The patch titled
Blackfin SPI Driver: add comment about full duplex dma according to David Brownell
has been added to the -mm tree. Its filename is
blackfin-spi-driver-add-comment-about-full-duplex-dma-according-to-david-brownell.patch
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------------------------------------------------------
Subject: Blackfin SPI Driver: add comment about full duplex dma according to David Brownell
From: Mike Frysinger <vapier.adi@xxxxxxxxx>
Signed-off-by: Mike Frysinger <vapier.adi@xxxxxxxxx>
Signed-off-by: Bryan Wu <cooloney@xxxxxxxxxx>
Cc: David Brownell <david-b@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/spi/spi_bfin5xx.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff -puN drivers/spi/spi_bfin5xx.c~blackfin-spi-driver-add-comment-about-full-duplex-dma-according-to-david-brownell drivers/spi/spi_bfin5xx.c
--- a/drivers/spi/spi_bfin5xx.c~blackfin-spi-driver-add-comment-about-full-duplex-dma-according-to-david-brownell
+++ a/drivers/spi/spi_bfin5xx.c
@@ -738,9 +738,10 @@ static void pump_transfers(unsigned long
width, transfer->len);
/*
- * Try to map dma buffer and do a dma transfer if
- * successful use different way to r/w according to
- * drv_data->cur_chip->enable_dma
+ * Try to map dma buffer and do a dma transfer. If successful use,
+ * different way to r/w according to the enable_dma settings and if
+ * we are not doing a full duplex transfer (since the hardware does
+ * not support full duplex DMA transfers).
*/
if (!full_duplex && drv_data->cur_chip->enable_dma
&& drv_data->len > 6) {
_
Patches currently in -mm which might be from vapier.adi@xxxxxxxxx are
origin.patch
video-framebuffer-move-the-probe-func-into-devinittext-in-blackfin-lcd-driver.patch
linux-next.patch
blackfin-nfc-driver-do-not-clobber-dmac1_perimux.patch
blackfin-nfc-driver-mark-bf5xx_nand_add_partition-as-__devinit.patch
blackfin-nfc-driver-drop-pointless-casts-with-set_dma_callback.patch
mtd-maps-blackfin-async-flash-maps-fix-bug-dont-leak-resources-when-initializing-in-case-of-errors.patch
mtd-maps-blackfin-async-flash-maps-bfin-async-mtd-driver-needs-complex-mappings.patch
mtd-maps-blackfin-async-flash-maps-fix-up-memory-leak.patch
blackfin-spi-driver-add-comment-about-full-duplex-dma-according-to-david-brownell.patch
blackfin-spi-driver-fix-null-pointer-crash.patch
bin_elf_fdpic-check-the-return-value-of-clear_user.patch
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