| Date: | 2011-10-04 12:04:43 (12 years 2 months ago) |
|---|---|
| Author: | Maarten ter Huurne |
| Commit: | 85dd1596e0f79827843c569b12617228f66600c1 |
| Message: | media: radio: RDA5807: Implemented suspend and resume. On suspend, disable the chip to save power. On resume, enable the chip if the radio device is not muted. |
| Files: |
drivers/media/radio/radio-rda5807.c (3 diffs) |
Change Details
| drivers/media/radio/radio-rda5807.c | ||
|---|---|---|
| 36 | 36 | #include <linux/module.h> |
| 37 | 37 | #include <linux/i2c.h> |
| 38 | 38 | #include <linux/kernel.h> |
| 39 | #include <linux/pm.h> | |
| 39 | 40 | #include <linux/slab.h> |
| 40 | 41 | #include <linux/types.h> |
| 41 | 42 | #include <linux/videodev2.h> |
| ... | ... | |
| 440 | 441 | return 0; |
| 441 | 442 | } |
| 442 | 443 | |
| 444 | #ifdef CONFIG_PM | |
| 445 | ||
| 446 | static int rda5807_suspend(struct device *dev) | |
| 447 | { | |
| 448 | struct i2c_client *client = to_i2c_client(dev); | |
| 449 | struct rda5807_driver *radio = i2c_get_clientdata(client); | |
| 450 | ||
| 451 | return rda5807_set_enable(radio, 0); | |
| 452 | } | |
| 453 | ||
| 454 | static int rda5807_resume(struct device *dev) | |
| 455 | { | |
| 456 | struct i2c_client *client = to_i2c_client(dev); | |
| 457 | struct rda5807_driver *radio = i2c_get_clientdata(client); | |
| 458 | struct v4l2_ctrl *mute_ctrl = v4l2_ctrl_find(&radio->ctrl_handler, | |
| 459 | V4L2_CID_AUDIO_MUTE); | |
| 460 | s32 mute_val = v4l2_ctrl_g_ctrl(mute_ctrl); | |
| 461 | int enabled = !mute_val; | |
| 462 | ||
| 463 | if (enabled) | |
| 464 | return rda5807_set_enable(radio, enabled); | |
| 465 | else | |
| 466 | return 0; | |
| 467 | } | |
| 468 | ||
| 469 | static SIMPLE_DEV_PM_OPS(rda5807_pm_ops, rda5807_suspend, rda5807_resume); | |
| 470 | #define RDA5807_PM_OPS (&rda5807_pm_ops) | |
| 471 | ||
| 472 | #else | |
| 473 | ||
| 474 | #define RDA5807_PM_OPS NULL | |
| 475 | ||
| 476 | #endif | |
| 477 | ||
| 443 | 478 | static const struct i2c_device_id rda5807_id[] = { |
| 444 | 479 | { "radio-rda5807", 0 }, |
| 445 | 480 | { } |
| ... | ... | |
| 451 | 486 | .remove = __devexit_p(rda5807_i2c_remove), |
| 452 | 487 | .id_table = rda5807_id, |
| 453 | 488 | .driver = { |
| 454 | .name = "radio-rda5807", | |
| 455 | .owner = THIS_MODULE, | |
| 489 | .name = "radio-rda5807", | |
| 490 | .owner = THIS_MODULE, | |
| 491 | .pm = RDA5807_PM_OPS, | |
| 456 | 492 | }, |
| 457 | 493 | }; |
| 458 | 494 | |
Branches:
ben-wpan
ben-wpan-stefan
5396a9238205f20f811ea57898980d3ca82df0b6
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
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jz-2.6.36
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jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
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jz-3.3
jz-3.4
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jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9
