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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Ohad Ben-Cohen <ohad@wizery.com>,
	Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Jonathan Corbet <corbet@lwn.net>,
	Linus Walleij <linus.walleij@linaro.org>,
	Marek Novak <marek.novak@nxp.com>,
	Matteo Sartori <matteo.sartori@t3lab.it>,
	Michal Simek <monstr@monstr.eu>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-remoteproc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-arm-msm@vger.kernel.org
Subject: [PATCH 2/5] rpmsg: Introduce a driver override mechanism
Date: Fri,  7 Oct 2016 21:23:12 -0700	[thread overview]
Message-ID: <1475900595-8375-2-git-send-email-bjorn.andersson@linaro.org> (raw)
In-Reply-To: <1475900595-8375-1-git-send-email-bjorn.andersson@linaro.org>

Similar to other subsystems it's useful to provide a mechanism to force
a specific driver match on a device, so introduce this.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 drivers/rpmsg/rpmsg_core.c | 3 +++
 include/linux/rpmsg.h      | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
index b6ea9ffa7381..087d4db896c8 100644
--- a/drivers/rpmsg/rpmsg_core.c
+++ b/drivers/rpmsg/rpmsg_core.c
@@ -315,6 +315,9 @@ static int rpmsg_dev_match(struct device *dev, struct device_driver *drv)
 	const struct rpmsg_device_id *ids = rpdrv->id_table;
 	unsigned int i;
 
+	if (rpdev->driver_override)
+		return !strcmp(rpdev->driver_override, drv->name);
+
 	if (ids)
 		for (i = 0; ids[i].name[0]; i++)
 			if (rpmsg_id_match(rpdev, &ids[i]))
diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h
index 452d393cc8dd..7ad6c205f110 100644
--- a/include/linux/rpmsg.h
+++ b/include/linux/rpmsg.h
@@ -64,6 +64,7 @@ struct rpmsg_channel_info {
  * rpmsg_device - device that belong to the rpmsg bus
  * @dev: the device struct
  * @id: device id (used to match between rpmsg drivers and devices)
+ * @driver_override: driver name to force a match
  * @src: local address
  * @dst: destination address
  * @ept: the rpmsg endpoint of this channel
@@ -72,6 +73,7 @@ struct rpmsg_channel_info {
 struct rpmsg_device {
 	struct device dev;
 	struct rpmsg_device_id id;
+	char *driver_override;
 	u32 src;
 	u32 dst;
 	struct rpmsg_endpoint *ept;
-- 
2.5.0

WARNING: multiple messages have this Message-ID
From: bjorn.andersson@linaro.org (Bjorn Andersson)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/5] rpmsg: Introduce a driver override mechanism
Date: Fri,  7 Oct 2016 21:23:12 -0700	[thread overview]
Message-ID: <1475900595-8375-2-git-send-email-bjorn.andersson@linaro.org> (raw)
In-Reply-To: <1475900595-8375-1-git-send-email-bjorn.andersson@linaro.org>

Similar to other subsystems it's useful to provide a mechanism to force
a specific driver match on a device, so introduce this.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
 drivers/rpmsg/rpmsg_core.c | 3 +++
 include/linux/rpmsg.h      | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
index b6ea9ffa7381..087d4db896c8 100644
--- a/drivers/rpmsg/rpmsg_core.c
+++ b/drivers/rpmsg/rpmsg_core.c
@@ -315,6 +315,9 @@ static int rpmsg_dev_match(struct device *dev, struct device_driver *drv)
 	const struct rpmsg_device_id *ids = rpdrv->id_table;
 	unsigned int i;
 
+	if (rpdev->driver_override)
+		return !strcmp(rpdev->driver_override, drv->name);
+
 	if (ids)
 		for (i = 0; ids[i].name[0]; i++)
 			if (rpmsg_id_match(rpdev, &ids[i]))
diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h
index 452d393cc8dd..7ad6c205f110 100644
--- a/include/linux/rpmsg.h
+++ b/include/linux/rpmsg.h
@@ -64,6 +64,7 @@ struct rpmsg_channel_info {
  * rpmsg_device - device that belong to the rpmsg bus
  * @dev: the device struct
  * @id: device id (used to match between rpmsg drivers and devices)
+ * @driver_override: driver name to force a match
  * @src: local address
  * @dst: destination address
  * @ept: the rpmsg endpoint of this channel
@@ -72,6 +73,7 @@ struct rpmsg_channel_info {
 struct rpmsg_device {
 	struct device dev;
 	struct rpmsg_device_id id;
+	char *driver_override;
 	u32 src;
 	u32 dst;
 	struct rpmsg_endpoint *ept;
-- 
2.5.0

  reply	other threads:[~2016-10-08  4:23 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-08  4:23 [PATCH 1/5] rpmsg: smd: Reduce restrictions when finding channel Bjorn Andersson
2016-10-08  4:23 ` Bjorn Andersson
2016-10-08  4:23 ` Bjorn Andersson [this message]
2016-10-08  4:23   ` [PATCH 2/5] rpmsg: Introduce a driver override mechanism Bjorn Andersson
2016-10-08  4:23 ` [PATCH 3/5] rpmsg: Support drivers without primary endpoint Bjorn Andersson
2016-10-08  4:23   ` Bjorn Andersson
2016-10-08  4:23 ` [PATCH 4/5] rpmsg: Driver for user space endpoint interface Bjorn Andersson
2016-10-08  4:23   ` Bjorn Andersson
2016-10-10  9:00   ` Marek Novak
2016-10-10  9:00     ` Marek Novak
2016-10-10  9:00     ` Marek Novak
2016-10-10  9:00     ` Marek Novak
2016-10-11  7:46   ` loic pallardy
2016-10-11  7:46     ` loic pallardy
2016-10-11  7:46     ` loic pallardy
2016-10-11 16:36     ` Bjorn Andersson
2016-10-11 16:36       ` Bjorn Andersson
2016-10-11 16:36       ` Bjorn Andersson
2016-10-08  4:23 ` [PATCH 5/5] rpmsg: smd: Register rpmsg user space interface for edges Bjorn Andersson
2016-10-08  4:23   ` Bjorn Andersson

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