RE: [PATCH v3] i3c: master: support to adjust first broadcast address speed

[Carlos Song]

> -----Original Message-----
> From: Frank Li <frank.li@xxxxxxx>
> Sent: Thursday, September 5, 2024 3:08 AM
> To: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
> Cc: Carlos Song <carlos.song@xxxxxxx>; alexandre.belloni@xxxxxxxxxxx;
> linux-i3c@xxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; imx@xxxxxxxxxxxxxxx;
> dl-linux-imx <linux-imx@xxxxxxx>
> Subject: Re: [PATCH v3] i3c: master: support to adjust first broadcast address
> speed
> 
> On Mon, Aug 26, 2024 at 10:13:23AM +0200, Miquel Raynal wrote:
> > Hi Carlos,
> >
> > carlos.song@xxxxxxx wrote on Mon, 26 Aug 2024 13:09:57 +0800:
> >
> > > From: Carlos Song <carlos.song@xxxxxxx>
> > >
> 
> carlos:
> 
> 	I just realize you missed sent out svc implement.
> 
> https://lore.kernel.org/linux-i3c/20240807061306.3143528-2-carlos.song@nxp.
> com/T/#u
> 
> 	Suppose both patches should send out together.
> 
> Frank
> 

Sorry for this. I will send both again together.

> > > According to I3C spec 6.2 Timing Specification, the Open Drain High
> > > Period of SCL Clock timing for first broadcast address should be
> > > adjusted to 200ns at least. I3C device working as i2c device will
> > > see the broadcast to close its Spike Filter then change to work at
> > > I3C mode. After that I3C open drain SCL high level should be adjusted back.
> > >
> > > Signed-off-by: Carlos Song <carlos.song@xxxxxxx>
> > > Reviewed-by: Frank Li <Frank.Li@xxxxxxx>
> >
> > Reviewed-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
> >
> > Frank, did you test it with eg. the Silvaco master?
> >
> > Thanks,
> > Miquèl
> >
> > --
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