linux-kernel - RE: [EXT] Re: [PATCH V7 2/4] firmware: imx: enable imx scu general irq function

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Message-ID: <AM0PR04MB4211816EDBEF23F7B330CCCB80280@AM0PR04MB4211.eurprd04.prod.outlook.com>
Date:   Fri, 12 Apr 2019 02:25:42 +0000
From:   Aisheng Dong <aisheng.dong@....com>
To:     Anson Huang <anson.huang@....com>, Shawn Guo <shawnguo@...nel.org>,
        "alexandre.belloni@...tlin.com" <alexandre.belloni@...tlin.com>
CC:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        "a.zummo@...ertech.it" <a.zummo@...ertech.it>,
        "alexandre.belloni@...tlin.com" <alexandre.belloni@...tlin.com>,
        "ulf.hansson@...aro.org" <ulf.hansson@...aro.org>,
        "sboyd@...nel.org" <sboyd@...nel.org>, Peng Fan <peng.fan@....com>,
        Daniel Baluta <daniel.baluta@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-rtc@...r.kernel.org" <linux-rtc@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>
Subject: RE: [EXT] Re: [PATCH V7 2/4] firmware: imx: enable imx scu general
 irq function

> From: Anson Huang
> Sent: Friday, April 12, 2019 9:06 AM
> 
> Hello, Alexandre
> 	As i.MX SCU general irq function is picked up by Shawn, could you please
> also pick up below i.MX SC RTC alarm support patch ?
> 	https://patchwork.kernel.org/patch/10890525/
> 

No, it can't go through Alexandre's tree due to dependency issue.

Shawn,
Do you think you can pick it up? Alexandre already gave the Ack.

AFAIK there's no other SCU RTC patches since v5.1-rc1 in Alexandre's tree.

Regards
Dong Aisheng

> > On Tue, Apr 09, 2019 at 04:59:55AM +0000, Anson Huang wrote:
> > > The System Controller Firmware (SCFW) controls RTC, thermal and WDOG
> > > etc., these resources' interrupt function are managed by SCU. When
> > > any IRQ pending, SCU will notify Linux via MU general interrupt
> > > channel #3, and Linux kernel needs to call SCU APIs to get IRQ
> > > status and notify each module to handle the interrupt.
> > >
> > > Since there is no data transmission for SCU IRQ notification, so
> > > doorbell mode is used for this MU channel, and SCU driver will use
> > > notifier mechanism to broadcast to every module which registers the
> > > SCU block notifier.
> > >
> > > Signed-off-by: Anson Huang <Anson.Huang@....com>
> > > Reviewed-by: Dong Aisheng <aisheng.dong@....com>
> >
> > Applied, thanks.