@@ -683,14 +683,15 @@ static const struct attribute_group *coresight_stm_groups[] = {
NULL,
};
-static int stm_get_resource_byname(struct device_node *np,
- char *ch_base, struct resource *res)
+#ifdef CONFIG_OF
+static int of_stm_get_stimulus_area(struct device *dev, struct resource *res)
{
const char *name = NULL;
int index = 0, found = 0;
+ struct device_node *np = dev->of_node;
while (!of_property_read_string_index(np, "reg-names", index, &name)) {
- if (strcmp(ch_base, name)) {
+ if (strcmp("stm-stimulus-base", name)) {
index++;
continue;
}
@@ -705,6 +706,20 @@ static int stm_get_resource_byname(struct device_node *np,
return of_address_to_resource(np, index, res);
}
+#else
+static inline int of_stm_get_stimulus_area(struct device *dev,
+ struct resource *res)
+{
+ return -ENOENT;
+}
+#endif
+
+static int stm_get_stimulus_area(struct device *dev, struct resource *res)
+{
+ if (dev->of_node)
+ return of_stm_get_stimulus_area(dev, res);
+ return -ENOENT;
+}
static u32 stm_fundamental_data_size(struct stm_drvdata *drvdata)
{
@@ -819,7 +834,7 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
return PTR_ERR(base);
drvdata->base = base;
- ret = stm_get_resource_byname(np, "stm-stimulus-base", &ch_res);
+ ret = stm_get_stimulus_area(dev, &ch_res);
if (ret)
return ret;
drvdata->chs.phys = ch_res.start;
As we are about to refactor the platform specific handling re-arrange some of the DT specific property handling. Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> --- drivers/hwtracing/coresight/coresight-stm.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) -- 2.7.4