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| author | Brian Starkey <brian.starkey@arm.com> | 2017-11-02 16:49:51 +0000 |
|---|---|---|
| committer | Liviu Dudau <Liviu.Dudau@arm.com> | 2018-07-05 15:19:03 +0100 |
| commit | 8cbc5caf36ef7a299b5cbedf55f27fd898d700bf (patch) | |
| tree | 4cbd93fbd445f1b6072dfd8b4b0c7d7ec66abe35 /drivers/gpu/drm/arm/malidp_hw.c | |
| parent | 09368e32a97587d4e118b800c206b4c86b4db845 (diff) | |
| download | linux-stable-8cbc5caf36ef7a299b5cbedf55f27fd898d700bf.tar.gz linux-stable-8cbc5caf36ef7a299b5cbedf55f27fd898d700bf.tar.bz2 linux-stable-8cbc5caf36ef7a299b5cbedf55f27fd898d700bf.zip | |
drm: mali-dp: Add writeback connector
Mali-DP has a memory writeback engine which can be used to write the
composition result to a memory buffer. Expose this functionality as a
DRM writeback connector on supported hardware.
Changes since v1:
Daniel Vetter:
- Don't require a modeset when writeback routing changes
- Make writeback connector always disconnected
Changes since v2:
- Rebase onto new drm_writeback_connector
- Add reset callback, allocating subclassed state
Daniel Vetter:
- Squash out-fence support into this commit
Gustavo Padovan:
- Don't signal fence directly from driver (and drop malidp_mw_job)
Changes since v3:
- Modifications to fit with Mali-DP commit tail changes
Signed-off-by: Brian Starkey <brian.starkey@arm.com>
[rebased and fixed conflicts]
Signed-off-by: Mihail Atanassov <mihail.atanassov@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Diffstat (limited to 'drivers/gpu/drm/arm/malidp_hw.c')
| -rw-r--r-- | drivers/gpu/drm/arm/malidp_hw.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/arm/malidp_hw.c b/drivers/gpu/drm/arm/malidp_hw.c index 36c7e910069a..449b7ef0a77f 100644 --- a/drivers/gpu/drm/arm/malidp_hw.c +++ b/drivers/gpu/drm/arm/malidp_hw.c @@ -21,6 +21,7 @@ #include "malidp_drv.h" #include "malidp_hw.h" +#include "malidp_mw.h" enum { MW_NOT_ENABLED = 0, /* SE writeback not enabled */ @@ -996,7 +997,11 @@ static irqreturn_t malidp_se_irq(int irq, void *arg) if (status & se->vsync_irq) { switch (hwdev->mw_state) { + case MW_ONESHOT: + drm_writeback_signal_completion(&malidp->mw_connector, 0); + break; case MW_STOP: + drm_writeback_signal_completion(&malidp->mw_connector, 0); /* disable writeback after stop */ hwdev->mw_state = MW_NOT_ENABLED; break; |