mirror of https://gitee.com/openkylin/linux.git
20f24d776d
This patch adds HDCP support for DisplayPort connectors by implementing the intel_hdcp_shim. Most of this is straightforward read/write from/to DPCD registers. One thing worth pointing out is the Aksv output bit. It wasn't easily separable like it's HDMI counterpart, so it's crammed in with the rest of it. Changes in v2: - Moved intel_hdcp_check_link out of intel_dp_check_link and only call it on short pulse. Since intel_hdcp_check_link does its own locking, this ensures we don't deadlock when intel_dp_check_link is called holding connection_mutex. - Rebased on drm-intel-next Changes in v3: - Initialize new worker Changes in v4: - Use intel_hdcp_init (Daniel) - Check for reauth requests in check_link (Ram) Changes in v5: - None Changes in v6: - Fix build warnings when printing ssize_t Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Ramalingam C <ramalingam.c@intel.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180108195545.218615-10-seanpaul@chromium.org |
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README
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.