linux-stable/drivers/gpu/host1x/context_bus.c
Robin Murphy f99e689181 gpu: host1x: Register context bus unconditionally
Conditional registration is a problem for other subsystems which may
unwittingly try to interact with host1x_context_device_bus_type in an
uninitialised state on non-Tegra platforms. A look under /sys/bus on a
typical system already reveals plenty of entries from enabled but
otherwise irrelevant configs, so lets keep things simple and register
our context bus unconditionally too.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2022-07-08 16:31:24 +02:00

26 lines
547 B
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2021, NVIDIA Corporation.
*/
#include <linux/device.h>
#include <linux/of.h>
struct bus_type host1x_context_device_bus_type = {
.name = "host1x-context",
};
EXPORT_SYMBOL_GPL(host1x_context_device_bus_type);
static int __init host1x_context_device_bus_init(void)
{
int err;
err = bus_register(&host1x_context_device_bus_type);
if (err < 0) {
pr_err("bus type registration failed: %d\n", err);
return err;
}
return 0;
}
postcore_initcall(host1x_context_device_bus_init);