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soc: fsl: dpio: store a backpointer to the device backing the dpaa2_io

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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>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
This commit is contained in:
Ioana Ciornei 2018-12-10 16:50:18 +00:00 committed by Li Yang
parent 9182ee2840
commit cf9ff75d15
3 changed files with 9 additions and 3 deletions
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2
drivers/soc/fsl/dpio/dpio-driver.c
View File

@ -176,7 +176,7 @@ static int dpaa2_dpio_probe(struct fsl_mc_device *dpio_dev)
if (err)
goto err_register_dpio_irq;
priv->io = dpaa2_io_create(&desc);
priv->io = dpaa2_io_create(&desc, dev);
if (!priv->io) {
dev_err(dev, "dpaa2_io_create failed\n");
err = -ENOMEM;

7
drivers/soc/fsl/dpio/dpio-service.c
View File

@ -27,6 +27,7 @@ struct dpaa2_io {
/* protect notifications list */
spinlock_t lock_notifications;
struct list_head notifications;
struct device *dev;
};
struct dpaa2_io_store {
@ -98,13 +99,15 @@ EXPORT_SYMBOL_GPL(dpaa2_io_service_select);
/**
* 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 actual
* 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 = kmalloc(sizeof(*obj), GFP_KERNEL);
@ -146,6 +149,8 @@ struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc)
dpio_by_cpu[desc->cpu] = obj;
spin_unlock(&dpio_list_lock);
obj->dev = dev;
return obj;
}

3
include/soc/fsl/dpaa2-io.h
View File

@ -57,7 +57,8 @@ struct dpaa2_io_desc {
u32 qman_version;
};
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);
void dpaa2_io_down(struct dpaa2_io *d);