[PATCH 0/2] ath79 misc irq controller

[PATCH 0/2] ath79 misc irq controller

[Alexander Couzens]

Hi Alban,

I've done the requested changes.

Best,
Alex

v2:
 move new IRQ_DECLARE just behind the new init for ar7100
 don't remove newline
 add log line when setup ar7100 misc irq controller
 improve commit message for missing irq ack handler

Alexander Couzens (2):
  MIPS: ath79: set missing irq ack handler for ar7100-misc-intc irq chip
  MIPS: ath79: add irq chip ar7240-misc-intc

 .../interrupt-controller/qca,ath79-misc-intc.txt   | 18 ++++++++++++++++-
 arch/mips/ath79/irq.c                              | 23 ++++++++++++++++++++--
 2 files changed, 38 insertions(+), 3 deletions(-)

-- 
2.4.0

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[PATCH 1/2] MIPS: ath79: set missing irq ack handler for ar7100-misc-intc irq chip

[Alexander Couzens]

The irq ack handler was forgotten while introducing OF support.
Only ar71xx and ar933x based devices require it.

Signed-off-by: Alexander Couzens <lynxis-qyMx1GtpvWw@public.gmane.org>
---
 arch/mips/ath79/irq.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c
index afb0096..1917f55 100644
--- a/arch/mips/ath79/irq.c
+++ b/arch/mips/ath79/irq.c
@@ -308,8 +308,17 @@ static int __init ath79_misc_intc_of_init(
 
 	return 0;
 }
-IRQCHIP_DECLARE(ath79_misc_intc, "qca,ar7100-misc-intc",
-		ath79_misc_intc_of_init);
+
+static int __init ar7100_misc_intc_of_init(
+	struct device_node *node, struct device_node *parent)
+{
+	pr_info("IRQ: Setup ar7100 misc IRQ controller from devicetree.\n");
+	ath79_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask;
+	return ath79_misc_intc_of_init(node, parent);
+}
+
+IRQCHIP_DECLARE(ar7100_misc_intc, "qca,ar7100-misc-intc",
+		ar7100_misc_intc_of_init);
 
 static int __init ar79_cpu_intc_of_init(
 	struct device_node *node, struct device_node *parent)
-- 
2.4.0

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Re: [PATCH 1/2] MIPS: ath79: set missing irq ack handler for ar7100-misc-intc irq chip

[Alban]

On Thu,  3 Sep 2015 05:34:21 +0200
Alexander Couzens <lynxis-qyMx1GtpvWw@public.gmane.org> wrote:

> The irq ack handler was forgotten while introducing OF support.
> Only ar71xx and ar933x based devices require it.
> 
> Signed-off-by: Alexander Couzens <lynxis-qyMx1GtpvWw@public.gmane.org>
> ---
>  arch/mips/ath79/irq.c | 13 +++++++++++--
>  1 file changed, 11 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c
> index afb0096..1917f55 100644
> --- a/arch/mips/ath79/irq.c
> +++ b/arch/mips/ath79/irq.c
> @@ -308,8 +308,17 @@ static int __init ath79_misc_intc_of_init(
>  
>  	return 0;
>  }
> -IRQCHIP_DECLARE(ath79_misc_intc, "qca,ar7100-misc-intc",
> -		ath79_misc_intc_of_init);
> +
> +static int __init ar7100_misc_intc_of_init(
> +	struct device_node *node, struct device_node *parent)
> +{
> +	pr_info("IRQ: Setup ar7100 misc IRQ controller from devicetree.\n");

Debug left over?

> +	ath79_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask;
> +	return ath79_misc_intc_of_init(node, parent);
> +}
> +
> +IRQCHIP_DECLARE(ar7100_misc_intc, "qca,ar7100-misc-intc",
> +		ar7100_misc_intc_of_init);
>  
>  static int __init ar79_cpu_intc_of_init(
>  	struct device_node *node, struct device_node *parent)

Otherwise that looks good.

Alban
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Re: [PATCH 1/2] MIPS: ath79: set missing irq ack handler for ar7100-misc-intc irq chip

[Alexander Couzens]

[-- Attachment #1: Type: text/plain, Size: 776 bytes --]

On Thu, 3 Sep 2015 10:32:45 +0200
Alban <albeu-GANU6spQydw@public.gmane.org> wrote:

> > -IRQCHIP_DECLARE(ath79_misc_intc, "qca,ar7100-misc-intc",
> > -		ath79_misc_intc_of_init);
> > +
> > +static int __init ar7100_misc_intc_of_init(
> > +	struct device_node *node, struct device_node *parent)
> > +{
> > +	pr_info("IRQ: Setup ar7100 misc IRQ controller from
> > devicetree.\n");
> 
> Debug left over?

I'll remove it in next patch. I added it because you mentioned a log
message in your last review.

> On Mon, 10 Aug 2015 20:11:14 +0200
> Alban <albeu-GANU6spQydw@public.gmane.org> wrote:
>> Mon, 10 Aug 2015 20:11:14 +0200
>> A log message would be nice. IMHO it should mention that the ACK
>> callbacks have been missed when introducing OF support.

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Re: [PATCH 1/2] MIPS: ath79: set missing irq ack handler for ar7100-misc-intc irq chip

[Alban]

[-- Attachment #1: Type: text/plain, Size: 719 bytes --]

On Wed, 9 Sep 2015 11:04:06 +0200
Alexander Couzens <lynxis-qyMx1GtpvWw@public.gmane.org> wrote:

> On Thu, 3 Sep 2015 10:32:45 +0200
> Alban <albeu-GANU6spQydw@public.gmane.org> wrote:
> 
> > > -IRQCHIP_DECLARE(ath79_misc_intc, "qca,ar7100-misc-intc",
> > > -		ath79_misc_intc_of_init);
> > > +
> > > +static int __init ar7100_misc_intc_of_init(
> > > +	struct device_node *node, struct device_node *parent)
> > > +{
> > > +	pr_info("IRQ: Setup ar7100 misc IRQ controller from
> > > devicetree.\n");
> > 
> > Debug left over?
> 
> I'll remove it in next patch. I added it because you mentioned a log
> message in your last review.

I meant the commit log, sorry for the misunderstanding.

Alban

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[PATCH 2/2] MIPS: ath79: add irq chip ar7240-misc-intc

[Alexander Couzens]

The ar7240 misc irq chip use ack handler
instead of ack_mask handler. All new ath79 chips use
the ar7240 misc irq chip

Signed-off-by: Alexander Couzens <lynxis-qyMx1GtpvWw@public.gmane.org>
---
 .../interrupt-controller/qca,ath79-misc-intc.txt       | 18 +++++++++++++++++-
 arch/mips/ath79/irq.c                                  | 10 ++++++++++
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
index 391717a..56ccaf3 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
@@ -4,7 +4,7 @@ The MISC interrupt controller is a secondary controller for lower priority
 interrupt.
 
 Required Properties:
-- compatible: has to be "qca,<soctype>-cpu-intc", "qca,ar7100-misc-intc"
+- compatible: has to be "qca,<soctype>-cpu-intc", "qca,ar{7100,7240}-misc-intc"
   as fallback
 - reg: Base address and size of the controllers memory area
 - interrupt-parent: phandle of the parent interrupt controller.
@@ -13,6 +13,9 @@ Required Properties:
 - #interrupt-cells : Specifies the number of cells needed to encode interrupt
 		     source, should be 1
 
+Compatible fallback depends on the SoC. Use ar7100 for ar71xx and ar913x,
+use ar7240 for all other SoCs.
+
 Please refer to interrupts.txt in this directory for details of the common
 Interrupt Controllers bindings used by client devices.
 
@@ -28,3 +31,16 @@ Example:
 		interrupt-controller;
 		#interrupt-cells = <1>;
 	};
+
+Another example:
+
+	interrupt-controller@18060010 {
+		compatible = "qca,ar9331-misc-intc", qca,ar7240-misc-intc";
+		reg = <0x18060010 0x4>;
+
+		interrupt-parent = <&cpuintc>;
+		interrupts = <6>;
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};
diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c
index 1917f55..7b38958 100644
--- a/arch/mips/ath79/irq.c
+++ b/arch/mips/ath79/irq.c
@@ -320,6 +320,16 @@ static int __init ar7100_misc_intc_of_init(
 IRQCHIP_DECLARE(ar7100_misc_intc, "qca,ar7100-misc-intc",
 		ar7100_misc_intc_of_init);
 
+static int __init ar7240_misc_intc_of_init(
+	struct device_node *node, struct device_node *parent)
+{
+	ath79_misc_irq_chip.irq_ack = ar724x_misc_irq_ack;
+	return ath79_misc_intc_of_init(node, parent);
+}
+
+IRQCHIP_DECLARE(ar7240_misc_intc, "qca,ar7240-misc-intc",
+		ar7240_misc_intc_of_init);
+
 static int __init ar79_cpu_intc_of_init(
 	struct device_node *node, struct device_node *parent)
 {
-- 
2.4.0

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Re: [PATCH 2/2] MIPS: ath79: add irq chip ar7240-misc-intc

[Alban]

On Thu,  3 Sep 2015 05:34:22 +0200
Alexander Couzens <lynxis-qyMx1GtpvWw@public.gmane.org> wrote:

> The ar7240 misc irq chip use ack handler
> instead of ack_mask handler. All new ath79 chips use
> the ar7240 misc irq chip
> 
> Signed-off-by: Alexander Couzens <lynxis-qyMx1GtpvWw@public.gmane.org>
> ---
>  .../interrupt-controller/qca,ath79-misc-intc.txt       | 18 +++++++++++++++++-
>  arch/mips/ath79/irq.c                                  | 10 ++++++++++
>  2 files changed, 27 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
> index 391717a..56ccaf3 100644
> --- a/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
> +++ b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
> @@ -4,7 +4,7 @@ The MISC interrupt controller is a secondary controller for lower priority
>  interrupt.
>  
>  Required Properties:
> -- compatible: has to be "qca,<soctype>-cpu-intc", "qca,ar7100-misc-intc"
> +- compatible: has to be "qca,<soctype>-cpu-intc", "qca,ar{7100,7240}-misc-intc"
>    as fallback
>  - reg: Base address and size of the controllers memory area
>  - interrupt-parent: phandle of the parent interrupt controller.
> @@ -13,6 +13,9 @@ Required Properties:
>  - #interrupt-cells : Specifies the number of cells needed to encode interrupt
>  		     source, should be 1
>  
> +Compatible fallback depends on the SoC. Use ar7100 for ar71xx and ar913x,
> +use ar7240 for all other SoCs.
> +
>  Please refer to interrupts.txt in this directory for details of the common
>  Interrupt Controllers bindings used by client devices.
>  
> @@ -28,3 +31,16 @@ Example:
>  		interrupt-controller;
>  		#interrupt-cells = <1>;
>  	};
> +
> +Another example:
> +
> +	interrupt-controller@18060010 {
> +		compatible = "qca,ar9331-misc-intc", qca,ar7240-misc-intc";
> +		reg = <0x18060010 0x4>;
> +
> +		interrupt-parent = <&cpuintc>;
> +		interrupts = <6>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <1>;
> +	};
> diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c
> index 1917f55..7b38958 100644
> --- a/arch/mips/ath79/irq.c
> +++ b/arch/mips/ath79/irq.c
> @@ -320,6 +320,16 @@ static int __init ar7100_misc_intc_of_init(
>  IRQCHIP_DECLARE(ar7100_misc_intc, "qca,ar7100-misc-intc",
>  		ar7100_misc_intc_of_init);
>  
> +static int __init ar7240_misc_intc_of_init(
> +	struct device_node *node, struct device_node *parent)
> +{
> +	ath79_misc_irq_chip.irq_ack = ar724x_misc_irq_ack;
> +	return ath79_misc_intc_of_init(node, parent);
> +}
> +
> +IRQCHIP_DECLARE(ar7240_misc_intc, "qca,ar7240-misc-intc",
> +		ar7240_misc_intc_of_init);
> +
>  static int __init ar79_cpu_intc_of_init(
>  	struct device_node *node, struct device_node *parent)
>  {

Acked-by: Alban Bedel <albeu-GANU6spQydw@public.gmane.org>
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Re: [PATCH 2/2] MIPS: ath79: add irq chip ar7240-misc-intc

[Mark Rutland]

On Thu, Sep 03, 2015 at 04:34:22AM +0100, Alexander Couzens wrote:
> The ar7240 misc irq chip use ack handler
> instead of ack_mask handler. All new ath79 chips use
> the ar7240 misc irq chip
> 
> Signed-off-by: Alexander Couzens <lynxis-qyMx1GtpvWw@public.gmane.org>
> ---
>  .../interrupt-controller/qca,ath79-misc-intc.txt       | 18 +++++++++++++++++-
>  arch/mips/ath79/irq.c                                  | 10 ++++++++++
>  2 files changed, 27 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
> index 391717a..56ccaf3 100644
> --- a/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
> +++ b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
> @@ -4,7 +4,7 @@ The MISC interrupt controller is a secondary controller for lower priority
>  interrupt.
>  
>  Required Properties:
> -- compatible: has to be "qca,<soctype>-cpu-intc", "qca,ar7100-misc-intc"
> +- compatible: has to be "qca,<soctype>-cpu-intc", "qca,ar{7100,7240}-misc-intc"

Please list those strings separately, in full, such that they can be
searched for. Otherwise the addition looks fine to me.

Mark.

>    as fallback
>  - reg: Base address and size of the controllers memory area
>  - interrupt-parent: phandle of the parent interrupt controller.
> @@ -13,6 +13,9 @@ Required Properties:
>  - #interrupt-cells : Specifies the number of cells needed to encode interrupt
>  		     source, should be 1
>  
> +Compatible fallback depends on the SoC. Use ar7100 for ar71xx and ar913x,
> +use ar7240 for all other SoCs.
> +
>  Please refer to interrupts.txt in this directory for details of the common
>  Interrupt Controllers bindings used by client devices.
>  
> @@ -28,3 +31,16 @@ Example:
>  		interrupt-controller;
>  		#interrupt-cells = <1>;
>  	};
> +
> +Another example:
> +
> +	interrupt-controller@18060010 {
> +		compatible = "qca,ar9331-misc-intc", qca,ar7240-misc-intc";
> +		reg = <0x18060010 0x4>;
> +
> +		interrupt-parent = <&cpuintc>;
> +		interrupts = <6>;
> +
> +		interrupt-controller;
> +		#interrupt-cells = <1>;
> +	};
> diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c
> index 1917f55..7b38958 100644
> --- a/arch/mips/ath79/irq.c
> +++ b/arch/mips/ath79/irq.c
> @@ -320,6 +320,16 @@ static int __init ar7100_misc_intc_of_init(
>  IRQCHIP_DECLARE(ar7100_misc_intc, "qca,ar7100-misc-intc",
>  		ar7100_misc_intc_of_init);
>  
> +static int __init ar7240_misc_intc_of_init(
> +	struct device_node *node, struct device_node *parent)
> +{
> +	ath79_misc_irq_chip.irq_ack = ar724x_misc_irq_ack;
> +	return ath79_misc_intc_of_init(node, parent);
> +}
> +
> +IRQCHIP_DECLARE(ar7240_misc_intc, "qca,ar7240-misc-intc",
> +		ar7240_misc_intc_of_init);
> +
>  static int __init ar79_cpu_intc_of_init(
>  	struct device_node *node, struct device_node *parent)
>  {
> -- 
> 2.4.0
> 
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[PATCH 0/2] v3 ath79 misc irq controller

[Alexander Couzens]

Hi,

sorry for the noise, I've overseen the IRQ Chip maintainers.
Hopefully I've now all maintainers in cc.

v3:
 remove log line when setup ar7100 misc irq controller
 doc: write out {ar7100,ar7240} into two seperate lines

v2:
 move new IRQ_DECLARE just behind the new init for ar7100
 don't remove newline
 add log line when setup ar7100 misc irq controller
 improve commit message for missing irq ack handler

Alexander Couzens (2):
  MIPS: ath79: set missing irq ack handler for ar7100-misc-intc irq chip
  MIPS: ath79: add irq chip ar7240-misc-intc

 .../interrupt-controller/qca,ath79-misc-intc.txt   | 20 ++++++++++++++++++--
 arch/mips/ath79/irq.c                              | 22 ++++++++++++++++++++--
 2 files changed, 38 insertions(+), 4 deletions(-)

-- 
2.4.0

[PATCH 2/2] MIPS: ath79: add irq chip ar7240-misc-intc

[Alexander Couzens]

The ar7240 misc irq chip use ack handler
instead of ack_mask handler. All new ath79 chips use
the ar7240 misc irq chip

Signed-off-by: Alexander Couzens <lynxis-qyMx1GtpvWw@public.gmane.org>
Acked-by: Alban Bedel <albeu-GANU6spQydw@public.gmane.org>
---
 .../interrupt-controller/qca,ath79-misc-intc.txt     | 20 ++++++++++++++++++--
 arch/mips/ath79/irq.c                                | 10 ++++++++++
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
index 391717a..ec96b1f 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
@@ -4,8 +4,8 @@ The MISC interrupt controller is a secondary controller for lower priority
 interrupt.
 
 Required Properties:
-- compatible: has to be "qca,<soctype>-cpu-intc", "qca,ar7100-misc-intc"
-  as fallback
+- compatible: has to be "qca,<soctype>-cpu-intc", "qca,ar7100-misc-intc" or
+  "qca,<soctype>-cpu-intc", "qca,ar7240-misc-intc"
 - reg: Base address and size of the controllers memory area
 - interrupt-parent: phandle of the parent interrupt controller.
 - interrupts: Interrupt specifier for the controllers interrupt.
@@ -13,6 +13,9 @@ Required Properties:
 - #interrupt-cells : Specifies the number of cells needed to encode interrupt
 		     source, should be 1
 
+Compatible fallback depends on the SoC. Use ar7100 for ar71xx and ar913x,
+use ar7240 for all other SoCs.
+
 Please refer to interrupts.txt in this directory for details of the common
 Interrupt Controllers bindings used by client devices.
 
@@ -28,3 +31,16 @@ Example:
 		interrupt-controller;
 		#interrupt-cells = <1>;
 	};
+
+Another example:
+
+	interrupt-controller@18060010 {
+		compatible = "qca,ar9331-misc-intc", qca,ar7240-misc-intc";
+		reg = <0x18060010 0x4>;
+
+		interrupt-parent = <&cpuintc>;
+		interrupts = <6>;
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};
diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c
index c9c0124..fd58f8b 100644
--- a/arch/mips/ath79/irq.c
+++ b/arch/mips/ath79/irq.c
@@ -319,6 +319,16 @@ static int __init ar7100_misc_intc_of_init(
 IRQCHIP_DECLARE(ar7100_misc_intc, "qca,ar7100-misc-intc",
 		ar7100_misc_intc_of_init);
 
+static int __init ar7240_misc_intc_of_init(
+	struct device_node *node, struct device_node *parent)
+{
+	ath79_misc_irq_chip.irq_ack = ar724x_misc_irq_ack;
+	return ath79_misc_intc_of_init(node, parent);
+}
+
+IRQCHIP_DECLARE(ar7240_misc_intc, "qca,ar7240-misc-intc",
+		ar7240_misc_intc_of_init);
+
 static int __init ar79_cpu_intc_of_init(
 	struct device_node *node, struct device_node *parent)
 {
-- 
2.4.0

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Re: [PATCH 2/2] MIPS: ath79: add irq chip ar7240-misc-intc

[Thomas Gleixner]

On Sat, 19 Sep 2015, Alexander Couzens wrote:

> The ar7240 misc irq chip use ack handler
> instead of ack_mask handler. All new ath79 chips use
> the ar7240 misc irq chip
> 
> Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
> Acked-by: Alban Bedel <albeu@free.fr>
> ---
>  .../interrupt-controller/qca,ath79-misc-intc.txt     | 20 ++++++++++++++++++--
>  arch/mips/ath79/irq.c                                | 10 ++++++++++

That driver should probably move into drivers/irqchip.

Other than that.

Acked-by: Thomas Gleixner <tglx@linutronix.de>

Re: [PATCH 2/2] MIPS: ath79: add irq chip ar7240-misc-intc

[Ralf Baechle]

On Tue, Sep 22, 2015 at 12:24:26PM +0200, Thomas Gleixner wrote:

> > The ar7240 misc irq chip use ack handler
> > instead of ack_mask handler. All new ath79 chips use
> > the ar7240 misc irq chip
> > 
> > Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
> > Acked-by: Alban Bedel <albeu@free.fr>
> > ---
> >  .../interrupt-controller/qca,ath79-misc-intc.txt     | 20 ++++++++++++++++++--
> >  arch/mips/ath79/irq.c                                | 10 ++++++++++
> 
> That driver should probably move into drivers/irqchip.

Like a fair number of other irq.c type files in arch/mips that could
reasonably easily be rewritten to go to drivers/irqchip.

> Other than that.
> 
> Acked-by: Thomas Gleixner <tglx@linutronix.de>

Thanks, I replaced the previous version of this patch with this one.

  Ralf

[PATCH 1/2] MIPS: ath79: set irq ACK handler for ar7100-misc-intc irq chip

[Alexander Couzens]

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
---
 arch/mips/ath79/irq.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c
index afb0096..dc76fa1 100644
--- a/arch/mips/ath79/irq.c
+++ b/arch/mips/ath79/irq.c
@@ -303,13 +303,20 @@ static int __init ath79_misc_intc_of_init(
 	__raw_writel(0, base + AR71XX_RESET_REG_MISC_INT_ENABLE);
 	__raw_writel(0, base + AR71XX_RESET_REG_MISC_INT_STATUS);
 
-
 	irq_set_chained_handler(irq, ath79_misc_irq_handler);
 
 	return 0;
 }
-IRQCHIP_DECLARE(ath79_misc_intc, "qca,ar7100-misc-intc",
-		ath79_misc_intc_of_init);
+
+static int __init ar7100_misc_intc_of_init(
+	struct device_node *node, struct device_node *parent)
+{
+	ath79_misc_irq_chip.irq_mask_ack = ar71xx_misc_irq_mask;
+	return ath79_misc_intc_of_init(node, parent);
+}
+
+IRQCHIP_DECLARE(ar7100_misc_intc, "qca,ar7100-misc-intc",
+		ar7100_misc_intc_of_init);
 
 static int __init ar79_cpu_intc_of_init(
 	struct device_node *node, struct device_node *parent)
-- 
2.4.0

[PATCH 2/2] MIPS: ath79: add irq chip ar7240-misc-intc

[Alexander Couzens]

The ar7240 misc irq chip use ack handler instead of ack_mask handler.
All new ath79 SoCs use the ar7240 misc irq chip

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
---
 .../interrupt-controller/qca,ath79-misc-intc.txt       | 18 +++++++++++++++++-
 arch/mips/ath79/irq.c                                  |  9 +++++++++
 2 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
index 391717a..56ccaf3 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/qca,ath79-misc-intc.txt
@@ -4,7 +4,7 @@ The MISC interrupt controller is a secondary controller for lower priority
 interrupt.
 
 Required Properties:
-- compatible: has to be "qca,<soctype>-cpu-intc", "qca,ar7100-misc-intc"
+- compatible: has to be "qca,<soctype>-cpu-intc", "qca,ar{7100,7240}-misc-intc"
   as fallback
 - reg: Base address and size of the controllers memory area
 - interrupt-parent: phandle of the parent interrupt controller.
@@ -13,6 +13,9 @@ Required Properties:
 - #interrupt-cells : Specifies the number of cells needed to encode interrupt
 		     source, should be 1
 
+Compatible fallback depends on the SoC. Use ar7100 for ar71xx and ar913x,
+use ar7240 for all other SoCs.
+
 Please refer to interrupts.txt in this directory for details of the common
 Interrupt Controllers bindings used by client devices.
 
@@ -28,3 +31,16 @@ Example:
 		interrupt-controller;
 		#interrupt-cells = <1>;
 	};
+
+Another example:
+
+	interrupt-controller@18060010 {
+		compatible = "qca,ar9331-misc-intc", qca,ar7240-misc-intc";
+		reg = <0x18060010 0x4>;
+
+		interrupt-parent = <&cpuintc>;
+		interrupts = <6>;
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};
diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c
index dc76fa1..bcb2fb32 100644
--- a/arch/mips/ath79/irq.c
+++ b/arch/mips/ath79/irq.c
@@ -315,8 +315,17 @@ static int __init ar7100_misc_intc_of_init(
 	return ath79_misc_intc_of_init(node, parent);
 }
 
+static int __init ar7240_misc_intc_of_init(
+	struct device_node *node, struct device_node *parent)
+{
+	ath79_misc_irq_chip.irq_ack = ar724x_misc_irq_ack;
+	return ath79_misc_intc_of_init(node, parent);
+}
+
 IRQCHIP_DECLARE(ar7100_misc_intc, "qca,ar7100-misc-intc",
 		ar7100_misc_intc_of_init);
+IRQCHIP_DECLARE(ar7240_misc_intc, "qca,ar7240-misc-intc",
+		ar7240_misc_intc_of_init);
 
 static int __init ar79_cpu_intc_of_init(
 	struct device_node *node, struct device_node *parent)
-- 
2.4.0

Re: [PATCH 2/2] MIPS: ath79: add irq chip ar7240-misc-intc

[Alban]

On Thu,  6 Aug 2015 12:43:25 +0200
Alexander Couzens <lynxis-qyMx1GtpvWw@public.gmane.org> wrote:

> The ar7240 misc irq chip use ack handler instead of ack_mask handler.
> All new ath79 SoCs use the ar7240 misc irq chip

except the ar913x family according to the later documentation.

[...]

> --- a/arch/mips/ath79/irq.c
> +++ b/arch/mips/ath79/irq.c
> @@ -315,8 +315,17 @@ static int __init ar7100_misc_intc_of_init(
>  	return ath79_misc_intc_of_init(node, parent);
>  }
>  
> +static int __init ar7240_misc_intc_of_init(
> +	struct device_node *node, struct device_node *parent)
> +{
> +	ath79_misc_irq_chip.irq_ack = ar724x_misc_irq_ack;
> +	return ath79_misc_intc_of_init(node, parent);
> +}
> +
>  IRQCHIP_DECLARE(ar7100_misc_intc, "qca,ar7100-misc-intc",
>  		ar7100_misc_intc_of_init);
> +IRQCHIP_DECLARE(ar7240_misc_intc, "qca,ar7240-misc-intc",
> +		ar7240_misc_intc_of_init);

It would be better to keep the same formatting as the surrounding code.
Could you keep the IRQCHIP_DECLARE() together with the init function
and remove the extra blank line?

Alban
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