clk: nomadik: declare OF clock provider

Common clock framework allows to register clock providers to get called
on of_clk_init() by using CLK_OF_DECLARE. This converts nomadik clock
provider to make use of it and get rid of the mach specific clk init
call. As clocks require system reset controller base address to be
initialized each clock driver checks src_base and calls new
nomadik_src_init if required.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Mike Turquette <mturquette@linaro.org>

1 files changed, 15 insertions, 30 deletions

diff --git a/drivers/clk/clk-nomadik.c b/drivers/clk/clk-nomadik.c
index 06b29c264dbe..ce2d6b32e3f5 100644
--- a/drivers/clk/clk-nomadik.c
+++ b/drivers/clk/clk-nomadik.c
@@ -512,6 +512,9 @@ static void __init of_nomadik_pll_setup(struct device_node *np)
         const char *parent_name;
         u32 pll_id;
 
+        if (!src_base)
+                nomadik_src_init();
+
         if (of_property_read_u32(np, "pll-id", &pll_id)) {
                 pr_err("%s: PLL \"%s\" missing pll-id property\n",
                         __func__, clk_name);
@@ -522,6 +525,8 @@ static void __init of_nomadik_pll_setup(struct device_node *np)
         if (!IS_ERR(clk))
                 of_clk_add_provider(np, of_clk_src_simple_get, clk);
 }
+CLK_OF_DECLARE(nomadik_pll_clk,
+        "st,nomadik-pll-clock", of_nomadik_pll_setup);
 
 static void __init of_nomadik_hclk_setup(struct device_node *np)
 {
@@ -529,6 +534,9 @@ static void __init of_nomadik_hclk_setup(struct device_node *np)
         const char *clk_name = np->name;
         const char *parent_name;
 
+        if (!src_base)
+                nomadik_src_init();
+
         parent_name = of_clk_get_parent_name(np, 0);
         /*
          * The HCLK divides PLL1 with 1 (passthru), 2, 3 or 4.
@@ -541,6 +549,8 @@ static void __init of_nomadik_hclk_setup(struct device_node *np)
         if (!IS_ERR(clk))
                 of_clk_add_provider(np, of_clk_src_simple_get, clk);
 }
+CLK_OF_DECLARE(nomadik_hclk_clk,
+        "st,nomadik-hclk-clock", of_nomadik_hclk_setup);
 
 static void __init of_nomadik_src_clk_setup(struct device_node *np)
 {
@@ -549,6 +559,9 @@ static void __init of_nomadik_src_clk_setup(struct device_node *np)
         const char *parent_name;
         u32 clk_id;
 
+        if (!src_base)
+                nomadik_src_init();
+
         if (of_property_read_u32(np, "clock-id", &clk_id)) {
                 pr_err("%s: SRC clock \"%s\" missing clock-id property\n",
                         __func__, clk_name);
@@ -559,33 +572,5 @@ static void __init of_nomadik_src_clk_setup(struct device_node *np)
         if (!IS_ERR(clk))
                 of_clk_add_provider(np, of_clk_src_simple_get, clk);
 }
-
-static const struct of_device_id nomadik_src_clk_match[] __initconst = {
-        {
-                .compatible = "fixed-clock",
-                .data = of_fixed_clk_setup,
-        },
-        {
-                .compatible = "fixed-factor-clock",
-                .data = of_fixed_factor_clk_setup,
-        },
-        {
-                .compatible = "st,nomadik-pll-clock",
-                .data = of_nomadik_pll_setup,
-        },
-        {
-                .compatible = "st,nomadik-hclk-clock",
-                .data = of_nomadik_hclk_setup,
-        },
-        {
-                .compatible = "st,nomadik-src-clock",
-                .data = of_nomadik_src_clk_setup,
-        },
-        { /* sentinel */ }
-};
-
-void __init nomadik_clk_init(void)
-{
-        nomadik_src_init();
-        of_clk_init(nomadik_src_clk_match);
-}
+CLK_OF_DECLARE(nomadik_src_clk,
+        "st,nomadik-src-clock", of_nomadik_src_clk_setup);