Thanks Greg and Vinod for the reviews
-static int intel_master_probe(struct platform_device *pdev)
+static int intel_link_probe(struct auxiliary_device *auxdev, const struct auxiliary_device_id *id)
{
- struct device *dev = &pdev->dev;
+ struct device *dev = &auxdev->dev;
+ struct sdw_intel_link_dev *ldev = auxiliary_dev_to_sdw_intel_link_dev(auxdev);
Do we need another abstractions for resources here, why not aux dev
creation set the resources required and we skip this step...
Not sure what resources you are referring to?
this is just a container_of() and the documented way of extending the
auxbus (see
https://www.kernel.org/doc/html/latest/driver-api/auxiliary_bus.html#example-usage)
struct sdw_intel_link_dev {
struct auxiliary_device auxdev;
struct sdw_intel_link_res link_res;
};
#define auxiliary_dev_to_sdw_intel_link_dev(auxiliary_dev) \
container_of(auxiliary_dev, struct sdw_intel_link_dev, auxdev)
struct sdw_intel *sdw;
struct sdw_cdns *cdns;
struct sdw_bus *bus;
@@ -1346,14 +1347,14 @@ static int intel_master_probe(struct platform_device *pdev)
cdns = &sdw->cdns;
bus = &cdns->bus;
- sdw->instance = pdev->id;
- sdw->link_res = dev_get_platdata(dev);
+ sdw->instance = auxdev->id;
so auxdev has id and still we pass id as argument :( Not sure if folks
can fix this now
That's odd, yeah, it should be fixed.
I think we are talking about different things?
this is defined in mod_devicetable.h:
struct auxiliary_device_id {
char name[AUXILIARY_NAME_SIZE];
kernel_ulong_t driver_data;
};
and used for the driver probe:
ret = auxdrv->probe(auxdev, auxiliary_match_id(auxdrv->id_table, auxdev));
but there is a separate id:
struct auxiliary_device {
struct device dev;
const char *name;
u32 id;
};
which is set during the device initialization in intel_init.c
/* we don't use an IDA since we already have a link ID */
auxdev->id = link_id;
In the auxiliary bus design, the parent has to take care of managing
this id, be it with an IDA or as we do here with a physical link ID that
is unique.
in short, I don't see how I could change the code given the differences
in concepts?
