linux-kernel - Re: [RESEND PATCH v6 09/22] mfd: ab8500: Use power_supply

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Date:	Thu, 12 Mar 2015 09:01:56 +0000
From:	Lee Jones <lee.jones@...aro.org>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	Jiri Kosina <jkosina@...e.cz>,
	Henrik Rydberg <rydberg@...math.org>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	Sebastian Reichel <sre@...nel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>, linux-pm@...r.kernel.org
Subject: Re: [RESEND PATCH v6 09/22] mfd: ab8500: Use power_supply_*() API
 for accessing function attrs

On Thu, 12 Mar 2015, Krzysztof Kozlowski wrote:

> Replace direct calls to power supply function attributes with wrappers.
> Wrappers provide safe access in case of unregistering the power
> supply (e.g. by removing the driver). Replace:
>  - get_property -> power_supply_get_property
> 
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> Acked-by: Jonghwa Lee <jonghwa3.lee@...sung.com>
> Acked-by: Pavel Machek <pavel@....cz>
> Acked-by: Lee Jones <lee.jones@...aro.org>
> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
> Reviewed-by: Sebastian Reichel <sre@...nel.org>
> ---
>  drivers/mfd/ab8500-sysctrl.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)

Has the infrastructure for these been merged yet?

I.e. Can I just take them?

> diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c
> index cfff0b643f1b..d4a4b24be7c6 100644
> --- a/drivers/mfd/ab8500-sysctrl.c
> +++ b/drivers/mfd/ab8500-sysctrl.c
> @@ -49,7 +49,8 @@ static void ab8500_power_off(void)
>  		if (!psy)
>  			continue;
>  
> -		ret = psy->get_property(psy, POWER_SUPPLY_PROP_ONLINE, &val);
> +		ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_ONLINE,
> +				&val);
>  
>  		if (!ret && val.intval) {
>  			charger_present = true;
> @@ -63,8 +64,8 @@ static void ab8500_power_off(void)
>  	/* Check if battery is known */
>  	psy = power_supply_get_by_name("ab8500_btemp");
>  	if (psy) {
> -		ret = psy->get_property(psy, POWER_SUPPLY_PROP_TECHNOLOGY,
> -					&val);
> +		ret = power_supply_get_property(psy,
> +				POWER_SUPPLY_PROP_TECHNOLOGY, &val);
>  		if (!ret && val.intval != POWER_SUPPLY_TECHNOLOGY_UNKNOWN) {
>  			printk(KERN_INFO
>  			       "Charger \"%s\" is connected with known battery."

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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