4 Jan
2018
4 Jan
'18
1:02 p.m.
On Wed, Jan 03, 2018 at 09:20:45AM -0800, Stephen Boyd wrote:
On 12/14/2017 09:34 AM, srinivas.kandagatla@linaro.org wrote:
uThis patch adds support to DB820c machine driver.
- ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
Why do we need to do this? Can you add some sort of comment in the code about why?
And why are we applying DMA restrictions in a machine driver?