On Mon, Dec 3, 2018 at 5:34 AM <qii.w...@mediatek.com> wrote: > > From: qii wang <qii.w...@mediatek.com> > > Add MT8183 i2c binding to binding file. Compare to 2712 i2c > controller, MT8183 has different registers, offsets, clock, > and multi-user function. > > Signed-off-by: qii wang <qii.w...@mediatek.com> > --- > Documentation/devicetree/bindings/i2c/i2c-mtk.txt | 7 +++++-- > 1 file changed, 5 insertions(+), 2 deletions(-) > > diff --git a/Documentation/devicetree/bindings/i2c/i2c-mtk.txt > b/Documentation/devicetree/bindings/i2c/i2c-mtk.txt > index 7729e57..dfde624 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
if arb is optional, the multi-user function still can work? arb seems like the clock fed to arbitrating bus when multiple users are accessing at the same time. > + have-pmic need include "pmic" extra. > > Optional properties: > - clock-frequency: Frequency in Hz of the bus when transfer, the default > value > @@ -27,6 +28,8 @@ Optional properties: > - mediatek,have-pmic: platform can control i2c form special pmic side. > Only mt6589 and mt8135 support this feature. > - mediatek,use-push-pull: IO config use push-pull mode. > + - ch-offset: base reg offset for multi-user. add a vendor prefix if the property is vendor-specific one. > + - mediatek,share-i3c: i3c controller can share i2c function. > > Example: > > -- > 1.7.9.5 > > > _______________________________________________ > Linux-mediatek mailing list > linux-media...@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-mediatek
