clk: ti: clkctrl: add support for clkdm init for clkctrl clocks

Clkctrl clocks now support clockdomain init also. This will be needed
so that hwmod core can drop the support for clockdomain handling.

Signed-off-by: Tero Kristo <t-kristo@ti.com>

2 files changed, 23 insertions, 0 deletions

diff --git a/drivers/clk/ti/clkctrl.c b/drivers/clk/ti/clkctrl.c
index 2db7d4080f25..284ba449615c 100644
--- a/drivers/clk/ti/clkctrl.c
+++ b/drivers/clk/ti/clkctrl.c
@@ -46,6 +46,7 @@ static bool _early_timeout = true;
 struct omap_clkctrl_provider {
         void __iomem *base;
         struct list_head clocks;
+        char *clkdm_name;
 };
 
 struct omap_clkctrl_clk {
@@ -208,6 +209,7 @@ static const struct clk_ops omap4_clkctrl_clk_ops = {
         .enable         = _omap4_clkctrl_clk_enable,
         .disable        = _omap4_clkctrl_clk_disable,
         .is_enabled     = _omap4_clkctrl_clk_is_enabled,
+        .init           = omap2_init_clk_clkdm,
 };
 
 static struct clk_hw *_ti_omap4_clkctrl_xlate(struct of_phandle_args *clkspec,
@@ -438,6 +440,21 @@ static void __init _ti_omap4_clkctrl_setup(struct device_node *node)
 
         provider->base = of_iomap(node, 0);
 
+        provider->clkdm_name = kmalloc(strlen(node->parent->name) + 3,
+                                       GFP_KERNEL);
+        if (!provider->clkdm_name) {
+                kfree(provider);
+                return;
+        }
+
+        /*
+         * Create default clkdm name, replace _cm from end of parent node
+         * name with _clkdm
+         */
+        strcpy(provider->clkdm_name, node->parent->name);
+        provider->clkdm_name[strlen(provider->clkdm_name) - 2] = 0;
+        strcat(provider->clkdm_name, "clkdm");
+
         INIT_LIST_HEAD(&provider->clocks);
 
         /* Generate clocks */
@@ -460,6 +477,11 @@ static void __init _ti_omap4_clkctrl_setup(struct device_node *node)
                 if (reg_data->flags & CLKF_NO_IDLEST)
                         hw->flags |= NO_IDLEST;
 
+                if (reg_data->clkdm_name)
+                        hw->clkdm_name = reg_data->clkdm_name;
+                else
+                        hw->clkdm_name = provider->clkdm_name;
+
                 init.parent_names = &reg_data->parent;
                 init.num_parents = 1;
                 init.flags = 0;
diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h
index 561dbe99ced7..169241fd1edf 100644
--- a/drivers/clk/ti/clock.h
+++ b/drivers/clk/ti/clock.h
@@ -221,6 +221,7 @@ struct omap_clkctrl_reg_data {
         const struct omap_clkctrl_bit_data *bit_data;
         u16 flags;
         const char *parent;
+        const char *clkdm_name;
 };
 
 struct omap_clkctrl_data {