linux-kernel - Re: [PATCH 2/2] mfd: cros_ec: instantiate properly CrOS Touchpad MCU device

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Message-ID: <20190403032745.GI4187@dell>
Date:   Wed, 3 Apr 2019 04:27:45 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     Enric Balletbo i Serra <enric.balletbo@...labora.com>
Cc:     groeck@...omium.org, gwendal@...omium.org, kernel@...labora.com,
        bleung@...omium.org, linux-kernel@...r.kernel.org,
        Wei-Ning Huang <wnhuang@...gle.com>
Subject: Re: [PATCH 2/2] mfd: cros_ec: instantiate properly CrOS Touchpad MCU
 device

On Tue, 02 Apr 2019, Lee Jones wrote:

> On Thu, 07 Mar 2019, Enric Balletbo i Serra wrote:
> 
> > From: Wei-Ning Huang <wnhuang@...gle.com>
> > 
> > Support Touchpad MCU as a special of CrOS EC devices. The current
> > Touchpad MCU is used on Eve Chromebook and used the same protocol as
> > other CrOS EC devices.
> > 
> > When a MCU has touchpad support (aka EC_FEATURE_TOUCHPAD), it is
> > instantiated as a special CrOS EC device with device name 'cros_tp'. So
> > regardless of the probing order between the actual cros_ec and cros_tp,
> > the userspace and other kernel drivers should not confuse them.
> > 
> > Signed-off-by: Wei-Ning Huang <wnhuang@...gle.com>
> > Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
> > ---
> > 
> >  drivers/mfd/cros_ec_dev.c   | 10 ++++++++++
> >  include/linux/mfd/cros_ec.h |  1 +
> >  2 files changed, 11 insertions(+)
> 
> Applied, thanks.

Looks like this depends on:
  
  mfd: cros: Update EC protocol to match current EC code
  
Removing until it's applied.

-- 
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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