Re: [PATCH v4 2/3] dt-bindings: i2c: Add Mediatek MT8183 i2c binding

Matthias Brugger
2019-02-20T15:25:48Z

On 20/02/2019 13:33, Qii Wang wrote:
> Add MT8183 i2c binding to binding file. Compare to MT2712 i2c
> controller, MT8183 has different registers, offsets, and clock.
>
> Signed-off-by: Qii Wang <qii.wang@mediatek.com>
> ---
> Documentation/devicetree/bindings/i2c/i2c-mtk.txt | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/i2c/i2c-mtk.txt b/Documentation/devicetree/bindings/i2c/i2c-mtk.txt
> index ee4c324..da2fa60 100644
> --- a/Documentation/devicetree/bindings/i2c/i2c-mtk.txt
> +++ b/Documentation/devicetree/bindings/i2c/i2c-mtk.txt
> @@ -12,14 +12,15 @@ Required properties:
> "mediatek,mt7623-i2c", "mediatek,mt6577-i2c": for MediaTek MT7623
> "mediatek,mt7629-i2c", "mediatek,mt2712-i2c": for MediaTek MT7629
> "mediatek,mt8173-i2c": for MediaTek MT8173
> + "mediatek,mt8183-i2c": for MediaTek MT8183
> - reg: physical base address of the controller and dma base, length of memory
> mapped region.
> - interrupts: interrupt number to the cpu.
> - clock-div: the fixed value for frequency divider of clock source in i2c
> module. Each IC may be different.
> - clocks: clock name from clock manager
> - - clock-names: Must include "main" and "dma", if enable have-pmic need include
> - "pmic" extra.
> + - clock-names: Must include "main" and "dma", "arb" is optional, if enable
> + have-pmic need include "pmic" extra.

You have to mention that the arb clock is only necessary for mt8183.

>
> Optional properties:
> - clock-frequency: Frequency in Hz of the bus when transfer, the default value
>