From f3827dc6b06e3b49f8a50daa899af82581daf090 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Mon, 14 Jun 2021 09:14:27 +0200 Subject: 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 Acked-by: Peter Oberparleiter Signed-off-by: Vasily Gorbik --- drivers/tty/hvc/hvc_iucv.c | 51 ---------------------------------------------- 1 file changed, 51 deletions(-) (limited to 'drivers/tty/hvc') 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); -- cgit v1.2.3-58-ga151