linux-kernel - Re: [PATCH] usb: musb: core: add common method of getting vbus status

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Message-ID: <561BE36B.2000908@cogentembedded.com>
Date:	Mon, 12 Oct 2015 19:44:27 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Roman Alyautdin <ralyautdin@....rtsoft.ru>, balbi@...com
Cc:	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] usb: musb: core: add common method of getting vbus status

Hello.

On 10/12/2015 05:14 PM, Roman Alyautdin wrote:

> Fix musb_platform_get_vbus_status return value in case of platform
> implementation is not defined, bringing expected behaviour of
> musb_platform_get wrapper. Add musb_vbus_show default method to determine
> VBUS status in case platform method is not defined.
>
> Signed-off-by: Roman Alyautdin <ralyautdin@....rtsoft.ru>
> ---
>   drivers/usb/musb/musb_core.c |   13 ++++++++++---
>   drivers/usb/musb/musb_core.h |    2 +-
>   2 files changed, 11 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
> index 4a518ff..3551540 100644
> --- a/drivers/usb/musb/musb_core.c
> +++ b/drivers/usb/musb/musb_core.c
> @@ -1771,13 +1771,20 @@ musb_vbus_show(struct device *dev, struct device_attribute *attr, char *buf)
>   	unsigned long	flags;
>   	unsigned long	val;
>   	int		vbus;
> +	u8		devctl;

    I'd add the variable to the block it's used in but this way is OK too.

[...]

MBR, Sergei

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