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Date:   Mon, 1 Apr 2019 02:38:11 +0000
From:   Anson Huang <anson.huang@....com>
To:     Anson Huang <anson.huang@....com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "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>,
        Aisheng Dong <aisheng.dong@....com>,
        "ulf.hansson@...aro.org" <ulf.hansson@...aro.org>,
        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>
CC:     dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH V5 1/4] dt-bindings: fsl: scu: add general interrupt
 support

Ping...

Best Regards!
Anson Huang

> -----Original Message-----
> From: Anson Huang [mailto:Anson.Huang@....com]
> Sent: 2019年3月18日 11:10
> To: robh+dt@...nel.org; mark.rutland@....com; shawnguo@...nel.org;
> s.hauer@...gutronix.de; kernel@...gutronix.de; festevam@...il.com;
> a.zummo@...ertech.it; alexandre.belloni@...tlin.com; Aisheng Dong
> <aisheng.dong@....com>; ulf.hansson@...aro.org; Daniel Baluta
> <daniel.baluta@....com>; devicetree@...r.kernel.org; linux-
> kernel@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-
> rtc@...r.kernel.org
> Cc: dl-linux-imx <linux-imx@....com>
> Subject: [PATCH V5 1/4] dt-bindings: fsl: scu: add general interrupt support
> 
> Add scu general interrupt function support.
> 
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> Reviewed-by: Rob Herring <robh@...nel.org>
> Reviewed-by: Dong Aisheng <aisheng.dong@....com>
> ---
> Changes since V4:
> 	- add mu aliase info and example in binding doc.
> ---
>  .../devicetree/bindings/arm/freescale/fsl,scu.txt  | 29 +++++++++++++++++--
> ---
>  1 file changed, 23 insertions(+), 6 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> index 72d481c..5d7dbab 100644
> --- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> +++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
> @@ -22,9 +22,11 @@ Required properties:
>  -------------------
>  - compatible:	should be "fsl,imx-scu".
>  - mbox-names:	should include "tx0", "tx1", "tx2", "tx3",
> -			       "rx0", "rx1", "rx2", "rx3".
> -- mboxes:	List of phandle of 4 MU channels for tx and 4 MU channels
> -		for rx. All 8 MU channels must be in the same MU instance.
> +			       "rx0", "rx1", "rx2", "rx3";
> +		include "gip3" if want to support general MU interrupt.
> +- mboxes:	List of phandle of 4 MU channels for tx, 4 MU channels for
> +		rx, and 1 optional MU channel for general interrupt.
> +		All MU channels must be in the same MU instance.
>  		Cross instances are not allowed. The MU instance can only
>  		be one of LSIO MU0~M4 for imx8qxp and imx8qm. Users
> need
>  		to make sure use the one which is not conflict with other @@
> -34,6 +36,7 @@ Required properties:
>  		Channel 1 must be "tx1" or "rx1".
>  		Channel 2 must be "tx2" or "rx2".
>  		Channel 3 must be "tx3" or "rx3".
> +		General interrupt rx channel must be "gip3".
>  		e.g.
>  		mboxes = <&lsio_mu1 0 0
>  			  &lsio_mu1 0 1
> @@ -42,10 +45,18 @@ Required properties:
>  			  &lsio_mu1 1 0
>  			  &lsio_mu1 1 1
>  			  &lsio_mu1 1 2
> -			  &lsio_mu1 1 3>;
> +			  &lsio_mu1 1 3
> +			  &lsio_mu1 3 3>;
>  		See Documentation/devicetree/bindings/mailbox/fsl,mu.txt
>  		for detailed mailbox binding.
> 
> +Note: Each mu which supports general interrupt should have an alias
> +correctly numbered in "aliases" node.
> +e.g.
> +aliases {
> +	mu1 = &lsio_mu1;
> +};
> +
>  i.MX SCU Client Device Node:
>  ============================================================
> 
> @@ -124,6 +135,10 @@ Required properties:
> 
>  Example (imx8qxp):
>  -------------
> +aliases {
> +	mu1 = &lsio_mu1;
> +};
> +
>  lsio_mu1: mailbox@...c0000 {
>  	...
>  	#mbox-cells = <2>;
> @@ -133,7 +148,8 @@ firmware {
>  	scu {
>  		compatible = "fsl,imx-scu";
>  		mbox-names = "tx0", "tx1", "tx2", "tx3",
> -			     "rx0", "rx1", "rx2", "rx3";
> +			     "rx0", "rx1", "rx2", "rx3",
> +			     "gip3";
>  		mboxes = <&lsio_mu1 0 0
>  			  &lsio_mu1 0 1
>  			  &lsio_mu1 0 2
> @@ -141,7 +157,8 @@ firmware {
>  			  &lsio_mu1 1 0
>  			  &lsio_mu1 1 1
>  			  &lsio_mu1 1 2
> -			  &lsio_mu1 1 3>;
> +			  &lsio_mu1 1 3
> +			  &lsio_mu1 3 3>;
> 
>  		clk: clk {
>  			compatible = "fsl,imx8qxp-clk", "fsl,scu-clk";
> --
> 2.7.4

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