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Re: [PATCH 7/7] thermal: max77620: fix pinmux conflict on reprobe

From Eduardo Valentin <eduval@amazon.com>
Newsgroups linux.kernel
Subject Re: [PATCH 7/7] thermal: max77620: fix pinmux conflict on reprobe
Date 2017-05-30 21:00 +0200
Message-ID <tMUx3-2xi-3@gated-at.bofh.it> (permalink)
References <tMSbT-1dJ-3@gated-at.bofh.it> <tMSbU-1dJ-29@gated-at.bofh.it>
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On Tue, May 30, 2017 at 06:25:54PM +0200, Johan Hovold wrote:
> Use the new helper for reusing a device-tree node of another device
> instead of managing the node references explicitly.
> 
> This also makes sure that the new of_node_reuse flag is set if the
> device is ever reprobed, something which specifically now avoids driver
> core from attempting to claim any pinmux resources already claimed by
> the parent device.
> 
> Fixes: ec4664b3fd6d ("thermal: max77620: Add thermal driver for reporting junction temp")
> Cc: Laxman Dewangan <ldewangan@nvidia.com>
> Signed-off-by: Johan Hovold <johan@kernel.org>
> ---
>  drivers/thermal/max77620_thermal.c | 8 +++-----
>  1 file changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/thermal/max77620_thermal.c b/drivers/thermal/max77620_thermal.c
> index 71d35f3c9215..159bbcee8821 100644
> --- a/drivers/thermal/max77620_thermal.c
> +++ b/drivers/thermal/max77620_thermal.c
> @@ -112,12 +112,10 @@ static int max77620_thermal_probe(struct platform_device *pdev)
>  	}
>  
>  	/*
> -	 * Drop any current reference to a device-tree node and get a
> -	 * reference to the parent's node which will be balanced on reprobe or
> -	 * on platform-device release.
> +	 * The reference taken to the parent's node which will be balanced on
> +	 * reprobe or on platform-device release.
>  	 */
> -	of_node_put(pdev->dev.of_node);
> -	pdev->dev.of_node = of_node_get(pdev->dev.parent->of_node);
> +	device_set_of_node_from_dev(&pdev->dev, pdev->dev.parent);

Should this one be squashed with patch 6/7?

>  
>  	mtherm->tz_device = devm_thermal_zone_of_sensor_register(&pdev->dev, 0,
>  				mtherm, &max77620_thermal_ops);
> -- 
> 2.13.0
> 
> 

-- 
All the best,
Eduardo Valentin

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Thread

[PATCH 7/7] thermal: max77620: fix pinmux conflict on reprobe Johan Hovold <johan@kernel.org> - 2017-05-30 18:30 +0200
  Re: [PATCH 7/7] thermal: max77620: fix pinmux conflict on reprobe Eduardo Valentin <eduval@amazon.com> - 2017-05-30 21:00 +0200
    Re: [PATCH 7/7] thermal: max77620: fix pinmux conflict on reprobe Johan Hovold <johan@kernel.org> - 2017-05-31 10:30 +0200

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