Hi Mischa,
On Jul 26, 2013, at 3:08 PM, Mischa Jonker wrote:
In dwmci_prepare_data, the descriptors are allocated for DMA transfer. These are allocated using the ALLOC_CACHE_ALIGN_BUFFER. This macro uses the stack to allocate these descriptors. This becomes a problem if the DMA transfer continues after the processor leaves the function in which the descriptors were allocated.
Therefore, I have moved the allocated of the buffers up one level, to dwmci_send_cmd(). The DMA transfer should be complete when leaving this function.
Signed-off-by: Mischa Jonker mjonker@synopsys.com Cc: Alexey Brodkin abrodkin@synopsys.com Cc: Jaehoon Chung jh80.chung@samsung.com Cc: Andy Fleming afleming@gmail.com
Acked-by: Pantelis Antoniou panto@antoniou-consulting.com
Thanks