From 2b9603a0d7e395fb844af90fba71448bc8019077 Mon Sep 17 00:00:00 2001 From: Feng Tang Date: Mon, 2 Aug 2010 15:52:15 +0800 Subject: 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 Signed-off-by: Grant Likely --- include/linux/spi/spi.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux/spi') 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, -- cgit v1.1