From: Lucas Stach <l.stach@pengutronix.de>
To: Richard Zhu <hongxing.zhu@nxp.com>,
bhelgaas@google.com, lorenzo.pieralisi@arm.com,
shawnguo@kernel.org
Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, kernel@pengutronix.de,
linux-imx@nxp.com
Subject: Re: [RFC 2/2] PCI: imx6: Enable imx6qp pcie power management support
Date: Wed, 09 Feb 2022 10:07:59 +0100 [thread overview]
Message-ID: <48735d86d0685a0c94e74481ed5fdf6fe66da8be.camel@pengutronix.de> (raw)
In-Reply-To: <1644390156-5940-2-git-send-email-hongxing.zhu@nxp.com>
s/pcie/PCIe/ and maybe s/imx6qp/i.MX6QP/ in the subject.
Am Mittwoch, dem 09.02.2022 um 15:02 +0800 schrieb Richard Zhu:
> i.MX6QP PCIe supports the RESET logic, thus it can support
> the L2 exit by the reset mechanism.
> Enable the i.MX6QP PCIe suspend/resume operations support.
>
> Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Other than the nitpick:
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
> ---
> drivers/pci/controller/dwc/pci-imx6.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
> index 784801f2f9e6..62262483470a 100644
> --- a/drivers/pci/controller/dwc/pci-imx6.c
> +++ b/drivers/pci/controller/dwc/pci-imx6.c
> @@ -995,6 +995,7 @@ static void imx6_pcie_pm_turnoff(struct imx6_pcie *imx6_pcie)
> /* Others poke directly at IOMUXC registers */
> switch (imx6_pcie->drvdata->variant) {
> case IMX6SX:
> + case IMX6QP:
> regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
> IMX6SX_GPR12_PCIE_PM_TURN_OFF,
> IMX6SX_GPR12_PCIE_PM_TURN_OFF);
> @@ -1307,7 +1308,8 @@ static const struct imx6_pcie_drvdata drvdata[] = {
> [IMX6QP] = {
> .variant = IMX6QP,
> .flags = IMX6_PCIE_FLAG_IMX6_PHY |
> - IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE,
> + IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE |
> + IMX6_PCIE_FLAG_SUPPORTS_SUSPEND,
> .dbi_length = 0x200,
> },
> [IMX7D] = {
next prev parent reply other threads:[~2022-02-09 9:08 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-09 7:02 [RFC 1/2] ARM: dts: imx6qp-sabresd: Enable pcie support Richard Zhu
2022-02-09 7:02 ` [RFC 2/2] PCI: imx6: Enable imx6qp pcie power management support Richard Zhu
2022-02-09 9:07 ` Lucas Stach [this message]
2022-02-10 1:58 ` Hongxing Zhu
2022-02-09 15:36 ` Bjorn Helgaas
2022-02-10 3:23 ` Hongxing Zhu
2022-02-10 22:04 ` Bjorn Helgaas
2022-02-11 2:05 ` Hongxing Zhu
2022-02-11 16:53 ` Bjorn Helgaas
2022-02-15 3:16 ` Hongxing Zhu
2022-02-09 9:05 ` [RFC 1/2] ARM: dts: imx6qp-sabresd: Enable pcie support Lucas Stach
2022-02-10 1:49 ` Hongxing Zhu
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