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The spinlock is only used to serialize accesses to the DC_CMD_INT_MASK register. However, this register is accesses either with interrupts masked (in tegra_crtc_atomic_enable()) or protected by the vbl_lock and vblank_time_lock spinlocks of the DRM device. Therefore, these accesses don't need any extra serialization and the lock can be removed. Signed-off-by: Thierry Reding <treding@nvidia.com>
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.