2020-03-24 00:45:56

by Marek Behún

[permalink] [raw]
Subject: [PATCH pinctrl REGRESSION] Revert "pinctrl: mvebu: armada-37xx: use use platform api"

This reverts commit 06e26b75f5e613b400116fdb7ff6206a681ab271.

This commit caused a regression on Armada 37xx. The pinctrl driver says
armada-37xx-pinctrl d0013800.pinctrl: invalid or no IRQ
armada-37xx-pinctrl d0018800.pinctrl: invalid or no IRQ
and afterwards other drivers cannot use GPIOs by this driver as IRQs.

Fixes: 06e26b75f5e6 ("pinctrl: mvebu: armada-37xx: use use platform...")
Signed-off-by: Marek Behún <[email protected]>
Cc: Peng Fan <[email protected]>
---
drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index 32f12a388b3c..5f125bd6279d 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -15,6 +15,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
+#include <linux/of_irq.h>
#include <linux/pinctrl/pinconf-generic.h>
#include <linux/pinctrl/pinconf.h>
#include <linux/pinctrl/pinctrl.h>
@@ -741,14 +742,7 @@ static int armada_37xx_irqchip_register(struct platform_device *pdev,
return ret;
}

- nr_irq_parent = platform_irq_count(pdev);
- if (nr_irq_parent < 0) {
- if (nr_irq_parent != -EPROBE_DEFER)
- dev_err(dev, "Couldn't determine irq count: %pe\n",
- ERR_PTR(nr_irq_parent));
- return nr_irq_parent;
- }
-
+ nr_irq_parent = of_irq_count(np);
spin_lock_init(&info->irq_lock);

if (!nr_irq_parent) {
@@ -785,7 +779,7 @@ static int armada_37xx_irqchip_register(struct platform_device *pdev,
if (!girq->parents)
return -ENOMEM;
for (i = 0; i < nr_irq_parent; i++) {
- int irq = platform_get_irq(pdev, i);
+ int irq = irq_of_parse_and_map(np, i);

if (irq < 0)
continue;
--
2.24.1


2020-03-24 12:20:55

by Andrew Lunn

[permalink] [raw]
Subject: Re: [PATCH pinctrl REGRESSION] Revert "pinctrl: mvebu: armada-37xx: use use platform api"

On Tue, Mar 24, 2020 at 01:44:13AM +0100, Marek Beh?n wrote:
> This reverts commit 06e26b75f5e613b400116fdb7ff6206a681ab271.
>
> This commit caused a regression on Armada 37xx. The pinctrl driver says
> armada-37xx-pinctrl d0013800.pinctrl: invalid or no IRQ
> armada-37xx-pinctrl d0018800.pinctrl: invalid or no IRQ
> and afterwards other drivers cannot use GPIOs by this driver as IRQs.
>
> Fixes: 06e26b75f5e6 ("pinctrl: mvebu: armada-37xx: use use platform...")
> Signed-off-by: Marek Beh?n <[email protected]>
> Cc: Peng Fan <[email protected]>
> ---
> drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 12 +++---------
> 1 file changed, 3 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
> index 32f12a388b3c..5f125bd6279d 100644
> --- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
> +++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
> @@ -15,6 +15,7 @@
> #include <linux/of.h>
> #include <linux/of_address.h>
> #include <linux/of_device.h>
> +#include <linux/of_irq.h>
> #include <linux/pinctrl/pinconf-generic.h>
> #include <linux/pinctrl/pinconf.h>
> #include <linux/pinctrl/pinctrl.h>
> @@ -741,14 +742,7 @@ static int armada_37xx_irqchip_register(struct platform_device *pdev,
> return ret;
> }
>
> - nr_irq_parent = platform_irq_count(pdev);

Hi Marek

Could you determine the value of nr_irq_parent(). Is it -EPROBE_DEFER?
This patch has removed the handling of that.

> - if (nr_irq_parent < 0) {
> - if (nr_irq_parent != -EPROBE_DEFER)
> - dev_err(dev, "Couldn't determine irq count: %pe\n",
> - ERR_PTR(nr_irq_parent));
> - return nr_irq_parent;
> - }

Thanks
Andrew

2020-04-07 11:53:34

by Pali Rohár

[permalink] [raw]
Subject: Re: [PATCH pinctrl REGRESSION] Revert "pinctrl: mvebu: armada-37xx: use use platform api"

On Tuesday 24 March 2020 13:20:17 Andrew Lunn wrote:
> On Tue, Mar 24, 2020 at 01:44:13AM +0100, Marek Behún wrote:
> > This reverts commit 06e26b75f5e613b400116fdb7ff6206a681ab271.
> >
> > This commit caused a regression on Armada 37xx. The pinctrl driver says
> > armada-37xx-pinctrl d0013800.pinctrl: invalid or no IRQ
> > armada-37xx-pinctrl d0018800.pinctrl: invalid or no IRQ
> > and afterwards other drivers cannot use GPIOs by this driver as IRQs.
> >
> > Fixes: 06e26b75f5e6 ("pinctrl: mvebu: armada-37xx: use use platform...")
> > Signed-off-by: Marek Behún <[email protected]>
> > Cc: Peng Fan <[email protected]>
> > ---
> > drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 12 +++---------
> > 1 file changed, 3 insertions(+), 9 deletions(-)
> >
> > diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
> > index 32f12a388b3c..5f125bd6279d 100644
> > --- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
> > +++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
> > @@ -15,6 +15,7 @@
> > #include <linux/of.h>
> > #include <linux/of_address.h>
> > #include <linux/of_device.h>
> > +#include <linux/of_irq.h>
> > #include <linux/pinctrl/pinconf-generic.h>
> > #include <linux/pinctrl/pinconf.h>
> > #include <linux/pinctrl/pinctrl.h>
> > @@ -741,14 +742,7 @@ static int armada_37xx_irqchip_register(struct platform_device *pdev,
> > return ret;
> > }
> >
> > - nr_irq_parent = platform_irq_count(pdev);
>
> Hi Marek
>
> Could you determine the value of nr_irq_parent(). Is it -EPROBE_DEFER?

Hello Andrew! I have tested it with 5.6 kernel and return value in
nr_irq_parent is in both cases zero. So it is not -EPROBE_DEFER. And
return value of of_irq_count(np) is 12 for d0013800.pinctrl and 5 for
d0018800.pinctrl.

So this is a clear regression introduced by that patch.

> This patch has removed the handling of that.
>
> > - if (nr_irq_parent < 0) {
> > - if (nr_irq_parent != -EPROBE_DEFER)
> > - dev_err(dev, "Couldn't determine irq count: %pe\n",
> > - ERR_PTR(nr_irq_parent));
> > - return nr_irq_parent;
> > - }
>
> Thanks
> Andrew

2020-04-15 22:52:58

by Pali Rohár

[permalink] [raw]
Subject: Re: [PATCH pinctrl REGRESSION] Revert "pinctrl: mvebu: armada-37xx: use use platform api"

On Tuesday 07 April 2020 13:52:30 Pali Rohár wrote:
> On Tuesday 24 March 2020 13:20:17 Andrew Lunn wrote:
> > On Tue, Mar 24, 2020 at 01:44:13AM +0100, Marek Behún wrote:
> > > This reverts commit 06e26b75f5e613b400116fdb7ff6206a681ab271.
> > >
> > > This commit caused a regression on Armada 37xx. The pinctrl driver says
> > > armada-37xx-pinctrl d0013800.pinctrl: invalid or no IRQ
> > > armada-37xx-pinctrl d0018800.pinctrl: invalid or no IRQ
> > > and afterwards other drivers cannot use GPIOs by this driver as IRQs.
> > >
> > > Fixes: 06e26b75f5e6 ("pinctrl: mvebu: armada-37xx: use use platform...")
> > > Signed-off-by: Marek Behún <[email protected]>
> > > Cc: Peng Fan <[email protected]>
> > > ---
> > > drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 12 +++---------
> > > 1 file changed, 3 insertions(+), 9 deletions(-)
> > >
> > > diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
> > > index 32f12a388b3c..5f125bd6279d 100644
> > > --- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
> > > +++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
> > > @@ -15,6 +15,7 @@
> > > #include <linux/of.h>
> > > #include <linux/of_address.h>
> > > #include <linux/of_device.h>
> > > +#include <linux/of_irq.h>
> > > #include <linux/pinctrl/pinconf-generic.h>
> > > #include <linux/pinctrl/pinconf.h>
> > > #include <linux/pinctrl/pinctrl.h>
> > > @@ -741,14 +742,7 @@ static int armada_37xx_irqchip_register(struct platform_device *pdev,
> > > return ret;
> > > }
> > >
> > > - nr_irq_parent = platform_irq_count(pdev);
> >
> > Hi Marek
> >
> > Could you determine the value of nr_irq_parent(). Is it -EPROBE_DEFER?
>
> Hello Andrew! I have tested it with 5.6 kernel and return value in
> nr_irq_parent is in both cases zero. So it is not -EPROBE_DEFER. And
> return value of of_irq_count(np) is 12 for d0013800.pinctrl and 5 for
> d0018800.pinctrl.

Adding Jason, Gregory and Sebastian into the loop.

Could you please look at this problem? If there is no easy solution,
I would suggest to revert problematic commit as pinctrl in current state
is broken and unusable.

> So this is a clear regression introduced by that patch.
>
> > This patch has removed the handling of that.
> >
> > > - if (nr_irq_parent < 0) {
> > > - if (nr_irq_parent != -EPROBE_DEFER)
> > > - dev_err(dev, "Couldn't determine irq count: %pe\n",
> > > - ERR_PTR(nr_irq_parent));
> > > - return nr_irq_parent;
> > > - }
> >
> > Thanks
> > Andrew

2020-04-16 00:23:00

by Marek Behún

[permalink] [raw]
Subject: Re: [PATCH pinctrl REGRESSION] Revert "pinctrl: mvebu: armada-37xx: use use platform api"

On Wed, 15 Apr 2020 11:53:07 +0200
Pali Rohár <[email protected]> wrote:

> On Tuesday 07 April 2020 13:52:30 Pali Rohár wrote:
> > On Tuesday 24 March 2020 13:20:17 Andrew Lunn wrote:
> > > On Tue, Mar 24, 2020 at 01:44:13AM +0100, Marek Behún wrote:
> > > > This reverts commit 06e26b75f5e613b400116fdb7ff6206a681ab271.
> > > >
> > > > This commit caused a regression on Armada 37xx. The pinctrl driver says
> > > > armada-37xx-pinctrl d0013800.pinctrl: invalid or no IRQ
> > > > armada-37xx-pinctrl d0018800.pinctrl: invalid or no IRQ
> > > > and afterwards other drivers cannot use GPIOs by this driver as IRQs.
> > > >
> > > > Fixes: 06e26b75f5e6 ("pinctrl: mvebu: armada-37xx: use use platform...")
> > > > Signed-off-by: Marek Behún <[email protected]>
> > > > Cc: Peng Fan <[email protected]>
> > > > ---
> > > > drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 12 +++---------
> > > > 1 file changed, 3 insertions(+), 9 deletions(-)
> > > >
> > > > diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
> > > > index 32f12a388b3c..5f125bd6279d 100644
> > > > --- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
> > > > +++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
> > > > @@ -15,6 +15,7 @@
> > > > #include <linux/of.h>
> > > > #include <linux/of_address.h>
> > > > #include <linux/of_device.h>
> > > > +#include <linux/of_irq.h>
> > > > #include <linux/pinctrl/pinconf-generic.h>
> > > > #include <linux/pinctrl/pinconf.h>
> > > > #include <linux/pinctrl/pinctrl.h>
> > > > @@ -741,14 +742,7 @@ static int armada_37xx_irqchip_register(struct platform_device *pdev,
> > > > return ret;
> > > > }
> > > >
> > > > - nr_irq_parent = platform_irq_count(pdev);
> > >
> > > Hi Marek
> > >
> > > Could you determine the value of nr_irq_parent(). Is it -EPROBE_DEFER?
> >
> > Hello Andrew! I have tested it with 5.6 kernel and return value in
> > nr_irq_parent is in both cases zero. So it is not -EPROBE_DEFER. And
> > return value of of_irq_count(np) is 12 for d0013800.pinctrl and 5 for
> > d0018800.pinctrl.
>
> Adding Jason, Gregory and Sebastian into the loop.
>
> Could you please look at this problem? If there is no easy solution,
> I would suggest to revert problematic commit as pinctrl in current state
> is broken and unusable.

Pali, the commit is already reverted in upstream.