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drm/tegra: Fix possible CRTC mask for RGB outputs

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The mask of possible CRTCs that an output (DRM encoder) can be attached
to is relative to the position within the DRM device's list of CRTCs.
Deferred probing can cause this to not match the pipe number associated
with a CRTC. Use the newly introduced drm_crtc_mask() to compute the
mask by looking up the proper index of the given CRTC in the list.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2014-01-10 16:56:06 +01:00
parent 14509916c3
commit 456ac56b7d
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/tegra/rgb.c
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@ -258,7 +258,7 @@ int tegra_dc_rgb_init(struct drm_device *drm, struct tegra_dc *dc)
* RGB outputs are an exception, so we make sure they can be attached
* to only their parent display controller.
*/
rgb->output.encoder.possible_crtcs = 1 << dc->pipe;
rgb->output.encoder.possible_crtcs = drm_crtc_mask(&dc->base);
return 0;
}