leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

PCI: dwc: dra7xx: Facilitate wrapper and MSI interrupts to be enabled independently

Browse Source 
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: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Kishon Vijay Abraham I 2017-03-27 15:15:07 +05:30 committed by Bjorn Helgaas
parent b12befecd7
commit 5ffd90a035
1 changed files with 19 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/pci/dwc/pci-dra7xx.c
View File

@ -140,16 +140,28 @@ static int dra7xx_pcie_establish_link(struct dra7xx_pcie *dra7xx)
return dw_pcie_wait_for_link(pci); 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_MSI,
~LEG_EP_INTERRUPTS & ~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, dra7xx_pcie_writel(dra7xx, PCIECTRL_DRA7XX_CONF_IRQSTATUS_MAIN,
~INTERRUPTS); ~INTERRUPTS);
dra7xx_pcie_writel(dra7xx, dra7xx_pcie_writel(dra7xx, PCIECTRL_DRA7XX_CONF_IRQENABLE_SET_MAIN,
PCIECTRL_DRA7XX_CONF_IRQENABLE_SET_MAIN, INTERRUPTS); INTERRUPTS);
dra7xx_pcie_writel(dra7xx, PCIECTRL_DRA7XX_CONF_IRQSTATUS_MSI, }
~LEG_EP_INTERRUPTS & ~MSI);
dra7xx_pcie_writel(dra7xx, PCIECTRL_DRA7XX_CONF_IRQENABLE_SET_MSI, static void dra7xx_pcie_enable_interrupts(struct dra7xx_pcie *dra7xx)
MSI | LEG_EP_INTERRUPTS); {
dra7xx_pcie_enable_wrapper_interrupts(dra7xx);
dra7xx_pcie_enable_msi_interrupts(dra7xx);
} }
static void dra7xx_pcie_host_init(struct pcie_port *pp) static void dra7xx_pcie_host_init(struct pcie_port *pp)