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SubjectRe: [PATCH v2 01/17] rpmsg: Enable matching devices with drivers based on DT
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On 09/08/2016 09:30 PM, Bjorn Andersson wrote:
> On Wed 07 Sep 18:46 PDT 2016, spjoshi@codeaurora.org wrote:
>
>> On 2016-09-01 15:27, Bjorn Andersson wrote:
>>> Make it possible to match rpmsg devices based on device tree node, in
>>> addition to the id table. In some of these cases the rpmsg driver would
>>> not have a id_table, so make this optional.
>>>
>>> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
>>> ---
>>>
>>> Changes since v1:
>>> - None
>>>
>>> drivers/rpmsg/virtio_rpmsg_bus.c | 10 ++++++----
>>> 1 file changed, 6 insertions(+), 4 deletions(-)
>>>
>>> diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c
>>> b/drivers/rpmsg/virtio_rpmsg_bus.c
>>> index 4a4374cc6a59..495fa0a282d3 100644
>>> --- a/drivers/rpmsg/virtio_rpmsg_bus.c
>>> +++ b/drivers/rpmsg/virtio_rpmsg_bus.c
>>> @@ -33,6 +33,7 @@
>>> #include <linux/wait.h>
>>> #include <linux/rpmsg.h>
>>> #include <linux/mutex.h>
>>> +#include <linux/of_device.h>
>>>
>>> /**
>>> * struct virtproc_info - virtual remote processor state
>>> @@ -175,11 +176,12 @@ static int rpmsg_dev_match(struct device *dev,
>>> struct device_driver *drv)
>>> const struct rpmsg_device_id *ids = rpdrv->id_table;
>>> unsigned int i;
>>>
>>> - for (i = 0; ids[i].name[0]; i++)
>>> - if (rpmsg_id_match(rpdev, &ids[i]))
>>> - return 1;
>>> + if (ids)
>>> + for (i = 0; ids[i].name[0]; i++)
>>> + if (rpmsg_id_match(rpdev, &ids[i]))
>>> + return 1;
>>>
>>> - return 0;
>>> + return of_driver_match_device(dev, drv);
>>
>> Do we care falling back to acpi_driver_match_device if
>> of_driver_match_device fails (something similar to what platform_match
>> does)?
>>
>
> I'm not sure how this would look in the case of ACPI, so I would prefer
> if we defer that until such case arise.

Makes sense.

>
> Regards,
> Bjorn
>

Adding Reviewed-by tag:

Reviewed-by: Sarangdhar Joshi <spjoshi@codeaurora.org>

--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

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