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spi: Document cs_gpios and cs_gpio in kernel-doc

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This adds missing kernel-doc entries for cs_gpios in struct spi_master and
cs_gpio in struct spi_device.

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
[grant.likely: tweaked the language of the descriptions]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Andreas Larsson 2013-01-29 15:53:41 +01:00 • committed by Grant Likely
parent 0da83bb1c9
commit 095c3752e6
1 changed files with 5 additions and 0 deletions
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5
include/linux/spi/spi.h
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@ -57,6 +57,8 @@ extern struct bus_type spi_bus_type;
* @modalias: Name of the driver to use with this device, or an alias * @modalias: Name of the driver to use with this device, or an alias
* for that name. This appears in the sysfs "modalias" attribute * for that name. This appears in the sysfs "modalias" attribute
* for driver coldplugging, and in uevents used for hotplugging * for driver coldplugging, and in uevents used for hotplugging
* @cs_gpio: gpio number of the chipselect line (optional, -EINVAL when
* when not using a GPIO line)
* *
* A @spi_device is used to interchange data between an SPI slave * A @spi_device is used to interchange data between an SPI slave
* (usually a discrete chip) and CPU memory. * (usually a discrete chip) and CPU memory.
@ -258,6 +260,9 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
* @unprepare_transfer_hardware: there are currently no more messages on the * @unprepare_transfer_hardware: there are currently no more messages on the
* queue so the subsystem notifies the driver that it may relax the * queue so the subsystem notifies the driver that it may relax the
* hardware by issuing this call * hardware by issuing this call
* @cs_gpios: Array of GPIOs to use as chip select lines; one per CS
* number. Any individual value may be -EINVAL for CS lines that
* are not GPIOs (driven by the SPI controller itself).
* *
* Each SPI master controller can communicate with one or more @spi_device * Each SPI master controller can communicate with one or more @spi_device
* children. These make a small bus, sharing MOSI, MISO and SCK signals * children. These make a small bus, sharing MOSI, MISO and SCK signals