PCI: designware: Fold struct pcie_port_info into struct pcie_port

The struct pcie_port_info doesn't contain any exclusive information
compared to other elements of struct pcie_port.  So, keeping a separate
structure does not seem very logical.  Therefore remove this struct and
embed its elements directly into struct pcie_port.

Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mohit Kumar <mohit.kumar@st.com>

2 files changed, 33 insertions, 38 deletions

diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 12c42fcd7c35..5d720c21fdc0 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -423,16 +423,16 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
 
 	cfg_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "config");
 	if (cfg_res) {
-		pp->config.cfg0_size = resource_size(cfg_res)/2;
-		pp->config.cfg1_size = resource_size(cfg_res)/2;
+		pp->cfg0_size = resource_size(cfg_res)/2;
+		pp->cfg1_size = resource_size(cfg_res)/2;
 		pp->cfg0_base = cfg_res->start;
-		pp->cfg1_base = cfg_res->start + pp->config.cfg0_size;
+		pp->cfg1_base = cfg_res->start + pp->cfg0_size;
 
 		/* Find the untranslated configuration space address */
 		index = of_property_match_string(np, "reg-names", "config");
 		addrp = of_get_address(np, index, false, false);
 		pp->cfg0_mod_base = of_read_number(addrp, ns);
-		pp->cfg1_mod_base = pp->cfg0_mod_base + pp->config.cfg0_size;
+		pp->cfg1_mod_base = pp->cfg0_mod_base + pp->cfg0_size;
 	} else {
 		dev_err(pp->dev, "missing *config* reg space\n");
 	}
@@ -455,8 +455,8 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
 					   IO_SPACE_LIMIT,
 					   range.pci_addr + range.size
 					   + global_io_offset);
-			pp->config.io_size = resource_size(&pp->io);
-			pp->config.io_bus_addr = range.pci_addr;
+			pp->io_size = resource_size(&pp->io);
+			pp->io_bus_addr = range.pci_addr;
 			pp->io_base = range.cpu_addr;
 
 			/* Find the untranslated IO space address */
@@ -466,8 +466,8 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
 		if (restype == IORESOURCE_MEM) {
 			of_pci_range_to_resource(&range, np, &pp->mem);
 			pp->mem.name = "MEM";
-			pp->config.mem_size = resource_size(&pp->mem);
-			pp->config.mem_bus_addr = range.pci_addr;
+			pp->mem_size = resource_size(&pp->mem);
+			pp->mem_bus_addr = range.pci_addr;
 
 			/* Find the untranslated MEM space address */
 			pp->mem_mod_base = of_read_number(parser.range -
@@ -475,16 +475,16 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
 		}
 		if (restype == 0) {
 			of_pci_range_to_resource(&range, np, &pp->cfg);
-			pp->config.cfg0_size = resource_size(&pp->cfg)/2;
-			pp->config.cfg1_size = resource_size(&pp->cfg)/2;
+			pp->cfg0_size = resource_size(&pp->cfg)/2;
+			pp->cfg1_size = resource_size(&pp->cfg)/2;
 			pp->cfg0_base = pp->cfg.start;
-			pp->cfg1_base = pp->cfg.start + pp->config.cfg0_size;
+			pp->cfg1_base = pp->cfg.start + pp->cfg0_size;
 
 			/* Find the untranslated configuration space address */
 			pp->cfg0_mod_base = of_read_number(parser.range -
 							   parser.np + na, ns);
 			pp->cfg1_mod_base = pp->cfg0_mod_base +
-					    pp->config.cfg0_size;
+					    pp->cfg0_size;
 		}
 	}
 
@@ -512,7 +512,7 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
 	if (!pp->va_cfg0_base) {
 		pp->cfg0_base = pp->cfg.start;
 		pp->va_cfg0_base = devm_ioremap(pp->dev, pp->cfg0_base,
-						pp->config.cfg0_size);
+						pp->cfg0_size);
 		if (!pp->va_cfg0_base) {
 			dev_err(pp->dev, "error with ioremap in function\n");
 			return -ENOMEM;
@@ -520,9 +520,9 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
 	}
 
 	if (!pp->va_cfg1_base) {
-		pp->cfg1_base = pp->cfg.start + pp->config.cfg0_size;
+		pp->cfg1_base = pp->cfg.start + pp->cfg0_size;
 		pp->va_cfg1_base = devm_ioremap(pp->dev, pp->cfg1_base,
-						pp->config.cfg1_size);
+						pp->cfg1_size);
 		if (!pp->va_cfg1_base) {
 			dev_err(pp->dev, "error with ioremap\n");
 			return -ENOMEM;
@@ -583,7 +583,7 @@ static void dw_pcie_prog_viewport_cfg0(struct pcie_port *pp, u32 busdev)
 			  PCIE_ATU_VIEWPORT);
 	dw_pcie_writel_rc(pp, pp->cfg0_mod_base, PCIE_ATU_LOWER_BASE);
 	dw_pcie_writel_rc(pp, (pp->cfg0_mod_base >> 32), PCIE_ATU_UPPER_BASE);
-	dw_pcie_writel_rc(pp, pp->cfg0_mod_base + pp->config.cfg0_size - 1,
+	dw_pcie_writel_rc(pp, pp->cfg0_mod_base + pp->cfg0_size - 1,
 			  PCIE_ATU_LIMIT);
 	dw_pcie_writel_rc(pp, busdev, PCIE_ATU_LOWER_TARGET);
 	dw_pcie_writel_rc(pp, 0, PCIE_ATU_UPPER_TARGET);
@@ -599,7 +599,7 @@ static void dw_pcie_prog_viewport_cfg1(struct pcie_port *pp, u32 busdev)
 	dw_pcie_writel_rc(pp, PCIE_ATU_TYPE_CFG1, PCIE_ATU_CR1);
 	dw_pcie_writel_rc(pp, pp->cfg1_mod_base, PCIE_ATU_LOWER_BASE);
 	dw_pcie_writel_rc(pp, (pp->cfg1_mod_base >> 32), PCIE_ATU_UPPER_BASE);
-	dw_pcie_writel_rc(pp, pp->cfg1_mod_base + pp->config.cfg1_size - 1,
+	dw_pcie_writel_rc(pp, pp->cfg1_mod_base + pp->cfg1_size - 1,
 			  PCIE_ATU_LIMIT);
 	dw_pcie_writel_rc(pp, busdev, PCIE_ATU_LOWER_TARGET);
 	dw_pcie_writel_rc(pp, 0, PCIE_ATU_UPPER_TARGET);
@@ -614,10 +614,10 @@ static void dw_pcie_prog_viewport_mem_outbound(struct pcie_port *pp)
 	dw_pcie_writel_rc(pp, PCIE_ATU_TYPE_MEM, PCIE_ATU_CR1);
 	dw_pcie_writel_rc(pp, pp->mem_mod_base, PCIE_ATU_LOWER_BASE);
 	dw_pcie_writel_rc(pp, (pp->mem_mod_base >> 32), PCIE_ATU_UPPER_BASE);
-	dw_pcie_writel_rc(pp, pp->mem_mod_base + pp->config.mem_size - 1,
+	dw_pcie_writel_rc(pp, pp->mem_mod_base + pp->mem_size - 1,
 			  PCIE_ATU_LIMIT);
-	dw_pcie_writel_rc(pp, pp->config.mem_bus_addr, PCIE_ATU_LOWER_TARGET);
-	dw_pcie_writel_rc(pp, upper_32_bits(pp->config.mem_bus_addr),
+	dw_pcie_writel_rc(pp, pp->mem_bus_addr, PCIE_ATU_LOWER_TARGET);
+	dw_pcie_writel_rc(pp, upper_32_bits(pp->mem_bus_addr),
 			  PCIE_ATU_UPPER_TARGET);
 	dw_pcie_writel_rc(pp, PCIE_ATU_ENABLE, PCIE_ATU_CR2);
 }
@@ -630,10 +630,10 @@ static void dw_pcie_prog_viewport_io_outbound(struct pcie_port *pp)
 	dw_pcie_writel_rc(pp, PCIE_ATU_TYPE_IO, PCIE_ATU_CR1);
 	dw_pcie_writel_rc(pp, pp->io_mod_base, PCIE_ATU_LOWER_BASE);
 	dw_pcie_writel_rc(pp, (pp->io_mod_base >> 32), PCIE_ATU_UPPER_BASE);
-	dw_pcie_writel_rc(pp, pp->io_mod_base + pp->config.io_size - 1,
+	dw_pcie_writel_rc(pp, pp->io_mod_base + pp->io_size - 1,
 			  PCIE_ATU_LIMIT);
-	dw_pcie_writel_rc(pp, pp->config.io_bus_addr, PCIE_ATU_LOWER_TARGET);
-	dw_pcie_writel_rc(pp, upper_32_bits(pp->config.io_bus_addr),
+	dw_pcie_writel_rc(pp, pp->io_bus_addr, PCIE_ATU_LOWER_TARGET);
+	dw_pcie_writel_rc(pp, upper_32_bits(pp->io_bus_addr),
 			  PCIE_ATU_UPPER_TARGET);
 	dw_pcie_writel_rc(pp, PCIE_ATU_ENABLE, PCIE_ATU_CR2);
 }
@@ -768,15 +768,15 @@ static int dw_pcie_setup(int nr, struct pci_sys_data *sys)
 
 	pp = sys_to_pcie(sys);
 
-	if (global_io_offset < SZ_1M && pp->config.io_size > 0) {
-		sys->io_offset = global_io_offset - pp->config.io_bus_addr;
+	if (global_io_offset < SZ_1M && pp->io_size > 0) {
+		sys->io_offset = global_io_offset - pp->io_bus_addr;
 		pci_ioremap_io(global_io_offset, pp->io_base);
 		global_io_offset += SZ_64K;
 		pci_add_resource_offset(&sys->resources, &pp->io,
 					sys->io_offset);
 	}
 
-	sys->mem_offset = pp->mem.start - pp->config.mem_bus_addr;
+	sys->mem_offset = pp->mem.start - pp->mem_bus_addr;
 	pci_add_resource_offset(&sys->resources, &pp->mem, sys->mem_offset);
 	pci_add_resource(&sys->resources, &pp->busn);
 
@@ -833,7 +833,6 @@ static struct hw_pci dw_pci = {
 
 void dw_pcie_setup_rc(struct pcie_port *pp)
 {
-	struct pcie_port_info *config = &pp->config;
 	u32 val;
 	u32 membase;
 	u32 memlimit;
@@ -888,7 +887,7 @@ void dw_pcie_setup_rc(struct pcie_port *pp)
 
 	/* setup memory base, memory limit */
 	membase = ((u32)pp->mem_base & 0xfff00000) >> 16;
-	memlimit = (config->mem_size + (u32)pp->mem_base) & 0xfff00000;
+	memlimit = (pp->mem_size + (u32)pp->mem_base) & 0xfff00000;
 	val = memlimit | membase;
 	dw_pcie_writel_rc(pp, val, PCI_MEMORY_BASE);
 
diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h
index a476e60993cb..48f86702cc9c 100644
--- a/drivers/pci/host/pcie-designware.h
+++ b/drivers/pci/host/pcie-designware.h
@@ -14,15 +14,6 @@
 #ifndef _PCIE_DESIGNWARE_H
 #define _PCIE_DESIGNWARE_H
 
-struct pcie_port_info {
-	u32		cfg0_size;
-	u32		cfg1_size;
-	u32		io_size;
-	u32		mem_size;
-	phys_addr_t	io_bus_addr;
-	phys_addr_t	mem_bus_addr;
-};
-
 /*
  * Maximum number of MSI IRQs can be 256 per controller. But keep
  * it 32 as of now. Probably we will never need more than 32. If needed,
@@ -38,18 +29,23 @@ struct pcie_port {
 	u64			cfg0_base;
 	u64			cfg0_mod_base;
 	void __iomem		*va_cfg0_base;
+	u32			cfg0_size;
 	u64			cfg1_base;
 	u64			cfg1_mod_base;
 	void __iomem		*va_cfg1_base;
+	u32			cfg1_size;
 	u64			io_base;
 	u64			io_mod_base;
+	phys_addr_t		io_bus_addr;
+	u32			io_size;
 	u64			mem_base;
 	u64			mem_mod_base;
+	phys_addr_t		mem_bus_addr;
+	u32			mem_size;
 	struct resource		cfg;
 	struct resource		io;
 	struct resource		mem;
 	struct resource		busn;
-	struct pcie_port_info	config;
 	int			irq;
 	u32			lanes;
 	struct pcie_host_ops	*ops;