clk: rockchip: allow no rockchip,grf in dts on arm

Signed-off-by: Huang, Tao <huangtao@rock-chips.com>

diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c
index dcc80e542a4b4b32a5bb00a847c9883ee5ec279b..d198c73001a7e6e45b2ad6a194993f8f85830b4d 100755 (executable)
--- a/drivers/clk/rockchip/clk.c
+++ b/drivers/clk/rockchip/clk.c
@@ -1885,7 +1885,12 @@ static void __init rk_clk_tree_init(struct device_node *np)
        }
 
        node = of_parse_phandle(np, "rockchip,grf", 0);
-       rk_grf_base = of_iomap(node, 0);
+       if (node)
+               rk_grf_base = of_iomap(node, 0);
+#ifdef CONFIG_ARM
+       if (!rk_grf_base)
+               rk_grf_base = RK_GRF_VIRT;
+#endif
 
        for_each_available_child_of_node(np, node) {
                clk_debug("\n");