linux-kernel - Re: [PATCH] thermal: stm32: Fix stm_thermal_read_factory

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Date:   Thu, 6 Dec 2018 14:30:04 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     David HERNANDEZ SANCHEZ <david.hernandezsanchez@...com>,
        Zhang Rui <rui.zhang@...el.com>,
        Eduardo Valentin <edubezval@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre TORGUE <alexandre.torgue@...com>
Cc:     "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>
Subject: Re: [PATCH] thermal: stm32: Fix stm_thermal_read_factory_settings

On 06/12/2018 14:23, David HERNANDEZ SANCHEZ wrote:
> Adding brackets allows to multiply the register value,
> masked by TS1_RAMP_COEFF_MASK, by an ADJUST value
> properly and not to multiply ADJUST by register value and
> then mask the whole.
> 
> Signed-off-by: David Hernandez Sanchez <david.hernandezsanchez@...com>
> Fixes: 1d693155 ("thermal: add stm32 thermal driver")

Usually 'Fixes' comes first in the list.

Other than that:

Reviewed-by: Daniel Lezcano <daniel.lezcano@...aro.org>

> diff --git a/drivers/thermal/st/stm_thermal.c b/drivers/thermal/st/stm_thermal.c
> index daa1257..bbd73c5 100644
> --- a/drivers/thermal/st/stm_thermal.c
> +++ b/drivers/thermal/st/stm_thermal.c
> @@ -241,8 +241,8 @@ static int stm_thermal_read_factory_settings(struct stm_thermal_sensor *sensor)
>  		sensor->t0 = TS1_T0_VAL1;
>  
>  	/* Retrieve fmt0 and put it on Hz */
> -	sensor->fmt0 = ADJUST * readl_relaxed(sensor->base + DTS_T0VALR1_OFFSET)
> -					      & TS1_FMT0_MASK;
> +	sensor->fmt0 = ADJUST * (readl_relaxed(sensor->base +
> +				 DTS_T0VALR1_OFFSET) & TS1_FMT0_MASK);
>  
>  	/* Retrieve ramp coefficient */
>  	sensor->ramp_coeff = readl_relaxed(sensor->base + DTS_RAMPVALR_OFFSET) &
> 


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