linux-kernel - Re: [PATCH 2/5] usb: pxa27x_udc: Use devm_clk_get

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Message-ID: <2024082240-gallery-stinger-5901@gregkh>
Date: Thu, 22 Aug 2024 12:26:51 +0800
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: Lei Liu <liulei.rjpt@...o.com>
Cc: Neal Liu <neal_liu@...eedtech.com>, Joel Stanley <joel@....id.au>,
	Andrew Jeffery <andrew@...econstruct.com.au>,
	Daniel Mack <daniel@...que.org>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Conor Dooley <conor.dooley@...rochip.com>,
	Daire McNamara <daire.mcnamara@...rochip.com>,
	Bin Liu <b-liu@...com>,
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	linux-aspeed@...ts.ozlabs.org, linux-usb@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org, opensource.kernel@...o.com
Subject: Re: [PATCH 2/5] usb: pxa27x_udc: Use devm_clk_get_enabled() helpers

On Wed, Aug 21, 2024 at 08:10:40PM +0800, Lei Liu wrote:
> The devm_clk_get_enabled() helpers:
>     - call devm_clk_get()
>     - call clk_prepare_enable() and register what is needed in order to
>      call clk_disable_unprepare() when needed, as a managed resource.
> 
> This simplifies the code and avoids calls to clk_disable_unprepare().
> 
> Signed-off-by: Lei Liu <liulei.rjpt@...o.com>
> ---
>  drivers/usb/gadget/udc/pxa27x_udc.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/usb/gadget/udc/pxa27x_udc.c b/drivers/usb/gadget/udc/pxa27x_udc.c
> index 1a6317e4b2a3..6e99e75f1acb 100644
> --- a/drivers/usb/gadget/udc/pxa27x_udc.c
> +++ b/drivers/usb/gadget/udc/pxa27x_udc.c
> @@ -2398,14 +2398,10 @@ static int pxa_udc_probe(struct platform_device *pdev)
>  	if (udc->gpiod)
>  		gpiod_direction_output(udc->gpiod, 0);
>  
> -	udc->clk = devm_clk_get(&pdev->dev, NULL);
> +	udc->clk = clk_prepare_enable(&pdev->dev, NULL);

You didn't test build this code :(