50633_REGULATOR_LDO2] =
264 PCF50633_REGULATOR("ldo2", PCF50633_REGULATOR_LDO2),
265 [PCF50633_REGULATOR_LDO3] =
266 PCF50633_REGULATOR("ldo3", PCF50633_REGULATOR_LDO3),
267 [PCF50633_REGULATOR_LDO4] =
268 PCF50633_REGULATOR("ldo4", PCF50633_REGULATOR_LDO4),
269 [PCF50633_REGULATOR_LDO5] =
270 PCF50633_REGULATOR("ldo5", PCF50633_REGULATOR_LDO5),
271 [PCF50633_REGULATOR_LDO6] =
272 PCF50633_REGULATOR("ldo6", PCF50633_REGULATOR_LDO6),
273 [PCF50633_REGULATOR_HCLDO] =
274 PCF50633_REGULATOR("hcldo", PCF50633_REGULATOR_HCLDO),
275 [PCF50633_REGULATOR_MEMLDO] =
276 PCF50633_REGULATOR("memldo", PCF50633_REGULATOR_MEMLDO),
277};
278
279static int __devinit pcf50633_regulator_probe(struct platform_device *pdev)
280{
281 struct regulator_dev *rdev;
282 struct pcf50633 *pcf;
283
284 /* Already set by core driver */
285 pcf = platform_get_drvdata(pdev);
286
287 rdev = regulator_register(&regulators[pdev->id], &pdev->dev, pcf);
288 if (IS_ERR(rdev))
289 return PTR_ERR(rdev);
290
291 if (pcf->pdata->regulator_registered)
292 pcf->pdata->regulator_registered(pcf, pdev->id);
293
294 return 0;
295}
296
297static int __devexit pcf50633_regulator_remove(struct platform_device *pdev)
298{
299 struct regulator_dev *rdev = platform_get_drvdata(pdev);
300
301 regulator_unregister(rdev);
302
303 return 0;
304}
305
306static struct platform_driver pcf50633_regulator_driver = {
307 .driver = {
308 .name = "pcf50633-regltr",
309 },
310 .probe = pcf50633_regulator_probe,
311 .remove = __devexit_p(pcf50633_regulator_remove),
312};
313
314static int __init pcf50633_regulator_init(void)
315{
316 return platform_driver_register(&pcf50633_regulator_driver);
317}
318module_init(pcf50633_regulator_init);
319
320static void __exit pcf50633_regulator_exit(void)
321{
322 platform_driver_unregister(&pcf50633_regulator_driver);
323}
324module_exit(pcf50633_regulator_exit);
325
326MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
327MODULE_DESCRIPTION("PCF50633 regulator driver");
328MODULE_LICENSE("GPL");
329MODULE_ALIAS("platform:pcf50633-regulator");
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 4ad831de41ad..cced4d108319 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -502,6 +502,13 @@ config RTC_DRV_WM8350
502 This driver can also be built as a module. If so, the module 502 This driver can also be built as a module. If so, the module
503 will be called "rtc-wm8350". 503 will be called "rtc-wm8350".
504 504
505config RTC_DRV_PCF50633
506 depends on MFD_PCF50633
507 tristate "NXP PCF50633 RTC"
508 help
509 If you say yes here you get support for the RTC subsystem of the
510 NXP PCF50633 used in embedded systems.
511
505comment "on-CPU RTC drivers" 512comment "on-CPU RTC drivers"
506 513
507config RTC_DRV_OMAP 514config RTC_DRV_OMAP
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 9a4340d48f26..6e28021abb9d 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -74,3 +74,4 @@ obj-$(CONFIG_RTC_DRV_V3020) += rtc-v3020.o
74obj-$(CONFIG_RTC_DRV_VR41XX) += rtc-vr41xx.o 74obj-$(CONFIG_RTC_DRV_VR41XX) += rtc-vr41xx.o
75obj-$(CONFIG_RTC_DRV_WM8350) += rtc-wm8350.o 75obj-$(CONFIG_RTC_DRV_WM8350) += rtc-wm8350.o
76obj-$(CONFIG_RTC_DRV_X1205) += rtc-x1205.o 76obj-$(CONFIG_RTC_DRV_X1205) += rtc-x1205.o
77obj-$(CONFIG_RTC_DRV_PCF50633) += rtc-pcf50633.o
diff --git a/drivers/rtc/rtc-pcf50633.c b/drivers/rtc/rtc-pcf50633.c
new file mode 100644
index 000000000000..f4dd87e29075
--- /dev/null
+++ b/drivers/rtc/rtc-pcf50633.c
@@ -0,0 +1,344 @@
1/* NXP PCF50633 RTC Driver
2 *
3 * (C) 2006-2008 by Openmoko, Inc.
4 * Author: Balaji Rao <balajirrao@openmoko.org>
5 * All rights reserved.
6 *
7 * Broken down from monstrous PCF50633 driver mainly by
8 * Harald Welte, Andy Green and Werner Almesberger
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 */
16
17#include <linux/kernel.h>
18#include <linux/module.h>
19#include <linux/init.h>
20#include <linux/device.h>
21#include <linux/platform_device.h>
22#include <linux/rtc.h>
23#include <linux/bcd.h>
24#include <linux/err.h>
25
26#include <linux/mfd/pcf50633/core.h>
27
28#define PCF50633_REG_RTCSC 0x59 /* Second */
29#define PCF50633_REG_RTCMN 0x5a /* Minute */
30#define PCF50633_REG_RTCHR 0x5b /* Hour */
31#define PCF50633_REG_RTCWD 0x5c /* Weekday */
32#define PCF50633_REG_RTCDT 0x5d /* Day */
33#define PCF50633_REG_RTCMT 0x5e /* Month */
34#define PCF50633_REG_RTCYR 0x5f /* Year */
35#define PCF50633_REG_RTCSCA 0x60 /* Alarm Second */
36#define PCF50633_REG_RTCMNA 0x61 /* Alarm Minute */
37#define PCF50633_REG_RTCHRA 0x62 /* Alarm Hour */
38#define PCF50633_REG_RTCWDA 0x63 /* Alarm Weekday */
39#define PCF50633_REG_RTCDTA 0x64 /* Alarm Day */
40#define PCF50633_REG_RTCMTA 0x65 /* Alarm Month */
41#define PCF50633_REG_RTCYRA 0x66 /* Alarm Year */
42
43enum pcf50633_time_indexes {
44 PCF50633_TI_SEC,
45 PCF50633_TI_MIN,
46 PCF50633_TI_HOUR,
47 PCF50633_TI_WKDAY,
48 PCF50633_TI_DAY,
49 PCF50633_TI_MONTH,
50 PCF50633_TI_YEAR,
51 PCF50633_TI_EXTENT /* always last */
52};
53
54struct pcf50633_time {
55 u_int8_t time[PCF50633_TI_EXTENT];
56};
57
58struct pcf50633_rtc {
59 int alarm_enabled;
60 int second_enabled;
61
62 struct pcf50633 *pcf;
63 struct rtc_device *rtc_dev;
64};
65
66static void pcf2rtc_time(struct rtc_time *rtc, struct pcf50633_time *pcf)
67{
68 rtc->tm_sec = bcd2bin(pcf->time[PCF50633_TI_SEC]);
69 rtc->tm_min = bcd2bin(pcf->time[PCF50633_TI_MIN]);
70 rtc->tm_hour = bcd2bin(pcf->time[PCF50633_TI_HOUR]);
71 rtc->tm_wday = bcd2bin(pcf->time[PCF50633_TI_WKDAY]);
72 rtc->tm_mday = bcd2bin(pcf->time[PCF50633_TI_DAY]);
73 rtc->tm_mon = bcd2bin(pcf->time[PCF50633_TI_MONTH]);
74 rtc->tm_year = bcd2bin(pcf->time[PCF50633_TI_YEAR]) + 100;
75}
76
77static void rtc2pcf_time(struct pcf50633_time *pcf, struct rtc_time *rtc)
78{
79 pcf->time[PCF50633_TI_SEC] = bin2bcd(rtc->tm_sec);
80 pcf->time[PCF50633_TI_MIN] = bin2bcd(rtc->tm_min);
81 pcf->time[PCF50633_TI_HOUR] = bin2bcd(rtc->tm_hour);
82 pcf->time[PCF50633_TI_WKDAY] = bin2bcd(rtc->tm_wday);
83 pcf->time[PCF50633_TI_DAY] = bin2bcd(rtc->tm_mday);
84 pcf->time[PCF50633_TI_MONTH] = bin2bcd(rtc->tm_mon);
85 pcf->time[PCF50633_TI_YEAR] = bin2bcd(rtc->tm_year % 100);
86}
87
88static int
89pcf50633_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
90{
91 struct pcf50633_rtc *rtc = dev_get_drvdata(dev);
92 int err;
93
94 if (enabled)
95 err = pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_ALARM);
96 else
97 err = pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_ALARM);
98
99 if (err < 0)
100 return err;
101
102 rtc->alarm_enabled = enabled;
103
104 return 0;
105}
106
107static int
108pcf50633_rtc_update_irq_enable(struct device *dev, unsigned int enabled)
109{
110 struct pcf50633_rtc *rtc = dev_get_drvdata(dev);
111 int err;
112
113 if (enabled)
114 err = pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_SECOND);
115 else
116 err = pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_SECOND);
117
118 if (err < 0)
119 return err;
120
121 rtc->second_enabled = enabled;
122
123 return 0;
124}
125
126static int pcf50633_rtc_read_time(struct device *dev, struct rtc_time *tm)
127{
128 struct pcf50633_rtc *rtc;
129 struct pcf50633_time pcf_tm;
130 int ret;
131
132 rtc = dev_get_drvdata(dev);
133
134 ret = pcf50633_read_block(rtc->pcf, PCF50633_REG_RTCSC,
135 PCF50633_TI_EXTENT,
136 &pcf_tm.time[0]);
137 if (ret != PCF50633_TI_EXTENT) {
138 dev_err(dev, "Failed to read time\n");
139 return -EIO;
140 }
141
142 dev_dbg(dev, "PCF_TIME: %02x.%02x.%02x %02x:%02x:%02x\n",
143 pcf_tm.time[PCF50633_TI_DAY],
144 pcf_tm.time[PCF50633_TI_MONTH],
145 pcf_tm.time[PCF50633_TI_YEAR],
146 pcf_tm.time[PCF50633_TI_HOUR],
147 pcf_tm.time[PCF50633_TI_MIN],
148 pcf_tm.time[PCF50633_TI_SEC]);
149
150 pcf2rtc_time(tm, &pcf_tm);
151
152 dev_dbg(dev, "RTC_TIME: %u.%u.%u %u:%u:%u\n",
153 tm->tm_mday, tm->tm_mon, tm->tm_year,
154 tm->tm_hour, tm->tm_min, tm->tm_sec);
155
156 return rtc_valid_tm(tm);
157}
158
159static int pcf50633_rtc_set_time(struct device *dev, struct rtc_time *tm)
160{
161 struct pcf50633_rtc *rtc;
162 struct pcf50633_time pcf_tm;
163 int second_masked, alarm_masked, ret = 0;
164
165 rtc = dev_get_drvdata(dev);
166
167 dev_dbg(dev, "RTC_TIME: %u.%u.%u %u:%u:%u\n",
168 tm->tm_mday, tm->tm_mon, tm->tm_year,
169 tm->tm_hour, tm->tm_min, tm->tm_sec);
170
171 rtc2pcf_time(&pcf_tm, tm);
172
173 dev_dbg(dev, "PCF_TIME: %02x.%02x.%02x %02x:%02x:%02x\n",
174 pcf_tm.time[PCF50633_TI_DAY],
175 pcf_tm.time[PCF50633_TI_MONTH],
176 pcf_tm.time[PCF50633_TI_YEAR],
177 pcf_tm.time[PCF50633_TI_HOUR],
178 pcf_tm.time[PCF50633_TI_MIN],
179 pcf_tm.time[PCF50633_TI_SEC]);
180
181
182 second_masked = pcf50633_irq_mask_get(rtc->pcf, PCF50633_IRQ_SECOND);
183 alarm_masked = pcf50633_irq_mask_get(rtc->pcf, PCF50633_IRQ_ALARM);
184
185 if (!second_masked)
186 pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_SECOND);
187 if (!alarm_masked)
188 pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_ALARM);
189
190 /* Returns 0 on success */
191 ret = pcf50633_write_block(rtc->pcf, PCF50633_REG_RTCSC,
192 PCF50633_TI_EXTENT,
193 &pcf_tm.time[0]);
194
195 if (!second_masked)
196 pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_SECOND);
197 if (!alarm_masked)
198 pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_ALARM);
199
200 return ret;
201}
202
203static int pcf50633_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
204{
205 struct pcf50633_rtc *rtc;
206 struct pcf50633_time pcf_tm;
207 int ret = 0;
208
209 rtc = dev_get_drvdata(dev);
210
211 alrm->enabled = rtc->alarm_enabled;
212
213 ret = pcf50633_read_block(rtc->pcf, PCF50633_REG_RTCSCA,
214 PCF50633_TI_EXTENT, &pcf_tm.time[0]);
215 if (ret != PCF50633_TI_EXTENT) {
216 dev_err(dev, "Failed to read time\n");
217 return -EIO;
218 }
219
220 pcf2rtc_time(&alrm->time, &pcf_tm);
221
222 return rtc_valid_tm(&alrm->time);
223}
224
225static int pcf50633_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
226{
227 struct pcf50633_rtc *rtc;
228 struct pcf50633_time pcf_tm;
229 int alarm_masked, ret = 0;
230
231 rtc = dev_get_drvdata(dev);
232
233 rtc2pcf_time(&pcf_tm, &alrm->time);
234
235 /* do like mktime does and ignore tm_wday */
236 pcf_tm.time[PCF50633_TI_WKDAY] = 7;
237
238 alarm_masked = pcf50633_irq_mask_get(rtc->pcf, PCF50633_IRQ_ALARM);
239
240 /* disable alarm interrupt */
241 if (!alarm_masked)
242 pcf50633_irq_mask(rtc->pcf, PCF50633_IRQ_ALARM);
243
244 /* Returns 0 on success */
245 ret = pcf50633_write_block(rtc->pcf, PCF50633_REG_RTCSCA,
246 PCF50633_TI_EXTENT, &pcf_tm.time[0]);
247
248 if (!alarm_masked)
249 pcf50633_irq_unmask(rtc->pcf, PCF50633_IRQ_ALARM);
250
251 return ret;
252}
253
254static struct rtc_class_ops pcf50633_rtc_ops = {
255 .read_time = pcf50633_rtc_read_time,
256 .set_time = pcf50633_rtc_set_time,
257 .read_alarm = pcf50633_rtc_read_alarm,
258 .set_alarm = pcf50633_rtc_set_alarm,
259 .alarm_irq_enable = pcf50633_rtc_alarm_irq_enable,
260 .update_irq_enable = pcf50633_rtc_update_irq_enable,
261};
262
263static void pcf50633_rtc_irq(int irq, void *data)
264{
265 struct pcf50633_rtc *rtc = data;
266
267 switch (irq) {
268 case PCF50633_IRQ_ALARM:
269 rtc_update_irq(rtc->rtc_dev, 1, RTC_AF | RTC_IRQF);
270 break;
271 case PCF50633_IRQ_SECOND:
272 rtc_update_irq(rtc->rtc_dev, 1, RTC_UF | RTC_IRQF);
273 break;
274 }
275}
276
277static int __devinit pcf50633_rtc_probe(struct platform_device *pdev)
278{
279 struct pcf50633_subdev_pdata *pdata;
280 struct pcf50633_rtc *rtc;
281
282
283 rtc = kzalloc(sizeof(*rtc), GFP_KERNEL);
284 if (!rtc)
285 return -ENOMEM;
286
287 pdata = pdev->dev.platform_data;
288 rtc->pcf = pdata->pcf;
289 platform_set_drvdata(pdev, rtc);
290 rtc->rtc_dev = rtc_device_register("pcf50633-rtc", &pdev->dev,
291 &pcf50633_rtc_ops, THIS_MODULE);
292
293 if (IS_ERR(rtc->rtc_dev)) {
294 kfree(rtc);
295 return PTR_ERR(rtc->rtc_dev);
296 }
297
298 pcf50633_register_irq(rtc->pcf, PCF50633_IRQ_ALARM,
299 pcf50633_rtc_irq, rtc);
300 pcf50633_register_irq(rtc->pcf, PCF50633_IRQ_SECOND,
301 pcf50633_rtc_irq, rtc);
302
303 return 0;
304}
305
306static int __devexit pcf50633_rtc_remove(struct platform_device *pdev)
307{
308 struct pcf50633_rtc *rtc;
309
310 rtc = platform_get_drvdata(pdev);
311
312 pcf50633_free_irq(rtc->pcf, PCF50633_IRQ_ALARM);
313 pcf50633_free_irq(rtc->pcf, PCF50633_IRQ_SECOND);
314
315 rtc_device_unregister(rtc->rtc_dev);
316 kfree(rtc);
317
318 return 0;
319}
320
321static struct platform_driver pcf50633_rtc_driver = {
322 .driver = {
323 .name = "pcf50633-rtc",
324 },
325 .probe = pcf50633_rtc_probe,
326 .remove = __devexit_p(pcf50633_rtc_remove),
327};
328
329static int __init pcf50633_rtc_init(void)
330{
331 return platform_driver_register(&pcf50633_rtc_driver);
332}
333module_init(pcf50633_rtc_init);
334
335static void __exit pcf50633_rtc_exit(void)
336{
337 platform_driver_unregister(&pcf50633_rtc_driver);
338}
339module_exit(pcf50633_rtc_exit);
340
341MODULE_DESCRIPTION("PCF50633 RTC driver");
342MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
343MODULE_LICENSE("GPL");
344
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-21 12:19:58 -0500