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| author | Feng Tang <feng.tang@intel.com> | 2010-08-02 15:52:15 +0800 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2010-10-21 23:52:16 -0600 |
| commit | 2b9603a0d7e395fb844af90fba71448bc8019077 (patch) | |
| tree | b828ff7c6819766e92dd304eb5e63e12527e516a /include/linux/spi | |
| parent | d4429f608abde89e8bc1e24b43cd503feb95c496 (diff) | |
| download | op-kernel-dev-2b9603a0d7e395fb844af90fba71448bc8019077.zip op-kernel-dev-2b9603a0d7e395fb844af90fba71448bc8019077.tar.gz | |
spi: enable spi_board_info to be registered after spi_master
Currently spi_register_board_info() has to be called before its related
spi_master be registered, otherwise these board info will be just ignored.
This patch will remove this order limit, it adds a global spi master list
like the existing global board info listr. Whenever a board info or a
spi_master is registered, the spi master list or board info list
will be scanned, and a new spi device will be created if there is a
master-board info match.
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'include/linux/spi')
| -rw-r--r-- | include/linux/spi/spi.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 92e52a1..b4d7710 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -204,6 +204,7 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) /** * struct spi_master - interface to SPI master controller * @dev: device interface to this driver + * @list: link with the global spi_master list * @bus_num: board-specific (and often SOC-specific) identifier for a * given SPI controller. * @num_chipselect: chipselects are used to distinguish individual @@ -238,6 +239,8 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) struct spi_master { struct device dev; + struct list_head list; + /* other than negative (== assign one dynamically), bus_num is fully * board-specific. usually that simplifies to being SOC-specific. * example: one SOC has three SPI controllers, numbered 0..2, |
