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Before commit7f84caccd0("PCI: dw: rockchip: Define IO and Host initialization interfaces"), ret is getting from rk_pcie_disable_power() which should never fail actually. Now the final ret is getting from phy_validate() which could return -EOPNOTSUPP. But we didn't care about it if phy_validate() isn't implemented. So we see: [ 13.573777] rk-pcie fe150000.pcie: PM: dpm_run_callback(): genpd_suspend_noirq+0x0/0x60 returns -95 [ 13.573800] rk-pcie fe150000.pcie: PM: failed to suspend async: error -95 Fix it by return zero to restore the previous behaviour. Fixes:7f84caccd0("PCI: dw: rockchip: Define IO and Host initialization interfaces") Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Change-Id: I0c7c858937272f2b09ba4ae79c0a68c7a633ced0
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.