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soc: fsl: dpio: add a device_link at dpaa2_io_service_register

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Automatically add a device link between the actual device requesting the
dpaa2_io_service_register and the underlying dpaa2_io used. This link
will ensure that when a DPIO device, which is indirectly used by other
devices, is unbound any consumer devices will be also unbound from their
drivers.

For example, any DPNI, bound to the dpaa2-eth driver, which is using
DPIO devices will be unbound before its supplier device.

Also, add a new parameter to the dpaa2_io_service_[de]register functions
to specify the requesting device (ie the consumer).

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Horia Geanta <horia.geanta@nxp.com>
Reviewed-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
This commit is contained in:
Ioana Ciornei
2018-12-10 16:50:19 +00:00
committed by Li Yang
parent cf9ff75d15
commit 47441f7f73
4 changed files with 26 additions and 11 deletions
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6
include/soc/fsl/dpaa2-io.h
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@@ -94,9 +94,11 @@ struct dpaa2_io_notification_ctx {
int dpaa2_io_get_cpu(struct dpaa2_io *d);
int dpaa2_io_service_register(struct dpaa2_io *service,
struct dpaa2_io_notification_ctx *ctx);
struct dpaa2_io_notification_ctx *ctx,
struct device *dev);
void dpaa2_io_service_deregister(struct dpaa2_io *service,
struct dpaa2_io_notification_ctx *ctx);
struct dpaa2_io_notification_ctx *ctx,
struct device *dev);
int dpaa2_io_service_rearm(struct dpaa2_io *service,
struct dpaa2_io_notification_ctx *ctx);