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host: capture-support: Deprecate nvhost_module_pm_ops

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Deprecate the usage of nvhost_module_pm_ops as part of the wider
nvhost API deprecation while maintaining equivalent functionality.

The capture-support driver does not register prepare_poweroff,
poweron_reset, finalize_poweron callbacks nor set the clock gating
regs with nvhost, so the runtime operations will only call clk APIs.

Bug 4921620

Change-Id: I438621258378bb6e81fc7a82e3334dcbfa180dc9
Signed-off-by: Akihiro Mizusawa <amizusawa@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3321085
Reviewed-by: Chinniah Poosapadi <cpoosapadi@nvidia.com>
Reviewed-by: Frank Chen <frankc@nvidia.com>
Tested-by: FNU Raunak <fraunak@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: FNU Raunak <fraunak@nvidia.com>
This commit is contained in:
Akihiro Mizusawa
2025-03-17 22:07:24 +00:00
committed by Jon Hunter
parent c555e49cf1
commit c2dd36f33c
1 changed files with 32 additions and 1 deletions
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33
drivers/video/tegra/host/capture/capture-support.c
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@@ -23,6 +23,8 @@
#include <soc/tegra/fuse.h>
#include <linux/nvhost.h>
#include <uapi/linux/nvhost_ioctl.h>
#include <linux/reset.h>
#include <linux/clk.h>
#ifdef CONFIG_TEGRA_HWPM_CAM
#include <uapi/linux/tegra-soc-hwpm-uapi.h>
@@ -256,6 +258,35 @@ static const struct of_device_id capture_support_match[] = {
};
MODULE_DEVICE_TABLE(of, capture_support_match);
static int capture_support_runtime_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct nvhost_device_data *info = platform_get_drvdata(pdev);
clk_bulk_disable_unprepare(info->num_clks, info->clks);
return 0;
}
static int capture_support_runtime_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct nvhost_device_data *pdata = platform_get_drvdata(pdev);
int err;
err = clk_bulk_prepare_enable(pdata->num_clks, pdata->clks);
if (err) {
dev_warn(dev, "failed to enable clocks: %d\n", err);
return err;
}
return 0;
}
const struct dev_pm_ops capture_support_pm_ops = {
SET_RUNTIME_PM_OPS(capture_support_runtime_suspend, capture_support_runtime_resume, NULL)
};
#if defined(NV_PLATFORM_DRIVER_STRUCT_REMOVE_RETURNS_VOID) /* Linux v6.11 */
static void capture_support_remove_wrapper(struct platform_device *pdev)
{
@@ -275,7 +306,7 @@ static struct platform_driver capture_support_driver = {
/* Only suitable name for dummy falcon driver */
.name = "scare-pigeon",
.of_match_table = capture_support_match,
.pm = &nvhost_module_pm_ops,
.pm = &capture_support_pm_ops,
},
};