diff options
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_encoder.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_encoder.c | 97 |
1 files changed, 53 insertions, 44 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c index e51503fbaf2b..c63721f64aec 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c +++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c @@ -6,24 +6,10 @@ * Joonyoung Shim <jy0922.shim@samsung.com> * Seung-Woo Kim <sw0312.kim@samsung.com> * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. */ #include <drm/drmP.h> @@ -43,12 +29,14 @@ * @manager: specific encoder has its own manager to control a hardware * appropriately and we can access a hardware drawing on this manager. * @dpms: store the encoder dpms value. + * @updated: indicate whether overlay data updating is needed or not. */ struct exynos_drm_encoder { struct drm_crtc *old_crtc; struct drm_encoder drm_encoder; struct exynos_drm_manager *manager; - int dpms; + int dpms; + bool updated; }; static void exynos_drm_connector_power(struct drm_encoder *encoder, int mode) @@ -85,7 +73,9 @@ static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode) switch (mode) { case DRM_MODE_DPMS_ON: if (manager_ops && manager_ops->apply) - manager_ops->apply(manager->dev); + if (!exynos_encoder->updated) + manager_ops->apply(manager->dev); + exynos_drm_connector_power(encoder, mode); exynos_encoder->dpms = mode; break; @@ -94,6 +84,7 @@ static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode) case DRM_MODE_DPMS_OFF: exynos_drm_connector_power(encoder, mode); exynos_encoder->dpms = mode; + exynos_encoder->updated = false; break; default: DRM_ERROR("unspecified mode %d\n", mode); @@ -205,15 +196,56 @@ static void exynos_drm_encoder_prepare(struct drm_encoder *encoder) static void exynos_drm_encoder_commit(struct drm_encoder *encoder) { - struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder); + struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder); + struct exynos_drm_manager *manager = exynos_encoder->manager; struct exynos_drm_manager_ops *manager_ops = manager->ops; DRM_DEBUG_KMS("%s\n", __FILE__); if (manager_ops && manager_ops->commit) manager_ops->commit(manager->dev); + + /* + * this will avoid one issue that overlay data is updated to + * real hardware two times. + * And this variable will be used to check if the data was + * already updated or not by exynos_drm_encoder_dpms function. + */ + exynos_encoder->updated = true; + + /* + * In case of setcrtc, there is no way to update encoder's dpms + * so update it here. + */ + exynos_encoder->dpms = DRM_MODE_DPMS_ON; +} + +void exynos_drm_encoder_complete_scanout(struct drm_framebuffer *fb) +{ + struct exynos_drm_encoder *exynos_encoder; + struct exynos_drm_manager_ops *ops; + struct drm_device *dev = fb->dev; + struct drm_encoder *encoder; + + /* + * make sure that overlay data are updated to real hardware + * for all encoders. + */ + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + exynos_encoder = to_exynos_encoder(encoder); + ops = exynos_encoder->manager->ops; + + /* + * wait for vblank interrupt + * - this makes sure that overlay data are updated to + * real hardware. + */ + if (ops->wait_for_vblank) + ops->wait_for_vblank(exynos_encoder->manager->dev); + } } + static void exynos_drm_encoder_disable(struct drm_encoder *encoder) { struct drm_plane *plane; @@ -401,19 +433,6 @@ void exynos_drm_encoder_crtc_dpms(struct drm_encoder *encoder, void *data) manager_ops->dpms(manager->dev, mode); /* - * set current mode to new one so that data aren't updated into - * registers by drm_helper_connector_dpms two times. - * - * in case that drm_crtc_helper_set_mode() is called, - * overlay_ops->commit() and manager_ops->commit() callbacks - * can be called two times, first at drm_crtc_helper_set_mode() - * and second at drm_helper_connector_dpms(). - * so with this setting, when drm_helper_connector_dpms() is called - * encoder->funcs->dpms() will be ignored. - */ - exynos_encoder->dpms = mode; - - /* * if this condition is ok then it means that the crtc is already * detached from encoder and last function for detaching is properly * done, so clear pipe from manager to prevent repeated call. @@ -498,14 +517,4 @@ void exynos_drm_encoder_plane_disable(struct drm_encoder *encoder, void *data) if (overlay_ops && overlay_ops->disable) overlay_ops->disable(manager->dev, zpos); - - /* - * wait for vblank interrupt - * - this makes sure that hardware overlay is disabled to avoid - * for the dma accesses to memory after gem buffer was released - * because the setting for disabling the overlay will be updated - * at vsync. - */ - if (overlay_ops->wait_for_vblank) - overlay_ops->wait_for_vblank(manager->dev); } |