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authorJulian Wiedmann <jwi@linux.ibm.com>2021-06-14 09:14:27 +0200
committerVasily Gorbik <gor@linux.ibm.com>2021-06-18 16:41:22 +0200
commitf3827dc6b06e3b49f8a50daa899af82581daf090 (patch)
tree0b1822e6e3c7d4a0a40024ca9f06dedfbb8281e9 /drivers/tty/hvc
parent7b034d9c1b08b3d06ad712283c1115a7fe39e354 (diff)
downloadlinux-f3827dc6b06e3b49f8a50daa899af82581daf090.tar.bz2
s390/hvc_iucv: Remove power management support
Power management support was removed for s390 with commit 394216275c7d ("s390: remove broken hibernate / power management support"). Remove the hvc_iucv_driver, but keep the device struct around so that it can continue to provide the hvc_iucv_dev_attr_groups attributes. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/tty/hvc')
-rw-r--r--drivers/tty/hvc/hvc_iucv.c51
1 files changed, 0 insertions, 51 deletions
diff --git a/drivers/tty/hvc/hvc_iucv.c b/drivers/tty/hvc/hvc_iucv.c
index 2af1e5751bd6..297fa7b38b65 100644
--- a/drivers/tty/hvc/hvc_iucv.c
+++ b/drivers/tty/hvc/hvc_iucv.c
@@ -966,37 +966,6 @@ static void hvc_iucv_msg_complete(struct iucv_path *path,
destroy_tty_buffer_list(&list_remove);
}
-/**
- * hvc_iucv_pm_freeze() - Freeze PM callback
- * @dev: IUVC HVC terminal device
- *
- * Sever an established IUCV communication path and
- * trigger a hang-up of the underlying HVC terminal.
- */
-static int hvc_iucv_pm_freeze(struct device *dev)
-{
- struct hvc_iucv_private *priv = dev_get_drvdata(dev);
-
- local_bh_disable();
- hvc_iucv_hangup(priv);
- local_bh_enable();
-
- return 0;
-}
-
-/**
- * hvc_iucv_pm_restore_thaw() - Thaw and restore PM callback
- * @dev: IUVC HVC terminal device
- *
- * Wake up the HVC thread to trigger hang-up and respective
- * HVC back-end notifier invocations.
- */
-static int hvc_iucv_pm_restore_thaw(struct device *dev)
-{
- hvc_kick();
- return 0;
-}
-
static ssize_t hvc_iucv_dev_termid_show(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -1051,20 +1020,6 @@ static const struct hv_ops hvc_iucv_ops = {
.dtr_rts = hvc_iucv_dtr_rts,
};
-/* Suspend / resume device operations */
-static const struct dev_pm_ops hvc_iucv_pm_ops = {
- .freeze = hvc_iucv_pm_freeze,
- .thaw = hvc_iucv_pm_restore_thaw,
- .restore = hvc_iucv_pm_restore_thaw,
-};
-
-/* IUCV HVC device driver */
-static struct device_driver hvc_iucv_driver = {
- .name = KMSG_COMPONENT,
- .bus = &iucv_bus,
- .pm = &hvc_iucv_pm_ops,
-};
-
/* IUCV HVC device attributes */
static DEVICE_ATTR(termid, 0640, hvc_iucv_dev_termid_show, NULL);
static DEVICE_ATTR(state, 0640, hvc_iucv_dev_state_show, NULL);
@@ -1144,7 +1099,6 @@ static int __init hvc_iucv_alloc(int id, unsigned int is_console)
dev_set_drvdata(priv->dev, priv);
priv->dev->bus = &iucv_bus;
priv->dev->parent = iucv_root;
- priv->dev->driver = &hvc_iucv_driver;
priv->dev->groups = hvc_iucv_dev_attr_groups;
priv->dev->release = (void (*)(struct device *)) kfree;
rc = device_register(priv->dev);
@@ -1376,11 +1330,6 @@ static int __init hvc_iucv_init(void)
goto out_error;
}
- /* register IUCV HVC device driver */
- rc = driver_register(&hvc_iucv_driver);
- if (rc)
- goto out_error;
-
/* parse hvc_iucv_allow string and create z/VM user ID filter list */
if (hvc_iucv_filter_string) {
rc = hvc_iucv_setup_filter(hvc_iucv_filter_string);