[PATCH] mtd: spi-nor: cadence-quadspi: Add DMA support for direct mode reads

Marek Vasut marek.vasut at gmail.com
Tue Apr 10 02:21:03 PDT 2018

On 04/10/2018 10:19 AM, Vignesh R wrote:
> Add support to use DMA over memory mapped reads in direct mode. This
> helps in reducing CPU usage from ~100% to ~10% when reading data from
> flash. For non-DMA'able/vmalloc'd buffers, driver just falls back to CPU
> based memcpy.
> Signed-off-by: Vignesh R <vigneshr at ti.com>

Reviewed-by: Marek Vasut <marek.vasut at gmail.com>

Best regards,
Marek Vasut

More information about the linux-mtd mailing list