From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>,
Chen Yu <chenyu56@huawei.com>, Jun Li <jun.li@nxp.com>,
Hans de Goede <hdegoede@redhat.com>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 7/9] usb: typec: Find the ports by also matching against the device node
Date: Wed, 30 Jan 2019 19:02:57 +0300 [thread overview]
Message-ID: <20190130160259.46919-8-heikki.krogerus@linux.intel.com> (raw)
In-Reply-To: <20190130160259.46919-1-heikki.krogerus@linux.intel.com>
When the connections are defined in firmware, struct
device_connection will have the fwnode member pointing to
the device node (struct fwnode_handle) of the requested
device, and the endpoint will not be used at all in that
case.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
---
drivers/usb/typec/class.c | 24 +++++++++++++++++++++---
1 file changed, 21 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index f50278dbef59..88adf0eaad34 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -9,6 +9,7 @@
#include <linux/device.h>
#include <linux/module.h>
#include <linux/mutex.h>
+#include <linux/property.h>
#include <linux/slab.h>
#include "bus.h"
@@ -204,15 +205,32 @@ static void typec_altmode_put_partner(struct altmode *altmode)
put_device(&adev->dev);
}
-static int __typec_port_match(struct device *dev, const void *name)
+static int typec_port_fwnode_match(struct device *dev, const void *fwnode)
+{
+ return dev_fwnode(dev) == fwnode;
+}
+
+static int typec_port_name_match(struct device *dev, const void *name)
{
return !strcmp((const char *)name, dev_name(dev));
}
static void *typec_port_match(struct device_connection *con, int ep, void *data)
{
- return class_find_device(typec_class, NULL, con->endpoint[ep],
- __typec_port_match);
+ struct device *dev;
+
+ /*
+ * FIXME: Check does the fwnode supports the requested SVID. If it does
+ * we need to return ERR_PTR(-PROBE_DEFER) when there is no device.
+ */
+ if (con->fwnode)
+ return class_find_device(typec_class, NULL, con->fwnode,
+ typec_port_fwnode_match);
+
+ dev = class_find_device(typec_class, NULL, con->endpoint[ep],
+ typec_port_name_match);
+
+ return dev ? dev : ERR_PTR(-EPROBE_DEFER);
}
struct typec_altmode *
--
2.20.1
next prev parent reply other threads:[~2019-01-30 16:03 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-30 16:02 [PATCH v2 0/9] device connection: Add support for device graphs Heikki Krogerus
2019-01-30 16:02 ` [PATCH v2 1/9] platform/x86: intel_cht_int33fe: Prepare for better mux naming scheme Heikki Krogerus
2019-01-30 16:02 ` [PATCH v2 2/9] usb: typec: Rationalize the API for the muxes Heikki Krogerus
2019-01-30 16:02 ` [PATCH v2 3/9] platform/x86: intel_cht_int33fe: Remove old style mux connections Heikki Krogerus
2019-01-30 16:02 ` [PATCH v2 4/9] device connection: Add fwnode member to struct device_connection Heikki Krogerus
2019-01-30 16:02 ` [PATCH v2 5/9] usb: typec: mux: Find the muxes by also matching against the device node Heikki Krogerus
2019-01-30 16:02 ` [PATCH v2 6/9] usb: roles: " Heikki Krogerus
2019-02-11 9:58 ` Jun Li
2019-02-11 10:46 ` Heikki Krogerus
2019-02-11 12:40 ` Heikki Krogerus
2019-02-12 6:03 ` Jun Li
2019-02-12 8:50 ` Heikki Krogerus
2019-02-12 10:41 ` Jun Li
2019-02-12 11:24 ` Heikki Krogerus
2019-01-30 16:02 ` Heikki Krogerus [this message]
2019-01-30 16:51 ` [PATCH v2 7/9] usb: typec: Find the ports " Andy Shevchenko
2019-01-31 13:35 ` Heikki Krogerus
2019-02-11 8:39 ` Heikki Krogerus
2019-02-11 11:52 ` Andy Shevchenko
2019-01-30 16:02 ` [PATCH v2 8/9] device connection: Prepare support for firmware described connections Heikki Krogerus
2019-01-30 16:02 ` [PATCH v2 9/9] device connection: Find device connections also from device graphs Heikki Krogerus
2019-01-31 10:06 ` [PATCH v2 0/9] device connection: Add support for " Hans de Goede
2019-01-31 13:36 ` Heikki Krogerus
2019-02-12 10:44 ` Jun Li
2019-02-12 11:31 ` Heikki Krogerus
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