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host: nvcsi: 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 NVCSI 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: I22a75c9f58ec0980aa97997b674c26a9bb62d47b
Signed-off-by: Akihiro Mizusawa <amizusawa@nvidia.com>
Signed-off-by: Mainak Sen <msen@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3321086
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Frank Chen <frankc@nvidia.com>
Reviewed-by: Chinniah Poosapadi <cpoosapadi@nvidia.com>
Reviewed-by: FNU Raunak <fraunak@nvidia.com>
Tested-by: FNU Raunak <fraunak@nvidia.com>
This commit is contained in:
Akihiro Mizusawa
2025-03-17 22:08:53 +00:00
committed by Jon Hunter
parent c2dd36f33c
commit dd5c4b741f
1 changed files with 30 additions and 1 deletions
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31
drivers/video/tegra/host/nvcsi/nvcsi-t194.c
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@@ -309,6 +309,35 @@ static int __exit t194_nvcsi_remove(struct platform_device *dev)
return 0; return 0;
} }
static int t194_nvcsi_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 t194_nvcsi_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 t194_nvcsi_pm_ops = {
SET_RUNTIME_PM_OPS(t194_nvcsi_runtime_suspend, t194_nvcsi_runtime_resume, NULL)
};
#if defined(NV_PLATFORM_DRIVER_STRUCT_REMOVE_RETURNS_VOID) /* Linux v6.11 */ #if defined(NV_PLATFORM_DRIVER_STRUCT_REMOVE_RETURNS_VOID) /* Linux v6.11 */
static void t194_nvcsi_remove_wrapper(struct platform_device *pdev) static void t194_nvcsi_remove_wrapper(struct platform_device *pdev)
{ {
@@ -331,7 +360,7 @@ static struct platform_driver t194_nvcsi_driver = {
.of_match_table = tegra194_nvcsi_of_match, .of_match_table = tegra194_nvcsi_of_match,
#endif #endif
#ifdef CONFIG_PM #ifdef CONFIG_PM
.pm = &nvhost_module_pm_ops, .pm = &t194_nvcsi_pm_ops,
#endif #endif
}, },
}; };