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35700e221b
In case of -EPROBE_DEFER, stm32_qspi_release() was called
in any case which unregistered driver from pm_runtime framework
even if it has not been registered yet to it. This leads to:
stm32-qspi 58003000.spi: can't setup spi0.0, status -13
spi_master spi0: spi_device register error /soc/spi@58003000/mx66l51235l@0
spi_master spi0: Failed to create SPI device for /soc/spi@58003000/mx66l51235l@0
stm32-qspi 58003000.spi: can't setup spi0.1, status -13
spi_master spi0: spi_device register error /soc/spi@58003000/mx66l51235l@1
spi_master spi0: Failed to create SPI device for /soc/spi@58003000/mx66l51235l@1
On v5.7 kernel,this issue was not "visible", qspi driver was probed
successfully.
Fixes: 9d282c17b0 ("spi: stm32-qspi: Add pm_runtime support")
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Link: https://lore.kernel.org/r/20200616113035.4514-1-patrice.chotard@st.com
Signed-off-by: Mark Brown <broonie@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.