Re: [PATCH 1/8] mailbox: introduce ARM SMC based mailbox

From	Jassi Brar <jassisinghbrar@gmail.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 1/8] mailbox: introduce ARM SMC based mailbox
Date	2017-07-24 20:10 +0200
Message-ID	<u6PXP-8ue-17@gated-at.bofh.it> (permalink)
References	(1 earlier) <tY2rg-4Tg-19@gated-at.bofh.it> <tYG5k-5za-1@gated-at.bofh.it> <u6ytX-5og-1@gated-at.bofh.it> <u6Pl7-7Zl-11@gated-at.bofh.it> <u6PEu-87k-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Mon, Jul 24, 2017 at 11:08 PM, Sudeep Holla <sudeep.holla@arm.com> wrote:
> On 24/07/17 18:20, Jassi Brar wrote:

>>
>>> I see that the SCPI firmware driver (as the user of the mailbox API) is
>>> expecting the return value from a0 as returned above, translating the
>>> firmware error codes into Linux' ones.
>>>
>> I am afraid, SCPI driver is not the golden example for client drivers
>> to follow. It is supposed to work only with MHU, and then, it is
>> likely to break if some other protocol is running parallel to it.
>>
>
> Not sure why do you say it works only with ARM MHU ? AmLogic uses it
> with their mailbox driver. However they followed an interim version of
> the SCPI spec which is termed "legacy" in the driver.
>
Screw coding... Just tell me what stuff do you smoke? Must be really good!

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Re: [PATCH 1/8] mailbox: introduce ARM SMC based mailbox André Przywara <andre.przywara@arm.com> - 2017-07-24 01:30 +0200
  Re: [PATCH 1/8] mailbox: introduce ARM SMC based mailbox Jassi Brar <jassisinghbrar@gmail.com> - 2017-07-24 19:30 +0200
    Re: [PATCH 1/8] mailbox: introduce ARM SMC based mailbox Sudeep Holla <sudeep.holla@arm.com> - 2017-07-24 19:50 +0200
      Re: [PATCH 1/8] mailbox: introduce ARM SMC based mailbox Jassi Brar <jassisinghbrar@gmail.com> - 2017-07-24 20:10 +0200

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