Re: [PATCH 10/10] dmaengine: qcom_hidma: add MSI support for interrupts

From	okaya@codeaurora.org
Newsgroups	linux.kernel
Subject	Re: [PATCH 10/10] dmaengine: qcom_hidma: add MSI support for interrupts
Date	2016-08-08 13:50 +0200
Message-ID	<s3Re9-Tb-3@gated-at.bofh.it> (permalink)
References	(2 earlier) <rYleV-4z8-3@gated-at.bofh.it> <rYsJr-AK-9@gated-at.bofh.it> <s2q6m-DV-31@gated-at.bofh.it> <s2rvr-1NC-3@gated-at.bofh.it> <s3NNg-7fc-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On 2016-08-08 04:14, Vinod Koul wrote:
> On Thu, Aug 04, 2016 at 09:59:43AM -0400, Sinan Kaya wrote:
>> On 8/4/2016 8:46 AM, Vinod Koul wrote:
>> >> > Yes, I do have a new device ID for platforms with MSI capability.
>> >> >
>> >> > Which new binding are you referring to?
>> > If you have "QCOM8062" why do you need DT to tell hidma-1.1 ?
>> 
>> Unfortunately, DT cannot do a binding with the ACPI names. Similarly, 
>> ACPI
>> cannot do a binding with the DT name.
>> 
>> The structure of binding name is also subject to different kind of 
>> rules
>> for DT and ACPI.
>> 
>> This driver supports both device tree and ACPI. That's why, two 
>> different
>> names are required.
> 
> Hmmm, wasn't the who get_property stuff supposed to make properties 
> work on
> both ACPi & DT. I am not sure though about the current state of affairs 
> on
> that.


Get property works. It is able to abstract device driver properties. A 
driver doesn't need to know whether it is coming from acpi dsd or of.

However, no such mechanism exists for driver names due to nature of 
different naming requirements.

Of has its own match table and acpi has its own. Acpi also has 
ridiculous 8 character name limitation.

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

Re: [PATCH 10/10] dmaengine: qcom_hidma: add MSI support for  interrupts Vinod Koul <vinod.koul@intel.com> - 2016-08-04 14:40 +0200
  Re: [PATCH 10/10] dmaengine: qcom_hidma: add MSI support for  interrupts Sinan Kaya <okaya@codeaurora.org> - 2016-08-04 16:10 +0200
    Re: [PATCH 10/10] dmaengine: qcom_hidma: add MSI support for  interrupts Vinod Koul <vinod.koul@intel.com> - 2016-08-08 10:10 +0200
      Re: [PATCH 10/10] dmaengine: qcom_hidma: add MSI support for  interrupts okaya@codeaurora.org - 2016-08-08 13:50 +0200

csiph-web