25 Oct
2016
25 Oct
'16
4:02 p.m.
On Tue, Oct 25, 2016 at 12:37:59AM +0000, Kuninori Morimoto wrote:
Current Renesas Sound driver requests DMA channel when .probe timing, and release it when .remove timing. And use DMA on .start/.stop But, Audio DMAC power ON was handled when request timing (= .probe), and power OFF was when release timing (= .remove). This means Audio DMAC power is always ON during driver was enabled. This patch fixup to request/release DMA channel each time.
Isn't this something which should be handled by better power management in the DMA driver rather than this?