PCI: Remove unnecessary check of device_type == pci

PCI host drivers have already matched on compatible strings, so checking
device_type is redundant. Also, device_type is considered deprecated for
FDT though we've still been requiring it for PCI hosts as it is useful
for finding PCI buses.

Signed-off-by: Rob Herring <robh@kernel.org>
[lorenzo.pieralisi@arm.com: reformatted the log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Alan Douglas <adouglas@cadence.com>
Acked-by: Subrahmaya Lingappa <l.subrahmanya@mobiveil.co.in>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Alan Douglas <adouglas@cadence.com>
Cc: Subrahmanya Lingappa <l.subrahmanya@mobiveil.co.in>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: linux-pci@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org

5 files changed, 0 insertions, 38 deletions

diff --git a/drivers/pci/controller/pci-host-common.c b/drivers/pci/controller/pci-host-common.c
index d8f10451f273..c742881b5061 100644
--- a/drivers/pci/controller/pci-host-common.c
+++ b/drivers/pci/controller/pci-host-common.c
@@ -58,9 +58,7 @@ err_out:
 int pci_host_common_probe(struct platform_device *pdev,
                           struct pci_ecam_ops *ops)
 {
-        const char *type;
         struct device *dev = &pdev->dev;
-        struct device_node *np = dev->of_node;
         struct pci_host_bridge *bridge;
         struct pci_config_window *cfg;
         struct list_head resources;
@@ -70,12 +68,6 @@ int pci_host_common_probe(struct platform_device *pdev,
         if (!bridge)
                 return -ENOMEM;
 
-        type = of_get_property(np, "device_type", NULL);
-        if (!type || strcmp(type, "pci")) {
-                dev_err(dev, "invalid \"device_type\" %s\n", type);
-                return -EINVAL;
-        }
-
         of_pci_check_probe_only();
 
         /* Parse and map our Configuration Space windows */
diff --git a/drivers/pci/controller/pcie-cadence-host.c b/drivers/pci/controller/pcie-cadence-host.c
index ec394f6a19c8..97e251090b4f 100644
--- a/drivers/pci/controller/pcie-cadence-host.c
+++ b/drivers/pci/controller/pcie-cadence-host.c
@@ -235,7 +235,6 @@ static int cdns_pcie_host_init(struct device *dev,
 
 static int cdns_pcie_host_probe(struct platform_device *pdev)
 {
-        const char *type;
         struct device *dev = &pdev->dev;
         struct device_node *np = dev->of_node;
         struct pci_host_bridge *bridge;
@@ -268,12 +267,6 @@ static int cdns_pcie_host_probe(struct platform_device *pdev)
         rc->device_id = 0xffff;
         of_property_read_u16(np, "device-id", &rc->device_id);
 
-        type = of_get_property(np, "device_type", NULL);
-        if (!type || strcmp(type, "pci")) {
-                dev_err(dev, "invalid \"device_type\" %s\n", type);
-                return -EINVAL;
-        }
-
         res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "reg");
         pcie->reg_base = devm_ioremap_resource(dev, res);
         if (IS_ERR(pcie->reg_base)) {
diff --git a/drivers/pci/controller/pcie-mobiveil.c b/drivers/pci/controller/pcie-mobiveil.c
index a939e8d31735..77052a0712d0 100644
--- a/drivers/pci/controller/pcie-mobiveil.c
+++ b/drivers/pci/controller/pcie-mobiveil.c
@@ -301,13 +301,6 @@ static int mobiveil_pcie_parse_dt(struct mobiveil_pcie *pcie)
         struct platform_device *pdev = pcie->pdev;
         struct device_node *node = dev->of_node;
         struct resource *res;
-        const char *type;
-
-        type = of_get_property(node, "device_type", NULL);
-        if (!type || strcmp(type, "pci")) {
-                dev_err(dev, "invalid \"device_type\" %s\n", type);
-                return -EINVAL;
-        }
 
         /* map config resource */
         res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
diff --git a/drivers/pci/controller/pcie-xilinx-nwl.c b/drivers/pci/controller/pcie-xilinx-nwl.c
index fb32840ce8e6..81538d77f790 100644
--- a/drivers/pci/controller/pcie-xilinx-nwl.c
+++ b/drivers/pci/controller/pcie-xilinx-nwl.c
@@ -777,16 +777,7 @@ static int nwl_pcie_parse_dt(struct nwl_pcie *pcie,
                              struct platform_device *pdev)
 {
         struct device *dev = pcie->dev;
-        struct device_node *node = dev->of_node;
         struct resource *res;
-        const char *type;
-
-        /* Check for device type */
-        type = of_get_property(node, "device_type", NULL);
-        if (!type || strcmp(type, "pci")) {
-                dev_err(dev, "invalid \"device_type\" %s\n", type);
-                return -EINVAL;
-        }
 
         res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "breg");
         pcie->breg_base = devm_ioremap_resource(dev, res);
diff --git a/drivers/pci/controller/pcie-xilinx.c b/drivers/pci/controller/pcie-xilinx.c
index 7b1389d8e2a5..9bd1a35cd5d8 100644
--- a/drivers/pci/controller/pcie-xilinx.c
+++ b/drivers/pci/controller/pcie-xilinx.c
@@ -574,15 +574,8 @@ static int xilinx_pcie_parse_dt(struct xilinx_pcie_port *port)
         struct device *dev = port->dev;
         struct device_node *node = dev->of_node;
         struct resource regs;
-        const char *type;
         int err;
 
-        type = of_get_property(node, "device_type", NULL);
-        if (!type || strcmp(type, "pci")) {
-                dev_err(dev, "invalid \"device_type\" %s\n", type);
-                return -EINVAL;
-        }
-
         err = of_address_to_resource(node, 0, &regs);
         if (err) {
                 dev_err(dev, "missing \"reg\" property\n");