linux-kernel - Re: [PATCH 2/6] serial8250-em: convert to clk

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Date:	Tue, 24 Sep 2013 13:44:32 +0900
From:	Simon Horman <horms@...ge.net.au>
To:	takasi-y@....dti.ne.jp
Cc:	SH-Linux <linux-sh@...r.kernel.org>,
	Magnus Damm <magnus.damm@...il.com>, ben.dooks@...ethink.co.uk,
	Shinya Kuribayashi <shinya.kuribayashi.px@...esas.com>,
	devicetree@...r.kernel.org, linux-serial@...r.kernel.org,
	Paul Mundt <lethal@...ux-sh.org>,
	Mike Turquette <mturquette@...aro.org>,
	linux-kernel@...r.kernel.org,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 2/6] serial8250-em: convert to clk_prepare/unprepare

[ CCed Greg Kroah-Hartman, the serial maintainer for his review ]

On Tue, Sep 24, 2013 at 01:10:39PM +0900, takasi-y@....dti.ne.jp wrote:
> From: Shinya Kuribayashi <shinya.kuribayashi.px@...esas.com>
> 
> Add calls to clk_prepare and unprepare so that EMMA Mobile EV2 can
> migrate to the common clock framework.
> 
> Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@...esas.com>
> [takashi.yoshii.ze@...esas.com: edited for conflicts]
> Signed-off-by: Takashi Yoshii <takashi.yoshii.zj@...esas.com>
> ---
>  drivers/tty/serial/8250/8250_em.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/tty/serial/8250/8250_em.c b/drivers/tty/serial/8250/8250_em.c
> index 5f3bba1..d1a9078 100644
> --- a/drivers/tty/serial/8250/8250_em.c
> +++ b/drivers/tty/serial/8250/8250_em.c
> @@ -122,7 +122,7 @@ static int serial8250_em_probe(struct platform_device *pdev)
>  	up.port.dev = &pdev->dev;
>  	up.port.private_data = priv;
>  
> -	clk_enable(priv->sclk);
> +	clk_prepare_enable(priv->sclk);
>  	up.port.uartclk = clk_get_rate(priv->sclk);
>  
>  	up.port.iotype = UPIO_MEM32;
> @@ -134,7 +134,7 @@ static int serial8250_em_probe(struct platform_device *pdev)
>  	ret = serial8250_register_8250_port(&up);
>  	if (ret < 0) {
>  		dev_err(&pdev->dev, "unable to register 8250 port\n");
> -		clk_disable(priv->sclk);
> +		clk_disable_unprepare(priv->sclk);
>  		return ret;
>  	}
>  
> @@ -148,7 +148,7 @@ static int serial8250_em_remove(struct platform_device *pdev)
>  	struct serial8250_em_priv *priv = platform_get_drvdata(pdev);
>  
>  	serial8250_unregister_port(priv->line);
> -	clk_disable(priv->sclk);
> +	clk_disable_unprepare(priv->sclk);
>  	return 0;
>  }
>  
> -- 
> 1.8.1.5
> 
> --
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