linux-kernel - Re: [PATCH 3/3] Input: mms114

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Message-ID: <20191008113511.GA4015@jack.zhora.eu>
Date:   Tue, 8 Oct 2019 14:35:11 +0300
From:   Andi Shyti <andi@...zian.org>
To:     Stephan Gerhold <stephan@...hold.net>
Cc:     Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Andi Shyti <andi@...zian.org>,
        Simon Shields <simon@...eageos.org>,
        linux-input@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] Input: mms114 - add support for mms345l

Hi Stephan,

On Mon, Oct 07, 2019 at 10:50:21PM +0200, Stephan Gerhold wrote:
> MMS345L is another first generation touch screen from Melfas,
> which uses the same registers as MMS152.
> 
> However, using I2C_M_NOSTART for it causes errors when reading:
> 
> 	i2c i2c-0: sendbytes: NAK bailout.
> 	mms114 0-0048: __mms114_read_reg: i2c transfer failed (-5)
> 
> The driver works fine as soon as I2C_M_NOSTART is removed.
> 
> Add a separate melfas,mms345l binding, and make use of I2C_M_NOSTART
> only for MMS114 and MMS152.
> 
> Signed-off-by: Stephan Gerhold <stephan@...hold.net>

Reviewed-by: Andi Shyti <andi@...zian.org>

just a nitpick in case you will resend it (but you don't need
to).

> -	if (!i2c_check_functionality(client->adapter,
> -				I2C_FUNC_PROTOCOL_MANGLING)) {
> +	type = (enum mms_type)device_get_match_data(&client->dev);

you don't need any cast here.

Thanks,
Andi