linux-kernel - Re: [PATCH v1 5/9] extcon: extcon-ptn5150: Switch to GENMASK() for port attachment macro

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Message-ID: <20200826070035.GE12271@pi3>
Date:   Wed, 26 Aug 2020 09:00:35 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     "Ramuthevar,Vadivel MuruganX" 
        <vadivel.muruganx.ramuthevar@...ux.intel.com>
Cc:     linux-kernel@...r.kernel.org, myungjoo.ham@...sung.com,
        cw00.choi@...sung.com, andriy.shevchenko@...el.com,
        thomas.langer@...el.com, cheol.yong.kim@...el.com,
        qi-ming.wu@...el.com, yin1.li@...el.com
Subject: Re: [PATCH v1 5/9] extcon: extcon-ptn5150: Switch to GENMASK() for
 port attachment macro

On Tue, Aug 18, 2020 at 02:57:23PM +0800, Ramuthevar,Vadivel MuruganX wrote:
> From: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@...ux.intel.com>
> 
> Switch to GENMASK() macro for the port attachment.

Squash it.

Best regards,
Krzysztof

> 
> Signed-off-by: Ramuthevar Vadivel Murugan <vadivel.muruganx.ramuthevar@...ux.intel.com>
> ---
>  drivers/extcon/extcon-ptn5150.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/extcon/extcon-ptn5150.c b/drivers/extcon/extcon-ptn5150.c
> index 50fff148b772..31b7cbf1551d 100644
> --- a/drivers/extcon/extcon-ptn5150.c
> +++ b/drivers/extcon/extcon-ptn5150.c
> @@ -38,9 +38,7 @@ enum ptn5150_reg {
>  #define PTN5150_REG_DEVICE_ID_VERSION		GENMASK(7, 3)
>  #define PTN5150_REG_DEVICE_ID_VENDOR		GENMASK(2, 0)
>  
> -#define PTN5150_REG_CC_PORT_ATTACHMENT_SHIFT	2
> -#define PTN5150_REG_CC_PORT_ATTACHMENT_MASK	\
> -	(0x7 << PTN5150_REG_CC_PORT_ATTACHMENT_SHIFT)
> +#define PTN5150_REG_CC_PORT_ATTACHMENT		GENMASK(4, 2)
>  
>  #define PTN5150_REG_CC_VBUS_DETECTION		BIT(7)
>  
> @@ -108,9 +106,8 @@ static void ptn5150_irq_work(struct work_struct *work)
>  			unsigned int port_status;
>  			unsigned int vbus;
>  
> -			port_status = ((reg_data &
> -					PTN5150_REG_CC_PORT_ATTACHMENT_MASK) >>
> -					PTN5150_REG_CC_PORT_ATTACHMENT_SHIFT);
> +			port_status = FIELD_GET(PTN5150_REG_CC_PORT_ATTACHMENT,
> +						reg_data);
>  
>  			switch (port_status) {
>  			case PTN5150_DFP_ATTACHED:
> -- 
> 2.11.0
>