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drm/tegra: Remove PM from virtual engine

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Remove power management functionality from virtual engine driver
as it's no longer needed. This includes suspend/resume operations
and PM ops structure. The driver now relies on system's default
power management behavior.

Jira HOSTX-5933

Change-Id: I092bfa8e2a01345e149ff2c04ed526a0aa7a0944
Signed-off-by: Vamsee Vardhan Thummala <vthummala@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3322473
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Vamsee Vardhan Thummala
2025-03-17 16:24:31 +00:00
committed by Jon Hunter
parent 083a40b0d3
commit 15f9feb564
1 changed files with 0 additions and 31 deletions
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31
drivers/gpu/drm/tegra/virt.c
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@@ -266,28 +266,6 @@ static int virt_engine_connect(struct virt_engine *virt, u32 module_id)
return msg.connect.connection_id;
}
static int virt_engine_suspend(struct device *dev)
{
struct virt_engine *virt = dev_get_drvdata(dev);
struct tegra_vhost_cmd_msg msg = { 0 };
msg.cmd = TEGRA_VHOST_CMD_SUSPEND;
msg.connection_id = virt->connection_id;
return virt_engine_transfer(&msg, sizeof(msg));
}
static int virt_engine_resume(struct device *dev)
{
struct virt_engine *virt = dev_get_drvdata(dev);
struct tegra_vhost_cmd_msg msg = { 0 };
msg.cmd = TEGRA_VHOST_CMD_RESUME;
msg.connection_id = virt->connection_id;
return virt_engine_transfer(&msg, sizeof(msg));
}
#ifdef CONFIG_DEBUG_FS
static int mrq_debug_open(struct tegra_bpmp *bpmp, const char *name,
u32 *fd, u32 *len, bool write)
@@ -880,14 +858,6 @@ static int virt_engine_remove(struct platform_device *pdev)
return 0;
}
static const struct dev_pm_ops virt_engine_pm_ops = {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 17, 0)
SYSTEM_SLEEP_PM_OPS(virt_engine_suspend, virt_engine_resume)
#else
SET_SYSTEM_SLEEP_PM_OPS(virt_engine_suspend, virt_engine_resume)
#endif
};
#if defined(NV_PLATFORM_DRIVER_STRUCT_REMOVE_RETURNS_VOID) /* Linux v6.11 */
static void virt_engine_remove_wrapper(struct platform_device *pdev)
{
@@ -904,7 +874,6 @@ struct platform_driver tegra_virt_engine_driver = {
.driver = {
.name = "tegra-host1x-virtual-engine",
.of_match_table = tegra_virt_engine_of_match,
.pm = &virt_engine_pm_ops,
},
.probe = virt_engine_probe,
.remove = virt_engine_remove_wrapper,