linux-kernel - Re: [PATCH 2/2] thermal: rcar-thermal: enable hwmon when thermal

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Message-ID: <1472025111.2682.41.camel@intel.com>
Date:   Wed, 24 Aug 2016 15:51:51 +0800
From:   Zhang Rui <rui.zhang@...el.com>
To:     Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        "edubezval@...il.com" <edubezval@...il.com>
Cc:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "yoshihiro.shimoda.uh@...esas.com" <yoshihiro.shimoda.uh@...esas.com>,
        "cm-hiep@...so.co.jp" <cm-hiep@...so.co.jp>,
        hucBui <bd-phuc@...so.co.jp>
Subject: Re: [PATCH 2/2] thermal: rcar-thermal: enable hwmon when
 thermal_zone

On 五, 2016-08-19 at 19:35 +0800, Zhang Rui wrote:
> On 二, 2016-07-19 at 10:01 +0000, Kuninori Morimoto wrote:
> > 
> > From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
> > 
> > rcar-thermal is supporting both thermal_zone_of_sensor_register()
> > and
> > thermal_zone_device_register(). But
> > thermal_zone_of_sensor_register()
> > doesn't enable hwmon as default.
> > This patch enables it to keep compatibility
> > 
> > Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
> Queued for 4.9
> 
the subject should be "thermal:rcar-theraml: enable hwmon when
thermal_zone_of_sensor_register is used", right?

thanks,
rui
> thanks,
> rui
> > 
> > ---
> >  drivers/thermal/rcar_thermal.c | 20 ++++++++++++++++++--
> >  1 file changed, 18 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/thermal/rcar_thermal.c
> > b/drivers/thermal/rcar_thermal.c
> > index 71a3392..4d07644 100644
> > --- a/drivers/thermal/rcar_thermal.c
> > +++ b/drivers/thermal/rcar_thermal.c
> > @@ -31,6 +31,8 @@
> >  #include <linux/spinlock.h>
> >  #include <linux/thermal.h>
> >  
> > +#include "thermal_hwmon.h"
> > +
> >  #define IDLE_INTERVAL	5000
> >  
> >  #define COMMON_STR	0x00
> > @@ -75,6 +77,8 @@ struct rcar_thermal_priv {
> >  #define rcar_priv_to_dev(priv)		((priv)->common-
> > >dev)
> >  #define rcar_has_irq_support(priv)	((priv)->common->base)
> >  #define rcar_id_to_shift(priv)		((priv)->id * 8)
> > +#define rcar_of_data(dev)		((unsigned
> > long)of_device_get_match_data(dev))
> > +#define rcar_use_of_thermal(dev)	(rcar_of_data(dev) ==
> > USE_OF_THERMAL)
> >  
> >  #define USE_OF_THERMAL	1
> >  static const struct of_device_id rcar_thermal_dt_ids[] = {
> > @@ -416,6 +420,8 @@ static int rcar_thermal_remove(struct
> > platform_device *pdev)
> >  	rcar_thermal_for_each_priv(priv, common) {
> >  		rcar_thermal_irq_disable(priv);
> >  		thermal_zone_device_unregister(priv->zone);
> > +		if (rcar_use_of_thermal(dev))
> > +			thermal_remove_hwmon_sysfs(priv->zone);
> >  	}
> >  
> >  	pm_runtime_put(dev);
> > @@ -430,7 +436,6 @@ static int rcar_thermal_probe(struct
> > platform_device *pdev)
> >  	struct rcar_thermal_priv *priv;
> >  	struct device *dev = &pdev->dev;
> >  	struct resource *res, *irq;
> > -	unsigned long of_data = (unsigned
> > long)of_device_get_match_data(dev);
> >  	int mres = 0;
> >  	int i;
> >  	int ret = -ENODEV;
> > @@ -491,7 +496,7 @@ static int rcar_thermal_probe(struct
> > platform_device *pdev)
> >  		if (ret < 0)
> >  			goto error_unregister;
> >  
> > -		if (of_data == USE_OF_THERMAL)
> > +		if (rcar_use_of_thermal(dev))
> >  			priv->zone =
> > devm_thermal_zone_of_sensor_register(
> >  						dev, i, priv,
> >  						&rcar_thermal_zone
> > _o
> > f_ops);
> > @@ -507,6 +512,17 @@ static int rcar_thermal_probe(struct
> > platform_device *pdev)
> >  			goto error_unregister;
> >  		}
> >  
> > +		if (rcar_use_of_thermal(dev)) {
> > +			/*
> > +			 * thermal_zone doesn't enable hwmon as
> > default,
> > +			 * but, enable it here to keep compatible
> > +			 */
> > +			priv->zone->tzp->no_hwmon = false;
> > +			ret = thermal_add_hwmon_sysfs(priv->zone);
> > +			if (ret)
> > +				goto error_unregister;
> > +		}
> > +
> >  		rcar_thermal_irq_enable(priv);
> >  
> >  		list_move_tail(&priv->list, &common->head);
> --
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