Re: [PATCH v3 02/11] thermal: armada: Use msleep for long delays

From: Gregory CLEMENT <gregory.clement@free-electrons.com>
To: Miquel Raynal <miquel.raynal@free-electrons.com>
Cc: Zhang Rui <rui.zhang@intel.com>,
	Eduardo Valentin <edubezval@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Jason Cooper <jason@lakedaemon.net>, Andrew Lunn <andrew@lunn.ch>,
	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
	devicetree@vger.kernel.org, Baruch Siach <baruch@tkos.co.il>,
	linux-pm@vger.kernel.org,
	Antoine Tenart <antoine.tenart@free-electrons.com>,
	Nadav Haklai <nadavh@marvell.com>,
	David Sniatkiwicz <davidsn@marvell.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 02/11] thermal: armada: Use msleep for long delays
Date: Thu, 14 Dec 2017 11:51:35 +0100	[thread overview]
Message-ID: <87bmj1pop4.fsf@free-electrons.com> (raw)
In-Reply-To: <20171214103011.24713-3-miquel.raynal@free-electrons.com> (Miquel Raynal's message of "Thu, 14 Dec 2017 11:30:02 +0100")

Hi Miquel,

 On jeu., déc. 14 2017, Miquel Raynal <miquel.raynal@free-electrons.com> wrote:

> From: Baruch Siach <baruch@tkos.co.il>
>
> Use msleep for long (> 10ms) delays, instead of the busy waiting mdelay.
> All delays are called from the probe routine, where scheduling is
> allowed.
>
> Signed-off-by: Baruch Siach <baruch@tkos.co.il>
> Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>

Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

Thanks,

Gregory
> ---
>  drivers/thermal/armada_thermal.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c
> index 706d74798cbe..6c4af2622d4f 100644
> --- a/drivers/thermal/armada_thermal.c
> +++ b/drivers/thermal/armada_thermal.c
> @@ -113,7 +113,7 @@ static void armada370_init_sensor(struct platform_device *pdev,
>  	reg &= ~PMU_TDC0_START_CAL_MASK;
>  	writel(reg, priv->control);
>  
> -	mdelay(10);
> +	msleep(10);
>  }
>  
>  static void armada375_init_sensor(struct platform_device *pdev,
> @@ -127,11 +127,11 @@ static void armada375_init_sensor(struct platform_device *pdev,
>  	reg &= ~A375_HW_RESETn;
>  
>  	writel(reg, priv->control + 4);
> -	mdelay(20);
> +	msleep(20);
>  
>  	reg |= A375_HW_RESETn;
>  	writel(reg, priv->control + 4);
> -	mdelay(50);
> +	msleep(50);
>  }
>  
>  static void armada380_init_sensor(struct platform_device *pdev,
> @@ -143,7 +143,7 @@ static void armada380_init_sensor(struct platform_device *pdev,
>  	if (!(reg & A380_HW_RESET)) {
>  		reg |= A380_HW_RESET;
>  		writel(reg, priv->control);
> -		mdelay(10);
> +		msleep(10);
>  	}
>  }
>  
> -- 
> 2.11.0
>
>
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-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com