diff options
| author | Inki Dae <inki.dae@samsung.com> | 2014-12-02 22:05:01 +0900 |
|---|---|---|
| committer | Inki Dae <inki.dae@samsung.com> | 2015-06-08 17:56:43 +0900 |
| commit | 3bdf6a624cd1225fa8fe2e6366ca6b63c8882c72 (patch) | |
| tree | 1b277cbdbc6469781b779a8f963b9f41c8d2fd7d /drivers/gpu/drm/exynos/exynos_drm_crtc.c | |
| parent | 6c0f62d75991cffb9f27e0e45a22e8ea4b06e7e7 (diff) | |
| download | linux-3.10-3bdf6a624cd1225fa8fe2e6366ca6b63c8882c72.tar.gz linux-3.10-3bdf6a624cd1225fa8fe2e6366ca6b63c8882c72.tar.bz2 linux-3.10-3bdf6a624cd1225fa8fe2e6366ca6b63c8882c72.zip | |
drm/exynos: add LPD: Low Power Display mechanism supporttizen_LPD
The purpose of this mechanism is to transfer the only framebuffer
region updated by X server to Display panel to save power consumed
by Display relevant DMA devices.
Change-Id: I2589c617d817833011e761c9c8835e287ff2fb7c
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_crtc.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index 7e52a170d1f..d35f7782e36 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -594,3 +594,37 @@ int exynos_drm_crtc_te_handler(struct drm_crtc *crtc) return ret; } + +void exynos_drm_crtc_adjust_partial_region(struct drm_crtc *crtc, + struct exynos_drm_partial_pos *pos) +{ + struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc); + struct exynos_drm_manager *mgr = exynos_crtc->manager; + + if (mgr && mgr->ops->adjust_partial_region) + mgr->ops->adjust_partial_region(mgr, &pos->x, &pos->y, + &pos->w, &pos->h); +} + +void exynos_drm_crtc_change_resolution(struct drm_device *drm_dev, + unsigned int pipe, unsigned int x, + unsigned int y, unsigned int w, + unsigned int h) +{ + struct exynos_drm_private *private = drm_dev->dev_private; + struct exynos_drm_crtc *exynos_crtc = + to_exynos_crtc(private->crtc[pipe]); + struct exynos_drm_manager *manager = exynos_crtc->manager; + struct drm_encoder *encoder; + + /* TODO. mutex_lock */ + + list_for_each_entry(encoder, &drm_dev->mode_config.encoder_list, head) { + if (encoder->crtc == &exynos_crtc->drm_crtc) { + exynos_drm_encoder_change_resolution(encoder, x, y, + w, h); + break; + } + } +} + |