linux-kernel - Re: [PATCH v3 14/16] usb: chipidea: tegra: Stop managing PHY's power

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Date:   Mon, 30 Dec 2019 02:24:40 +0000
From:   Peter Chen <peter.chen@....com>
To:     Dmitry Osipenko <digetx@...il.com>
CC:     Rob Herring <robh+dt@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Felipe Balbi <balbi@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 14/16] usb: chipidea: tegra: Stop managing PHY's power

On 19-12-28 23:33:56, Dmitry Osipenko wrote:
> Tegra's USB PHY driver now provides generic PHY init/shutdown callbacks
> and thus the custom PHY management could be removed from Tegra-specific
> part of the ChipIdea driver.
> 
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
> ---
>  drivers/usb/chipidea/ci_hdrc_tegra.c | 9 ---------
>  1 file changed, 9 deletions(-)
> 
> diff --git a/drivers/usb/chipidea/ci_hdrc_tegra.c b/drivers/usb/chipidea/ci_hdrc_tegra.c
> index 0c9911d44ee5..7455df0ede49 100644
> --- a/drivers/usb/chipidea/ci_hdrc_tegra.c
> +++ b/drivers/usb/chipidea/ci_hdrc_tegra.c
> @@ -83,13 +83,6 @@ static int tegra_udc_probe(struct platform_device *pdev)
>  		return err;
>  	}
>  
> -	/*
> -	 * Tegra's USB PHY driver doesn't implement optional phy_init()
> -	 * hook, so we have to power on UDC controller before ChipIdea
> -	 * driver initialization kicks in.
> -	 */
> -	usb_phy_set_suspend(udc->phy, 0);
> -
>  	/* setup and register ChipIdea HDRC device */
>  	udc->data.name = "tegra-udc";
>  	udc->data.flags = soc->flags;
> @@ -109,7 +102,6 @@ static int tegra_udc_probe(struct platform_device *pdev)
>  	return 0;
>  
>  fail_power_off:
> -	usb_phy_set_suspend(udc->phy, 1);
>  	clk_disable_unprepare(udc->clk);
>  	return err;
>  }
> @@ -119,7 +111,6 @@ static int tegra_udc_remove(struct platform_device *pdev)
>  	struct tegra_udc *udc = platform_get_drvdata(pdev);
>  
>  	ci_hdrc_remove_device(udc->dev);
> -	usb_phy_set_suspend(udc->phy, 1);
>  	clk_disable_unprepare(udc->clk);
>  
>  	return 0;
> -- 
> 2.24.0
> 

Acked-by: Peter Chen <peter.chen@....com>

-- 

Thanks,
Peter Chen