linux-kernel - RE: [PATCH V4 3/5] mailbox: imx: add imx mu support

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Message-ID: <AM0PR04MB42112EEF9BC36AD54C1B90CC80590@AM0PR04MB4211.eurprd04.prod.outlook.com>
Date:   Thu, 12 Jul 2018 04:06:49 +0000
From:   "A.s. Dong" <aisheng.dong@....com>
To:     Jassi Brar <jassisinghbrar@...il.com>
CC:     Sascha Hauer <s.hauer@...gutronix.de>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "dongas86@...il.com" <dongas86@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Oleksij Rempel <o.rempel@...gutronix.de>,
        dl-linux-imx <linux-imx@....com>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>
Subject: RE: [PATCH V4 3/5] mailbox: imx: add imx mu support

Hi Jassi,

> -----Original Message-----
> From: Jassi Brar [mailto:jassisinghbrar@...il.com]
> Sent: Thursday, July 12, 2018 1:01 AM
> To: A.s. Dong <aisheng.dong@....com>
> Cc: Sascha Hauer <s.hauer@...gutronix.de>; linux-arm-
> kernel@...ts.infradead.org; dongas86@...il.com; linux-
> kernel@...r.kernel.org; Oleksij Rempel <o.rempel@...gutronix.de>; dl-
> linux-imx <linux-imx@....com>; kernel@...gutronix.de; Fabio Estevam
> <fabio.estevam@....com>; shawnguo@...nel.org
> Subject: Re: [PATCH V4 3/5] mailbox: imx: add imx mu support

....

> >
> > bcm seems is using peek to receive data, not only checking the data
> > availability, right?
> > drivers/mailbox/bcm-flexrm-mailbox.c
> >
> As I said, if fetching data from remote don't need to sleep, you can call
> mbox_chan_received_data() from peek(). Otherwise not.

Got it. So it seems work for i.MX.
Thanks.

Regards
Dong Aisheng