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host: isp: 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 ISP 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: Iadf7b4104f622507e8b2e82fe054151e6318d747
Signed-off-by: Akihiro Mizusawa <amizusawa@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3321084
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Tested-by: FNU Raunak <fraunak@nvidia.com>
Reviewed-by: Frank Chen <frankc@nvidia.com>
Reviewed-by: FNU Raunak <fraunak@nvidia.com>
Reviewed-by: Chinniah Poosapadi <cpoosapadi@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
This commit is contained in:
Akihiro Mizusawa
2025-03-17 22:05:31 +00:00
committed by Jon Hunter
parent c84bc1ebe7
commit c555e49cf1
1 changed files with 33 additions and 1 deletions
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34
drivers/video/tegra/host/isp/isp5.c
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@@ -32,6 +32,7 @@
#include <linux/uaccess.h> #include <linux/uaccess.h>
#include <linux/version.h> #include <linux/version.h>
#include <linux/nvhost.h> #include <linux/nvhost.h>
#include <linux/reset.h>
#include <media/fusa-capture/capture-isp-channel.h> #include <media/fusa-capture/capture-isp-channel.h>
#include <media/tegra_camera_platform.h> #include <media/tegra_camera_platform.h>
#include <soc/tegra/camrtc-capture.h> #include <soc/tegra/camrtc-capture.h>
@@ -611,6 +612,37 @@ static const struct of_device_id tegra_isp5_of_match[] = {
}; };
MODULE_DEVICE_TABLE(of, tegra_isp5_of_match); MODULE_DEVICE_TABLE(of, tegra_isp5_of_match);
static int isp_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 isp_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 isp_pm_ops = {
SET_RUNTIME_PM_OPS(isp_runtime_suspend, isp_runtime_resume, NULL)
SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
pm_runtime_force_resume)
};
#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 isp5_remove_wrapper(struct platform_device *pdev) static void isp5_remove_wrapper(struct platform_device *pdev)
{ {
@@ -633,7 +665,7 @@ static struct platform_driver isp5_driver = {
.of_match_table = tegra_isp5_of_match, .of_match_table = tegra_isp5_of_match,
#endif #endif
#ifdef CONFIG_PM #ifdef CONFIG_PM
.pm = &nvhost_module_pm_ops, .pm = &isp_pm_ops,
#endif #endif
}, },
}; };