linux-kernel - Re: [PATCHv7 0/5] Common Mailbox Framework

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Message-ID: <1404144980.6148.6.camel@hobbes>
Date:	Mon, 30 Jun 2014 18:16:20 +0200
From:	Lubomir Rintel <lkundrak@...sk>
To:	Jassi Brar <jaswinder.singh@...aro.org>
Cc:	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	mporter@...aro.org, patches@...aro.org, bjorn@...o.se,
	ashwin.chaugule@...aro.org, gregkh@...uxfoundation.org,
	s-anna@...com, loic.pallardy@...com, lftan.linux@...il.com,
	slapdau@...oo.com.au, courtney.cavin@...ymobile.com, pa@...per.es
Subject: Re: [PATCHv7 0/5] Common Mailbox Framework

Hi Jassi,

On Thu, 2014-06-12 at 22:28 +0530, Jassi Brar wrote:
> Hello,
>   Here is the next revision of Mailbox framwork.

I'm wondering whether you keep a Git tree with the framework we could
keep the Raspberry Pi mailbox driver based on (bcm2835-mbox)?

Also, from look at the API it does not seem to me that it's possible to
synchronously (that is without a tx_done callback) collect a response
when a message is sent with tx_block enabled. Equivalent to this: [1]

	bcm_mailbox_write(MBOX_CHAN_FB, vc4->mode_set_cmd_addr);
	bcm_mailbox_read(MBOX_CHAN_FB, &val);

[1] https://github.com/anholt/linux/commit/d6276826c1e94d942bd9f9dd4586b52197f13fb7#diff-fe03b88eaabd67668dcf9e116346793fR184

What's your opinion on that?

Regards,
Lubo

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