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| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2011-09-02 09:25:32 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-09-06 18:08:46 (GMT) |
| commit | e9e21083ef9361f89e19bb709eac441edc24ba02 (patch) | |
| tree | 803f00fdff03b352d11f1f93bacc24fabeff6759 /drivers/media/video/s5p-fimc/fimc-core.h | |
| parent | bd323e28bd82dfd4b72c50ddc4d5fc24e3678b99 (diff) | |
| download | linux-e9e21083ef9361f89e19bb709eac441edc24ba02.tar.xz | |
[media] s5p-fimc: Add runtime PM support in the mem-to-mem driver
Add runtime PM and system sleep support in the memory-to-memory
driver. It's required to enable the FIMC operation on Exynos4
SoCs. This patch prevents system boot failure when the driver
is compiled in, as it now tries to access its I/O memory without
first enabling the corresponding power domain.
The camera capture device suspend/resume is not fully covered,
the capture device is just powered on/off during the video
node open/close. However this enables it's normal operation
on Exynos4 SoCs.
[mchehab@redhat.com: fix a small checkpatch error]
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/s5p-fimc/fimc-core.h')
| -rw-r--r-- | drivers/media/video/s5p-fimc/fimc-core.h | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/media/video/s5p-fimc/fimc-core.h b/drivers/media/video/s5p-fimc/fimc-core.h index 1f70772..e34cf3b 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.h +++ b/drivers/media/video/s5p-fimc/fimc-core.h @@ -48,22 +48,26 @@ enum { }; enum fimc_dev_flags { - /* for m2m node */ - ST_IDLE, - ST_OUTDMA_RUN, + ST_LPM, + /* m2m node */ + ST_M2M_RUN, ST_M2M_PEND, - /* for capture node */ + ST_M2M_SUSPENDING, + ST_M2M_SUSPENDED, + /* capture node */ ST_CAPT_PEND, ST_CAPT_RUN, ST_CAPT_STREAM, ST_CAPT_SHUT, + ST_CAPT_BUSY, }; -#define fimc_m2m_active(dev) test_bit(ST_OUTDMA_RUN, &(dev)->state) +#define fimc_m2m_active(dev) test_bit(ST_M2M_RUN, &(dev)->state) #define fimc_m2m_pending(dev) test_bit(ST_M2M_PEND, &(dev)->state) #define fimc_capture_running(dev) test_bit(ST_CAPT_RUN, &(dev)->state) #define fimc_capture_pending(dev) test_bit(ST_CAPT_PEND, &(dev)->state) +#define fimc_capture_busy(dev) test_bit(ST_CAPT_BUSY, &(dev)->state) enum fimc_datapath { FIMC_CAMERA, @@ -644,6 +648,8 @@ void fimc_unregister_capture_device(struct fimc_dev *fimc); int fimc_sensor_sd_init(struct fimc_dev *fimc, int index); int fimc_vid_cap_buf_queue(struct fimc_dev *fimc, struct fimc_vid_buffer *fimc_vb); +int fimc_capture_suspend(struct fimc_dev *fimc); +int fimc_capture_resume(struct fimc_dev *fimc); /* Locking: the caller holds fimc->slock */ static inline void fimc_activate_capture(struct fimc_ctx *ctx) |