提交 418e7407 编写于 作者: V Viresh Kumar 提交者: Vinod Koul

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: NViresh Kumar <viresh.kumar@st.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
上级 a0227456
......@@ -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
......
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