diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-01-20 14:01:31 -0300 |
commit | b4b7ff4b08e691656c9d77c758fc355833128ac0 (patch) | |
tree | 82fcb00e6b918026dc9f2d1f05ed8eee83874cc0 /drivers/gpu/drm/vc4/vc4_kms.c | |
parent | 35acfa0fc609f2a2cd95cef4a6a9c3a5c38f1778 (diff) |
Linux-libre 4.4-gnupck-4.4-gnu
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_kms.c')
-rw-r--r-- | drivers/gpu/drm/vc4/vc4_kms.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c new file mode 100644 index 000000000..2e5597d10 --- /dev/null +++ b/drivers/gpu/drm/vc4/vc4_kms.c @@ -0,0 +1,67 @@ +/* + * Copyright (C) 2015 Broadcom + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +/** + * DOC: VC4 KMS + * + * This is the general code for implementing KMS mode setting that + * doesn't clearly associate with any of the other objects (plane, + * crtc, HDMI encoder). + */ + +#include "drm_crtc.h" +#include "drm_atomic_helper.h" +#include "drm_crtc_helper.h" +#include "drm_plane_helper.h" +#include "drm_fb_cma_helper.h" +#include "vc4_drv.h" + +static void vc4_output_poll_changed(struct drm_device *dev) +{ + struct vc4_dev *vc4 = to_vc4_dev(dev); + + if (vc4->fbdev) + drm_fbdev_cma_hotplug_event(vc4->fbdev); +} + +static const struct drm_mode_config_funcs vc4_mode_funcs = { + .output_poll_changed = vc4_output_poll_changed, + .atomic_check = drm_atomic_helper_check, + .atomic_commit = drm_atomic_helper_commit, + .fb_create = drm_fb_cma_create, +}; + +int vc4_kms_load(struct drm_device *dev) +{ + struct vc4_dev *vc4 = to_vc4_dev(dev); + int ret; + + ret = drm_vblank_init(dev, dev->mode_config.num_crtc); + if (ret < 0) { + dev_err(dev->dev, "failed to initialize vblank\n"); + return ret; + } + + dev->mode_config.max_width = 2048; + dev->mode_config.max_height = 2048; + dev->mode_config.funcs = &vc4_mode_funcs; + dev->mode_config.preferred_depth = 24; + dev->vblank_disable_allowed = true; + + drm_mode_config_reset(dev); + + vc4->fbdev = drm_fbdev_cma_init(dev, 32, + dev->mode_config.num_crtc, + dev->mode_config.num_connector); + if (IS_ERR(vc4->fbdev)) + vc4->fbdev = NULL; + + drm_kms_helper_poll_init(dev); + + return 0; +} |