From: Joel Stanley <joel@jms.id.au>
To: Rob Herring <robh+dt@kernel.org>,
Greg KH <gregkh@linuxfoundation.org>, Jeremy Kerr <jk@ozlabs.org>
Cc: devicetree@vger.kernel.org,
Alistar Popple <alistair@popple.id.au>,
Eddie James <eajames@linux.ibm.com>,
linux-kernel@vger.kernel.org,
Steven Rostedt <rostedt@goodmis.org>,
Ingo Molnar <mingo@redhat.com>,
linux-arm-kernel@lists.infradead.org, linux-fsi@lists.ozlabs.org
Subject: [PATCH v2 01/11] fsi: Add fsi-master class
Date: Fri, 8 Nov 2019 15:49:35 +1030 [thread overview]
Message-ID: <20191108051945.7109-2-joel@jms.id.au> (raw)
In-Reply-To: <20191108051945.7109-1-joel@jms.id.au>
From: Jeremy Kerr <jk@ozlabs.org>
This change adds a device class for FSI masters, allowing access under
/sys/class/fsi-master/, and easier udev rules.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Joel Stanley <joel@jms.id.au>
---
drivers/fsi/fsi-core.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
index 1f76740f33b6..0861f6097b33 100644
--- a/drivers/fsi/fsi-core.c
+++ b/drivers/fsi/fsi-core.c
@@ -1241,6 +1241,10 @@ static ssize_t master_break_store(struct device *dev,
static DEVICE_ATTR(break, 0200, NULL, master_break_store);
+struct class fsi_master_class = {
+ .name = "fsi-master",
+};
+
int fsi_master_register(struct fsi_master *master)
{
int rc;
@@ -1249,6 +1253,7 @@ int fsi_master_register(struct fsi_master *master)
mutex_init(&master->scan_lock);
master->idx = ida_simple_get(&master_ida, 0, INT_MAX, GFP_KERNEL);
dev_set_name(&master->dev, "fsi%d", master->idx);
+ master->dev.class = &fsi_master_class;
rc = device_register(&master->dev);
if (rc) {
@@ -1350,8 +1355,15 @@ static int __init fsi_init(void)
rc = bus_register(&fsi_bus_type);
if (rc)
goto fail_bus;
+
+ rc = class_register(&fsi_master_class);
+ if (rc)
+ goto fail_class;
+
return 0;
+ fail_class:
+ bus_unregister(&fsi_bus_type);
fail_bus:
unregister_chrdev_region(fsi_base_dev, FSI_CHAR_MAX_DEVICES);
return rc;
@@ -1360,6 +1372,7 @@ postcore_initcall(fsi_init);
static void fsi_exit(void)
{
+ class_unregister(&fsi_master_class);
bus_unregister(&fsi_bus_type);
unregister_chrdev_region(fsi_base_dev, FSI_CHAR_MAX_DEVICES);
ida_destroy(&fsi_minor_ida);
--
2.24.0.rc1
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next prev parent reply other threads:[~2019-11-08 5:20 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-08 5:19 [PATCH v2 00/11] fsi: Patches for 5.5 Joel Stanley
2019-11-08 5:19 ` Joel Stanley [this message]
2019-11-08 9:17 ` [PATCH v2 01/11] fsi: Add fsi-master class Alistair Popple
2019-11-08 5:19 ` [PATCH v2 02/11] fsi: Move master attributes to " Joel Stanley
2019-11-08 9:18 ` Alistair Popple
2019-11-08 5:19 ` [PATCH v2 03/11] ABI: Update FSI path documentation Joel Stanley
2019-11-08 9:27 ` Alistair Popple
2019-11-08 5:19 ` [PATCH v2 04/11] trace: fsi: Print transfer size unsigned Joel Stanley
2019-11-08 9:21 ` Alistair Popple
2019-11-08 5:19 ` [PATCH v2 05/11] fsi: core: Fix small accesses and unaligned offsets via sysfs Joel Stanley
2019-11-08 5:19 ` [PATCH v2 06/11] fsi: fsi_master_class can be static Joel Stanley
2019-11-08 5:19 ` [PATCH v2 07/11] fsi: Move defines to common header Joel Stanley
2019-11-08 5:19 ` [PATCH v2 08/11] dt-bindings: fsi: Add description of FSI master Joel Stanley
2019-11-08 9:23 ` Alistair Popple
2019-11-08 10:28 ` Greg KH
2019-11-08 5:19 ` [PATCH v2 09/11] fsi: Add ast2600 master driver Joel Stanley
2019-11-08 9:29 ` Alistair Popple
2019-11-08 5:19 ` [PATCH v2 10/11] fsi: aspeed: Add trace points Joel Stanley
2019-11-08 5:19 ` [PATCH v2 11/11] fsi: aspeed: Fix OPB0 byte order register values Joel Stanley
2019-11-08 9:31 ` Alistair Popple
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