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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-02-12 09:11:24 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-02-12 09:11:24 -0800 |
| commit | 7df4d0c9784117f7bbaec17e9ac7f6545049b56d (patch) | |
| tree | d74ce8205b4d3ab1f6b899bbdb20e8a84740bf8b /include | |
| parent | 641f832c73babf0405c7afb41c8bfed999ebbad7 (diff) | |
| parent | cf20662db4dfade737015036fa9c63e888350c82 (diff) | |
Merge tag 'spi-v3.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few driver and documentation fixes, plus a fix for double error
handling which had crept in due to the confusing documentation - it
wasn't clear if the core or the driver was responsible for cleanup in
error cases so both tried to do it with unfortunate results"
* tag 'spi-v3.14-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: nuc900: Set SPI_LSB_FIRST for master->mode_bits if hw->pdata->lsb is true
spi: rspi: Document support for Renesas QSPI in Kconfig
spi: Fix crash with double message finalisation on error handling
spi: correct the transfer_one_message documentation wording
spi: document the transfer_one spi_master callback
spi: spi.h: clarify the documentation of transfer_one
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/spi/spi.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index a1d4ca29086..4203c66d880 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -273,7 +273,7 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * message while queuing transfers that arrive in the meantime. When the * driver is finished with this message, it must call * spi_finalize_current_message() so the subsystem can issue the next - * transfer + * message * @unprepare_transfer_hardware: there are currently no more messages on the * queue so the subsystem notifies the driver that it may relax the * hardware by issuing this call @@ -287,7 +287,10 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * - return 1 if the transfer is still in progress. When * the driver is finished with this transfer it must * call spi_finalize_current_transfer() so the subsystem - * can issue the next transfer + * can issue the next transfer. Note: transfer_one and + * transfer_one_message are mutually exclusive; when both + * are set, the generic subsystem does not call your + * transfer_one callback. * @unprepare_message: undo any work done by prepare_message(). * @cs_gpios: Array of GPIOs to use as chip select lines; one per CS * number. Any individual value may be -ENOENT for CS lines that |