linux-kernel - [PATCH 0/2] irqchip/mchp-eic: add driver for Microchip EIC

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Date:   Tue, 2 Mar 2021 12:28:44 +0200
From:   Claudiu Beznea <claudiu.beznea@...rochip.com>
To:     <tglx@...utronix.de>, <maz@...nel.org>, <robh+dt@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <nicolas.ferre@...rochip.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>
Subject: [PATCH 0/2] irqchip/mchp-eic: add driver for Microchip EIC

Hi,

This patch adds support for Microchip External Interrupt Controller
present on SAMA7G5. The controller supports for 2 external interrupt
lines, glitch filter capabilities and is connected to GIC as follows:

pinX   +------+ EXT_IRQ0 +------+ int 153 (for pinX) +------+
------>|      |--------->|      |------------------->|      |
pinY   | PIO  | EXT_IRQ1 | EIC  | int 154 (for pinY) | GIC  |
------>|      |--------->|      |------------------->|      |
       +------+          +------+                    +------+

where PIO is the pin controller.

Thank you,
Claudiu Beznea

Claudiu Beznea (2):
  dt-bindings: mchp-eic: add bindings
  irqchip/mchp-eic: add support

 .../interrupt-controller/mchp,eic.yaml        |  74 ++++
 MAINTAINERS                                   |   6 +
 drivers/irqchip/Kconfig                       |   7 +
 drivers/irqchip/Makefile                      |   1 +
 drivers/irqchip/irq-mchp-eic.c                | 350 ++++++++++++++++++
 5 files changed, 438 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/mchp,eic.yaml
 create mode 100644 drivers/irqchip/irq-mchp-eic.c

-- 
2.25.1