Re: [PATCH 3/6] dma: tegra: fix incorrect case of DMA

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On 07.11.2018 11:27, Ben Dooks wrote:
> 
> 
> On 2018-11-06 13:14, Dmitry Osipenko wrote:
>> On 31.10.2018 19:03, Ben Dooks wrote:
>>> The use of Dma is annoying, since it is an acronym so should be all
>>> upper case. Fix this throughout the driver.
>>>
>>> Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
>>> ---
>>>  drivers/dma/tegra20-apb-dma.c | 14 +++++++-------
>>>  1 file changed, 7 insertions(+), 7 deletions(-)
>>>
>>> diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
>>> index adfd918baedc..4f7d1e576d03 100644
>>> --- a/drivers/dma/tegra20-apb-dma.c
>>> +++ b/drivers/dma/tegra20-apb-dma.c
>>> @@ -146,7 +146,7 @@ struct tegra_dma_channel_regs {
>>>  };
>>>
>>>  /*
>>> - * tegra_dma_sg_req: Dma request details to configure hardware. This
>>> + * tegra_dma_sg_req: DMA request details to configure hardware. This
>>>   * contains the details for one transfer to configure DMA hw.
>>>   * The client's request for data transfer can be broken into multiple
>>>   * sub-transfer as per requester details and hw support.
>>> @@ -574,7 +574,7 @@ static bool handle_continuous_head_request(struct tegra_dma_channel *tdc,
>>>      struct tegra_dma_sg_req *hsgreq = NULL;
>>>
>>>      if (list_empty(&tdc->pending_sg_req)) {
>>> -        dev_err(tdc2dev(tdc), "Dma is running without req\n");
>>> +        dev_err(tdc2dev(tdc), "DMA is running without req\n");
>>>          tegra_dma_stop(tdc);
>>>          return false;
>>>      }
>>> @@ -922,7 +922,7 @@ static int get_transfer_param(struct tegra_dma_channel *tdc,
>>>          return 0;
>>>
>>>      default:
>>> -        dev_err(tdc2dev(tdc), "Dma direction is not supported\n");
>>> +        dev_err(tdc2dev(tdc), "DMA direction is not supported\n");
>>>          return -EINVAL;
>>>      }
>>>      return -EINVAL;
>>> @@ -988,7 +988,7 @@ static struct dma_async_tx_descriptor *tegra_dma_prep_slave_sg(
>>>
>>>      dma_desc = tegra_dma_desc_get(tdc);
>>>      if (!dma_desc) {
>>> -        dev_err(tdc2dev(tdc), "Dma descriptors not available\n");
>>> +        dev_err(tdc2dev(tdc), "DMA descriptors not available\n");
>>>          return NULL;
>>>      }
>>>      INIT_LIST_HEAD(&dma_desc->tx_list);
>>> @@ -1008,14 +1008,14 @@ static struct dma_async_tx_descriptor *tegra_dma_prep_slave_sg(
>>>          if ((len & 3) || (mem & 3) ||
>>>                  (len > tdc->tdma->chip_data->max_dma_count)) {
>>>              dev_err(tdc2dev(tdc),
>>> -                "Dma length/memory address is not supported\n");
>>> +                "DMA length/memory address is not supported\n");
>>>              tegra_dma_desc_put(tdc, dma_desc);
>>>              return NULL;
>>>          }
>>>
>>>          sg_req = tegra_dma_sg_req_get(tdc);
>>>          if (!sg_req) {
>>> -            dev_err(tdc2dev(tdc), "Dma sg-req not available\n");
>>> +            dev_err(tdc2dev(tdc), "DMA sg-req not available\n");
>>>              tegra_dma_desc_put(tdc, dma_desc);
>>>              return NULL;
>>>          }
>>> @@ -1147,7 +1147,7 @@ static struct dma_async_tx_descriptor *tegra_dma_prep_dma_cyclic(
>>>      while (remain_len) {
>>>          sg_req = tegra_dma_sg_req_get(tdc);
>>>          if (!sg_req) {
>>> -            dev_err(tdc2dev(tdc), "Dma sg-req not available\n");
>>> +            dev_err(tdc2dev(tdc), "DMA sg-req not available\n");
>>>              tegra_dma_desc_put(tdc, dma_desc);
>>>              return NULL;
>>>          }
>>>
>>
>>
>> There is also:
>>
>>     if (!tdc->config_init) {
>>         dev_err(tdc2dev(tdc), "dma channel is not configured\n");
>>         return NULL;
>>     }
>>
>> that could be fixed too and with that:
>>
>> Reviewed-by: Dmitry Osipenko <digetx@xxxxxxxxx>
> 
> Thanks, fixed for next patch series.
> 

	if (!hsgreq->configured) {
		tegra_dma_stop(tdc);
		dev_err(tdc2dev(tdc), "Error in dma transfer, aborting dma\n");
		tegra_dma_abort_all(tdc);
		return false;
	}

Please change that one too for consistency. The rest looks okay.



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