linux-kernel - Re: [RESEND PATCH 1/2] dt-bindings: i2c: Add MediaTek MT7622 i2c binding

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Message-ID: <1502353140.17420.7.camel@mtksdaap41>
Date:   Thu, 10 Aug 2017 16:19:00 +0800
From:   Honghui Zhang <honghui.zhang@...iatek.com>
To:     Jun Gao <jun.gao@...iatek.com>
CC:     Wolfram Sang <wsa@...-dreams.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <devicetree@...r.kernel.org>, <srv_heupstream@...iatek.com>,
        <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <linux-i2c@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RESEND PATCH 1/2] dt-bindings: i2c: Add MediaTek MT7622 i2c
 binding

On Thu, 2017-08-10 at 10:27 +0800, Jun Gao wrote:
> From: Jun Gao <jun.gao@...iatek.com>
> 
> Add MT7622 i2c binding to binding file. Compare to MT8173 i2c
> controller, MT7622 limits message numbers to 255, and does not
> support 4GB DMA mode.
> 
> Signed-off-by: Jun Gao <jun.gao@...iatek.com>
> ---
>  Documentation/devicetree/bindings/i2c/i2c-mtk.txt | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/i2c/i2c-mtk.txt b/Documentation/devicetree/bindings/i2c/i2c-mtk.txt
> index bd5a7be..ff9ac61 100644
> --- a/Documentation/devicetree/bindings/i2c/i2c-mtk.txt
> +++ b/Documentation/devicetree/bindings/i2c/i2c-mtk.txt
> @@ -4,11 +4,12 @@ The Mediatek's I2C controller is used to interface with I2C devices.
>  
>  Required properties:
>    - compatible: value should be either of the following.
> -      "mediatek,mt2701-i2c", "mediatek,mt6577-i2c": for Mediatek mt2701
> -      "mediatek,mt6577-i2c": for i2c compatible with mt6577.
> -      "mediatek,mt6589-i2c": for i2c compatible with mt6589.
> -      "mediatek,mt7623-i2c", "mediatek,mt6577-i2c": for i2c compatible with mt7623.
> -      "mediatek,mt8173-i2c": for i2c compatible with mt8173.
> +	"mediatek,mt2701-i2c", "mediatek,mt6577-i2c": for Mediatek MT2701
> +	"mediatek,mt6577-i2c": for Mediatek MT6577
> +	"mediatek,mt6589-i2c": for Mediatek MT6589

Better not change those and just add compatible strings for mt7622.

> +	"mediatek,mt7622-i2c": for Mediatek MT7622
> +	"mediatek,mt7623-i2c", "mediatek,mt6577-i2c": for Mediatek MT7623
> +	"mediatek,mt8173-i2c": for Mediatek MT8173
>    - reg: physical base address of the controller and dma base, length of memory
>      mapped region.
>    - interrupts: interrupt number to the cpu.