From: miquel.raynal@bootlin.com (Miquel Raynal)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 09/14] irqchip/irq-mvebu-icu: add support for System Error Interrupts (SEI)
Date: Tue, 21 Aug 2018 11:08:25 +0200 [thread overview]
Message-ID: <20180821110825.2fbec982@xps13> (raw)
In-Reply-To: <a88f62c0-7d7c-71da-fa45-487f7573dbb1@arm.com>
Hi Marc,
I'm fine with the rest of the comments, please find just one last
question below.
[...]
> > @@ -133,12 +164,36 @@ mvebu_icu_irq_domain_translate(struct irq_domain *d, struct irq_fwspec *fwspec,
> > return -EINVAL;
> > }
> >
> > - /* Mask the type to prevent wrong DT configuration */
> > - *type = fwspec->param[2] & IRQ_TYPE_SENSE_MASK;
> > + /*
> > + * The ICU receives level-interrupts. MSI SEI are
> > + * edge-interrupts while MSI NSR are level-interrupts. Update the type
> > + * accordingly for the parent irqchip.
> > + */
> > + if (msi_data->subset_data->icu_group == ICU_GRP_SEI)
> > + *type = IRQ_TYPE_EDGE_RISING;
>
> That's interesting. How is the resampling done here?
I'm not sure to understand the question. What does 'resampling' means
in such context? MSI SEIs are of type "edge" and use the traditional
MSI signalling infrastructure. I'm asking to be sure not to ignore
something wrong in my code.
>
> >
> > return 0;
> > }
Thanks,
Miqu?l
next prev parent reply other threads:[~2018-08-21 9:08 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-05 12:39 [PATCH v4 00/14] Add System Error Interrupt support to Armada SoCs Miquel Raynal
2018-07-05 12:39 ` [PATCH v4 01/14] genirq/msi: Allow creation of a tree-based irqdomain for platform-msi Miquel Raynal
2018-07-05 12:39 ` [PATCH v4 02/14] dt-bindings/interrupt-controller: fix Marvell ICU length in the example Miquel Raynal
2018-07-05 12:40 ` [PATCH v4 03/14] irqchip/irq-mvebu-icu: fix wrong private data retrieval Miquel Raynal
2018-07-05 12:40 ` [PATCH v4 04/14] irqchip/irq-mvebu-icu: clarify the reset operation of configured interrupts Miquel Raynal
2018-07-05 12:40 ` [PATCH v4 05/14] irqchip/irq-mvebu-icu: disociate ICU and NSR Miquel Raynal
2018-07-05 12:40 ` [PATCH v4 06/14] irqchip/irq-mvebu-icu: support ICU subnodes Miquel Raynal
2018-08-20 14:16 ` Marc Zyngier
2018-07-05 12:40 ` [PATCH v4 07/14] irqchip/irq-mvebu-sei: add new driver for Marvell SEI Miquel Raynal
2018-08-20 14:58 ` Marc Zyngier
2018-07-05 12:40 ` [PATCH v4 08/14] arm64: marvell: enable SEI driver Miquel Raynal
2018-07-05 12:40 ` [PATCH v4 09/14] irqchip/irq-mvebu-icu: add support for System Error Interrupts (SEI) Miquel Raynal
2018-08-20 15:21 ` Marc Zyngier
2018-08-21 9:08 ` Miquel Raynal [this message]
2018-08-21 9:19 ` Marc Zyngier
2018-08-21 10:28 ` Miquel Raynal
2018-08-21 10:37 ` Marc Zyngier
2018-08-21 15:41 ` Miquel Raynal
2018-08-23 11:44 ` Miquel Raynal
2018-07-05 12:40 ` [PATCH v4 10/14] dt-bindings/interrupt-controller: update Marvell ICU bindings Miquel Raynal
2018-07-16 15:27 ` Rob Herring
2018-07-16 16:39 ` Miquel Raynal
2018-07-16 17:44 ` Rob Herring
2018-07-16 19:30 ` Thomas Petazzoni
2018-07-16 19:38 ` Thomas Petazzoni
2018-07-05 12:40 ` [PATCH v4 11/14] dt-bindings/interrupt-controller: add documentation for Marvell SEI controller Miquel Raynal
2018-07-05 12:40 ` [PATCH v4 12/14] arm64: dts: marvell: add AP806 SEI subnode Miquel Raynal
2018-07-16 15:31 ` Rob Herring
2018-07-05 12:40 ` [PATCH v4 13/14] arm64: dts: marvell: use new bindings for CP110 interrupts Miquel Raynal
2018-07-05 12:40 ` [PATCH v4 14/14] arm64: dts: marvell: add CP110 ICU SEI subnode Miquel Raynal
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