[Patch] Add spi full duplex mode transfer support

Hi all,

  To enable full duplex mode spi transfer in Blackfin spi master
driver, I need an extra field in spi_transfer structure. Attached the
right format patch.

Signed-off-by: Luke Yang <[email protected]>

spi.h |    1 +
1 files changed, 1 insertion(+)

diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index c8bb680..99816eb 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -331,6 +331,7 @@ struct spi_transfer {
       dma_addr_t      rx_dma;

       unsigned        cs_change:1;
+       unsigned        is_duplex:1;
       u8              bits_per_word;
       u16             delay_usecs;
       u32             speed_hz;

--
Best regards,
Luke Yang
[email protected]

diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index c8bb680..99816eb 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -331,6 +331,7 @@ struct spi_transfer {
 	dma_addr_t	rx_dma;
 
 	unsigned	cs_change:1;
+	unsigned        is_duplex:1;
 	u8		bits_per_word;
 	u16		delay_usecs;
 	u32		speed_hz;

---

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