Merge remote-tracking branches 'spi/topic/acpi', 'spi/topic/axi-engine', 'spi/topic...

[cascardo/linux.git] / include / linux / spi / spi.h

diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index ba0dee9..199b042 100644 (file)
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -372,6 +372,9 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
  * @dma_rx: DMA receive channel
  * @dummy_rx: dummy receive buffer for full-duplex devices
  * @dummy_tx: dummy transmit buffer for full-duplex devices
+ * @fw_translate_cs: If the boot firmware uses different numbering scheme
+ *     what Linux expects, this optional hook can be used to translate
+ *     between the two.
  *
  * Each SPI master controller can communicate with one or more @spi_device
  * children.  These make a small bus, sharing MOSI, MISO and SCK signals
@@ -542,6 +545,8 @@ struct spi_master {
        /* dummy data for full duplex devices */
        void                    *dummy_rx;
        void                    *dummy_tx;
+
+       int (*fw_translate_cs)(struct spi_master *master, unsigned cs);
 };
 
 static inline void *spi_master_get_devdata(struct spi_master *master)