linux-kernel - Re: [PATCH v5 4/6] PCI: imx6: Don't poll LTSSM state of i.MX7D PCIe in PM operations

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Message-ID: <jj2zirv5d2ly2otqyiyuid7au2lw4ygthiwhp7ptqs5lmvxbve@k43sdnqrvqx7>
Date: Sat, 20 Sep 2025 12:00:59 +0530
From: Manivannan Sadhasivam <mani@...nel.org>
To: Richard Zhu <hongxing.zhu@....com>
Cc: frank.li@....com, jingoohan1@...il.com, l.stach@...gutronix.de, 
	lpieralisi@...nel.org, kwilczynski@...nel.org, robh@...nel.org, bhelgaas@...gle.com, 
	shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de, 
	festevam@...il.com, linux-pci@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	imx@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 4/6] PCI: imx6: Don't poll LTSSM state of i.MX7D PCIe
 in PM operations

On Tue, Sep 02, 2025 at 04:01:49PM +0800, Richard Zhu wrote:
> Add a quirk flag(QUIRK_NOL2POLL_IN_PM) for i.MX7D PCIe. Don't poll the
> LTSSM states after issue the PME_Turn_Off message.
> 
> Signed-off-by: Richard Zhu <hongxing.zhu@....com>

This one too should be squashed with patch 2.

- Mani

> Reviewed-by: Frank Li <Frank.Li@....com>
> ---
>  drivers/pci/controller/dwc/pci-imx6.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
> index 18b97bd0462b..a59b5282c3cc 100644
> --- a/drivers/pci/controller/dwc/pci-imx6.c
> +++ b/drivers/pci/controller/dwc/pci-imx6.c
> @@ -1863,6 +1863,7 @@ static const struct imx_pcie_drvdata drvdata[] = {
>  		.mode_mask[0] = IMX6Q_GPR12_DEVICE_TYPE,
>  		.enable_ref_clk = imx7d_pcie_enable_ref_clk,
>  		.core_reset = imx7d_pcie_core_reset,
> +		.quirk = QUIRK_NOL2POLL_IN_PM,
>  	},
>  	[IMX8MQ] = {
>  		.variant = IMX8MQ,
> -- 
> 2.37.1
> 

-- 
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