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To support ycbcr output, we need a pipe CSC block to do
RGB->YCBCR conversion.
Current Intel platforms have only one pipe CSC unit, so
we can either do color correction using it, or we can perform
RGB->YCBCR conversion.
This function adds a csc handler, which uses recommended bspec
values to perform RGB->YCBCR conversion (target color space BT709)
V2: Rebase
V3: Rebase
V4: Rebase
V5: Addressed review comments from Ander
- Remove extra line added in the patch
- Add the spec details in the commit message
- Combine two if(cond) while calling intel_crtc_compute_config
V6: Handle YCBCR420 outputs only (Ville)
V7: Addressed review comments from Ville:
- Add description about target colorspace
- Remove the comments from CSC function
- DRM_DEBUG->DEBUG_KMS for atomic failure due to CSC unit busy
- Remove unnecessary debug message about YCBCR420 possibe
V8: Addressed review comments from Ville:
- Remove extra comment, not required.
- Do not add extra variable for CTM, reuse pipe_config
Added r-b from Ville
V9: Remove extra whitespace (Imre)
V10: Added r-b from Imre
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Cc: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjala <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1500650709-14447-5-git-send-email-shashank.sharma@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.