diff mbox series

[v1] gpio: tegra: Fix irq_set_affinity

Message ID 20210120004548.31692-1-digetx@gmail.com
State Accepted
Commit 94de03ccc9f5d13e36cf1db8f9dfbf676fdfec07
Headers show
Series [v1] gpio: tegra: Fix irq_set_affinity | expand

Commit Message

Dmitry Osipenko Jan. 20, 2021, 12:45 a.m. UTC
The irq_set_affinity callback should not be set if parent IRQ domain
doesn't present because gpio-tegra driver callback fails in this case,
causing a noisy error messages on system suspend:

 Disabling non-boot CPUs ...
 IRQ 26: no longer affine to CPU1
 IRQ128: set affinity failed(-22).
 IRQ130: set affinity failed(-22).
 IRQ131: set affinity failed(-22).
 IRQ 27: no longer affine to CPU2
 IRQ128: set affinity failed(-22).
 IRQ130: set affinity failed(-22).
 IRQ131: set affinity failed(-22).
 IRQ 28: no longer affine to CPU3
 IRQ128: set affinity failed(-22).
 IRQ130: set affinity failed(-22).
 IRQ131: set affinity failed(-22).
 Entering suspend state LP1

Hence just don't specify the irq_set_affinity callback if parent PMC
IRQ domain is missing. Tegra isn't capable of setting affinity per GPIO,
affinity could be set only per GPIO bank, thus there is nothing to do
for gpio-tegra in regards to CPU affinity without the parent IRQ domain.

Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
Tested-by: Dmitry Osipenko <digetx@gmail.com> # A500 T20 and Nexus7 T30
Fixes: efcdca286eef ("gpio: tegra: Convert to gpio_irq_chip")
Reported-by: Matt Merhar <mattmerhar@protonmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 drivers/gpio/gpio-tegra.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Comments

Linus Walleij Jan. 22, 2021, 12:55 p.m. UTC | #1
On Wed, Jan 20, 2021 at 1:46 AM Dmitry Osipenko <digetx@gmail.com> wrote:

> The irq_set_affinity callback should not be set if parent IRQ domain

> doesn't present because gpio-tegra driver callback fails in this case,

> causing a noisy error messages on system suspend:

>

>  Disabling non-boot CPUs ...

>  IRQ 26: no longer affine to CPU1

>  IRQ128: set affinity failed(-22).

>  IRQ130: set affinity failed(-22).

>  IRQ131: set affinity failed(-22).

>  IRQ 27: no longer affine to CPU2

>  IRQ128: set affinity failed(-22).

>  IRQ130: set affinity failed(-22).

>  IRQ131: set affinity failed(-22).

>  IRQ 28: no longer affine to CPU3

>  IRQ128: set affinity failed(-22).

>  IRQ130: set affinity failed(-22).

>  IRQ131: set affinity failed(-22).

>  Entering suspend state LP1

>

> Hence just don't specify the irq_set_affinity callback if parent PMC

> IRQ domain is missing. Tegra isn't capable of setting affinity per GPIO,

> affinity could be set only per GPIO bank, thus there is nothing to do

> for gpio-tegra in regards to CPU affinity without the parent IRQ domain.

>

> Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30

> Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30

> Tested-by: Dmitry Osipenko <digetx@gmail.com> # A500 T20 and Nexus7 T30

> Fixes: efcdca286eef ("gpio: tegra: Convert to gpio_irq_chip")

> Reported-by: Matt Merhar <mattmerhar@protonmail.com>

> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>


Ick, sorry for the noise!
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>


Yours,
Linus Walleij
Bartosz Golaszewski Jan. 27, 2021, 2:46 p.m. UTC | #2
On Fri, Jan 22, 2021 at 1:56 PM Linus Walleij <linus.walleij@linaro.org> wrote:
>

> On Wed, Jan 20, 2021 at 1:46 AM Dmitry Osipenko <digetx@gmail.com> wrote:

>

> > The irq_set_affinity callback should not be set if parent IRQ domain

> > doesn't present because gpio-tegra driver callback fails in this case,

> > causing a noisy error messages on system suspend:

> >

> >  Disabling non-boot CPUs ...

> >  IRQ 26: no longer affine to CPU1

> >  IRQ128: set affinity failed(-22).

> >  IRQ130: set affinity failed(-22).

> >  IRQ131: set affinity failed(-22).

> >  IRQ 27: no longer affine to CPU2

> >  IRQ128: set affinity failed(-22).

> >  IRQ130: set affinity failed(-22).

> >  IRQ131: set affinity failed(-22).

> >  IRQ 28: no longer affine to CPU3

> >  IRQ128: set affinity failed(-22).

> >  IRQ130: set affinity failed(-22).

> >  IRQ131: set affinity failed(-22).

> >  Entering suspend state LP1

> >

> > Hence just don't specify the irq_set_affinity callback if parent PMC

> > IRQ domain is missing. Tegra isn't capable of setting affinity per GPIO,

> > affinity could be set only per GPIO bank, thus there is nothing to do

> > for gpio-tegra in regards to CPU affinity without the parent IRQ domain.

> >

> > Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30

> > Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30

> > Tested-by: Dmitry Osipenko <digetx@gmail.com> # A500 T20 and Nexus7 T30

> > Fixes: efcdca286eef ("gpio: tegra: Convert to gpio_irq_chip")

> > Reported-by: Matt Merhar <mattmerhar@protonmail.com>

> > Signed-off-by: Dmitry Osipenko <digetx@gmail.com>

>

> Ick, sorry for the noise!

> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>

>

> Yours,

> Linus Walleij


Patch applied, thanks!

Bartosz
diff mbox series

Patch

diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 6c79e9d2f932..9a43129313fa 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -701,7 +701,6 @@  static int tegra_gpio_probe(struct platform_device *pdev)
 #ifdef CONFIG_PM_SLEEP
 	tgi->ic.irq_set_wake		= tegra_gpio_irq_set_wake;
 #endif
-	tgi->ic.irq_set_affinity	= tegra_gpio_irq_set_affinity;
 	tgi->ic.irq_request_resources	= tegra_gpio_irq_request_resources;
 	tgi->ic.irq_release_resources	= tegra_gpio_irq_release_resources;
 
@@ -754,6 +753,8 @@  static int tegra_gpio_probe(struct platform_device *pdev)
 
 		if (!irq->parent_domain)
 			return -EPROBE_DEFER;
+
+		tgi->ic.irq_set_affinity = tegra_gpio_irq_set_affinity;
 	}
 
 	tgi->regs = devm_platform_ioremap_resource(pdev, 0);