Re: [PATCH V2 5/5] usb: serial: f81534: fix tx error on some baud rate

[Ji-Ze Hong (Peter Hong)]

Hi Johan,

Johan Hovold æ 2018/1/9 äå 07:32 åé:
> On Thu, Jan 04, 2018 at 10:29:21AM +0800, Ji-Ze Hong (Peter Hong) wrote:
> > +	/*
> > +	 * We'll make tx frame error when baud rate from 384~500kps. So we'll
> > +	 * delay all tx data frame with 1bit.
> > +	 */
> > +	port_priv->shadow_clk |= F81534_CLK_TX_DELAY_1BIT;
>
> You don't wan't to enable this only for the affected rates?

This bit will control all transmit TX frame always delay 1 bit
on enabled, but It'll transmit TX frame randomly delay 1 bit on
disabled.

We had tested it with BurnInTest to check the performance,
It'll not make the performance regression. So we'll directly add
it on all baud rate.

Thanks
--
With Best Regards,
Peter Hong