| Message ID | 1512188864-773-5-git-send-email-okaya@codeaurora.org |
|---|---|
| State | Changes Requested, archived |
| Headers | show |
| Series | dmaengine: qcom_hidma: add support for bugfixed HW | expand |
On Fri, Dec 1, 2017 at 10:27 PM, Sinan Kaya <okaya@codeaurora.org> wrote: > Now that we have a get_match_data() callback as part of the firmware node, > implement the OF specific piece for it. > > Signed-off-by: Sinan Kaya <okaya@codeaurora.org> > --- > drivers/of/property.c | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > > diff --git a/drivers/of/property.c b/drivers/of/property.c > index 264c355..adcde1a 100644 > --- a/drivers/of/property.c > +++ b/drivers/of/property.c > @@ -981,6 +981,22 @@ static int of_fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode, > return 0; > } > > +void *of_fwnode_get_match_data(const struct fwnode_handle *fwnode, > + const struct device_driver *drv) > +{ > + const struct device_node *node = to_of_node(fwnode); > + const struct of_device_id *match; > + > + if (!node) > + return NULL; of_match_node checks this. > + > + match = of_match_node(drv->of_match_table, node); > + if (!match) > + return NULL; > + > + return (void *)match->data; Don't need a cast here. of_device_get_match_data() already does most of this, but getting a device ptr from fwnode_handle may not be possible? Rob -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 12/4/2017 11:23 AM, Rob Herring wrote: > On Fri, Dec 1, 2017 at 10:27 PM, Sinan Kaya <okaya@codeaurora.org> wrote: >> Now that we have a get_match_data() callback as part of the firmware node, >> implement the OF specific piece for it. >> >> Signed-off-by: Sinan Kaya <okaya@codeaurora.org> >> --- >> drivers/of/property.c | 17 +++++++++++++++++ >> 1 file changed, 17 insertions(+) >> .. >> >> +void *of_fwnode_get_match_data(const struct fwnode_handle *fwnode, >> + const struct device_driver *drv) >> +{ >> + const struct device_node *node = to_of_node(fwnode); >> + const struct of_device_id *match; >> + >> + if (!node) >> + return NULL; > > of_match_node checks this. I see a check for the matches argument but not for the node argument. Am I missing something? > >> + >> + match = of_match_node(drv->of_match_table, node); >> + if (!match) >> + return NULL; >> + >> + return (void *)match->data; > > Don't need a cast here. I can fix this. > > of_device_get_match_data() already does most of this, but getting a > device ptr from fwnode_handle may not be possible? I couldn't figure out how to do that. Do you have a suggestion? I have been looking for examples with no luck. > > Rob >
On Mon, Dec 04, 2017 at 01:05:51PM -0500, Sinan Kaya wrote: > On 12/4/2017 11:23 AM, Rob Herring wrote: > > On Fri, Dec 1, 2017 at 10:27 PM, Sinan Kaya <okaya@codeaurora.org> wrote: > >> Now that we have a get_match_data() callback as part of the firmware node, > >> implement the OF specific piece for it. > >> > >> Signed-off-by: Sinan Kaya <okaya@codeaurora.org> > >> --- > >> drivers/of/property.c | 17 +++++++++++++++++ > >> 1 file changed, 17 insertions(+) > >> > .. > > >> > >> +void *of_fwnode_get_match_data(const struct fwnode_handle *fwnode, > >> + const struct device_driver *drv) > >> +{ > >> + const struct device_node *node = to_of_node(fwnode); > >> + const struct of_device_id *match; > >> + > >> + if (!node) > >> + return NULL; > > > > of_match_node checks this. > > I see a check for the matches argument but not for the node argument. > Am I missing something? Ah yes, you are right. > > > > >> + > >> + match = of_match_node(drv->of_match_table, node); > >> + if (!match) > >> + return NULL; > >> + > >> + return (void *)match->data; > > > > Don't need a cast here. > > I can fix this. > > > > > of_device_get_match_data() already does most of this, but getting a > > device ptr from fwnode_handle may not be possible? > > I couldn't figure out how to do that. Do you have a suggestion? > I have been looking for examples with no luck. Change the property API to pass struct device instead. That's maybe not worth it. Rob -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/of/property.c b/drivers/of/property.c index 264c355..adcde1a 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -981,6 +981,22 @@ static int of_fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode, return 0; } +void *of_fwnode_get_match_data(const struct fwnode_handle *fwnode, + const struct device_driver *drv) +{ + const struct device_node *node = to_of_node(fwnode); + const struct of_device_id *match; + + if (!node) + return NULL; + + match = of_match_node(drv->of_match_table, node); + if (!match) + return NULL; + + return (void *)match->data; +} + const struct fwnode_operations of_fwnode_ops = { .get = of_fwnode_get, .put = of_fwnode_put, @@ -996,5 +1012,6 @@ static int of_fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode, .graph_get_remote_endpoint = of_fwnode_graph_get_remote_endpoint, .graph_get_port_parent = of_fwnode_graph_get_port_parent, .graph_parse_endpoint = of_fwnode_graph_parse_endpoint, + .get_match_data = of_fwnode_get_match_data, }; EXPORT_SYMBOL_GPL(of_fwnode_ops);
Now that we have a get_match_data() callback as part of the firmware node, implement the OF specific piece for it. Signed-off-by: Sinan Kaya <okaya@codeaurora.org> --- drivers/of/property.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)