Commit 418e7407 authored by Viresh Kumar's avatar Viresh Kumar Committed by Vinod Koul
Browse files

dw_dmac: Change value of DWC_MAX_COUNT to 4095. 



Every descriptor can transfer a maximum count of 4095 (12 bits, in control reg),
So we must have DWC_MAX_COUNT as 4095 instead of 2048.

Signed-off-by: default avatarViresh Kumar <viresh.kumar@st.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent a0227456

drivers/dma/dw_dmac.c

+2 −3
Original line number Diff line number Diff line
@@ -47,14 +47,13 @@ 


/*

 * This is configuration-dependent and usually a funny size like 4095.

 * Let's round it down to the nearest power of two.

 *

 * Note that this is a transfer count, i.e. if we transfer 32-bit

 * words, we can do 8192 bytes per descriptor.

 * words, we can do 16380 bytes per descriptor.

 *

 * This parameter is also system-specific.

 */

#define DWC_MAX_COUNT	2048U

#define DWC_MAX_COUNT	4095U



/*

 * Number of descriptors to allocate for each channel. This should be