linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Arnaud Pouliquen <arnaud.pouliquen@st.com>
To: Bjorn Andersson <bjorn.andersson@linaro.org>,
	Ohad Ben-Cohen <ohad@wizery.com>,
	Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: <linux-remoteproc@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-stm32@st-md-mailman.stormreply.com>,
	<arnaud.pouliquen@st.com>
Subject: [RFC 04/18] remoteproc: Add rproc_get_by_node helper
Date: Thu, 16 Apr 2020 18:13:17 +0200	[thread overview]
Message-ID: <20200416161331.7606-5-arnaud.pouliquen@st.com> (raw)
In-Reply-To: <20200416161331.7606-1-arnaud.pouliquen@st.com>

Allow to retrieve the rproc structure from a rproc platform
child declared in the device tree.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
---
 drivers/remoteproc/remoteproc_core.c | 14 ++++++--------
 include/linux/remoteproc.h           |  7 ++++++-
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 4fcd685cbfd8..32056449bb72 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -1739,10 +1739,10 @@ void rproc_shutdown(struct rproc *rproc)
 EXPORT_SYMBOL(rproc_shutdown);
 
 /**
- * rproc_get_by_phandle() - find a remote processor by phandle
- * @phandle: phandle to the rproc
+ * rproc_get_by_node() - find a remote processor by device node
+ * @np: device tree node
  *
- * Finds an rproc handle using the remote processor's phandle, and then
+ * Finds an rproc handle using the remote processor's node, and then
  * return a handle to the rproc.
  *
  * This function increments the remote processor's refcount, so always
@@ -1751,12 +1751,10 @@ EXPORT_SYMBOL(rproc_shutdown);
  * Returns the rproc handle on success, and NULL on failure.
  */
 #ifdef CONFIG_OF
-struct rproc *rproc_get_by_phandle(phandle phandle)
+struct rproc *rproc_get_by_node(struct device_node *np)
 {
 	struct rproc *rproc = NULL, *r;
-	struct device_node *np;
 
-	np = of_find_node_by_phandle(phandle);
 	if (!np)
 		return NULL;
 
@@ -1781,12 +1779,12 @@ struct rproc *rproc_get_by_phandle(phandle phandle)
 	return rproc;
 }
 #else
-struct rproc *rproc_get_by_phandle(phandle phandle)
+struct rproc *rproc_get_by_node(struct device_node *np)
 {
 	return NULL;
 }
 #endif
-EXPORT_SYMBOL(rproc_get_by_phandle);
+EXPORT_SYMBOL(rproc_get_by_node);
 
 /**
  * rproc_add() - register a remote processor
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index a78e28bda962..ab9762563ae0 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -586,9 +586,14 @@ struct rproc_vdev {
 	u32 index;
 };
 
-struct rproc *rproc_get_by_phandle(phandle phandle);
+struct rproc *rproc_get_by_node(struct device_node *np);
 struct rproc *rproc_get_by_child(struct device *dev);
 
+static inline struct rproc *rproc_get_by_phandle(phandle phandle)
+{
+	return rproc_get_by_node(of_find_node_by_phandle(phandle));
+}
+
 struct rproc *rproc_alloc(struct device *dev, const char *name,
 			  const struct rproc_ops *ops,
 			  const char *firmware, int len);
-- 
2.17.1


  parent reply	other threads:[~2020-04-16 16:15 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-16 16:13 [RFC 00/18] remoteproc: Decorelate virtio from core Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 01/18] remoteproc: Store resource table address in rvdev Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 02/18] remoteproc: Introduce virtio device add/remove functions in core Arnaud Pouliquen
2020-04-21 20:41   ` Mathieu Poirier
2020-04-22 12:30     ` Arnaud POULIQUEN
2020-04-22 16:57   ` Mathieu Poirier
2020-04-16 16:13 ` [RFC 03/18] remoteproc: Move rvdev management in rproc_virtio Arnaud Pouliquen
2020-04-21 22:18   ` Mathieu Poirier
2020-04-22 17:26   ` Mathieu Poirier
2020-04-16 16:13 ` Arnaud Pouliquen [this message]
2020-04-16 16:13 ` [RFC 05/18] remoteproc: Create platform device for vdev Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 06/18] remoteproc: Add component in core for child devices synchronization Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 07/18] remoteproc: Add component bind/unbind for virtio platform Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 08/18] remoteproc: Externalize carveout functions Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 09/18] remoteproc: Move vring management from core to virtio Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 10/18] remoteproc: Add capability to populate rproc subnode devices Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 11/18] remoteproc: Add child node component in rproc match list Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 12/18] remoteproc: Support of pre-registered virtio device Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 13/18] remoteproc: Add memory default allocator helper Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 14/18] remoteproc: Add pa to da translation API Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 15/18] remoteproc: associate memory entry to a device Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 16/18] remoteproc: Parse virtio node for memory region Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 17/18] remoteproc: stm32: Add the pa to da ops Arnaud Pouliquen
2020-04-16 16:13 ` [RFC 18/18] ARM: dts: stm32: Declare a virtio device Arnaud Pouliquen
2020-04-23 17:26 ` [RFC 00/18] remoteproc: Decorelate virtio from core Mathieu Poirier

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200416161331.7606-5-arnaud.pouliquen@st.com \
    --to=arnaud.pouliquen@st.com \
    --cc=bjorn.andersson@linaro.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-remoteproc@vger.kernel.org \
    --cc=linux-stm32@st-md-mailman.stormreply.com \
    --cc=mathieu.poirier@linaro.org \
    --cc=ohad@wizery.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).