PCI: Use of_pci_dma_range_parser_init() to reduce duplication

Use the new of_pci_dma_range_parser_init() to reduce code duplication.

Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

5 files changed, 5 insertions, 95 deletions

diff --git a/drivers/pci/host/pci-ftpci100.c b/drivers/pci/host/pci-ftpci100.c
index 96028f01bc90..06d9687e038a 100644
--- a/drivers/pci/host/pci-ftpci100.c
+++ b/drivers/pci/host/pci-ftpci100.c
@@ -370,24 +370,6 @@ static int faraday_pci_setup_cascaded_irq(struct faraday_pci *p)
         return 0;
 }
 
-static int pci_dma_range_parser_init(struct of_pci_range_parser *parser,
-                                     struct device_node *node)
-{
-        const int na = 3, ns = 2;
-        int rlen;
-
-        parser->node = node;
-        parser->pna = of_n_addr_cells(node);
-        parser->np = parser->pna + na + ns;
-
-        parser->range = of_get_property(node, "dma-ranges", &rlen);
-        if (!parser->range)
-                return -ENOENT;
-        parser->end = parser->range + rlen / sizeof(__be32);
-
-        return 0;
-}
-
 static int faraday_pci_parse_map_dma_ranges(struct faraday_pci *p,
                                             struct device_node *np)
 {
@@ -402,7 +384,7 @@ static int faraday_pci_parse_map_dma_ranges(struct faraday_pci *p,
         int i = 0;
         u32 val;
 
-        if (pci_dma_range_parser_init(&parser, np)) {
+        if (of_pci_dma_range_parser_init(&parser, np)) {
                 dev_err(dev, "missing dma-ranges property\n");
                 return -EINVAL;
         }
diff --git a/drivers/pci/host/pci-rcar-gen2.c b/drivers/pci/host/pci-rcar-gen2.c
index 6f879685fedd..e46de69f0380 100644
--- a/drivers/pci/host/pci-rcar-gen2.c
+++ b/drivers/pci/host/pci-rcar-gen2.c
@@ -293,24 +293,6 @@ static struct pci_ops rcar_pci_ops = {
         .write  = pci_generic_config_write,
 };
 
-static int pci_dma_range_parser_init(struct of_pci_range_parser *parser,
-                                     struct device_node *node)
-{
-        const int na = 3, ns = 2;
-        int rlen;
-
-        parser->node = node;
-        parser->pna = of_n_addr_cells(node);
-        parser->np = parser->pna + na + ns;
-
-        parser->range = of_get_property(node, "dma-ranges", &rlen);
-        if (!parser->range)
-                return -ENOENT;
-
-        parser->end = parser->range + rlen / sizeof(__be32);
-        return 0;
-}
-
 static int rcar_pci_parse_map_dma_ranges(struct rcar_pci_priv *pci,
                                          struct device_node *np)
 {
@@ -320,7 +302,7 @@ static int rcar_pci_parse_map_dma_ranges(struct rcar_pci_priv *pci,
         int index = 0;
 
         /* Failure to parse is ok as we fall back to defaults */
-        if (pci_dma_range_parser_init(&parser, np))
+        if (of_pci_dma_range_parser_init(&parser, np))
                 return 0;
 
         /* Get the dma-ranges from DT */
diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c
index 087645116ecb..8fc45d95edab 100644
--- a/drivers/pci/host/pci-xgene.c
+++ b/drivers/pci/host/pci-xgene.c
@@ -542,24 +542,6 @@ static void xgene_pcie_setup_ib_reg(struct xgene_pcie_port *port,
         xgene_pcie_setup_pims(port, pim_reg, pci_addr, ~(size - 1));
 }
 
-static int pci_dma_range_parser_init(struct of_pci_range_parser *parser,
-                                     struct device_node *node)
-{
-        const int na = 3, ns = 2;
-        int rlen;
-
-        parser->node = node;
-        parser->pna = of_n_addr_cells(node);
-        parser->np = parser->pna + na + ns;
-
-        parser->range = of_get_property(node, "dma-ranges", &rlen);
-        if (!parser->range)
-                return -ENOENT;
-        parser->end = parser->range + rlen / sizeof(__be32);
-
-        return 0;
-}
-
 static int xgene_pcie_parse_map_dma_ranges(struct xgene_pcie_port *port)
 {
         struct device_node *np = port->node;
@@ -568,7 +550,7 @@ static int xgene_pcie_parse_map_dma_ranges(struct xgene_pcie_port *port)
         struct device *dev = port->dev;
         u8 ib_reg_mask = 0;
 
-        if (pci_dma_range_parser_init(&parser, np)) {
+        if (of_pci_dma_range_parser_init(&parser, np)) {
                 dev_err(dev, "missing dma-ranges property\n");
                 return -EINVAL;
         }
diff --git a/drivers/pci/host/pcie-iproc.c b/drivers/pci/host/pcie-iproc.c
index 3a8b9d20ee57..935909bbe5c4 100644
--- a/drivers/pci/host/pcie-iproc.c
+++ b/drivers/pci/host/pcie-iproc.c
@@ -1097,24 +1097,6 @@ err_ib:
         return ret;
 }
 
-static int pci_dma_range_parser_init(struct of_pci_range_parser *parser,
-                                     struct device_node *node)
-{
-        const int na = 3, ns = 2;
-        int rlen;
-
-        parser->node = node;
-        parser->pna = of_n_addr_cells(node);
-        parser->np = parser->pna + na + ns;
-
-        parser->range = of_get_property(node, "dma-ranges", &rlen);
-        if (!parser->range)
-                return -ENOENT;
-
-        parser->end = parser->range + rlen / sizeof(__be32);
-        return 0;
-}
-
 static int iproc_pcie_map_dma_ranges(struct iproc_pcie *pcie)
 {
         struct of_pci_range range;
@@ -1122,7 +1104,7 @@ static int iproc_pcie_map_dma_ranges(struct iproc_pcie *pcie)
         int ret;
 
         /* Get the dma-ranges from DT */
-        ret = pci_dma_range_parser_init(&parser, pcie->dev->of_node);
+        ret = of_pci_dma_range_parser_init(&parser, pcie->dev->of_node);
         if (ret)
                 return ret;
 
diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index 4e0b25d09b0c..12796eccb2be 100644
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -1027,24 +1027,6 @@ static int rcar_pcie_inbound_ranges(struct rcar_pcie *pcie,
         return 0;
 }
 
-static int pci_dma_range_parser_init(struct of_pci_range_parser *parser,
-                                     struct device_node *node)
-{
-        const int na = 3, ns = 2;
-        int rlen;
-
-        parser->node = node;
-        parser->pna = of_n_addr_cells(node);
-        parser->np = parser->pna + na + ns;
-
-        parser->range = of_get_property(node, "dma-ranges", &rlen);
-        if (!parser->range)
-                return -ENOENT;
-
-        parser->end = parser->range + rlen / sizeof(__be32);
-        return 0;
-}
-
 static int rcar_pcie_parse_map_dma_ranges(struct rcar_pcie *pcie,
                                           struct device_node *np)
 {
@@ -1053,7 +1035,7 @@ static int rcar_pcie_parse_map_dma_ranges(struct rcar_pcie *pcie,
         int index = 0;
         int err;
 
-        if (pci_dma_range_parser_init(&parser, np))
+        if (of_pci_dma_range_parser_init(&parser, np))
                 return -EINVAL;
 
         /* Get the dma-ranges from DT */