fpga: manager: change api, don't use drvdata
Change fpga_mgr_register to not set or use drvdata. This supports
the case where a PCIe device has more than one manager.
Add fpga_mgr_create/free functions. Change fpga_mgr_register and
fpga_mgr_unregister functions to take the mgr struct as their only
parameter.
struct fpga_manager *fpga_mgr_create(struct device *dev,
const char *name,
const struct fpga_manager_ops *mops,
void *priv);
void fpga_mgr_free(struct fpga_manager *mgr);
int fpga_mgr_register(struct fpga_manager *mgr);
void fpga_mgr_unregister(struct fpga_manager *mgr);
Update the drivers that call fpga_mgr_register with the new API.
Signed-off-by: Alan Tull <atull@kernel.org>
[Moritz: Fixup whitespace issue]
Reported-by: Jiuyue Ma <majiuyue@huawei.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/fpga/zynq-fpga.c b/drivers/fpga/zynq-fpga.c
index 70b15b3..3110e00 100644
--- a/drivers/fpga/zynq-fpga.c
+++ b/drivers/fpga/zynq-fpga.c
@@ -558,6 +558,7 @@ static int zynq_fpga_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct zynq_fpga_priv *priv;
+ struct fpga_manager *mgr;
struct resource *res;
int err;
@@ -613,10 +614,17 @@ static int zynq_fpga_probe(struct platform_device *pdev)
clk_disable(priv->clk);
- err = fpga_mgr_register(dev, "Xilinx Zynq FPGA Manager",
- &zynq_fpga_ops, priv);
+ mgr = fpga_mgr_create(dev, "Xilinx Zynq FPGA Manager",
+ &zynq_fpga_ops, priv);
+ if (!mgr)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, mgr);
+
+ err = fpga_mgr_register(mgr);
if (err) {
dev_err(dev, "unable to register FPGA manager\n");
+ fpga_mgr_free(mgr);
clk_unprepare(priv->clk);
return err;
}
@@ -632,7 +640,7 @@ static int zynq_fpga_remove(struct platform_device *pdev)
mgr = platform_get_drvdata(pdev);
priv = mgr->priv;
- fpga_mgr_unregister(&pdev->dev);
+ fpga_mgr_unregister(mgr);
clk_unprepare(priv->clk);