@@ -1269,47 +1269,24 @@ struct rproc *of_get_rproc_by_name(struct device_node *np, const char *name)
EXPORT_SYMBOL(of_get_rproc_by_name);
/**
- * rproc_get_by_phandle() - find a remote processor by phandle
- * @phandle: phandle to the rproc
+ * of_get_rproc_by_phandle() - lookup and obtain a reference to an rproc
+ * @np: node to search for rproc
*
- * Finds an rproc handle using the remote processor's phandle, and then
- * return a handle to the rproc.
+ * Finds an rproc handle using the default remote processor's phandle,
+ * and then returns a handle to the rproc.
*
* This function increments the remote processor's refcount, so always
* use rproc_put() to decrement it back once rproc isn't needed anymore.
*
- * Returns the rproc handle on success, and NULL on failure.
+ * Returns a pointer to the rproc struct on success or an appropriate error
+ * code otherwise.
*/
-struct rproc *rproc_get_by_phandle(phandle phandle)
-{
- struct rproc *rproc = NULL, *r;
- struct device_node *np;
-
- np = of_find_node_by_phandle(phandle);
- if (!np)
- return NULL;
-
- mutex_lock(&rproc_list_mutex);
- list_for_each_entry(r, &rproc_list, node) {
- if (r->dev.parent && r->dev.parent->of_node == np) {
- rproc = r;
- get_device(&rproc->dev);
- break;
- }
- }
- mutex_unlock(&rproc_list_mutex);
-
- of_node_put(np);
-
- return rproc;
-}
-#else
-struct rproc *rproc_get_by_phandle(phandle phandle)
+struct rproc *of_get_rproc_by_phandle(struct device_node *np)
{
- return NULL;
+ return of_get_rproc_by_index(np, 0);
}
+EXPORT_SYMBOL(of_get_rproc_by_phandle);
#endif
-EXPORT_SYMBOL(rproc_get_by_phandle);
/**
* rproc_add() - register a remote processor
@@ -385,7 +385,6 @@ static int wkup_m3_ipc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
int irq, ret;
- phandle rproc_phandle;
struct rproc *m3_rproc;
struct resource *res;
struct task_struct *task;
@@ -430,16 +429,9 @@ static int wkup_m3_ipc_probe(struct platform_device *pdev)
return PTR_ERR(m3_ipc->mbox);
}
- if (of_property_read_u32(dev->of_node, "ti,rproc", &rproc_phandle)) {
- dev_err(&pdev->dev, "could not get rproc phandle\n");
- ret = -ENODEV;
- goto err_free_mbox;
- }
-
- m3_rproc = rproc_get_by_phandle(rproc_phandle);
- if (!m3_rproc) {
- dev_err(&pdev->dev, "could not get rproc handle\n");
- ret = -EPROBE_DEFER;
+ m3_rproc = of_get_rproc_by_phandle(dev->of_node);
+ if (IS_ERR(m3_rproc)) {
+ ret = PTR_ERR(m3_rproc);
goto err_free_mbox;
}
@@ -515,7 +515,7 @@ extern struct rproc *of_get_rproc_by_index(struct device_node *np,
int index);
extern struct rproc *of_get_rproc_by_name(struct device_node *np,
const char *name);
-extern struct rproc *rproc_get_by_phandle(phandle phandle);
+extern struct rproc *of_get_rproc_by_phandle(struct device_node *np);
#else
static inline
struct rproc *of_get_rproc_by_index(struct device_node *np, int index)
@@ -528,7 +528,7 @@ struct rproc *of_get_rproc_by_name(struct device_node *np, const char *name)
return NULL;
}
static inline
-struct rproc *rproc_get_by_phandle(phandle phandle)
+struct rproc *of_get_rproc_by_phandle(struct device_node *np)
{
return NULL;
}
In this patch we; - Use a subsystem generic phandle to obtain an rproc - We have to support TI's bespoke version for the time being - Convert wkup_m3_ipc driver to new API - Rename the call to be more like other, similar OF calls - Move feature-not-enabled inline stub to the headers - Strip out duplicate code by calling into of_get_rproc_by_index() Signed-off-by: Lee Jones <lee.jones@linaro.org> --- drivers/remoteproc/remoteproc_core.c | 41 ++++++++---------------------------- drivers/soc/ti/wkup_m3_ipc.c | 14 +++--------- include/linux/remoteproc.h | 4 ++-- 3 files changed, 14 insertions(+), 45 deletions(-) -- 2.9.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel