clk: asm9260: Migrate to clk_hw based registration and OF APIs
authorStephen Boyd <stephen.boyd@linaro.org>
Wed, 1 Jun 2016 23:15:07 +0000 (16:15 -0700)
committerStephen Boyd <sboyd@codeaurora.org>
Wed, 24 Aug 2016 23:08:33 +0000 (16:08 -0700)
Now that we have clk_hw based provider APIs to register clks, we
can get rid of struct clk pointers while registering clks in
these drivers, allowing us to move closer to a clear split of
consumer and provider clk APIs.

Cc: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
drivers/clk/clk-asm9260.c

index 90897af8d9f74b6eb1ec7b4ee309c04f500aea4c..ea8568536193ba3c59db95e904ceb8ad75e034d2 100644 (file)
@@ -68,8 +68,7 @@
 #define HW_LCDCLKDIV           0x01fc
 #define HW_ADCANACLKDIV                0x0200
 
-static struct clk *clks[MAX_CLKS];
-static struct clk_onecell_data clk_data;
+static struct clk_hw_onecell_data *clk_data;
 static DEFINE_SPINLOCK(asm9260_clk_lock);
 
 struct asm9260_div_clk {
@@ -267,12 +266,20 @@ static struct asm9260_mux_clock asm9260_mux_clks[] __initdata = {
 
 static void __init asm9260_acc_init(struct device_node *np)
 {
-       struct clk *clk;
+       struct clk_hw *hw;
+       struct clk_hw **hws;
        const char *ref_clk, *pll_clk = "pll";
        u32 rate;
        int n;
        u32 accuracy = 0;
 
+       clk_data = kzalloc(sizeof(*clk_data) +
+                          sizeof(*clk_data->hws) * MAX_CLKS, GFP_KERNEL);
+       if (!clk_data)
+               return;
+       clk_data->num = MAX_CLKS;
+       hws = clk_data->hws;
+
        base = of_io_request_and_map(np, 0, np->name);
        if (IS_ERR(base))
                panic("%s: unable to map resource", np->name);
@@ -282,10 +289,10 @@ static void __init asm9260_acc_init(struct device_node *np)
 
        ref_clk = of_clk_get_parent_name(np, 0);
        accuracy = clk_get_accuracy(__clk_lookup(ref_clk));
-       clk = clk_register_fixed_rate_with_accuracy(NULL, pll_clk,
+       hw = clk_hw_register_fixed_rate_with_accuracy(NULL, pll_clk,
                        ref_clk, 0, rate, accuracy);
 
-       if (IS_ERR(clk))
+       if (IS_ERR(hw))
                panic("%s: can't register REFCLK. Check DT!", np->name);
 
        for (n = 0; n < ARRAY_SIZE(asm9260_mux_clks); n++) {
@@ -293,7 +300,7 @@ static void __init asm9260_acc_init(struct device_node *np)
 
                mc->parent_names[0] = ref_clk;
                mc->parent_names[1] = pll_clk;
-               clk = clk_register_mux_table(NULL, mc->name, mc->parent_names,
+               hw = clk_hw_register_mux_table(NULL, mc->name, mc->parent_names,
                                mc->num_parents, mc->flags, base + mc->offset,
                                0, mc->mask, 0, mc->table, &asm9260_clk_lock);
        }
@@ -302,7 +309,7 @@ static void __init asm9260_acc_init(struct device_node *np)
        for (n = 0; n < ARRAY_SIZE(asm9260_mux_gates); n++) {
                const struct asm9260_gate_data *gd = &asm9260_mux_gates[n];
 
-               clk = clk_register_gate(NULL, gd->name,
+               hw = clk_hw_register_gate(NULL, gd->name,
                        gd->parent_name, gd->flags | CLK_SET_RATE_PARENT,
                        base + gd->reg, gd->bit_idx, 0, &asm9260_clk_lock);
        }
@@ -311,7 +318,7 @@ static void __init asm9260_acc_init(struct device_node *np)
        for (n = 0; n < ARRAY_SIZE(asm9260_div_clks); n++) {
                const struct asm9260_div_clk *dc = &asm9260_div_clks[n];
 
-               clks[dc->idx] = clk_register_divider(NULL, dc->name,
+               hws[dc->idx] = clk_hw_register_divider(NULL, dc->name,
                                dc->parent_name, CLK_SET_RATE_PARENT,
                                base + dc->reg, 0, 8, CLK_DIVIDER_ONE_BASED,
                                &asm9260_clk_lock);
@@ -321,14 +328,14 @@ static void __init asm9260_acc_init(struct device_node *np)
        for (n = 0; n < ARRAY_SIZE(asm9260_ahb_gates); n++) {
                const struct asm9260_gate_data *gd = &asm9260_ahb_gates[n];
 
-               clks[gd->idx] = clk_register_gate(NULL, gd->name,
+               hws[gd->idx] = clk_hw_register_gate(NULL, gd->name,
                                gd->parent_name, gd->flags, base + gd->reg,
                                gd->bit_idx, 0, &asm9260_clk_lock);
        }
 
        /* check for errors on leaf clocks */
        for (n = 0; n < MAX_CLKS; n++) {
-               if (!IS_ERR(clks[n]))
+               if (!IS_ERR(hws[n]))
                        continue;
 
                pr_err("%s: Unable to register leaf clock %d\n",
@@ -337,9 +344,7 @@ static void __init asm9260_acc_init(struct device_node *np)
        }
 
        /* register clk-provider */
-       clk_data.clks = clks;
-       clk_data.clk_num = MAX_CLKS;
-       of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+       of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
        return;
 fail:
        iounmap(base);