Jarkko,
On Tue, Nov 03, 2015 at 09:28:55AM +0200, Jarkko Nikula wrote:
> Hi
>
> On 03.11.2015 06:02, Jeremiah Mahler wrote:
> >Jarkko, all,
> >
> >Commit d80d134182ba5 introduced a bug which causes a cyapa based touch
> >pad on an Acer C720 Chromebook to become inoperative. This is present
> >in the latest linux-next (20151101). The patch description is repeated
> >below.
> >
[...]
> Oh, I didn't notice adapter name was used
> drivers/platform/chrome/chromeos_laptop.c. Could you try does a patch below
> help?
>
> ============================ CUT HERE ============================
> diff --git a/drivers/platform/chrome/chromeos_laptop.c
> b/drivers/platform/chrome/chromeos_laptop.c
> index 02072749fff3..2b441e9ae593 100644
> --- a/drivers/platform/chrome/chromeos_laptop.c
> +++ b/drivers/platform/chrome/chromeos_laptop.c
> @@ -47,8 +47,8 @@ static const char *i2c_adapter_names[] = {
> "SMBus I801 adapter",
> "i915 gmbus vga",
> "i915 gmbus panel",
> - "i2c-designware-pci",
> - "i2c-designware-pci",
> + "Synopsys DesignWare I2C adapter",
> + "Synopsys DesignWare I2C adapter",
> };
>
> /* Keep this enum consistent with i2c_adapter_names */
> ============================ CUT HERE ============================
>
> --
> Jarkko
> --
Yes, that change fixes the problem. Thanks for the quick fix.
Tested-by: Jeremiah Mahler <jmmah...@gmail.com>
So the find_i2c_adapter_num function was looking for
"i2c-designware-pci" but it should have been looking for
"Synopsys DesignWare I2C adapter". Where does this bus name
come from, is it read from the device itself?
--
- Jeremiah Mahler
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