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| author | YoungJun Cho <yj44.cho@samsung.com> | 2014-07-17 18:01:19 +0900 |
|---|---|---|
| committer | Inki Dae <daeinki@gmail.com> | 2014-08-03 16:52:15 +0900 |
| commit | 5595d4d821033d4d7c4cc394b3bbc76b020f0342 (patch) | |
| tree | 3e3309cc72a60633a2cbb5338db2bf55277f2229 /drivers/gpu/drm/exynos/exynos_drm_crtc.h | |
| parent | 8e1c06cf65819d9e0fff061324f9f7edff83583e (diff) | |
| download | linux-5595d4d821033d4d7c4cc394b3bbc76b020f0342.tar.gz | |
drm/exynos: add TE handler to support LCD I80 interface
To support LCD I80 interface, the panel should generate Tearing Effect synchronization signal between MCU and FB to display video images. And the display controller should trigger to transfer video image at this signal. So the panel receives the TE IRQ, then calls these handler chains to notify it to the display controller. Signed-off-by: YoungJun Cho <yj44.cho@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_crtc.h')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_crtc.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.h b/drivers/gpu/drm/exynos/exynos_drm_crtc.h index 9f74b10a8a01..690dcddab725 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.h +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.h @@ -36,4 +36,11 @@ void exynos_drm_crtc_plane_disable(struct drm_crtc *crtc, int zpos); int exynos_drm_crtc_get_pipe_from_type(struct drm_device *drm_dev, unsigned int out_type); +/* + * This function calls the crtc device(manager)'s te_handler() callback + * to trigger to transfer video image at the tearing effect synchronization + * signal. + */ +void exynos_drm_crtc_te_handler(struct drm_crtc *crtc); + #endif |