From: Richard Zhu <hongxing.zhu@nxp.com>
To: l.stach@pengutronix.de, bhelgaas@google.com, robh+dt@kernel.org,
broonie@kernel.org, lorenzo.pieralisi@arm.com,
festevam@gmail.com, francesco.dolcini@toradex.com
Cc: hongxing.zhu@nxp.com, linux-pci@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, kernel@pengutronix.de,
linux-imx@nxp.com
Subject: [PATCH v15 16/17] PCI: imx6: Move the imx6_pcie_ltssm_disable() earlier
Date: Thu, 14 Jul 2022 15:31:08 +0800 [thread overview]
Message-ID: <1657783869-19194-17-git-send-email-hongxing.zhu@nxp.com> (raw)
In-Reply-To: <1657783869-19194-1-git-send-email-hongxing.zhu@nxp.com>
Move the imx6_pcie_ltssm_disable() earlier and place it just behind the
imx6_pcie_ltssm_enable(), since it might not be only used by suspend
callback directly.
To be symmetric with imx6_pcie_ltssm_enable(), add the IMX6Q and IMX8MQ
switch cases in imx6_pcie_ltssm_disable().
Link: https://lore.kernel.org/r/1656645935-1370-17-git-send-email-hongxing.zhu@nxp.com
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/pci/controller/dwc/pci-imx6.c | 38 +++++++++++++--------------
1 file changed, 19 insertions(+), 19 deletions(-)
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 6d7ae141ec58..21e9101f63f0 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -805,6 +805,25 @@ static void imx6_pcie_ltssm_enable(struct device *dev)
}
}
+static void imx6_pcie_ltssm_disable(struct device *dev)
+{
+ struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
+
+ switch (imx6_pcie->drvdata->variant) {
+ case IMX6Q:
+ case IMX6SX:
+ case IMX6QP:
+ regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
+ IMX6Q_GPR12_PCIE_CTL_2, 0);
+ break;
+ case IMX7D:
+ case IMX8MQ:
+ case IMX8MM:
+ reset_control_assert(imx6_pcie->apps_reset);
+ break;
+ }
+}
+
static int imx6_pcie_start_link(struct dw_pcie *pci)
{
struct imx6_pcie *imx6_pcie = to_imx6_pcie(pci);
@@ -949,25 +968,6 @@ static const struct dw_pcie_ops dw_pcie_ops = {
};
#ifdef CONFIG_PM_SLEEP
-static void imx6_pcie_ltssm_disable(struct device *dev)
-{
- struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
-
- switch (imx6_pcie->drvdata->variant) {
- case IMX6SX:
- case IMX6QP:
- regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
- IMX6Q_GPR12_PCIE_CTL_2, 0);
- break;
- case IMX7D:
- case IMX8MM:
- reset_control_assert(imx6_pcie->apps_reset);
- break;
- default:
- dev_err(dev, "ltssm_disable not supported\n");
- }
-}
-
static void imx6_pcie_pm_turnoff(struct imx6_pcie *imx6_pcie)
{
struct device *dev = imx6_pcie->pci->dev;
--
2.25.1
next prev parent reply other threads:[~2022-07-14 7:48 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-14 7:30 [PATCH v15 0/17] PCI: imx6: refine codes and add the error propagation Richard Zhu
2022-07-14 7:30 ` [PATCH v15 01/17] PCI: imx6: Move imx6_pcie_grp_offset(), imx6_pcie_configure_type() earlier Richard Zhu
2022-07-14 7:30 ` [PATCH v15 02/17] PCI: imx6: Move PHY management functions together Richard Zhu
2022-07-14 7:30 ` [PATCH v15 03/17] PCI: imx6: Move imx6_pcie_enable_ref_clk() earlier Richard Zhu
2022-07-14 7:30 ` [PATCH v15 04/17] PCI: imx6: Move imx6_pcie_clk_disable() earlier Richard Zhu
2022-07-14 7:30 ` [PATCH v15 05/17] PCI: imx6: Factor out ref clock disable to match enable Richard Zhu
2022-07-14 7:30 ` [PATCH v15 06/17] PCI: imx6: Collect clock enables in imx6_pcie_clk_enable() Richard Zhu
2022-07-14 7:30 ` [PATCH v15 07/17] PCI: imx6: Propagate .host_init() errors to caller Richard Zhu
2022-07-14 7:31 ` [PATCH v15 08/17] PCI: imx6: Disable i.MX6QDL clock when disabling ref clocks Richard Zhu
2022-07-14 7:31 ` [PATCH v15 09/17] PCI: imx6: Call host init function directly in resume Richard Zhu
2022-07-14 7:31 ` [PATCH v15 10/17] PCI: imx6: Turn off regulator when system is in suspend mode Richard Zhu
2022-07-14 7:31 ` [PATCH v15 11/17] PCI: imx6: Move regulator enable out of imx6_pcie_deassert_core_reset() Richard Zhu
2022-07-14 7:31 ` [PATCH v15 12/17] PCI: imx6: Mark the link down as non-fatal error Richard Zhu
2022-07-14 7:31 ` [PATCH v15 13/17] PCI: imx6: Reduce resume time by only starting link if it was up before suspend Richard Zhu
2022-07-14 7:31 ` [PATCH v15 14/17] PCI: imx6: Do not hide PHY driver callbacks and refine the error handling Richard Zhu
2022-07-14 7:31 ` [PATCH v15 15/17] PCI: imx6: Disable clocks in reverse order of enable Richard Zhu
2022-07-14 7:31 ` Richard Zhu [this message]
2022-07-14 7:31 ` [PATCH v15 17/17] PCI: imx6: Reformat suspend callback to keep symmetric with resume Richard Zhu
2022-07-18 13:19 ` Guenter Roeck
2022-07-19 23:10 ` Bjorn Helgaas
2022-07-14 17:10 ` [PATCH v15 0/17] PCI: imx6: refine codes and add the error propagation Bjorn Helgaas
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