* [PATCH] spi: spi-imx: use correct enumeration type
@ 2015-03-02 23:28 ` Stefan Agner
0 siblings, 0 replies; 4+ messages in thread
From: Stefan Agner @ 2015-03-02 23:28 UTC (permalink / raw)
To: broonie; +Cc: linux-spi, linux-kernel, llvmlinux, stefan
The fourth argument of dmaengine_prep_slave_sg needs to be of the
enumeration type dma_transfer_direction instead of dma_data_direction.
Since the used enumeration values actually stay the same, this is not
an actual issue at runtime.
Signed-off-by: Stefan Agner <stefan@agner.ch>
---
This showed up when I tried using LLVM/clang to build a kernel for
a Freescale Vybrid based board.
drivers/spi/spi-imx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 961b97d..220f566 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -899,7 +899,7 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
if (tx) {
desc_tx = dmaengine_prep_slave_sg(master->dma_tx,
- tx->sgl, tx->nents, DMA_TO_DEVICE,
+ tx->sgl, tx->nents, DMA_MEM_TO_DEV,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
if (!desc_tx)
goto no_dma;
@@ -911,7 +911,7 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
if (rx) {
desc_rx = dmaengine_prep_slave_sg(master->dma_rx,
- rx->sgl, rx->nents, DMA_FROM_DEVICE,
+ rx->sgl, rx->nents, DMA_DEV_TO_MEM,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
if (!desc_rx)
goto no_dma;
--
2.3.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH] spi: spi-imx: use correct enumeration type
@ 2015-03-02 23:28 ` Stefan Agner
0 siblings, 0 replies; 4+ messages in thread
From: Stefan Agner @ 2015-03-02 23:28 UTC (permalink / raw)
To: broonie-DgEjT+Ai2ygdnm+yROfE0A
Cc: linux-spi-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA,
llvmlinux-cunTk1MwBs98uUxBSJOaYoYkZiVZrdSR2LY78lusg7I,
stefan-XLVq0VzYD2Y
The fourth argument of dmaengine_prep_slave_sg needs to be of the
enumeration type dma_transfer_direction instead of dma_data_direction.
Since the used enumeration values actually stay the same, this is not
an actual issue at runtime.
Signed-off-by: Stefan Agner <stefan-XLVq0VzYD2Y@public.gmane.org>
---
This showed up when I tried using LLVM/clang to build a kernel for
a Freescale Vybrid based board.
drivers/spi/spi-imx.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 961b97d..220f566 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -899,7 +899,7 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
if (tx) {
desc_tx = dmaengine_prep_slave_sg(master->dma_tx,
- tx->sgl, tx->nents, DMA_TO_DEVICE,
+ tx->sgl, tx->nents, DMA_MEM_TO_DEV,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
if (!desc_tx)
goto no_dma;
@@ -911,7 +911,7 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx,
if (rx) {
desc_rx = dmaengine_prep_slave_sg(master->dma_rx,
- rx->sgl, rx->nents, DMA_FROM_DEVICE,
+ rx->sgl, rx->nents, DMA_DEV_TO_MEM,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
if (!desc_rx)
goto no_dma;
--
2.3.0
--
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^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] spi: spi-imx: use correct enumeration type
@ 2015-03-03 9:58 ` Mark Brown
0 siblings, 0 replies; 4+ messages in thread
From: Mark Brown @ 2015-03-03 9:58 UTC (permalink / raw)
To: Stefan Agner; +Cc: linux-spi, linux-kernel, llvmlinux
[-- Attachment #1: Type: text/plain, Size: 323 bytes --]
On Tue, Mar 03, 2015 at 12:28:31AM +0100, Stefan Agner wrote:
> The fourth argument of dmaengine_prep_slave_sg needs to be of the
> enumeration type dma_transfer_direction instead of dma_data_direction.
> Since the used enumeration values actually stay the same, this is not
> an actual issue at runtime.
Applied, thanks.
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 473 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] spi: spi-imx: use correct enumeration type
@ 2015-03-03 9:58 ` Mark Brown
0 siblings, 0 replies; 4+ messages in thread
From: Mark Brown @ 2015-03-03 9:58 UTC (permalink / raw)
To: Stefan Agner
Cc: linux-spi-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA,
llvmlinux-cunTk1MwBs98uUxBSJOaYoYkZiVZrdSR2LY78lusg7I
[-- Attachment #1: Type: text/plain, Size: 323 bytes --]
On Tue, Mar 03, 2015 at 12:28:31AM +0100, Stefan Agner wrote:
> The fourth argument of dmaengine_prep_slave_sg needs to be of the
> enumeration type dma_transfer_direction instead of dma_data_direction.
> Since the used enumeration values actually stay the same, this is not
> an actual issue at runtime.
Applied, thanks.
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 473 bytes --]
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2015-03-03 9:58 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2015-03-02 23:28 [PATCH] spi: spi-imx: use correct enumeration type Stefan Agner
2015-03-02 23:28 ` Stefan Agner
2015-03-03 9:58 ` Mark Brown
2015-03-03 9:58 ` Mark Brown
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