From: Lorenzo Pieralisi <lpieralisi@kernel.org>
To: Frank Li <Frank.Li@nxp.com>, bhelgaas@google.com
Cc: helgaas@kernel.org, devicetree@vger.kernel.org,
gustavo.pimentel@synopsys.com, imx@lists.linux.dev, kw@linux.com,
leoyang.li@nxp.com, linux-arm-kernel@lists.infradead.org,
linux-imx@nxp.com, linux-kernel@vger.kernel.org,
linux-pci@vger.kernel.org, lorenzo.pieralisi@arm.com,
mani@kernel.org, manivannan.sadhasivam@linaro.org,
minghuan.lian@nxp.com, mingkai.hu@nxp.com, robh+dt@kernel.org,
roy.zang@nxp.com, shawnguo@kernel.org, zhiqiang.hou@nxp.com
Subject: Re: [PATCH v11 1/3] PCI: Add macro PCIE_PME_TO_L2_TIMEOUT_US
Date: Wed, 16 Aug 2023 12:20:08 +0200 [thread overview]
Message-ID: <ZNyi2BkInSyUPYEU@lpieralisi> (raw)
In-Reply-To: <20230809153540.834653-2-Frank.Li@nxp.com>
On Wed, Aug 09, 2023 at 11:35:38AM -0400, Frank Li wrote:
> Introduce the PCIE_PME_TO_L2_TIMEOUT_US macro to facilitate checking the
> L2 ready timeout in the PCI subsystem.
>
> Acked-by: Manivannan Sadhasivam <mani@kernel.org>
> Signed-off-by: Frank Li <Frank.Li@nxp.com>
> ---
> drivers/pci/pci.h | 6 ++++++
> 1 file changed, 6 insertions(+)
This patch requires Bjorn's ACK.
Lorenzo
> diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
> index a4c3974340576..da8156663c825 100644
> --- a/drivers/pci/pci.h
> +++ b/drivers/pci/pci.h
> @@ -13,6 +13,12 @@
>
> #define PCIE_LINK_RETRAIN_TIMEOUT_MS 1000
>
> +/*
> + * PCIe r6.0, sec 5.3.3.2.1 <PME Synchronization>
> + * Recommends 1ms to 10ms timeout to check L2 ready.
> + */
> +#define PCIE_PME_TO_L2_TIMEOUT_US 10000
> +
> extern const unsigned char pcie_link_speed[];
> extern bool pci_early_dump;
>
> --
> 2.34.1
>
next prev parent reply other threads:[~2023-08-16 10:21 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-09 15:35 [PATCH v11 resend 0/3] dwc general suspend/resume functionality Frank Li
2023-08-09 15:35 ` [PATCH v11 1/3] PCI: Add macro PCIE_PME_TO_L2_TIMEOUT_US Frank Li
2023-08-16 10:20 ` Lorenzo Pieralisi [this message]
2023-08-16 11:44 ` Bjorn Helgaas
2023-08-09 15:35 ` [PATCH v11 2/3] PCI: dwc: Implement general suspend/resume functionality for L2/L3 transitions Frank Li
2023-08-09 15:35 ` [PATCH v11 3/3] PCI: layerscape: Add power management support for ls1028a Frank Li
2023-08-16 15:30 ` Lorenzo Pieralisi
2023-08-17 22:42 ` Frank Li
2023-08-21 8:21 ` Lorenzo Pieralisi
2023-08-21 10:33 ` Manivannan Sadhasivam
2023-08-21 15:23 ` Frank Li
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