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authorAlan Tull <atull@kernel.org>2018-05-16 18:49:56 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-25 18:23:55 +0200
commit371cd1b1fdabb33603340559049e46dfeae45b1e (patch)
tree0d1f187b9e48378b7f0b2b83b31f322f7435da17 /drivers/fpga/altera-freeze-bridge.c
parent7085e2a94f7df5f419e3cfb2fe809ce6564e9629 (diff)
fpga: bridge: change api, don't use drvdata
Change fpga_bridge_register to not set drvdata. This is to support the case where a PCIe device can have more than one bridge. Add API functions to create/free the fpga bridge struct. Change fpga_bridge_register/unregister to take FPGA bridge struct as the only parameter. struct fpga_bridge *fpga_bridge_create(struct device *dev, const char *name, const struct fpga_bridge_ops *br_ops, void *priv); void fpga_bridge_free(struct fpga_bridge *br); int fpga_bridge_register(struct fpga_bridge *br); void fpga_bridge_unregister(struct fpga_bridge *br); Update the drivers that call fpga_bridge_register with the new API. Signed-off-by: Alan Tull <atull@kernel.org> Reported-by: Jiuyue Ma <majiuyue@huawei.com> Signed-off-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/fpga/altera-freeze-bridge.c')
-rw-r--r--drivers/fpga/altera-freeze-bridge.c22
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/fpga/altera-freeze-bridge.c b/drivers/fpga/altera-freeze-bridge.c
index 6159cfcf78a2..fa4b693cf4be 100644
--- a/drivers/fpga/altera-freeze-bridge.c
+++ b/drivers/fpga/altera-freeze-bridge.c
@@ -221,8 +221,10 @@ static int altera_freeze_br_probe(struct platform_device *pdev)
struct device_node *np = pdev->dev.of_node;
void __iomem *base_addr;
struct altera_freeze_br_data *priv;
+ struct fpga_bridge *br;
struct resource *res;
u32 status, revision;
+ int ret;
if (!np)
return -ENODEV;
@@ -254,13 +256,27 @@ static int altera_freeze_br_probe(struct platform_device *pdev)
priv->base_addr = base_addr;
- return fpga_bridge_register(dev, FREEZE_BRIDGE_NAME,
- &altera_freeze_br_br_ops, priv);
+ br = fpga_bridge_create(dev, FREEZE_BRIDGE_NAME,
+ &altera_freeze_br_br_ops, priv);
+ if (!br)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, br);
+
+ ret = fpga_bridge_register(br);
+ if (ret) {
+ fpga_bridge_free(br);
+ return ret;
+ }
+
+ return 0;
}
static int altera_freeze_br_remove(struct platform_device *pdev)
{
- fpga_bridge_unregister(&pdev->dev);
+ struct fpga_bridge *br = platform_get_drvdata(pdev);
+
+ fpga_bridge_unregister(br);
return 0;
}