[PATCH 10/10] fpga: fpga-mgr: altera-pr-ip: Simplify registration

Moritz Fischer
2020-10-04T05:15:09Z

Simplify registration using new devm_fpga_mgr_register() API.
Remove the now obsolete altera_pr_unregister() function.

Signed-off-by: Moritz Fischer <mdf@kernel.org>
---

We should take another look at this, IIRC correctly the point of
splitting this up into a separate driver was to make it useable by a
different (pci?) driver later on.

It doesn't seem like this happened, and I think we should just make this
a platform driver?

---
drivers/fpga/altera-pr-ip-core-plat.c | 10 ----------
drivers/fpga/altera-pr-ip-core.c | 14 +-------------
include/linux/fpga/altera-pr-ip-core.h | 1 -
3 files changed, 1 insertion(+), 24 deletions(-)

diff --git a/drivers/fpga/altera-pr-ip-core-plat.c b/drivers/fpga/altera-pr-ip-core-plat.c
index 99b9cc0e70f0..b008a6b8d2d3 100644
--- a/drivers/fpga/altera-pr-ip-core-plat.c
+++ b/drivers/fpga/altera-pr-ip-core-plat.c
@@ -28,15 +28,6 @@ static int alt_pr_platform_probe(struct platform_device *pdev)
return alt_pr_register(dev, reg_base);
}

-static int alt_pr_platform_remove(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
-
- alt_pr_unregister(dev);
-
- return 0;
-}
-
static const struct of_device_id alt_pr_of_match[] = {
{ .compatible = "altr,a10-pr-ip", },
{},
@@ -46,7 +37,6 @@ MODULE_DEVICE_TABLE(of, alt_pr_of_match);

static struct platform_driver alt_pr_platform_driver = {
.probe = alt_pr_platform_probe,
- .remove = alt_pr_platform_remove,
.driver = {
.name = "alt_a10_pr_ip",
.of_match_table = alt_pr_of_match,
diff --git a/drivers/fpga/altera-pr-ip-core.c b/drivers/fpga/altera-pr-ip-core.c
index 2cf25fd5e897..dfdf21ed34c4 100644
--- a/drivers/fpga/altera-pr-ip-core.c
+++ b/drivers/fpga/altera-pr-ip-core.c
@@ -195,22 +195,10 @@ int alt_pr_register(struct device *dev, void __iomem *reg_base)
if (!mgr)
return -ENOMEM;

- dev_set_drvdata(dev, mgr);
-
- return fpga_mgr_register(mgr);
+ return devm_fpga_mgr_register(dev, mgr);
}
EXPORT_SYMBOL_GPL(alt_pr_register);

-void alt_pr_unregister(struct device *dev)
-{
- struct fpga_manager *mgr = dev_get_drvdata(dev);
-
- dev_dbg(dev, "%s\n", __func__);
-
- fpga_mgr_unregister(mgr);
-}
-EXPORT_SYMBOL_GPL(alt_pr_unregister);
-
MODULE_AUTHOR("Matthew Gerlach <matthew.gerlach@linux.intel.com>");
MODULE_DESCRIPTION("Altera Partial Reconfiguration IP Core");
MODULE_LICENSE("GPL v2");
diff --git a/include/linux/fpga/altera-pr-ip-core.h b/include/linux/fpga/altera-pr-ip-core.h
index 0b08ac20ab16..a6b4c07858cc 100644
--- a/include/linux/fpga/altera-pr-ip-core.h
+++ b/include/linux/fpga/altera-pr-ip-core.h
@@ -13,6 +13,5 @@
#include <linux/io.h>

int alt_pr_register(struct device *dev, void __iomem *reg_base);
-void alt_pr_unregister(struct device *dev);

#endif /* _ALT_PR_IP_CORE_H */
--
2.28.0