spi_qsd: support to transfer 64K chunks in DM mode
Support to transfer 64K bytes in a single SPI
transfer in DMA mode on targets which support
16 bits in QUP_MX_OUTPUT_CNT register. Earlier
if the application sends more than 4K data it is
split up in to 4K chunks, irrespective of the size
of the QUP_MX_OUTPUT_CNT register.
CRs-Fixed: 383120
Signed-off-by: Kiran Gunda <kgunda@codeaurora.org>
(cherry picked from commit c5fbd7f2dccf52e95e6c1504a28b19d1dc622028)
Change-Id: Idb27c651e0a81a4efe363feabc44e26c5b61fb0f
Signed-off-by: Sudhir Sharma <sudsha@codeaurora.org>
diff --git a/drivers/spi/spi_qsd.h b/drivers/spi/spi_qsd.h
index b0d72b7..a0dee34 100644
--- a/drivers/spi/spi_qsd.h
+++ b/drivers/spi/spi_qsd.h
@@ -322,6 +322,7 @@
/* SPI CS GPIOs for each slave */
struct spi_cs_gpio cs_gpios[ARRAY_SIZE(spi_cs_rsrcs)];
int qup_ver;
+ int max_trfr_len;
};
/* Forward declaration */