Re: Issues with touchpad / touchscreen on yoga 900

[Wolfram Sang <wsa@the-dreams.de>]

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On Wed, Nov 04, 2015 at 07:51:43AM -0700, Kevin Fenzi wrote:
> On Tue, 3 Nov 2015 10:18:40 +0200
> Mika Westerberg <mika.westerberg@linux.intel.com> wrote:
> 
> > On Mon, Nov 02, 2015 at 12:47:28PM -0700, Kevin Fenzi wrote:
> > > Any other ideas or things to try? 
> > > 
> > > It would be nice to have a working touchpad. ;)  
> > 
> > Please attach acpidump of that machine to the bug (or send it directly
> > to me) and provide full dmesg with i2c_hid.debug=1.
> 
> Just to circle back here, I exchanged some emails with Mika and this
> one liner gets it working...
> 
> Hopefully something can be made upstreamable from this. Thanks much. 

I didn't find any patch coming out of this? Mika, did I miss something?

> 
> kevin
> --
> diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
> index 3dd2de3..31ea736 100644
> --- a/drivers/i2c/busses/i2c-designware-platdrv.c
> +++ b/drivers/i2c/busses/i2c-designware-platdrv.c
> @@ -90,6 +90,11 @@ static int dw_i2c_acpi_configure(struct platform_device *pdev)
>         dw_i2c_acpi_params(pdev, "SSCN", &dev->ss_hcnt, &dev->ss_lcnt, NULL);
>         dw_i2c_acpi_params(pdev, "FMCN", &dev->fs_hcnt, &dev->fs_lcnt,
>                            &dev->sda_hold_time);
> 
> +       dev->sda_hold_time = 30;
>  
>         /*
>          * Provide a way for Designware I2C host controllers that are not



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