linux-kernel - Re: [PATCH v1 4/9] PCI: imx6: Correct controller

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Message-ID: <ZvLbSHPZvVFXcT+t@lizhi-Precision-Tower-5810>
Date: Tue, 24 Sep 2024 11:31:20 -0400
From: Frank Li <Frank.li@....com>
To: Richard Zhu <hongxing.zhu@....com>
Cc: l.stach@...gutronix.de, kwilczynski@...nel.org, bhelgaas@...gle.com,
	lpieralisi@...nel.org, robh+dt@...nel.org, conor+dt@...nel.org,
	shawnguo@...nel.org, krzysztof.kozlowski+dt@...aro.org,
	festevam@...il.com, s.hauer@...gutronix.de,
	linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	kernel@...gutronix.de, imx@...ts.linux.dev
Subject: Re: [PATCH v1 4/9] PCI: imx6: Correct controller_id generation logic
 for i.MX7D

On Tue, Sep 24, 2024 at 11:27:39AM +0800, Richard Zhu wrote:
> i.MX7D only has one PCIe controller, so controller_id should always be 0.
> The previous code is incorrect although yielding the correct result.
> Fix by removing IMX7D from the switch case branch.

nit: wrap to 75 chars.

>
> Signed-off-by: Richard Zhu <hongxing.zhu@....com>
> ---

Reviewed-by: Frank Li <Frank.Li@....com>

>  drivers/pci/controller/dwc/pci-imx6.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
> index e8e401729893..d49154dbb1bd 100644
> --- a/drivers/pci/controller/dwc/pci-imx6.c
> +++ b/drivers/pci/controller/dwc/pci-imx6.c
> @@ -1338,7 +1338,6 @@ static int imx_pcie_probe(struct platform_device *pdev)
>  	switch (imx_pcie->drvdata->variant) {
>  	case IMX8MQ:
>  	case IMX8MQ_EP:
> -	case IMX7D:
>  		if (dbi_base->start == IMX8MQ_PCIE2_BASE_ADDR)
>  			imx_pcie->controller_id = 1;
>  		break;
> --
> 2.37.1
>