ARM: i.MX27 clk: Separate DT and non-DT init procedure

This patch separates DT and non-DT clock initialization procedure,
so we can avoid a lot of unneeded clk_register_clkdev() for DT case.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>

diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c
index 317a662..f5a6a3f 100644 (file)
--- a/arch/arm/mach-imx/clk-imx27.c
+++ b/arch/arm/mach-imx/clk-imx27.c
@@ -89,10 +89,9 @@ enum mx27_clks {
 static struct clk *clk[clk_max];
 static struct clk_onecell_data clk_data;
 
-int __init mx27_clocks_init(unsigned long fref)
+static void __init _mx27_clocks_init(unsigned long fref)
 {
-       int i;
-       struct device_node *np;
+       unsigned i;
 
        clk[dummy] = imx_clk_fixed("dummy", 0);
        clk[ckih] = imx_clk_fixed("ckih", fref);
@@ -206,12 +205,16 @@ int __init mx27_clocks_init(unsigned long fref)
                        pr_err("i.MX27 clk %d: register failed with %ld\n",
                                i, PTR_ERR(clk[i]));
 
-       np = of_find_compatible_node(NULL, NULL, "fsl,imx27-ccm");
-       if (np) {
-               clk_data.clks = clk;
-               clk_data.clk_num = ARRAY_SIZE(clk);
-               of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
-       }
+       clk_register_clkdev(clk[cpu_div], NULL, "cpu0");
+
+       clk_prepare_enable(clk[emi_ahb_gate]);
+
+       imx_print_silicon_rev("i.MX27", mx27_revision());
+}
+
+int __init mx27_clocks_init(unsigned long fref)
+{
+       _mx27_clocks_init(fref);
 
        clk_register_clkdev(clk[uart1_ipg_gate], "ipg", "imx21-uart.0");
        clk_register_clkdev(clk[per1_gate], "per", "imx21-uart.0");
@@ -274,14 +277,9 @@ int __init mx27_clocks_init(unsigned long fref)
        clk_register_clkdev(clk[emma_ipg_gate], "emma-ipg", "imx27-camera.0");
        clk_register_clkdev(clk[emma_ahb_gate], "ahb", "m2m-emmaprp.0");
        clk_register_clkdev(clk[emma_ipg_gate], "ipg", "m2m-emmaprp.0");
-       clk_register_clkdev(clk[cpu_div], NULL, "cpu0");
 
        mxc_timer_init(MX27_IO_ADDRESS(MX27_GPT1_BASE_ADDR), MX27_INT_GPT1);
 
-       clk_prepare_enable(clk[emi_ahb_gate]);
-
-       imx_print_silicon_rev("i.MX27", mx27_revision());
-
        return 0;
 }
 
@@ -298,5 +296,16 @@ int __init mx27_clocks_init_dt(void)
                        break;
        }
 
-       return mx27_clocks_init(fref);
+       _mx27_clocks_init(fref);
+
+       np = of_find_compatible_node(NULL, NULL, "fsl,imx27-ccm");
+       BUG_ON(!np);
+
+       clk_data.clks = clk;
+       clk_data.clk_num = ARRAY_SIZE(clk);
+       of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+
+       mxc_timer_init_dt(of_find_compatible_node(NULL, NULL, "fsl,imx1-gpt"));
+
+       return 0;
 }