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| author | Bjorn Helgaas <bhelgaas@google.com> | 2024-01-15 19:10:38 +0100 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2024-01-15 19:10:38 +0100 |
| commit | 1800c660b08f3f1ab365063dcfe842b5d45d079c (patch) | |
| tree | dd4d0f092c4eb95246f3e3d0db846fff09a3668c /drivers/pci/controller/dwc/pci-layerscape-ep.c | |
| parent | Merge branch 'pci/controller/kirin' (diff) | |
| parent | PCI: layerscape: Add suspend/resume for ls1043a (diff) | |
| download | linux-1800c660b08f3f1ab365063dcfe842b5d45d079c.tar.xz linux-1800c660b08f3f1ab365063dcfe842b5d45d079c.zip | |
Merge branch 'pci/controller/layerscape'
- Add suspend/resume support for Layerscape LS1043a, including
software-managed PME_Turn_Off and transitions between L0, L2/L3_Ready
Link states (Frank Li)
* pci/controller/layerscape:
PCI: layerscape: Add suspend/resume for ls1043a
PCI: layerscape(ep): Rename pf_* as pf_lut_*
PCI: layerscape: Add suspend/resume for ls1021a
PCI: layerscape: Add function pointer for exit_from_l2()
Diffstat (limited to 'drivers/pci/controller/dwc/pci-layerscape-ep.c')
| -rw-r--r-- | drivers/pci/controller/dwc/pci-layerscape-ep.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c index 961ff1b719a1..3bb50169b1e3 100644 --- a/drivers/pci/controller/dwc/pci-layerscape-ep.c +++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c @@ -49,7 +49,7 @@ struct ls_pcie_ep { bool big_endian; }; -static u32 ls_lut_readl(struct ls_pcie_ep *pcie, u32 offset) +static u32 ls_pcie_pf_lut_readl(struct ls_pcie_ep *pcie, u32 offset) { struct dw_pcie *pci = pcie->pci; @@ -59,7 +59,7 @@ static u32 ls_lut_readl(struct ls_pcie_ep *pcie, u32 offset) return ioread32(pci->dbi_base + offset); } -static void ls_lut_writel(struct ls_pcie_ep *pcie, u32 offset, u32 value) +static void ls_pcie_pf_lut_writel(struct ls_pcie_ep *pcie, u32 offset, u32 value) { struct dw_pcie *pci = pcie->pci; @@ -76,8 +76,8 @@ static irqreturn_t ls_pcie_ep_event_handler(int irq, void *dev_id) u32 val, cfg; u8 offset; - val = ls_lut_readl(pcie, PEX_PF0_PME_MES_DR); - ls_lut_writel(pcie, PEX_PF0_PME_MES_DR, val); + val = ls_pcie_pf_lut_readl(pcie, PEX_PF0_PME_MES_DR); + ls_pcie_pf_lut_writel(pcie, PEX_PF0_PME_MES_DR, val); if (!val) return IRQ_NONE; @@ -96,9 +96,9 @@ static irqreturn_t ls_pcie_ep_event_handler(int irq, void *dev_id) dw_pcie_writel_dbi(pci, offset + PCI_EXP_LNKCAP, pcie->lnkcap); dw_pcie_dbi_ro_wr_dis(pci); - cfg = ls_lut_readl(pcie, PEX_PF0_CONFIG); + cfg = ls_pcie_pf_lut_readl(pcie, PEX_PF0_CONFIG); cfg |= PEX_PF0_CFG_READY; - ls_lut_writel(pcie, PEX_PF0_CONFIG, cfg); + ls_pcie_pf_lut_writel(pcie, PEX_PF0_CONFIG, cfg); dw_pcie_ep_linkup(&pci->ep); dev_dbg(pci->dev, "Link up\n"); @@ -130,10 +130,10 @@ static int ls_pcie_ep_interrupt_init(struct ls_pcie_ep *pcie, } /* Enable interrupts */ - val = ls_lut_readl(pcie, PEX_PF0_PME_MES_IER); + val = ls_pcie_pf_lut_readl(pcie, PEX_PF0_PME_MES_IER); val |= PEX_PF0_PME_MES_IER_LDDIE | PEX_PF0_PME_MES_IER_HRDIE | PEX_PF0_PME_MES_IER_LUDIE; - ls_lut_writel(pcie, PEX_PF0_PME_MES_IER, val); + ls_pcie_pf_lut_writel(pcie, PEX_PF0_PME_MES_IER, val); return 0; } |