[PATCH 09/10] PCI: dwc: Create a new config symbol to enable pci dwc host

Kishon Vijay Abraham I
2017-02-15T13:19:53Z

Now that pci designware host has a separate file, create a new
config symbol to select the host only driver. This will enable
to independently select host support and endpoint suppor
(when it's added).

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
drivers/pci/dwc/Kconfig | 26 +++++++++++++++-----------
drivers/pci/dwc/Makefile | 3 ++-
drivers/pci/dwc/pcie-designware.h | 29 +++++++++++++++++++++++++----
3 files changed, 42 insertions(+), 16 deletions(-)

diff --git a/drivers/pci/dwc/Kconfig b/drivers/pci/dwc/Kconfig
index deae261..ab92a0c 100644
--- a/drivers/pci/dwc/Kconfig
+++ b/drivers/pci/dwc/Kconfig
@@ -3,13 +3,17 @@ menu "DesignWare PCI Core Support"

config PCIE_DW
bool
+
+config PCIE_DW_HOST
+ bool
depends on PCI_MSI_IRQ_DOMAIN
+ select PCIE_DW

config PCI_DRA7XX
bool "TI DRA7xx PCIe controller"
depends on OF && HAS_IOMEM && TI_PIPE3
depends on PCI_MSI_IRQ_DOMAIN
- select PCIE_DW
+ select PCIE_DW_HOST
help
Enables support for the PCIe controller in the DRA7xx SoC. There
are two instances of PCIe controller in DRA7xx. This controller can
@@ -18,7 +22,7 @@ config PCI_DRA7XX
config PCIE_DW_PLAT
bool "Platform bus based DesignWare PCIe Controller"
depends on PCI_MSI_IRQ_DOMAIN
- select PCIE_DW
+ select PCIE_DW_HOST
---help---
This selects the DesignWare PCIe controller support. Select this if
you have a PCIe controller on Platform bus.
@@ -32,21 +36,21 @@ config PCI_EXYNOS
depends on SOC_EXYNOS5440
depends on PCI_MSI_IRQ_DOMAIN
select PCIEPORTBUS
- select PCIE_DW
+ select PCIE_DW_HOST

config PCI_IMX6
bool "Freescale i.MX6 PCIe controller"
depends on SOC_IMX6Q
depends on PCI_MSI_IRQ_DOMAIN
select PCIEPORTBUS
- select PCIE_DW
+ select PCIE_DW_HOST

config PCIE_SPEAR13XX
bool "STMicroelectronics SPEAr PCIe controller"
depends on ARCH_SPEAR13XX
depends on PCI_MSI_IRQ_DOMAIN
select PCIEPORTBUS
- select PCIE_DW
+ select PCIE_DW_HOST
help
Say Y here if you want PCIe support on SPEAr13XX SoCs.

@@ -55,7 +59,7 @@ config PCI_KEYSTONE
depends on ARCH_KEYSTONE
depends on PCI_MSI_IRQ_DOMAIN
select PCIEPORTBUS
- select PCIE_DW
+ select PCIE_DW_HOST
help
Say Y here if you want to enable PCI controller support on Keystone
SoCs. The PCI controller on Keystone is based on Designware hardware
@@ -67,7 +71,7 @@ config PCI_LAYERSCAPE
depends on OF && (ARM || ARCH_LAYERSCAPE)
depends on PCI_MSI_IRQ_DOMAIN
select MFD_SYSCON
- select PCIE_DW
+ select PCIE_DW_HOST
help
Say Y here if you want PCIe controller support on Layerscape SoCs.

@@ -76,7 +80,7 @@ config PCI_HISI
bool "HiSilicon Hip05 and Hip06 SoCs PCIe controllers"
depends on PCI_MSI_IRQ_DOMAIN
select PCIEPORTBUS
- select PCIE_DW
+ select PCIE_DW_HOST
help
Say Y here if you want PCIe controller support on HiSilicon
Hip05 and Hip06 SoCs
@@ -86,7 +90,7 @@ config PCIE_QCOM
depends on ARCH_QCOM && OF
depends on PCI_MSI_IRQ_DOMAIN
select PCIEPORTBUS
- select PCIE_DW
+ select PCIE_DW_HOST
help
Say Y here to enable PCIe controller support on Qualcomm SoCs. The
PCIe controller uses the Designware core plus Qualcomm-specific
@@ -97,7 +101,7 @@ config PCIE_ARMADA_8K
depends on ARCH_MVEBU
depends on PCI_MSI_IRQ_DOMAIN
select PCIEPORTBUS
- select PCIE_DW
+ select PCIE_DW_HOST
help
Say Y here if you want to enable PCIe controller support on
Armada-8K SoCs. The PCIe controller on Armada-8K is based on
@@ -109,7 +113,7 @@ config PCIE_ARTPEC6
depends on MACH_ARTPEC6
depends on PCI_MSI_IRQ_DOMAIN
select PCIEPORTBUS
- select PCIE_DW
+ select PCIE_DW_HOST
help
Say Y here to enable PCIe controller support on Axis ARTPEC-6
SoCs. This PCIe controller uses the DesignWare core.
diff --git a/drivers/pci/dwc/Makefile b/drivers/pci/dwc/Makefile
index 3b57e55..a2df13c 100644
--- a/drivers/pci/dwc/Makefile
+++ b/drivers/pci/dwc/Makefile
@@ -1,4 +1,5 @@
-obj-$(CONFIG_PCIE_DW) += pcie-designware.o pcie-designware-host.o
+obj-$(CONFIG_PCIE_DW) += pcie-designware.o
+obj-$(CONFIG_PCIE_DW_HOST) += pcie-designware-host.o
obj-$(CONFIG_PCIE_DW_PLAT) += pcie-designware-plat.o
obj-$(CONFIG_PCI_DRA7XX) += pci-dra7xx.o
obj-$(CONFIG_PCI_EXYNOS) += pci-exynos.o
diff --git a/drivers/pci/dwc/pcie-designware.h b/drivers/pci/dwc/pcie-designware.h
index 3054770..cd3b871 100644
--- a/drivers/pci/dwc/pcie-designware.h
+++ b/drivers/pci/dwc/pcie-designware.h
@@ -161,10 +161,6 @@ struct dw_pcie {

int dw_pcie_read(void __iomem *addr, int size, u32 *val);
int dw_pcie_write(void __iomem *addr, int size, u32 val);
-irqreturn_t dw_handle_msi_irq(struct pcie_port *pp);
-void dw_pcie_msi_init(struct pcie_port *pp);
-void dw_pcie_setup_rc(struct pcie_port *pp);
-int dw_pcie_host_init(struct pcie_port *pp);

u32 dw_pcie_readl_dbi(struct dw_pcie *pci, u32 reg);
void dw_pcie_writel_dbi(struct dw_pcie *pci, u32 reg, u32 val);
@@ -174,4 +170,29 @@ void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index,
int type, u64 cpu_addr, u64 pci_addr,
u32 size);
void dw_pcie_setup(struct dw_pcie *pci);
+
+#ifdef CONFIG_PCIE_DW_HOST
+irqreturn_t dw_handle_msi_irq(struct pcie_port *pp);
+void dw_pcie_msi_init(struct pcie_port *pp);
+void dw_pcie_setup_rc(struct pcie_port *pp);
+int dw_pcie_host_init(struct pcie_port *pp);
+#else
+static inline irqreturn_t dw_handle_msi_irq(struct pcie_port *pp)
+{
+ return IRQ_NONE;
+}
+
+static inline void dw_pcie_msi_init(struct pcie_port *pp)
+{
+}
+
+static inline void dw_pcie_setup_rc(struct pcie_port *pp)
+{
+}
+
+static inline int dw_pcie_host_init(struct pcie_port *pp)
+{
+ return 0;
+}
+#endif
#endif /* _PCIE_DESIGNWARE_H */
--
1.7.9.5