Merge branch 'master' into for-next

3 files changed, 17 insertions, 19 deletions

diff --git a/include/linux/spi/74x164.h b/include/linux/spi/74x164.h
deleted file mode 100644
index 0aa6acc73317..000000000000
--- a/include/linux/spi/74x164.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef LINUX_SPI_74X164_H
-#define LINUX_SPI_74X164_H
-
-struct gen_74x164_chip_platform_data {
-        /* number assigned to the first GPIO */
-        unsigned        base;
-};
-
-#endif
diff --git a/include/linux/spi/s3c24xx.h b/include/linux/spi/s3c24xx.h
index c23b923e493b..ca271c06c591 100644
--- a/include/linux/spi/s3c24xx.h
+++ b/include/linux/spi/s3c24xx.h
@@ -23,4 +23,6 @@ struct s3c2410_spi_info {
         void (*set_cs)(struct s3c2410_spi_info *spi, int cs, int pol);
 };
 
+extern int s3c24xx_set_fiq(unsigned int irq, bool on);
+
 #endif /* __LINUX_SPI_S3C24XX_H */
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 8d3a37bc6110..2c9cdef0598f 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -75,6 +75,7 @@ struct spi_device {
         struct spi_master       *master;
         u32                     max_speed_hz;
         u8                      chip_select;
+        u8                      bits_per_word;
         u16                     mode;
 #define SPI_CPHA        0x01                    /* clock phase */
 #define SPI_CPOL        0x02                    /* clock polarity */
@@ -92,7 +93,6 @@ struct spi_device {
 #define SPI_TX_QUAD     0x200                   /* transmit with 4 wires */
 #define SPI_RX_DUAL     0x400                   /* receive with 2 wires */
 #define SPI_RX_QUAD     0x800                   /* receive with 4 wires */
-        u8                      bits_per_word;
         int                     irq;
         void                    *controller_state;
         void                    *controller_data;
@@ -273,19 +273,24 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
  *      message while queuing transfers that arrive in the meantime. When the
  *      driver is finished with this message, it must call
  *      spi_finalize_current_message() so the subsystem can issue the next
- *      transfer
+ *      message
  * @unprepare_transfer_hardware: there are currently no more messages on the
  *      queue so the subsystem notifies the driver that it may relax the
  *      hardware by issuing this call
- * @set_cs: assert or deassert chip select, true to assert.  May be called
+ * @set_cs: set the logic level of the chip select line.  May be called
  *          from interrupt context.
  * @prepare_message: set up the controller to transfer a single message,
  *                   for example doing DMA mapping.  Called from threaded
  *                   context.
- * @transfer_one: transfer a single spi_transfer. When the
- *                driver is finished with this transfer it must call
- *                spi_finalize_current_transfer() so the subsystem can issue
- *                the next transfer
+ * @transfer_one: transfer a single spi_transfer.
+ *                  - return 0 if the transfer is finished,
+ *                  - return 1 if the transfer is still in progress. When
+ *                    the driver is finished with this transfer it must
+ *                    call spi_finalize_current_transfer() so the subsystem
+ *                    can issue the next transfer. Note: transfer_one and
+ *                    transfer_one_message are mutually exclusive; when both
+ *                    are set, the generic subsystem does not call your
+ *                    transfer_one callback.
  * @unprepare_message: undo any work done by prepare_message().
  * @cs_gpios: Array of GPIOs to use as chip select lines; one per CS
  *      number. Any individual value may be -ENOENT for CS lines that
@@ -576,8 +581,8 @@ struct spi_transfer {
         dma_addr_t      rx_dma;
 
         unsigned        cs_change:1;
-        u8              tx_nbits;
-        u8              rx_nbits;
+        unsigned        tx_nbits:3;
+        unsigned        rx_nbits:3;
 #define SPI_NBITS_SINGLE        0x01 /* 1bit transfer */
 #define SPI_NBITS_DUAL          0x02 /* 2bits transfer */
 #define SPI_NBITS_QUAD          0x04 /* 4bits transfer */
@@ -847,7 +852,7 @@ static inline ssize_t spi_w8r16(struct spi_device *spi, u8 cmd)
         ssize_t                 status;
         u16                     result;
 
-        status = spi_write_then_read(spi, &cmd, 1, (u8 *) &result, 2);
+        status = spi_write_then_read(spi, &cmd, 1, &result, 2);
 
         /* return negative errno or unsigned value */
         return (status < 0) ? status : result;