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From:   Ioana Ciornei <ioana.ciornei@nxp.com>
To:     Leo Li <leoyang.li@nxp.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-arm-kernel@lists.infradead.org" 
        <linux-arm-kernel@lists.infradead.org>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>
CC:     Laurentiu Tudor <laurentiu.tudor@nxp.com>,
        Horia Geanta <horia.geanta@nxp.com>,
        Ioana Ciocoi Radulescu <ruxandra.radulescu@nxp.com>,
        Roy Pledge <roy.pledge@nxp.com>,
        Ioana Ciornei <ioana.ciornei@nxp.com>
Subject: [PATCH 3/5] soc: fsl: dpio: store a backpointer to the device backing
 the dpaa2_io
Thread-Topic: [PATCH 3/5] soc: fsl: dpio: store a backpointer to the device
 backing the dpaa2_io
Thread-Index: AQHUkKhuPbioaeRTqk6l3vGVtHGdEQ==
Date:   Mon, 10 Dec 2018 16:50:18 +0000
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Add a new field in the dpaa2_io structure to hold a backpointer to the
actual DPIO device.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
---
 drivers/soc/fsl/dpio/dpio-driver.c  | 2 +-
 drivers/soc/fsl/dpio/dpio-service.c | 7 ++++++-
 include/soc/fsl/dpaa2-io.h          | 3 ++-
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/fsl/dpio/dpio-driver.c b/drivers/soc/fsl/dpio/dpio=
-driver.c
index 5286723..2d4af32 100644
--- a/drivers/soc/fsl/dpio/dpio-driver.c
+++ b/drivers/soc/fsl/dpio/dpio-driver.c
@@ -176,7 +176,7 @@ static int dpaa2_dpio_probe(struct fsl_mc_device *dpio_=
dev)
 	if (err)
 		goto err_register_dpio_irq;
=20
-	priv->io =3D dpaa2_io_create(&desc);
+	priv->io =3D dpaa2_io_create(&desc, dev);
 	if (!priv->io) {
 		dev_err(dev, "dpaa2_io_create failed\n");
 		err =3D -ENOMEM;
diff --git a/drivers/soc/fsl/dpio/dpio-service.c b/drivers/soc/fsl/dpio/dpi=
o-service.c
index 5583d28..87e01710 100644
--- a/drivers/soc/fsl/dpio/dpio-service.c
+++ b/drivers/soc/fsl/dpio/dpio-service.c
@@ -27,6 +27,7 @@ struct dpaa2_io {
 	/* protect notifications list */
 	spinlock_t lock_notifications;
 	struct list_head notifications;
+	struct device *dev;
 };
=20
 struct dpaa2_io_store {
@@ -98,13 +99,15 @@ struct dpaa2_io *dpaa2_io_service_select(int cpu)
 /**
  * dpaa2_io_create() - create a dpaa2_io object.
  * @desc: the dpaa2_io descriptor
+ * @dev: the actual DPIO device
  *
  * Activates a "struct dpaa2_io" corresponding to the given config of an a=
ctual
  * DPIO object.
  *
  * Return a valid dpaa2_io object for success, or NULL for failure.
  */
-struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc)
+struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc,
+				 struct device *dev)
 {
 	struct dpaa2_io *obj =3D kmalloc(sizeof(*obj), GFP_KERNEL);
=20
@@ -146,6 +149,8 @@ struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_=
desc *desc)
 		dpio_by_cpu[desc->cpu] =3D obj;
 	spin_unlock(&dpio_list_lock);
=20
+	obj->dev =3D dev;
+
 	return obj;
 }
=20
diff --git a/include/soc/fsl/dpaa2-io.h b/include/soc/fsl/dpaa2-io.h
index e11eed1..5b5ba26 100644
--- a/include/soc/fsl/dpaa2-io.h
+++ b/include/soc/fsl/dpaa2-io.h
@@ -57,7 +57,8 @@ struct dpaa2_io_desc {
 	u32 qman_version;
 };
=20
-struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc);
+struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc,
+				 struct device *dev);
=20
 void dpaa2_io_down(struct dpaa2_io *d);
=20
--=20
1.9.1