avr32: function for independently setting up SPI slaves
at32ap_spi_setup_slaves() is exposed to allow the addition of SPI slaves
to a SPI bus that has already been registered. This is especially
useful for add-on cards, which have their own board setup function.
at32ap_spi_add_device() has been slightly re-organized, but should be
transparent to existing users.
So to add a SPI slave, after a SPI bus has already been registered:
/* Configure the list of slaves on SPI controller "id" */
at32_spi_setup_slaves(id,spi_board_info,ARRAY_SIZE(spi_board_info));
/* Register the list of slaves */
spi_register_board_info(spi_board_info,ARRAY_SIZE(spi_board_info));
Signed-off-by: Peter Ma <pma@mediamatech.com>
[haavard.skinnemoen@atmel.com: trivial whitespace fix]
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
diff --git a/arch/avr32/mach-at32ap/include/mach/board.h b/arch/avr32/mach-at32ap/include/mach/board.h
index ddedb47..c7f25bb 100644
--- a/arch/avr32/mach-at32ap/include/mach/board.h
+++ b/arch/avr32/mach-at32ap/include/mach/board.h
@@ -49,6 +49,7 @@
struct spi_board_info;
struct platform_device *
at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n);
+void at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b, unsigned int n);
struct atmel_lcdfb_info;
struct platform_device *