linux-kernel - Re: [PATCH v2 3/3] drivers: mfd: ti_am335x_tscadc: increase ADC ref clock to 24MHz

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Date:   Tue, 22 Nov 2016 13:04:38 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Mugunthan V N <mugunthanvnm@...com>
Cc:     linux-input@...r.kernel.org,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Sekhar Nori <nsekhar@...com>, Vignesh R <vigneshr@...com>,
        devicetree@...r.kernel.org, linux-omap@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/3] drivers: mfd: ti_am335x_tscadc: increase ADC ref
 clock to 24MHz

Don't make up $SUBJECT line format.

> Increase ADC reference clock from 3MHz to 24MHz so that the
> sampling rates goes up from 100K samples per second to 800K
> samples per second on AM335x and AM437x SoC.
> 
> Signed-off-by: Mugunthan V N <mugunthanvnm@...com>
> ---
>  include/linux/mfd/ti_am335x_tscadc.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Change looks okay though.

For my own reference:
  Acked-for-MFD-by: Lee Jones <lee.jones@...aro.org>

> diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
> index b9a53e013bff..f6c449b96ea5 100644
> --- a/include/linux/mfd/ti_am335x_tscadc.h
> +++ b/include/linux/mfd/ti_am335x_tscadc.h
> @@ -137,7 +137,7 @@
>  #define SEQ_STATUS BIT(5)
>  #define CHARGE_STEP		0x11
>  
> -#define ADC_CLK			3000000
> +#define ADC_CLK			24000000
>  #define TOTAL_STEPS		16
>  #define TOTAL_CHANNELS		8
>  #define FIFO1_THRESHOLD		19

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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