linux-kernel - Re: [PATCH v14 01/17] PCI: imx6: Move imx6_pcie_grp_offset(), imx6_pcie_configure

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Message-ID: <45a3906d333ab9d6331bc7f089be4914a33b8c7a.camel@pengutronix.de>
Date:   Wed, 13 Jul 2022 10:13:53 +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,
        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 v14 01/17] PCI: imx6: Move imx6_pcie_grp_offset(),
 imx6_pcie_configure_type() earlier

Am Freitag, dem 01.07.2022 um 11:25 +0800 schrieb Richard Zhu:
> From: Bjorn Helgaas <bhelgaas@...gle.com>
> 
> Move imx6_pcie_grp_offset() and imx6_pcie_configure_type() earlier in the
> file since they depend on nothing and are used by several other functions
> that will be moved earlier.  No functional change intended.
> 
> Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
> Acked-by: Richard Zhu <hongxing.zhu@....com>

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

> ---
>  drivers/pci/controller/dwc/pci-imx6.c | 50 +++++++++++++--------------
>  1 file changed, 25 insertions(+), 25 deletions(-)
> 
> diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
> index 7a285fb0f619..8653ca8cbfb9 100644
> --- a/drivers/pci/controller/dwc/pci-imx6.c
> +++ b/drivers/pci/controller/dwc/pci-imx6.c
> @@ -146,6 +146,31 @@ struct imx6_pcie {
>  #define PHY_RX_OVRD_IN_LO_RX_DATA_EN		BIT(5)
>  #define PHY_RX_OVRD_IN_LO_RX_PLL_EN		BIT(3)
>  
> +static unsigned int imx6_pcie_grp_offset(const struct imx6_pcie *imx6_pcie)
> +{
> +	WARN_ON(imx6_pcie->drvdata->variant != IMX8MQ &&
> +		imx6_pcie->drvdata->variant != IMX8MM);
> +	return imx6_pcie->controller_id == 1 ? IOMUXC_GPR16 : IOMUXC_GPR14;
> +}
> +
> +static void imx6_pcie_configure_type(struct imx6_pcie *imx6_pcie)
> +{
> +	unsigned int mask, val;
> +
> +	if (imx6_pcie->drvdata->variant == IMX8MQ &&
> +	    imx6_pcie->controller_id == 1) {
> +		mask = IMX8MQ_GPR12_PCIE2_CTRL_DEVICE_TYPE;
> +		val  = FIELD_PREP(IMX8MQ_GPR12_PCIE2_CTRL_DEVICE_TYPE,
> +				  PCI_EXP_TYPE_ROOT_PORT);
> +	} else {
> +		mask = IMX6Q_GPR12_DEVICE_TYPE;
> +		val  = FIELD_PREP(IMX6Q_GPR12_DEVICE_TYPE,
> +				  PCI_EXP_TYPE_ROOT_PORT);
> +	}
> +
> +	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12, mask, val);
> +}
> +
>  static int pcie_phy_poll_ack(struct imx6_pcie *imx6_pcie, bool exp_val)
>  {
>  	struct dw_pcie *pci = imx6_pcie->pci;
> @@ -415,13 +440,6 @@ static void imx6_pcie_assert_core_reset(struct imx6_pcie *imx6_pcie)
>  					imx6_pcie->gpio_active_high);
>  }
>  
> -static unsigned int imx6_pcie_grp_offset(const struct imx6_pcie *imx6_pcie)
> -{
> -	WARN_ON(imx6_pcie->drvdata->variant != IMX8MQ &&
> -		imx6_pcie->drvdata->variant != IMX8MM);
> -	return imx6_pcie->controller_id == 1 ? IOMUXC_GPR16 : IOMUXC_GPR14;
> -}
> -
>  static int imx6_pcie_enable_ref_clk(struct imx6_pcie *imx6_pcie)
>  {
>  	struct dw_pcie *pci = imx6_pcie->pci;
> @@ -617,24 +635,6 @@ static void imx6_pcie_deassert_core_reset(struct imx6_pcie *imx6_pcie)
>  	}
>  }
>  
> -static void imx6_pcie_configure_type(struct imx6_pcie *imx6_pcie)
> -{
> -	unsigned int mask, val;
> -
> -	if (imx6_pcie->drvdata->variant == IMX8MQ &&
> -	    imx6_pcie->controller_id == 1) {
> -		mask   = IMX8MQ_GPR12_PCIE2_CTRL_DEVICE_TYPE;
> -		val    = FIELD_PREP(IMX8MQ_GPR12_PCIE2_CTRL_DEVICE_TYPE,
> -				    PCI_EXP_TYPE_ROOT_PORT);
> -	} else {
> -		mask = IMX6Q_GPR12_DEVICE_TYPE;
> -		val  = FIELD_PREP(IMX6Q_GPR12_DEVICE_TYPE,
> -				  PCI_EXP_TYPE_ROOT_PORT);
> -	}
> -
> -	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12, mask, val);
> -}
> -
>  static void imx6_pcie_init_phy(struct imx6_pcie *imx6_pcie)
>  {
>  	switch (imx6_pcie->drvdata->variant) {