UPSTREAM: dm: core: Round up size when allocating so that it is cache…

… line aligned

The size variable may not be always be a mulitple of
ARCH_DMA_MINALIGN and using it to flush cache leads to cache
misaligned warnings.

Therefore, round up the size to a multiple of ARCH_DMA_MINLAIGN
when allocating private data.

Change-Id: I29c4fb89f4be628518c2f5350d3efbccd28acd36
Signed-off-by: Faiz Abbas <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Kever Yang <[email protected]>
(cherry picked from commit 5924da1)

drivers/core/device.c

@@ -254,6 +254,7 @@ static void *alloc_priv(int size, uint flags)
 	void *priv;
 
 	if (flags & DM_FLAG_ALLOC_PRIV_DMA) {
+		size = ROUND(size, ARCH_DMA_MINALIGN);
 		priv = memalign(ARCH_DMA_MINALIGN, size);
 		if (priv) {
 			memset(priv, '\0', size);