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path: root/drivers/gpu/drm/tegra/gr3d.c
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Diffstat (limited to 'drivers/gpu/drm/tegra/gr3d.c')
-rw-r--r--drivers/gpu/drm/tegra/gr3d.c46
1 files changed, 33 insertions, 13 deletions
diff --git a/drivers/gpu/drm/tegra/gr3d.c b/drivers/gpu/drm/tegra/gr3d.c
index 4de1ea0fc7c0..00c8564520e7 100644
--- a/drivers/gpu/drm/tegra/gr3d.c
+++ b/drivers/gpu/drm/tegra/gr3d.c
@@ -46,7 +46,6 @@ struct gr3d {
unsigned int nclocks;
struct reset_control_bulk_data resets[RST_GR3D_MAX];
unsigned int nresets;
- struct dev_pm_domain_list *pd_list;
DECLARE_BITMAP(addr_regs, GR3D_NUM_REGS);
};
@@ -370,12 +369,18 @@ static int gr3d_power_up_legacy_domain(struct device *dev, const char *name,
return 0;
}
+static void gr3d_del_link(void *link)
+{
+ device_link_del(link);
+}
+
static int gr3d_init_power(struct device *dev, struct gr3d *gr3d)
{
- struct dev_pm_domain_attach_data pd_data = {
- .pd_names = (const char *[]) { "3d0", "3d1" },
- .num_pd_names = 2,
- };
+ static const char * const opp_genpd_names[] = { "3d0", "3d1", NULL };
+ const u32 link_flags = DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME;
+ struct device **opp_virt_devs, *pd_dev;
+ struct device_link *link;
+ unsigned int i;
int err;
err = of_count_phandle_with_args(dev->of_node, "power-domains",
@@ -409,10 +414,29 @@ static int gr3d_init_power(struct device *dev, struct gr3d *gr3d)
if (dev->pm_domain)
return 0;
- err = dev_pm_domain_attach_list(dev, &pd_data, &gr3d->pd_list);
- if (err < 0)
+ err = devm_pm_opp_attach_genpd(dev, opp_genpd_names, &opp_virt_devs);
+ if (err)
return err;
+ for (i = 0; opp_genpd_names[i]; i++) {
+ pd_dev = opp_virt_devs[i];
+ if (!pd_dev) {
+ dev_err(dev, "failed to get %s power domain\n",
+ opp_genpd_names[i]);
+ return -EINVAL;
+ }
+
+ link = device_link_add(dev, pd_dev, link_flags);
+ if (!link) {
+ dev_err(dev, "failed to link to %s\n", dev_name(pd_dev));
+ return -EINVAL;
+ }
+
+ err = devm_add_action_or_reset(dev, gr3d_del_link, link);
+ if (err)
+ return err;
+ }
+
return 0;
}
@@ -503,13 +527,13 @@ static int gr3d_probe(struct platform_device *pdev)
err = devm_tegra_core_dev_init_opp_table_common(&pdev->dev);
if (err)
- goto err;
+ return err;
err = host1x_client_register(&gr3d->client.base);
if (err < 0) {
dev_err(&pdev->dev, "failed to register host1x client: %d\n",
err);
- goto err;
+ return err;
}
/* initialize address register map */
@@ -517,9 +541,6 @@ static int gr3d_probe(struct platform_device *pdev)
set_bit(gr3d_addr_regs[i], gr3d->addr_regs);
return 0;
-err:
- dev_pm_domain_detach_list(gr3d->pd_list);
- return err;
}
static void gr3d_remove(struct platform_device *pdev)
@@ -528,7 +549,6 @@ static void gr3d_remove(struct platform_device *pdev)
pm_runtime_disable(&pdev->dev);
host1x_client_unregister(&gr3d->client.base);
- dev_pm_domain_detach_list(gr3d->pd_list);
}
static int __maybe_unused gr3d_runtime_suspend(struct device *dev)