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

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Date:   Fri, 19 Aug 2016 19:35:24 +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 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

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);