linux-kernel - Re: [PATCH v9 3/8] PCI: imx6: Move imx6_pcie_clk

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Message-ID: <4efc78897fb07be99bde2921f69ae6aefd13bef2.camel@pengutronix.de>
Date:   Wed, 08 Jun 2022 09:14:02 +0200
From:   Lucas Stach <l.stach@...gutronix.de>
To:     Richard Zhu <hongxing.zhu@....com>, bhelgaas@...gle.com,
        robh+dt@...nel.org, broonie@...nel.org, lorenzo.pieralisi@....com,
        jingoohan1@...il.com, festevam@...il.com,
        francesco.dolcini@...adex.com
Cc:     linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, kernel@...gutronix.de,
        linux-imx@....com
Subject: Re: [PATCH v9 3/8] PCI: imx6: Move imx6_pcie_clk_disable() earlier

Am Freitag, dem 06.05.2022 um 09:47 +0800 schrieb Richard Zhu:
> Just move the imx6_pcie_clk_disable() to an earlier place without function
> changes, since it wouldn't be only used in imx6_pcie_suspend_noirq() later.
> 
> Signed-off-by: Richard Zhu <hongxing.zhu@....com>

Reviewed-by: Lucas Stach <l.stach@...gutronix.de>

> ---
>  drivers/pci/controller/dwc/pci-imx6.c | 48 +++++++++++++--------------
>  1 file changed, 24 insertions(+), 24 deletions(-)
> 
> diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
> index 1d3a8a7cafc2..9b0eac64badc 100644
> --- a/drivers/pci/controller/dwc/pci-imx6.c
> +++ b/drivers/pci/controller/dwc/pci-imx6.c
> @@ -529,6 +529,30 @@ static int imx6_pcie_clk_enable(struct imx6_pcie *imx6_pcie)
>  	return ret;
>  }
>  
> +static void imx6_pcie_clk_disable(struct imx6_pcie *imx6_pcie)
> +{
> +	clk_disable_unprepare(imx6_pcie->pcie);
> +	clk_disable_unprepare(imx6_pcie->pcie_phy);
> +	clk_disable_unprepare(imx6_pcie->pcie_bus);
> +
> +	switch (imx6_pcie->drvdata->variant) {
> +	case IMX6SX:
> +		clk_disable_unprepare(imx6_pcie->pcie_inbound_axi);
> +		break;
> +	case IMX7D:
> +		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
> +				   IMX7D_GPR12_PCIE_PHY_REFCLK_SEL,
> +				   IMX7D_GPR12_PCIE_PHY_REFCLK_SEL);
> +		break;
> +	case IMX8MQ:
> +	case IMX8MM:
> +		clk_disable_unprepare(imx6_pcie->pcie_aux);
> +		break;
> +	default:
> +		break;
> +	}
> +}
> +
>  static void imx7d_pcie_wait_for_phy_pll_lock(struct imx6_pcie *imx6_pcie)
>  {
>  	u32 val;
> @@ -961,30 +985,6 @@ static void imx6_pcie_pm_turnoff(struct imx6_pcie *imx6_pcie)
>  	usleep_range(1000, 10000);
>  }
>  
> -static void imx6_pcie_clk_disable(struct imx6_pcie *imx6_pcie)
> -{
> -	clk_disable_unprepare(imx6_pcie->pcie);
> -	clk_disable_unprepare(imx6_pcie->pcie_phy);
> -	clk_disable_unprepare(imx6_pcie->pcie_bus);
> -
> -	switch (imx6_pcie->drvdata->variant) {
> -	case IMX6SX:
> -		clk_disable_unprepare(imx6_pcie->pcie_inbound_axi);
> -		break;
> -	case IMX7D:
> -		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
> -				   IMX7D_GPR12_PCIE_PHY_REFCLK_SEL,
> -				   IMX7D_GPR12_PCIE_PHY_REFCLK_SEL);
> -		break;
> -	case IMX8MQ:
> -	case IMX8MM:
> -		clk_disable_unprepare(imx6_pcie->pcie_aux);
> -		break;
> -	default:
> -		break;
> -	}
> -}
> -
>  static int imx6_pcie_suspend_noirq(struct device *dev)
>  {
>  	struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);