drivers: of: of_reserved_mem: fixup the CMA alignment not to affect dma-coherent

There was an alignment mismatch issue for CMA and it was fixed by
commit 1cc8e345 ("drivers: of: of_reserved_mem: fixup the alignment with CMA setup").
However the way of the commit considers not only dma-contiguous(CMA) but also
dma-coherent which has no that requirement.

This patch checks more to distinguish dma-contiguous(CMA) from dma-coherent.
Signed-off-by: NJaewon Kim <jaewon31.kim@samsung.com>
Acked-by: NJason Liu <r64343@freescale.com>
Acked-by: NMarek Szyprowski <m.szyprowski@samsung.com>
[robh: remove erroneous opening bracket]
Signed-off-by: NRob Herring <robh@kernel.org>

drivers/of/of_reserved_mem.c

@@ -127,7 +127,10 @@ static int __init __reserved_mem_alloc_size(unsigned long node,
 	}
 
 	/* Need adjust the alignment to satisfy the CMA requirement */
-	if (IS_ENABLED(CONFIG_CMA) && of_flat_dt_is_compatible(node, "shared-dma-pool"))
+	if (IS_ENABLED(CONFIG_CMA)
+	    && of_flat_dt_is_compatible(node, "shared-dma-pool")
+	    && of_get_flat_dt_prop(node, "reusable", NULL)
+	    && !of_get_flat_dt_prop(node, "no-map", NULL))
 		align = max(align, (phys_addr_t)PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order));
 
 	prop = of_get_flat_dt_prop(node, "alloc-ranges", &len);