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.
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Frank Oltmanns
authored
Fix flickering of the pinephone's XDB599 panel that happens after resume. Extend the delay after issuing the command to exit sleep mode from 60 to 120 msec as per the controller's specification. Introduce a 120 msec delay after issuing the command to enter sleep mode. This is needed in order for the controller to reliably finalize the sleep in sequence before switching of power supply. In contrast to the JH057N panel, the XBD599 panel does not require a 20 msec delay after initialization and exiting sleep mode. Therefore, move the delay into the already existing device specific initialization function. The XDB599 does not require a 20 msec delay between the SETBGP and SETVCOM commands. Therefore, remove the delay from the device specific initialization function. Signed-off-by:Frank Oltmanns <frank@oltmanns.dev> Cc: Ondrej Jirman <megi@xff.cz> Reported-by:
Samuel Holland <samuel@sholland.org> Reviewed-by:
Guido Günther <agx@sigxcpu.org> Tested-by:
Guido Günther <agx@sigxcpu.org> Signed-off-by:
Guido Günther <agx@sigxcpu.org> Link: https://patchwork.freedesktop.org/patch/msgid/20230213123238.76889-2-frank@oltmanns.dev