clk: sunxi: make factors_clk_setup return the clock it registers

We will be needing this to register a factor clock as parent with leaf
divisors on a single call.

Signed-off-by: Emilio López <emilio@elopez.com.ar>
Acked-by: Mike Turquette <mturquette@linaro.org>

diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
index eeb623b..31e1fe1 100644 (file)
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -317,8 +317,8 @@ static const struct factors_data sun4i_apb1_data __initconst = {
        .getter = sun4i_get_apb1_factors,
 };
 
-static void __init sunxi_factors_clk_setup(struct device_node *node,
-                                          struct factors_data *data)
+static struct clk * __init sunxi_factors_clk_setup(struct device_node *node,
+                                               const struct factors_data *data)
 {
        struct clk *clk;
        struct clk_factors *factors;
@@ -340,14 +340,14 @@ static void __init sunxi_factors_clk_setup(struct device_node *node,
 
        factors = kzalloc(sizeof(struct clk_factors), GFP_KERNEL);
        if (!factors)
-               return;
+               return NULL;
 
        /* Add a gate if this factor clock can be gated */
        if (data->enable) {
                gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL);
                if (!gate) {
                        kfree(factors);
-                       return;
+                       return NULL;
                }
 
                /* set up gate properties */
@@ -363,7 +363,7 @@ static void __init sunxi_factors_clk_setup(struct device_node *node,
                if (!mux) {
                        kfree(factors);
                        kfree(gate);
-                       return;
+                       return NULL;
                }
 
                /* set up gate properties */
@@ -384,13 +384,14 @@ static void __init sunxi_factors_clk_setup(struct device_node *node,
                        parents, i,
                        mux_hw, &clk_mux_ops,
                        &factors->hw, &clk_factors_ops,
-                       gate_hw, &clk_gate_ops,
-                       i ? 0 : CLK_IS_ROOT);
+                       gate_hw, &clk_gate_ops, 0);
 
        if (!IS_ERR(clk)) {
                of_clk_add_provider(node, of_clk_src_simple_get, clk);
                clk_register_clkdev(clk, clk_name, NULL);
        }
+
+       return clk;
 }