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This patch checks a support of YCBCR420 outputs on an encoder level. If the input mode is YCBCR420-only mode then it prepares DP as an YCBCR420 output, else it continues with RGB output mode. It set output_format to INTEL_OUTPUT_FORMAT_YCBCR420 in order to using a pipe scaler as RGB to YCbCr 4:4:4. v2: Addressed review comments from Ville. Style fixed with few naming. %s/config/crtc_state/ %s/intel_crtc/crtc/ If lscon is active, it makes not to call intel_dp_ycbcr420_config() to avoid to clobber of lspcon_ycbcr420_config() routine. And it move the 420_only check into the intel_dp_ycbcr420_config(). v3: Fix uninitialized return value and it is reported by Dan Carpenter. v4: Addressed review comments from Ville. In order to avoid the extra indentation, it inverts if-clause on intel_dp_ycbcr420_config(). Remove the error print where no errors print are allowed. v6: Rebase v7: Move intel_dp_get_colorimetry_status() to intel_dp from intel_psr. intel_dp_get_colorimetry_status() checks VSC_SDP_EXTENSION_FOR_COLORIMETRY_SUPPORTED bit in the DPRX_FEATURE_ENUMERATION_LIST register. And intel_dp_ycbcr420_config() uses intel_dp_get_colorimetry_status(). Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190521121721.32010-2-gwan-gyeong.mun@intel.com |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.