* [PATCH v2] dmaengine: stm32-mdma: Revert "Add a check on read_u32_array"
@ 2019-03-25 16:21 Pierre-Yves MORDRET
2019-03-25 16:28 ` Vinod Koul
0 siblings, 1 reply; 3+ messages in thread
From: Pierre-Yves MORDRET @ 2019-03-25 16:21 UTC (permalink / raw)
To: Dan Williams, Vinod Koul, Maxime Coquelin, Alexandre Torgue,
dmaengine, linux-stm32, linux-arm-kernel, linux-kernel
Cc: Pierre-Yves MORDRET
This reverts commit 906b40b246b0 ("Add a check on read_u32_array")
As stated by bindings "st,ahb-addr-masks" is optional.
The statement inserted by this commit makes this property
mandatory and prevents MDMA to be probed in case property not present.
Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
---
Version history:
v2:
* review commit message
v1:
* Initial
---
---
drivers/dma/stm32-mdma.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c
index 4e0eede..ac0301b 100644
--- a/drivers/dma/stm32-mdma.c
+++ b/drivers/dma/stm32-mdma.c
@@ -1578,11 +1578,9 @@ static int stm32_mdma_probe(struct platform_device *pdev)
dmadev->nr_channels = nr_channels;
dmadev->nr_requests = nr_requests;
- ret = device_property_read_u32_array(&pdev->dev, "st,ahb-addr-masks",
+ device_property_read_u32_array(&pdev->dev, "st,ahb-addr-masks",
dmadev->ahb_addr_masks,
count);
- if (ret)
- return ret;
dmadev->nr_ahb_addr_masks = count;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
--
2.7.4
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^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v2] dmaengine: stm32-mdma: Revert "Add a check on read_u32_array"
2019-03-25 16:21 [PATCH v2] dmaengine: stm32-mdma: Revert "Add a check on read_u32_array" Pierre-Yves MORDRET
@ 2019-03-25 16:28 ` Vinod Koul
2019-03-26 8:55 ` Pierre Yves MORDRET
0 siblings, 1 reply; 3+ messages in thread
From: Vinod Koul @ 2019-03-25 16:28 UTC (permalink / raw)
To: Pierre-Yves MORDRET
Cc: Alexandre Torgue, linux-kernel, Maxime Coquelin, dmaengine,
Dan Williams, linux-stm32, linux-arm-kernel
On 25-03-19, 17:21, Pierre-Yves MORDRET wrote:
> This reverts commit 906b40b246b0 ("Add a check on read_u32_array")
This and patch title should contain:
906b40b246b0 ("dmaengine: stm32-mdma: Add a check on read_u32_array")
I have fixed it up and applied.
Thanks
> As stated by bindings "st,ahb-addr-masks" is optional.
> The statement inserted by this commit makes this property
> mandatory and prevents MDMA to be probed in case property not present.
>
> Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
> ---
> Version history:
> v2:
> * review commit message
> v1:
> * Initial
> ---
> ---
> drivers/dma/stm32-mdma.c | 4 +---
> 1 file changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c
> index 4e0eede..ac0301b 100644
> --- a/drivers/dma/stm32-mdma.c
> +++ b/drivers/dma/stm32-mdma.c
> @@ -1578,11 +1578,9 @@ static int stm32_mdma_probe(struct platform_device *pdev)
>
> dmadev->nr_channels = nr_channels;
> dmadev->nr_requests = nr_requests;
> - ret = device_property_read_u32_array(&pdev->dev, "st,ahb-addr-masks",
> + device_property_read_u32_array(&pdev->dev, "st,ahb-addr-masks",
> dmadev->ahb_addr_masks,
> count);
> - if (ret)
> - return ret;
> dmadev->nr_ahb_addr_masks = count;
>
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> --
> 2.7.4
--
~Vinod
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v2] dmaengine: stm32-mdma: Revert "Add a check on read_u32_array"
2019-03-25 16:28 ` Vinod Koul
@ 2019-03-26 8:55 ` Pierre Yves MORDRET
0 siblings, 0 replies; 3+ messages in thread
From: Pierre Yves MORDRET @ 2019-03-26 8:55 UTC (permalink / raw)
To: Vinod Koul
Cc: Alexandre Torgue, linux-kernel, Maxime Coquelin, dmaengine,
Dan Williams, linux-stm32, linux-arm-kernel
On 3/25/19 5:28 PM, Vinod Koul wrote:
> On 25-03-19, 17:21, Pierre-Yves MORDRET wrote:
>> This reverts commit 906b40b246b0 ("Add a check on read_u32_array")
>
> This and patch title should contain:
> 906b40b246b0 ("dmaengine: stm32-mdma: Add a check on read_u32_array")
>
> I have fixed it up and applied.
Darn it, sorry.
Many thanks btw :)
>
> Thanks
>
>> As stated by bindings "st,ahb-addr-masks" is optional.
>> The statement inserted by this commit makes this property
>> mandatory and prevents MDMA to be probed in case property not present.
>>
>> Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
>> ---
>> Version history:
>> v2:
>> * review commit message
>> v1:
>> * Initial
>> ---
>> ---
>> drivers/dma/stm32-mdma.c | 4 +---
>> 1 file changed, 1 insertion(+), 3 deletions(-)
>>
>> diff --git a/drivers/dma/stm32-mdma.c b/drivers/dma/stm32-mdma.c
>> index 4e0eede..ac0301b 100644
>> --- a/drivers/dma/stm32-mdma.c
>> +++ b/drivers/dma/stm32-mdma.c
>> @@ -1578,11 +1578,9 @@ static int stm32_mdma_probe(struct platform_device *pdev)
>>
>> dmadev->nr_channels = nr_channels;
>> dmadev->nr_requests = nr_requests;
>> - ret = device_property_read_u32_array(&pdev->dev, "st,ahb-addr-masks",
>> + device_property_read_u32_array(&pdev->dev, "st,ahb-addr-masks",
>> dmadev->ahb_addr_masks,
>> count);
>> - if (ret)
>> - return ret;
>> dmadev->nr_ahb_addr_masks = count;
>>
>> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>> --
>> 2.7.4
>
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2019-03-25 16:21 [PATCH v2] dmaengine: stm32-mdma: Revert "Add a check on read_u32_array" Pierre-Yves MORDRET
2019-03-25 16:28 ` Vinod Koul
2019-03-26 8:55 ` Pierre Yves MORDRET
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