68e2f64ee4
This adds all the OSD configuration plumbing to support the AFBC decoders path to display of the OSD1 plane. The Amlogic GXM and G12A AFBC decoders are integrated very differently. The Amlogic GXM has a direct output path to the OSD1 VIU pixel input, because the GXM AFBC decoder seem to be a custom IP developed by Amlogic. On the other side, the Amlogic G12A AFBC decoder seems to be an external IP that emit pixels on an AXI master hooked to a "Mali Unpack" block feeding the OSD1 VIU pixel input. This uses a weird "0x1000000" internal HW physical address on both sides to transfer the pixels. For Amlogic GXM, the supported pixel formats are the same as the normal linear OSD1 mode. On the other side, Amlogic added support for all AFBC v1.2 formats for the G12A AFBC integration. For simplicity, we stick to the already supported formats for now. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191021091509.3864-7-narmstrong@baylibre.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.