kernel/linux.git/drivers/gpu/drm/tegra/fb.c, branch linux-4.4.y

drm/tegra: fb: Remove gratuituous blank line

2015-10-30T15:54:41+00:00

This was introduced by mistake in commit 0f7d9052fb70 ("drm/tegra: Use new drm_fb_helper functions"). Remove it. Signed-off-by: Thierry Reding

drm/tegra: Use new drm_fb_helper functions

2015-08-06T12:12:57+00:00

Use the newly created wrapper drm_fb_helper functions instead of calling core fbdev functions directly. They also simplify the fb_info creation. v2: - Fix up error handling path in tegra_fbdev_probe Cc: Thierry Reding Cc: "Terje Bergström" Cc: Stephen Warren Signed-off-by: Archit Taneja Signed-off-by: Daniel Vetter

drm/tegra: Move tegra_drm_mode_funcs to the core

2015-01-27T09:14:44+00:00

This structure will be extended using non-framebuffer related callbacks in subsequent patches, so it should move to a more central location. Signed-off-by: Thierry Reding

drm/tegra: fb: Add error codes to error messages

2014-11-13T15:18:34+00:00

This helps in determining what errors happened at specifics points in the initialization sequence. Signed-off-by: Thierry Reding

drm/tegra: fb: Properly release GEM objects on failure

2014-11-13T15:18:33+00:00

When fbdev initialization fails, make sure to unreference the GEM objects properly. Note that we can't do this in the general error unwinding path because ownership of the GEM object references is transferred to the framebuffer upon creation. Signed-off-by: Thierry Reding

drm/tegra: fb: Do not destroy framebuffer

2014-11-13T15:18:32+00:00

Drop a reference instead of directly calling the framebuffer .destroy() callback at fbdev free time. This is necessary to make sure the object isn't destroyed if anyone else still has a reference. Reviewed-by: Daniel Vetter Signed-off-by: Thierry Reding

drm/tegra: Add IOMMU support

2014-11-13T15:14:48+00:00

When an IOMMU device is available on the platform bus, allocate an IOMMU domain and attach the display controllers to it. The display controllers can then scan out non-contiguous buffers by mapping them through the IOMMU. Signed-off-by: Thierry Reding

drm/tegra: Fix error handling cleanup

2014-11-13T15:14:48+00:00

The DRM driver's ->load() implementation didn't do a good job (no job at all really) cleaning up on failure. Fix that by undoing any prior setup when an error occurs. This requires a bit of rework to make it possible to clean up fbdev midway. This was tested by injecting errors at various points during the initialization sequence and verifying that error cleanup didn't crash and no memory leaked (using kmemleak). Reported-by: Stéphane Marchesin Reported-by: Sean Paul Reviewed-by: Sean Paul Signed-off-by: Thierry Reding

drm/tegra: Properly align stride for framebuffers

2014-08-04T08:07:38+00:00

Tegra20 and Tegra30 both required the buffer line stride to be aligned on 8 byte boundaries. Tegra114 and Tegra124 increased the alignment to 64 bytes. Introduce a parameter to specify the alignment requirements for each display controller and round up the pitch of newly allocated framebuffers appropriately. Originally-by: Stéphane Marchesin Signed-off-by: Thierry Reding

drm/tegra: Implement more tiling modes

2014-08-04T08:07:34+00:00

Tegra124 supports a block-linear mode in addition to the regular pitch linear and tiled modes. Add support for these by moving the internal representation into a structure rather than a simple flag. Tested-by: Alexandre Courbot Signed-off-by: Thierry Reding