ARM64: dts: rk3399-box-rev2: enable hdmi uboot logo display

[firefly-linux-kernel-4.4.55.git] / drivers / of / of_reserved_mem.c

diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index be77e75c587db95c55a51e556f228f97810e051c..07dd81586c52b6761a9683b30872e36842f965ce 100644 (file)
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -32,11 +32,13 @@ int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
        phys_addr_t align, phys_addr_t start, phys_addr_t end, bool nomap,
        phys_addr_t *res_base)
 {
+       phys_addr_t base;
        /*
         * We use __memblock_alloc_base() because memblock_alloc_base()
         * panic()s on allocation failure.
         */
-       phys_addr_t base = __memblock_alloc_base(size, align, end);
+       end = !end ? MEMBLOCK_ALLOC_ANYWHERE : end;
+       base = __memblock_alloc_base(size, align, end);
        if (!base)
                return -ENOMEM;
 
@@ -125,8 +127,12 @@ 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"))
-               align = max(align, (phys_addr_t)PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order));
+       if (IS_ENABLED(CONFIG_CMA) && of_flat_dt_is_compatible(node, "shared-dma-pool")) {
+               unsigned long order =
+                       max_t(unsigned long, MAX_ORDER - 1, pageblock_order);
+
+               align = max(align, (phys_addr_t)PAGE_SIZE << order);
+       }
 
        prop = of_get_flat_dt_prop(node, "alloc-ranges", &len);
        if (prop) {
@@ -206,7 +212,13 @@ static int __init __rmem_cmp(const void *a, const void *b)
 {
        const struct reserved_mem *ra = a, *rb = b;
 
-       return ra->base - rb->base;
+       if (ra->base < rb->base)
+               return -1;
+
+       if (ra->base > rb->base)
+               return 1;
+
+       return 0;
 }
 
 static void __init __rmem_check_for_overlap(void)