| Message ID | 20201104232356.4038506-14-saravanak@google.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v1,01/18] Revert "driver core: Avoid deferred probe due to fw_devlink_pause/resume()" | expand |
On Thu, Nov 5, 2020 at 12:24 AM Saravana Kannan <saravanak@google.com> wrote: > > Given a fwnode, this function finds the closest ancestor fwnode that has > a corresponding struct device. The function returns this struct device. > This function will be used in a subsequent patch in this series. > > Signed-off-by: Saravana Kannan <saravanak@google.com> I would combine this one with patch [10/18]. > --- > drivers/base/core.c | 25 +++++++++++++++++++++++++ > 1 file changed, 25 insertions(+) > > diff --git a/drivers/base/core.c b/drivers/base/core.c > index ee28d8c7ee85..4ae5f2885ac5 100644 > --- a/drivers/base/core.c > +++ b/drivers/base/core.c > @@ -1562,6 +1562,31 @@ static void fw_devlink_parse_fwtree(struct fwnode_handle *fwnode) > fw_devlink_parse_fwtree(child); > } > > +/** > + * fwnode_get_next_parent_dev - Find device of closest ancestor fwnode > + * @fwnode: firmware node > + * > + * Given a firmware node (@fwnode), this function finds its closest ancestor > + * firmware node that has a corresponding struct device and returns that struct > + * device. > + * > + * The caller of this function is expected to call put_device() on the returned > + * device when they are done. > + */ > +static struct device *fwnode_get_next_parent_dev(struct fwnode_handle *fwnode) > +{ > + struct device *dev = NULL; > + > + fwnode_handle_get(fwnode); > + do { > + fwnode = fwnode_get_next_parent(fwnode); > + if (fwnode) > + dev = get_dev_from_fwnode(fwnode); > + } while (fwnode && !dev); > + fwnode_handle_put(fwnode); > + return dev; > +} > + > static void fw_devlink_link_device(struct device *dev) > { > int fw_ret; > -- > 2.29.1.341.ge80a0c044ae-goog >
On Mon, Nov 16, 2020 at 8:27 AM Rafael J. Wysocki <rafael@kernel.org> wrote: > > On Thu, Nov 5, 2020 at 12:24 AM Saravana Kannan <saravanak@google.com> wrote: > > > > Given a fwnode, this function finds the closest ancestor fwnode that has > > a corresponding struct device. The function returns this struct device. > > This function will be used in a subsequent patch in this series. > > > > Signed-off-by: Saravana Kannan <saravanak@google.com> > > I would combine this one with patch [10/18]. Ack. -Saravana -Saravana > > > --- > > drivers/base/core.c | 25 +++++++++++++++++++++++++ > > 1 file changed, 25 insertions(+) > > > > diff --git a/drivers/base/core.c b/drivers/base/core.c > > index ee28d8c7ee85..4ae5f2885ac5 100644 > > --- a/drivers/base/core.c > > +++ b/drivers/base/core.c > > @@ -1562,6 +1562,31 @@ static void fw_devlink_parse_fwtree(struct fwnode_handle *fwnode) > > fw_devlink_parse_fwtree(child); > > } > > > > +/** > > + * fwnode_get_next_parent_dev - Find device of closest ancestor fwnode > > + * @fwnode: firmware node > > + * > > + * Given a firmware node (@fwnode), this function finds its closest ancestor > > + * firmware node that has a corresponding struct device and returns that struct > > + * device. > > + * > > + * The caller of this function is expected to call put_device() on the returned > > + * device when they are done. > > + */ > > +static struct device *fwnode_get_next_parent_dev(struct fwnode_handle *fwnode) > > +{ > > + struct device *dev = NULL; > > + > > + fwnode_handle_get(fwnode); > > + do { > > + fwnode = fwnode_get_next_parent(fwnode); > > + if (fwnode) > > + dev = get_dev_from_fwnode(fwnode); > > + } while (fwnode && !dev); > > + fwnode_handle_put(fwnode); > > + return dev; > > +} > > + > > static void fw_devlink_link_device(struct device *dev) > > { > > int fw_ret; > > -- > > 2.29.1.341.ge80a0c044ae-goog > >
diff --git a/drivers/base/core.c b/drivers/base/core.c index ee28d8c7ee85..4ae5f2885ac5 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -1562,6 +1562,31 @@ static void fw_devlink_parse_fwtree(struct fwnode_handle *fwnode) fw_devlink_parse_fwtree(child); } +/** + * fwnode_get_next_parent_dev - Find device of closest ancestor fwnode + * @fwnode: firmware node + * + * Given a firmware node (@fwnode), this function finds its closest ancestor + * firmware node that has a corresponding struct device and returns that struct + * device. + * + * The caller of this function is expected to call put_device() on the returned + * device when they are done. + */ +static struct device *fwnode_get_next_parent_dev(struct fwnode_handle *fwnode) +{ + struct device *dev = NULL; + + fwnode_handle_get(fwnode); + do { + fwnode = fwnode_get_next_parent(fwnode); + if (fwnode) + dev = get_dev_from_fwnode(fwnode); + } while (fwnode && !dev); + fwnode_handle_put(fwnode); + return dev; +} + static void fw_devlink_link_device(struct device *dev) { int fw_ret;
Given a fwnode, this function finds the closest ancestor fwnode that has a corresponding struct device. The function returns this struct device. This function will be used in a subsequent patch in this series. Signed-off-by: Saravana Kannan <saravanak@google.com> --- drivers/base/core.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+)