linux-kernel - Re: [PATCH v11 05/56] Input: atmel_mxt_ts - output status from T48 Noise Supression

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Date:   Mon, 11 May 2020 15:23:47 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Jiada Wang <jiada_wang@...tor.com>
Cc:     nick@...anahar.org, jikos@...nel.org,
        benjamin.tissoires@...hat.com, bsz@...ihalf.com,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        erosca@...adit-jv.com, Andrew_Gabbasov@...tor.com
Subject: Re: [PATCH v11 05/56] Input: atmel_mxt_ts - output status from T48
 Noise Supression

On Thu, May 07, 2020 at 10:56:05PM -0700, Jiada Wang wrote:
> From: Nick Dyer <nick.dyer@...ev.co.uk>
> 
> This patch outputs status from T48 Noise Supression
> 
> Signed-off-by: Nick Dyer <nick.dyer@...ev.co.uk>
> Acked-by: Benson Leung <bleung@...omium.org>
> Acked-by: Yufeng Shen <miletus@...omium.org>
> (cherry picked from ndyer/linux/for-upstream commit 2895a6ff150a49f27a02938f8d262be238b296d8)
> Signed-off-by: George G. Davis <george_davis@...tor.com>
> Signed-off-by: Jiada Wang <jiada_wang@...tor.com>
> ---
>  drivers/input/touchscreen/atmel_mxt_ts.c | 25 ++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
> index 7e6a66e3e1e0..a53985a7736f 100644
> --- a/drivers/input/touchscreen/atmel_mxt_ts.c
> +++ b/drivers/input/touchscreen/atmel_mxt_ts.c
> @@ -324,6 +324,7 @@ struct mxt_data {
>  	u16 T18_address;
>  	u8 T19_reportid;
>  	u16 T44_address;
> +	u8 T48_reportid;
>  	u8 T100_reportid_min;
>  	u8 T100_reportid_max;
>  
> @@ -978,6 +979,24 @@ static void mxt_proc_t100_message(struct mxt_data *data, u8 *message)
>  	data->update_input = true;
>  }
>  
> +static int mxt_proc_t48_messages(struct mxt_data *data, u8 *msg)
> +{
> +	struct device *dev = &data->client->dev;
> +	u8 status, state;
> +
> +	status = msg[1];
> +	state  = msg[4];
> +
> +	dev_dbg(dev, "T48 state %d status %02X %s%s%s%s%s\n", state, status,
> +		status & 0x01 ? "FREQCHG " : "",
> +		status & 0x02 ? "APXCHG " : "",
> +		status & 0x04 ? "ALGOERR " : "",
> +		status & 0x10 ? "STATCHG " : "",
> +		status & 0x20 ? "NLVLCHG " : "");

Should we define symbolic names for these bits, like you did for T42
in the next patch?

Thanks.

-- 
Dmitry