92bcaddea3
spilib is used by multiple users currently (spi.c and fw-core.c) but
commit aa52b62a0556 broke that hierarchy and introduced gbphy dependent
code in spilib.
This may have unreliable consequences as we are doing following
operation unconditionally now:
gbphy_dev = to_gbphy_dev(spi->parent);
gbphy_runtime_get_sync(gbphy_dev);
which may not go well when the parent is of type &bundle->dev
(fw-core.c).
This patch introduces spilib_ops and lets the users of the core register
them. This shall have no functional change for the spi.c usecase and
shall fix the unreliable results for the fw-core.c usecase.
Tested by writing to mtd0 dev and verifying (with print messages) that
the below routines are getting called for a gpbridge-test module.
Fixes: aa52b62a0556 ("spi: Add runtime_pm support")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
25 lines
544 B
C
25 lines
544 B
C
/*
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* Greybus SPI library header
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*
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* copyright 2016 google inc.
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* copyright 2016 linaro ltd.
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*
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* released under the gplv2 only.
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*/
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#ifndef __SPILIB_H
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#define __SPILIB_H
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struct device;
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struct gb_connection;
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struct spilib_ops {
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int (*prepare_transfer_hardware)(struct device *dev);
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void (*unprepare_transfer_hardware)(struct device *dev);
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};
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int gb_spilib_master_init(struct gb_connection *connection, struct device *dev, struct spilib_ops *ops);
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void gb_spilib_master_exit(struct gb_connection *connection);
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#endif /* __SPILIB_H */
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