Sai Krishna Potthuri
0516dd6572
pinctrl: pinctrl-zynqmp: Add support for output-enable and bias-high impedance
Add support to handle 'output-enable' and 'bias-high-impedance' configurations. Using these pinctrl properties observed hang issues with older PMUFW(Xilinx ZynqMP Platform Management Firmware), hence reverted the patch. Commit 9989bc33c4894e075167 ("Revert "pinctrl: pinctrl-zynqmp: Add support for output-enable and bias-high-impedance""). Support for configuring these properties added in PMUFW Configuration Set version 2.0. When there is a request for these configurations from pinctrl driver for ZynqMP platform, xilinx firmware driver checks for this version before configuring these properties to avoid the hang issue and proceeds further only when firmware version is >=2 otherwise it returns error. Signed-off-by: Sai Krishna Potthuri <sai.krishna.potthuri@amd.com> Reviewed-by: Michal Simek <michal.simek@amd.com> Link: https://lore.kernel.org/r/20230731095026.3766675-5-sai.krishna.potthuri@amd.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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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