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The synaptics-r63353 (panel-bridge) can only be configured in command mode. So, samsung-dsim (bridge) must not be in display mode during the prepare()/unprepare() of the panel-bridge. Setting the "pre_enable_prev_first" flag to true allows the prepare() of the panel-bridge to be called between the pre_enabled() and enabled() of the bridge. So, the bridge can enter display mode only in the enabled(). The unprepare() of the panel-bridge is instead called between the disable() and post_disable() of the bridge. So, the disable() must exit the display mode (i .e. enter command mode) to allow the panel-bridge to receive DSI commands. samsung_dsim_atomic_pre_enable -> command mode r63353_panel_prepare -> send DSI commands samsung_dsim_atomic_enable -> enter display mode samsung_dsim_atomic_disable -> exit display mode (command mode) r63353_panel_unprepare -> send DSI commands samsung_dsim_atomic_post_disable Co-developed-by: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> Reviewed-by: Robert Foss <rfoss@kernel.org> Signed-off-by: Robert Foss <rfoss@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231218084354.508942-2-dario.binacchi@amarulasolutions.com |
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| README | ||
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.