mirror of
https://github.com/hardkernel/linux.git
synced 2026-06-06 02:50:49 +09:00
2c82bf3f17
[ Upstream commit8b3580df15] While the acquired resources are tied to the lifetime of the RPC-IF core device (through the use of managed resource functions), the actual resource acquisition is triggered from the HyperBus and SPI child drivers. Due to this mismatch, unbinding and rebinding the child drivers manually fails with -EBUSY: # echo rpc-if-hyperflash > /sys/bus/platform/drivers/rpc-if-hyperflash/unbind # echo rpc-if-hyperflash > /sys/bus/platform/drivers/rpc-if-hyperflash/bind rpc-if ee200000.spi: can't request region for resource [mem 0xee200000-0xee2001ff] rpc-if-hyperflash: probe of rpc-if-hyperflash failed with error -16 The same is true for rpc-if-spi. Fix this by moving all resource acquisition to the core driver's probe routine. Fixes:ca7d8b980b("memory: add Renesas RPC-IF driver") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/c1012ef1de799e08a70817ab7313794e2d8d7bfb.1669213027.git.geert+renesas@glider.be Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.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.