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-rw-r--r--drivers/bus/ti-sysc.c36
1 files changed, 23 insertions, 13 deletions
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 25c0e4ae9f1d..e12d1580f21d 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -811,29 +811,38 @@ static int sysc_init_syss_mask(struct sysc *ddata)
}
/*
- * Many child device drivers need to have fck available to get the clock
- * rate for device internal configuration.
+ * Many child device drivers need to have fck and opt clocks available
+ * to get the clock rate for device internal configuration etc.
*/
-static int sysc_child_add_fck(struct sysc *ddata,
- struct device *child)
+static int sysc_child_add_named_clock(struct sysc *ddata,
+ struct device *child,
+ const char *name)
{
- struct clk *fck;
+ struct clk *clk;
struct clk_lookup *l;
- const char *name = clock_names[SYSC_FCK];
+ int error = 0;
- if (IS_ERR_OR_NULL(ddata->clocks[SYSC_FCK]))
+ if (!name)
return 0;
- fck = clk_get(child, name);
- if (!IS_ERR(fck)) {
- clk_put(fck);
+ clk = clk_get(child, name);
+ if (!IS_ERR(clk)) {
+ clk_put(clk);
return -EEXIST;
}
- l = clkdev_create(ddata->clocks[SYSC_FCK], name, dev_name(child));
+ clk = clk_get(ddata->dev, name);
+ if (IS_ERR(clk))
+ return -ENODEV;
+
+ l = clkdev_create(clk, name, dev_name(child));
+ if (!l)
+ error = -ENOMEM;
- return l ? 0 : -ENODEV;
+ clk_put(clk);
+
+ return error;
}
static struct device_type sysc_device_type = {
@@ -983,7 +992,8 @@ static int sysc_notifier_call(struct notifier_block *nb,
switch (event) {
case BUS_NOTIFY_ADD_DEVICE:
- error = sysc_child_add_fck(ddata, dev);
+ error = sysc_child_add_named_clock(ddata, dev,
+ clock_names[SYSC_FCK]);
if (error && error != -EEXIST)
dev_warn(ddata->dev, "could not add %s fck: %i\n",
dev_name(dev), error);