Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1615074 > unrolled thread

Re: [PATCH 2/4] mfd: cpcap: Use handle_reread flag for interrupts

Started byLee Jones <lee.jones@linaro.org>
First post2017-04-03 12:30 +0200
Last post2017-04-04 05:20 +0200
Articles 4 — 2 participants

Back to article view | Back to linux.kernel

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.


Contents

  Re: [PATCH 2/4] mfd: cpcap: Use handle_reread flag for interrupts Lee Jones <lee.jones@linaro.org> - 2017-04-03 12:30 +0200
    Re: [PATCH 2/4] mfd: cpcap: Use handle_reread flag for interrupts Tony Lindgren <tony@atomide.com> - 2017-04-03 16:20 +0200
      Re: [PATCH 2/4] mfd: cpcap: Use handle_reread flag for interrupts Lee Jones <lee.jones@linaro.org> - 2017-04-03 16:40 +0200
        Re: [PATCH 2/4] mfd: cpcap: Use handle_reread flag for interrupts Tony Lindgren <tony@atomide.com> - 2017-04-04 05:20 +0200

#1615074 — Re: [PATCH 2/4] mfd: cpcap: Use handle_reread flag for interrupts

FromLee Jones <lee.jones@linaro.org>
Date2017-04-03 12:30 +0200
SubjectRe: [PATCH 2/4] mfd: cpcap: Use handle_reread flag for interrupts
Message-ID<ts7pg-5zy-29@gated-at.bofh.it>
On Wed, 22 Mar 2017, Tony Lindgren wrote:

> On CPCAP we need to keep reading interrupts until there are no
> more interrupts. Otherwise the PMIC interrupt to the SoC will at
> some point stop toggling. This seems to happen because new CPCAP
> device interrupts show up while we're handling.
> 
> Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
> Cc: Lee Jones <lee.jones@linaro.org>
> Cc: Marcel Partap <mpartap@gmx.net>
> Cc: Michael Scott <michael.scott@linaro.org>
> Tested-by: Sebastian Reichel <sre@kernel.org>
> Signed-off-by: Tony Lindgren <tony@atomide.com>
> ---
>  drivers/mfd/motorola-cpcap.c | 3 +++
>  1 file changed, 3 insertions(+)

Applied, thanks.

> diff --git a/drivers/mfd/motorola-cpcap.c b/drivers/mfd/motorola-cpcap.c
> --- a/drivers/mfd/motorola-cpcap.c
> +++ b/drivers/mfd/motorola-cpcap.c
> @@ -71,6 +71,7 @@ static struct regmap_irq_chip cpcap_irq_chip[CPCAP_NR_IRQ_CHIPS] = {
>  		.ack_base = CPCAP_REG_MI1,
>  		.mask_base = CPCAP_REG_MIM1,
>  		.use_ack = true,
> +		.handle_reread = true,
>  	},
>  	{
>  		.name = "cpcap-m2",
> @@ -79,6 +80,7 @@ static struct regmap_irq_chip cpcap_irq_chip[CPCAP_NR_IRQ_CHIPS] = {
>  		.ack_base = CPCAP_REG_MI2,
>  		.mask_base = CPCAP_REG_MIM2,
>  		.use_ack = true,
> +		.handle_reread = true,
>  	},
>  	{
>  		.name = "cpcap1-4",
> @@ -88,6 +90,7 @@ static struct regmap_irq_chip cpcap_irq_chip[CPCAP_NR_IRQ_CHIPS] = {
>  		.mask_base = CPCAP_REG_INTM1,
>  		.type_base = CPCAP_REG_INTS1,
>  		.use_ack = true,
> +		.handle_reread = true,
>  	},
>  };
>  

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

[toc] | [next] | [standalone]


#1615240

FromTony Lindgren <tony@atomide.com>
Date2017-04-03 16:20 +0200
Message-ID<tsaZR-7XD-53@gated-at.bofh.it>
In reply to#1615074
Hi,

* Lee Jones <lee.jones@linaro.org> [170403 03:23]:
> On Wed, 22 Mar 2017, Tony Lindgren wrote:
> 
> > On CPCAP we need to keep reading interrupts until there are no
> > more interrupts. Otherwise the PMIC interrupt to the SoC will at
> > some point stop toggling. This seems to happen because new CPCAP
> > device interrupts show up while we're handling.
> > 
> > Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
> > Cc: Lee Jones <lee.jones@linaro.org>
> > Cc: Marcel Partap <mpartap@gmx.net>
> > Cc: Michael Scott <michael.scott@linaro.org>
> > Tested-by: Sebastian Reichel <sre@kernel.org>
> > Signed-off-by: Tony Lindgren <tony@atomide.com>
> > ---
> >  drivers/mfd/motorola-cpcap.c | 3 +++
> >  1 file changed, 3 insertions(+)
> 
> Applied, thanks.

Sorry this one depends on patch 1/4 for .handle_reread. So this
one should be reverted or dropped. That will cause trivial merge
conflicts with patches 2 and 4.

Please let me know if you want me to resend just patches 2 and 4
as patches 1 and 2 need more work.

Regards,

Tony

> > diff --git a/drivers/mfd/motorola-cpcap.c b/drivers/mfd/motorola-cpcap.c
> > --- a/drivers/mfd/motorola-cpcap.c
> > +++ b/drivers/mfd/motorola-cpcap.c
> > @@ -71,6 +71,7 @@ static struct regmap_irq_chip cpcap_irq_chip[CPCAP_NR_IRQ_CHIPS] = {
> >  		.ack_base = CPCAP_REG_MI1,
> >  		.mask_base = CPCAP_REG_MIM1,
> >  		.use_ack = true,
> > +		.handle_reread = true,
> >  	},
> >  	{
> >  		.name = "cpcap-m2",
> > @@ -79,6 +80,7 @@ static struct regmap_irq_chip cpcap_irq_chip[CPCAP_NR_IRQ_CHIPS] = {
> >  		.ack_base = CPCAP_REG_MI2,
> >  		.mask_base = CPCAP_REG_MIM2,
> >  		.use_ack = true,
> > +		.handle_reread = true,
> >  	},
> >  	{
> >  		.name = "cpcap1-4",
> > @@ -88,6 +90,7 @@ static struct regmap_irq_chip cpcap_irq_chip[CPCAP_NR_IRQ_CHIPS] = {
> >  		.mask_base = CPCAP_REG_INTM1,
> >  		.type_base = CPCAP_REG_INTS1,
> >  		.use_ack = true,
> > +		.handle_reread = true,
> >  	},
> >  };
> >  
> 
> -- 
> Lee Jones
> Linaro STMicroelectronics Landing Team Lead
> Linaro.org │ Open source software for ARM SoCs
> Follow Linaro: Facebook | Twitter | Blog

[toc] | [prev] | [next] | [standalone]


#1615261

FromLee Jones <lee.jones@linaro.org>
Date2017-04-03 16:40 +0200
Message-ID<tsbjc-84l-33@gated-at.bofh.it>
In reply to#1615240
On Mon, 03 Apr 2017, Tony Lindgren wrote:

> Hi,
> 
> * Lee Jones <lee.jones@linaro.org> [170403 03:23]:
> > On Wed, 22 Mar 2017, Tony Lindgren wrote:
> > 
> > > On CPCAP we need to keep reading interrupts until there are no
> > > more interrupts. Otherwise the PMIC interrupt to the SoC will at
> > > some point stop toggling. This seems to happen because new CPCAP
> > > device interrupts show up while we're handling.
> > > 
> > > Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
> > > Cc: Lee Jones <lee.jones@linaro.org>
> > > Cc: Marcel Partap <mpartap@gmx.net>
> > > Cc: Michael Scott <michael.scott@linaro.org>
> > > Tested-by: Sebastian Reichel <sre@kernel.org>
> > > Signed-off-by: Tony Lindgren <tony@atomide.com>
> > > ---
> > >  drivers/mfd/motorola-cpcap.c | 3 +++
> > >  1 file changed, 3 insertions(+)
> > 
> > Applied, thanks.
> 
> Sorry this one depends on patch 1/4 for .handle_reread. So this
> one should be reverted or dropped. That will cause trivial merge
> conflicts with patches 2 and 4.
> 
> Please let me know if you want me to resend just patches 2 and 4
> as patches 1 and 2 need more work.

Yes, I found that out (and replied to the regmap patch).

I'll revert them all for now.

Awaiting a subsequent revision.

> > > diff --git a/drivers/mfd/motorola-cpcap.c b/drivers/mfd/motorola-cpcap.c
> > > --- a/drivers/mfd/motorola-cpcap.c
> > > +++ b/drivers/mfd/motorola-cpcap.c
> > > @@ -71,6 +71,7 @@ static struct regmap_irq_chip cpcap_irq_chip[CPCAP_NR_IRQ_CHIPS] = {
> > >  		.ack_base = CPCAP_REG_MI1,
> > >  		.mask_base = CPCAP_REG_MIM1,
> > >  		.use_ack = true,
> > > +		.handle_reread = true,
> > >  	},
> > >  	{
> > >  		.name = "cpcap-m2",
> > > @@ -79,6 +80,7 @@ static struct regmap_irq_chip cpcap_irq_chip[CPCAP_NR_IRQ_CHIPS] = {
> > >  		.ack_base = CPCAP_REG_MI2,
> > >  		.mask_base = CPCAP_REG_MIM2,
> > >  		.use_ack = true,
> > > +		.handle_reread = true,
> > >  	},
> > >  	{
> > >  		.name = "cpcap1-4",
> > > @@ -88,6 +90,7 @@ static struct regmap_irq_chip cpcap_irq_chip[CPCAP_NR_IRQ_CHIPS] = {
> > >  		.mask_base = CPCAP_REG_INTM1,
> > >  		.type_base = CPCAP_REG_INTS1,
> > >  		.use_ack = true,
> > > +		.handle_reread = true,
> > >  	},
> > >  };
> > >  
> > 

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog

[toc] | [prev] | [next] | [standalone]


#1615679

FromTony Lindgren <tony@atomide.com>
Date2017-04-04 05:20 +0200
Message-ID<tsnaF-7AK-5@gated-at.bofh.it>
In reply to#1615261
* Lee Jones <lee.jones@linaro.org> [170403 07:34]:
> On Mon, 03 Apr 2017, Tony Lindgren wrote:
> 
> > Hi,
> > 
> > * Lee Jones <lee.jones@linaro.org> [170403 03:23]:
> > > On Wed, 22 Mar 2017, Tony Lindgren wrote:
> > > 
> > > > On CPCAP we need to keep reading interrupts until there are no
> > > > more interrupts. Otherwise the PMIC interrupt to the SoC will at
> > > > some point stop toggling. This seems to happen because new CPCAP
> > > > device interrupts show up while we're handling.
> > > > 
> > > > Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
> > > > Cc: Lee Jones <lee.jones@linaro.org>
> > > > Cc: Marcel Partap <mpartap@gmx.net>
> > > > Cc: Michael Scott <michael.scott@linaro.org>
> > > > Tested-by: Sebastian Reichel <sre@kernel.org>
> > > > Signed-off-by: Tony Lindgren <tony@atomide.com>
> > > > ---
> > > >  drivers/mfd/motorola-cpcap.c | 3 +++
> > > >  1 file changed, 3 insertions(+)
> > > 
> > > Applied, thanks.
> > 
> > Sorry this one depends on patch 1/4 for .handle_reread. So this
> > one should be reverted or dropped. That will cause trivial merge
> > conflicts with patches 2 and 4.
> > 
> > Please let me know if you want me to resend just patches 2 and 4
> > as patches 1 and 2 need more work.
> 
> Yes, I found that out (and replied to the regmap patch).
> 
> I'll revert them all for now.

OK thanks.

> Awaiting a subsequent revision.

Sent as "[PATCHv3 0/3] CPCAP PMIC IRQ fix and related changes"
with regmap changes dropped as I figured out what the real issue
with lost interrupts was :)

Regards,

Tony

[toc] | [prev] | [standalone]


Back to top | Article view | linux.kernel


csiph-web