linux-kernel - Re: [PATCH v2 09/11] phy: rockchip-emmc: Minor code cleanup in rockchip_emmc_phy_power

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Date:	Mon, 20 Jun 2016 18:34:19 +0530
From:	Kishon Vijay Abraham I <kishon@...com>
To:	Douglas Anderson <dianders@...omium.org>, <ulf.hansson@...aro.org>,
	Heiko Stuebner <heiko@...ech.de>, <robh+dt@...nel.org>
CC:	<shawn.lin@...k-chips.com>, <xzy.xu@...k-chips.com>,
	<briannorris@...omium.org>, <adrian.hunter@...el.com>,
	<linux-rockchip@...ts.infradead.org>, <linux-mmc@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 09/11] phy: rockchip-emmc: Minor code cleanup in
 rockchip_emmc_phy_power_on/off()



On Tuesday 14 June 2016 04:34 AM, Douglas Anderson wrote:
> There's no reason to store the return value of rockchip_emmc_phy_power()
> in a variable nor to check it.  Just return it.
> 
> Signed-off-by: Douglas Anderson <dianders@...omium.org>

Acked-by: Kishon Vijay Abraham I <kishon@...com>
> ---
> Changes in v2:
> - Move code cleanup before set phyctrl_frqsel based on card clock (Shawn)
> 
>  drivers/phy/phy-rockchip-emmc.c | 14 ++------------
>  1 file changed, 2 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/phy/phy-rockchip-emmc.c b/drivers/phy/phy-rockchip-emmc.c
> index 2d059c046978..23fe50864526 100644
> --- a/drivers/phy/phy-rockchip-emmc.c
> +++ b/drivers/phy/phy-rockchip-emmc.c
> @@ -169,20 +169,14 @@ static int rockchip_emmc_phy_power(struct rockchip_emmc_phy *rk_phy,
>  static int rockchip_emmc_phy_power_off(struct phy *phy)
>  {
>  	struct rockchip_emmc_phy *rk_phy = phy_get_drvdata(phy);
> -	int ret = 0;
>  
>  	/* Power down emmc phy analog blocks */
> -	ret = rockchip_emmc_phy_power(rk_phy, PHYCTRL_PDB_PWR_OFF);
> -	if (ret)
> -		return ret;
> -
> -	return 0;
> +	return rockchip_emmc_phy_power(rk_phy, PHYCTRL_PDB_PWR_OFF);
>  }
>  
>  static int rockchip_emmc_phy_power_on(struct phy *phy)
>  {
>  	struct rockchip_emmc_phy *rk_phy = phy_get_drvdata(phy);
> -	int ret = 0;
>  
>  	/* DLL operation: 200 MHz */
>  	regmap_write(rk_phy->reg_base,
> @@ -213,11 +207,7 @@ static int rockchip_emmc_phy_power_on(struct phy *phy)
>  				   PHYCTRL_OTAPDLYSEL_SHIFT));
>  
>  	/* Power up emmc phy analog blocks */
> -	ret = rockchip_emmc_phy_power(rk_phy, PHYCTRL_PDB_PWR_ON);
> -	if (ret)
> -		return ret;
> -
> -	return 0;
> +	return rockchip_emmc_phy_power(rk_phy, PHYCTRL_PDB_PWR_ON);
>  }
>  
>  static const struct phy_ops ops = {
>