diff mbox series

[1/4] drm/tegra: gr3d: Convert into dev_pm_domain_attach|detach_list()

Message ID 20240723144610.564273-2-ulf.hansson@linaro.org (mailing list archive)
State New
Delegated to: viresh kumar
Headers show
Series OPP: Re-work code to drop _opp_attach|detach_genpd() | expand

Commit Message

Ulf Hansson July 23, 2024, 2:46 p.m. UTC
Rather than hooking up the PM domains through devm_pm_opp_attach_genpd()
and manage the device-link, let's avoid the boilerplate-code by converting
into dev_pm_domain_attach|detach_list.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
 drivers/gpu/drm/tegra/gr3d.c | 46 ++++++++++--------------------------
 1 file changed, 13 insertions(+), 33 deletions(-)

Comments

Thierry Reding Aug. 28, 2024, 3:06 p.m. UTC | #1
On Tue, Jul 23, 2024 at 04:46:07PM GMT, Ulf Hansson wrote:
> Rather than hooking up the PM domains through devm_pm_opp_attach_genpd()
> and manage the device-link, let's avoid the boilerplate-code by converting
> into dev_pm_domain_attach|detach_list.
> 
> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
> ---
>  drivers/gpu/drm/tegra/gr3d.c | 46 ++++++++++--------------------------
>  1 file changed, 13 insertions(+), 33 deletions(-)

Applied to drm-misc-next, thanks.

Thierry
Ulf Hansson Aug. 28, 2024, 3:26 p.m. UTC | #2
On Wed, 28 Aug 2024 at 17:06, Thierry Reding <thierry.reding@gmail.com> wrote:
>
> On Tue, Jul 23, 2024 at 04:46:07PM GMT, Ulf Hansson wrote:
> > Rather than hooking up the PM domains through devm_pm_opp_attach_genpd()
> > and manage the device-link, let's avoid the boilerplate-code by converting
> > into dev_pm_domain_attach|detach_list.
> >
> > Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
> > ---
> >  drivers/gpu/drm/tegra/gr3d.c | 46 ++++++++++--------------------------
> >  1 file changed, 13 insertions(+), 33 deletions(-)
>
> Applied to drm-misc-next, thanks.

Please drop this from your tree. I already have a patch [1] that you
have acked, which is a newer version of $subject patch.

Sorry if this was unclear.

Kind regards
Uffe

[1]
https://lore.kernel.org/all/CAPDyKFqZ9XXi5_-essaGbdWBDLX8uR5nO9vDJCExBGV+10KqZA@mail.gmail.com/
Thierry Reding Aug. 29, 2024, 8:59 a.m. UTC | #3
On Wed, Aug 28, 2024 at 05:26:40PM GMT, Ulf Hansson wrote:
> On Wed, 28 Aug 2024 at 17:06, Thierry Reding <thierry.reding@gmail.com> wrote:
> >
> > On Tue, Jul 23, 2024 at 04:46:07PM GMT, Ulf Hansson wrote:
> > > Rather than hooking up the PM domains through devm_pm_opp_attach_genpd()
> > > and manage the device-link, let's avoid the boilerplate-code by converting
> > > into dev_pm_domain_attach|detach_list.
> > >
> > > Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
> > > ---
> > >  drivers/gpu/drm/tegra/gr3d.c | 46 ++++++++++--------------------------
> > >  1 file changed, 13 insertions(+), 33 deletions(-)
> >
> > Applied to drm-misc-next, thanks.
> 
> Please drop this from your tree. I already have a patch [1] that you
> have acked, which is a newer version of $subject patch.
> 
> Sorry if this was unclear.

Ugh... indeed. Sorry, I was confusing these. Unfortunately I had pushed
to drm-misc-next already, so I can't drop, but I can revert.

Thierry
diff mbox series

Patch

diff --git a/drivers/gpu/drm/tegra/gr3d.c b/drivers/gpu/drm/tegra/gr3d.c
index 00c8564520e7..4de1ea0fc7c0 100644
--- a/drivers/gpu/drm/tegra/gr3d.c
+++ b/drivers/gpu/drm/tegra/gr3d.c
@@ -46,6 +46,7 @@  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);
 };
@@ -369,18 +370,12 @@  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)
 {
-	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;
+	struct dev_pm_domain_attach_data pd_data = {
+		.pd_names = (const char *[]) { "3d0", "3d1" },
+		.num_pd_names = 2,
+	};
 	int err;
 
 	err = of_count_phandle_with_args(dev->of_node, "power-domains",
@@ -414,29 +409,10 @@  static int gr3d_init_power(struct device *dev, struct gr3d *gr3d)
 	if (dev->pm_domain)
 		return 0;
 
-	err = devm_pm_opp_attach_genpd(dev, opp_genpd_names, &opp_virt_devs);
-	if (err)
+	err = dev_pm_domain_attach_list(dev, &pd_data, &gr3d->pd_list);
+	if (err < 0)
 		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;
 }
 
@@ -527,13 +503,13 @@  static int gr3d_probe(struct platform_device *pdev)
 
 	err = devm_tegra_core_dev_init_opp_table_common(&pdev->dev);
 	if (err)
-		return err;
+		goto err;
 
 	err = host1x_client_register(&gr3d->client.base);
 	if (err < 0) {
 		dev_err(&pdev->dev, "failed to register host1x client: %d\n",
 			err);
-		return err;
+		goto err;
 	}
 
 	/* initialize address register map */
@@ -541,6 +517,9 @@  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)
@@ -549,6 +528,7 @@  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)