From: Frank Li <Frank.Li@nxp.com>
To: "Minghuan Lian" <minghuan.Lian@nxp.com>,
"Mingkai Hu" <mingkai.hu@nxp.com>, "Roy Zang" <roy.zang@nxp.com>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
linuxppc-dev@lists.ozlabs.org (open list:PCI DRIVER FOR
FREESCALE LAYERSCAPE),
linux-pci@vger.kernel.org (open list:PCI DRIVER FOR FREESCALE
LAYERSCAPE),
linux-arm-kernel@lists.infradead.org (moderated list:PCI DRIVER
FOR FREESCALE LAYERSCAPE),
linux-kernel@vger.kernel.org (open list)
Cc: imx@lists.linux.dev
Subject: [PATCH 1/3] PCI: layerscape: add function pointer for exit_from_l2()
Date: Fri, 15 Sep 2023 14:43:04 -0400 [thread overview]
Message-ID: <20230915184306.2374670-1-Frank.Li@nxp.com> (raw)
Difference layerscape chip have not difference exit_from_l2() method.
Using function pointer for ls1028. It prepare for other layerscape
suspend/resume support.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
drivers/pci/controller/dwc/pci-layerscape.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/controller/dwc/pci-layerscape.c b/drivers/pci/controller/dwc/pci-layerscape.c
index b931d597656f6..20c48c06e2248 100644
--- a/drivers/pci/controller/dwc/pci-layerscape.c
+++ b/drivers/pci/controller/dwc/pci-layerscape.c
@@ -39,6 +39,8 @@
struct ls_pcie_drvdata {
const u32 pf_off;
+ const struct dw_pcie_host_ops *ops;
+ void (*exit_from_l2)(struct dw_pcie_rp *pp);
bool pm_support;
};
@@ -180,6 +182,7 @@ static const struct ls_pcie_drvdata ls1021a_drvdata = {
static const struct ls_pcie_drvdata layerscape_drvdata = {
.pf_off = 0xc0000,
.pm_support = true,
+ .exit_from_l2 = ls_pcie_exit_from_l2,
};
static const struct of_device_id ls_pcie_of_match[] = {
@@ -213,7 +216,7 @@ static int ls_pcie_probe(struct platform_device *pdev)
pcie->drvdata = of_device_get_match_data(dev);
pci->dev = dev;
- pci->pp.ops = &ls_pcie_host_ops;
+ pci->pp.ops = pcie->drvdata->ops ? pcie->drvdata->ops : &ls_pcie_host_ops;
pcie->pci = pci;
@@ -251,7 +254,7 @@ static int ls_pcie_resume_noirq(struct device *dev)
if (!pcie->drvdata->pm_support)
return 0;
- ls_pcie_exit_from_l2(&pcie->pci->pp);
+ pcie->drvdata->exit_from_l2(&pcie->pci->pp);
return dw_pcie_resume_noirq(pcie->pci);
}
--
2.34.1
next reply other threads:[~2023-09-15 18:49 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-15 18:43 Frank Li [this message]
2023-09-15 18:43 ` [PATCH 2/3] PCI: layerscape: add suspend/resume for ls1021a Frank Li
2023-10-04 14:23 ` Frank Li
2023-10-10 14:20 ` Frank Li
2023-10-10 16:02 ` Lorenzo Pieralisi
2023-10-16 14:45 ` Frank Li
2023-10-16 15:22 ` Bjorn Helgaas
2023-10-16 16:11 ` Frank Li
2023-10-16 16:25 ` Bjorn Helgaas
2023-10-16 16:59 ` Frank Li
2023-10-16 16:25 ` Lorenzo Pieralisi
2023-10-16 16:12 ` Lorenzo Pieralisi
2023-10-16 16:58 ` Manivannan Sadhasivam
2023-10-16 20:18 ` Frank Li
2023-10-17 8:17 ` Manivannan Sadhasivam
2023-09-15 18:43 ` [PATCH 3/3] PCI: layerscape: add suspend/resume for ls1043a Frank Li
2023-10-16 17:07 ` Manivannan Sadhasivam
2023-10-16 16:40 ` [PATCH 1/3] PCI: layerscape: add function pointer for exit_from_l2() Manivannan Sadhasivam
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