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The rcar crtc depends on the clock provided from the rcar DSI bridge. When the DSI bridge is disabled, the clock is stopped, which causes the crtc disable to timeout. Also, while I have no issue with the enable, the documentation suggests to enable the DSI before the crtc so that the crtc has its clock enabled at enable time. This is also not done by the current driver. To fix this, we need to keep the DSI bridge enabled until the crtc has disabled itself, and enable the DSI bridge before crtc enables itself. Add functions rcar_mipi_dsi_pclk_enable and rcar_mipi_dsi_pclk_disable to the rcar DSI bridge driver which the rcar driver can use to enable/disable the DSI clock when needed. This is similar to what is already done with the rcar LVDS bridge. Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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.