linux-kernel - Re: [PATCH 1/2] mfd: cros_ec: instantiate properly CrOS FP MCU device

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Date:   Wed, 3 Apr 2019 04:27:07 +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,
        Vincent Palatin <vpalatin@...omium.org>
Subject: Re: [PATCH 1/2] mfd: cros_ec: instantiate properly CrOS FP MCU device

On Tue, 02 Apr 2019, Lee Jones wrote:

> On Thu, 07 Mar 2019, Enric Balletbo i Serra wrote:
> 
> > From: Vincent Palatin <vpalatin@...omium.org>
> > 
> > Support Fingerprint MCU as a special of CrOS EC devices. The current FP
> > MCU uses the same EC SPI protocol v3 as other CrOS EC devices on a SPI
> > bus.
> > 
> > When a MCU has fingerprint support (aka EC_FEATURE_FINGERPRINT), it is
> > instantiated as a special CrOS EC device with device name 'cros_fp'. So
> > regardless of the probing order between the actual cros_ec and cros_fp,
> > the userspace and other kernel drivers should not confuse them.
> > 
> > Signed-off-by: Vincent Palatin <vpalatin@...omium.org>
> > 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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