* [PATCH] dmaengine: bam-dma: fill slave directions bit mask
@ 2015-03-04 15:25 Stanimir Varbanov
2015-03-04 16:02 ` Vinod Koul
2015-03-04 19:23 ` Stephen Boyd
0 siblings, 2 replies; 5+ messages in thread
From: Stanimir Varbanov @ 2015-03-04 15:25 UTC (permalink / raw)
To: Vinod Koul
Cc: Dan Williams, dmaengine, linux-kernel, linux-arm-msm,
Stanimir Varbanov
This will avoid warning during async device registration.
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
---
drivers/dma/qcom_bam_dma.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/dma/qcom_bam_dma.c b/drivers/dma/qcom_bam_dma.c
index c3113e3..cc9e5ee 100644
--- a/drivers/dma/qcom_bam_dma.c
+++ b/drivers/dma/qcom_bam_dma.c
@@ -1143,6 +1143,7 @@ static int bam_dma_probe(struct platform_device *pdev)
dma_cap_set(DMA_SLAVE, bdev->common.cap_mask);
/* initialize dmaengine apis */
+ bdev->common.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
bdev->common.device_alloc_chan_resources = bam_alloc_chan;
bdev->common.device_free_chan_resources = bam_free_chan;
bdev->common.device_prep_slave_sg = bam_prep_slave_sg;
--
1.7.0.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] dmaengine: bam-dma: fill slave directions bit mask
2015-03-04 15:25 [PATCH] dmaengine: bam-dma: fill slave directions bit mask Stanimir Varbanov
@ 2015-03-04 16:02 ` Vinod Koul
2015-03-04 19:44 ` Andy Gross
2015-03-04 19:23 ` Stephen Boyd
1 sibling, 1 reply; 5+ messages in thread
From: Vinod Koul @ 2015-03-04 16:02 UTC (permalink / raw)
To: Stanimir Varbanov; +Cc: Dan Williams, dmaengine, linux-kernel, linux-arm-msm
On Wed, Mar 04, 2015 at 05:25:10PM +0200, Stanimir Varbanov wrote:
> This will avoid warning during async device registration.
>
> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
> ---
> drivers/dma/qcom_bam_dma.c | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/dma/qcom_bam_dma.c b/drivers/dma/qcom_bam_dma.c
> index c3113e3..cc9e5ee 100644
> --- a/drivers/dma/qcom_bam_dma.c
> +++ b/drivers/dma/qcom_bam_dma.c
> @@ -1143,6 +1143,7 @@ static int bam_dma_probe(struct platform_device *pdev)
> dma_cap_set(DMA_SLAVE, bdev->common.cap_mask);
>
> /* initialize dmaengine apis */
> + bdev->common.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
> bdev->common.device_alloc_chan_resources = bam_alloc_chan;
> bdev->common.device_free_chan_resources = bam_free_chan;
> bdev->common.device_prep_slave_sg = bam_prep_slave_sg;
You need to fill other fields, src/dstn_addr_widths and
residue_granularity...
--
~Vinod
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] dmaengine: bam-dma: fill slave directions bit mask
2015-03-04 16:02 ` Vinod Koul
@ 2015-03-04 19:44 ` Andy Gross
2015-03-05 9:44 ` Stanimir Varbanov
0 siblings, 1 reply; 5+ messages in thread
From: Andy Gross @ 2015-03-04 19:44 UTC (permalink / raw)
To: Vinod Koul
Cc: Stanimir Varbanov, Dan Williams, dmaengine, linux-kernel,
linux-arm-msm
On Wed, Mar 04, 2015 at 09:32:13PM +0530, Vinod Koul wrote:
> On Wed, Mar 04, 2015 at 05:25:10PM +0200, Stanimir Varbanov wrote:
> > This will avoid warning during async device registration.
> >
> > Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
> > ---
> > drivers/dma/qcom_bam_dma.c | 1 +
> > 1 files changed, 1 insertions(+), 0 deletions(-)
> >
> > diff --git a/drivers/dma/qcom_bam_dma.c b/drivers/dma/qcom_bam_dma.c
> > index c3113e3..cc9e5ee 100644
> > --- a/drivers/dma/qcom_bam_dma.c
> > +++ b/drivers/dma/qcom_bam_dma.c
> > @@ -1143,6 +1143,7 @@ static int bam_dma_probe(struct platform_device *pdev)
> > dma_cap_set(DMA_SLAVE, bdev->common.cap_mask);
> >
> > /* initialize dmaengine apis */
> > + bdev->common.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
> > bdev->common.device_alloc_chan_resources = bam_alloc_chan;
> > bdev->common.device_free_chan_resources = bam_free_chan;
> > bdev->common.device_prep_slave_sg = bam_prep_slave_sg;
> You need to fill other fields, src/dstn_addr_widths and
> residue_granularity...
Add segment granularity for BAM, as we can read the current completed segment.
bdev->common.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT;
Use DMA_SLAVE_BUSWIDTH_4_BYTES for the src/dst addr width:
bdev->common.src_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES;
bdev->common.dst_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES;
--
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] dmaengine: bam-dma: fill slave directions bit mask
2015-03-04 19:44 ` Andy Gross
@ 2015-03-05 9:44 ` Stanimir Varbanov
0 siblings, 0 replies; 5+ messages in thread
From: Stanimir Varbanov @ 2015-03-05 9:44 UTC (permalink / raw)
To: Andy Gross
Cc: Vinod Koul, Stanimir Varbanov, Dan Williams, dmaengine,
linux-kernel, linux-arm-msm
On 03/04/2015 09:44 PM, Andy Gross wrote:
> On Wed, Mar 04, 2015 at 09:32:13PM +0530, Vinod Koul wrote:
>> On Wed, Mar 04, 2015 at 05:25:10PM +0200, Stanimir Varbanov wrote:
>>> This will avoid warning during async device registration.
>>>
>>> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
>>> ---
>>> drivers/dma/qcom_bam_dma.c | 1 +
>>> 1 files changed, 1 insertions(+), 0 deletions(-)
>>>
>>> diff --git a/drivers/dma/qcom_bam_dma.c b/drivers/dma/qcom_bam_dma.c
>>> index c3113e3..cc9e5ee 100644
>>> --- a/drivers/dma/qcom_bam_dma.c
>>> +++ b/drivers/dma/qcom_bam_dma.c
>>> @@ -1143,6 +1143,7 @@ static int bam_dma_probe(struct platform_device *pdev)
>>> dma_cap_set(DMA_SLAVE, bdev->common.cap_mask);
>>>
>>> /* initialize dmaengine apis */
>>> + bdev->common.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
>>> bdev->common.device_alloc_chan_resources = bam_alloc_chan;
>>> bdev->common.device_free_chan_resources = bam_free_chan;
>>> bdev->common.device_prep_slave_sg = bam_prep_slave_sg;
>> You need to fill other fields, src/dstn_addr_widths and
>> residue_granularity...
>
> Add segment granularity for BAM, as we can read the current completed segment.
> bdev->common.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT;
>
> Use DMA_SLAVE_BUSWIDTH_4_BYTES for the src/dst addr width:
> bdev->common.src_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES;
> bdev->common.dst_addr_widths = DMA_SLAVE_BUSWIDTH_4_BYTES;
>
Thanks Andy, will add those fields too.
--
regards,
Stan
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] dmaengine: bam-dma: fill slave directions bit mask
2015-03-04 15:25 [PATCH] dmaengine: bam-dma: fill slave directions bit mask Stanimir Varbanov
2015-03-04 16:02 ` Vinod Koul
@ 2015-03-04 19:23 ` Stephen Boyd
1 sibling, 0 replies; 5+ messages in thread
From: Stephen Boyd @ 2015-03-04 19:23 UTC (permalink / raw)
To: Stanimir Varbanov, Vinod Koul
Cc: Dan Williams, dmaengine, linux-kernel, linux-arm-msm
On 03/04/15 07:25, Stanimir Varbanov wrote:
> This will avoid warning during async device registration.
>
> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
> ---
Can you please put the warning in the commit log? Also, does this need a
Fixes: tag?
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply [flat|nested] 5+ messages in thread
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2015-03-04 15:25 [PATCH] dmaengine: bam-dma: fill slave directions bit mask Stanimir Varbanov
2015-03-04 16:02 ` Vinod Koul
2015-03-04 19:44 ` Andy Gross
2015-03-05 9:44 ` Stanimir Varbanov
2015-03-04 19:23 ` Stephen Boyd
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