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Commit 5ffd90a0 authored by Kishon Vijay Abraham I's avatar Kishon Vijay Abraham I Committed by Bjorn Helgaas
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PCI: dwc: dra7xx: Facilitate wrapper and MSI interrupts to be enabled independently 



No functional change. Split dra7xx_pcie_enable_interrupts() into
dra7xx_pcie_enable_wrapper_interrupts() and
dra7xx_pcie_enable_msi_interrupts() so that wrapper interrupts and MSI
interrupts can be enabled independently.  This is in preparation for adding
EP mode support to dra7xx driver since EP mode doesn't have to enable
msi_interrupts.

Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent b12befec

drivers/pci/dwc/pci-dra7xx.c

+18 −6
Original line number Diff line number Diff line
@@ -140,18 +140,30 @@ static int dra7xx_pcie_establish_link(struct dra7xx_pcie *dra7xx) 
	return dw_pcie_wait_for_link(pci);

}



static void dra7xx_pcie_enable_interrupts(struct dra7xx_pcie *dra7xx)

static void dra7xx_pcie_enable_msi_interrupts(struct dra7xx_pcie *dra7xx)

{

	dra7xx_pcie_writel(dra7xx, PCIECTRL_DRA7XX_CONF_IRQSTATUS_MAIN,

			   ~INTERRUPTS);

	dra7xx_pcie_writel(dra7xx,

			   PCIECTRL_DRA7XX_CONF_IRQENABLE_SET_MAIN, INTERRUPTS);

	dra7xx_pcie_writel(dra7xx, PCIECTRL_DRA7XX_CONF_IRQSTATUS_MSI,

			   ~LEG_EP_INTERRUPTS & ~MSI);

	dra7xx_pcie_writel(dra7xx, PCIECTRL_DRA7XX_CONF_IRQENABLE_SET_MSI,



	dra7xx_pcie_writel(dra7xx,

			   PCIECTRL_DRA7XX_CONF_IRQENABLE_SET_MSI,

			   MSI | LEG_EP_INTERRUPTS);

}



static void dra7xx_pcie_enable_wrapper_interrupts(struct dra7xx_pcie *dra7xx)

{

	dra7xx_pcie_writel(dra7xx, PCIECTRL_DRA7XX_CONF_IRQSTATUS_MAIN,

			   ~INTERRUPTS);

	dra7xx_pcie_writel(dra7xx, PCIECTRL_DRA7XX_CONF_IRQENABLE_SET_MAIN,

			   INTERRUPTS);

}



static void dra7xx_pcie_enable_interrupts(struct dra7xx_pcie *dra7xx)

{

	dra7xx_pcie_enable_wrapper_interrupts(dra7xx);

	dra7xx_pcie_enable_msi_interrupts(dra7xx);

}



static void dra7xx_pcie_host_init(struct pcie_port *pp)

{

	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);