On Tuesday 07 June 2016 02:47 PM, Peter Ujfalusi wrote:
[...]
>> @@ -637,6 +770,33 @@ static int ti_qspi_probe(struct platform_device *pdev)
>> if (ret)
>> goto free_master;
>>
>> +dma_cap_zero(mask);
>> +dma_cap_set(DMA_MEMCPY, mask);
>> +
>> +qspi->rx_chan = dma_
Hi,
[auto build test WARNING on spi/for-next]
[also build test WARNING on v4.7-rc2 next-20160606]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Vignesh-R/spi-Add-DMA-support-for-ti-qspi/2016060
On 06/07/16 11:18, Vignesh R wrote:
> Use mem-to-mem DMA to read from flash when reading in mmap mode. This
> gives improved read performance and reduces CPU load.
>
> With this patch the raw-read throughput is ~16MB/s on DRA74 EVM. And CPU
> load is <20%. UBIFS read ~13 MB/s.
>
> Signed-off-by:
Use mem-to-mem DMA to read from flash when reading in mmap mode. This
gives improved read performance and reduces CPU load.
With this patch the raw-read throughput is ~16MB/s on DRA74 EVM. And CPU
load is <20%. UBIFS read ~13 MB/s.
Signed-off-by: Vignesh R
---
v3: Cleanup code based on review c
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