From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Thomas Gleixner <tglx@linutronix.de>,
Jason Cooper <jason@lakedaemon.net>,
Marc Zyngier <marc.zyngier@arm.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Simon Horman <horms@verge.net.au>,
Magnus Damm <magnus.damm@gmail.com>,
Chris Brandt <chris.brandt@renesas.com>
Cc: devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
linux-kernel@vger.kernel.org,
Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH v2 0/5] ARM: rskrza1: Add RZ/A1 IRQC and input switches
Date: Tue, 30 Apr 2019 14:12:49 +0200 [thread overview]
Message-ID: <20190430121254.3737-1-geert+renesas@glider.be> (raw)
Hi all,
Unlike on most other Renesas SoCs, the GPIO controller block on RZ/A1
and RZ/A2 SoCs lack interrupt functionality. While the GPIOs can be
routed to the GIC as pin interrupts, this is of limited use, as the
PL390 or GIC-400 supports rising edge and high-level interrupts only.
Fortunately RZ/A1 and RZ/A2 SoCs contain a small front-end for the GIC,
allowing to use up to 8 external interrupts, with configurable sense
select.
Hence this patch series adds DT bindings and a driver for this
front-end, adds a device node for it in the RZ/A1H DTS, and uses it to
enable support for the 3 input switches on the Renesas RSK+RZA1
development board.
Changes compared to v1:
- Add Reviewed-by,
- Replace gic_spi_base in OF match data by renesas,gic-spi-base in DT,
- Document RZ/A2M,
- Use u16 for register values,
- Use relaxed I/O accessors,
- Use "rza1-irqc" as irq_chip class name,
- Enable driver on RZ/A2M.
Dependencies:
- Patch 3 depends on patch 2,
- Patch 4 can be applied as soon as the DT bindings in patch 1 have
been accepted,
- Patch 5 depends on patch 4.
Upstream strategy:
- Patches 1-2 are intended to be applied to the irqchip tree,
- Patches 3-5 are meant for the Renesas tree.
This has been tested on RSK+RZA1 with evtest and s2ram wake-up.
I have verified proper operation of low-level and rising/falling sense
select, too.
Thanks!
Geert Uytterhoeven (5):
dt-bindings: interrupt-controller: Add Renesas RZ/A1 Interrupt
Controller
irqchip: Add Renesas RZ/A1 Interrupt Controller driver
soc: renesas: Enable RZ/A1 IRQC on RZ/A1H and RZ/A2M
ARM: dts: r7s72100: Add IRQC device node
ARM: dts: rskrza1: Add input switches
.../renesas,rza1-irqc.txt | 30 +++
arch/arm/boot/dts/r7s72100-rskrza1.dts | 38 +++
arch/arm/boot/dts/r7s72100.dtsi | 9 +
drivers/irqchip/Kconfig | 4 +
drivers/irqchip/Makefile | 1 +
drivers/irqchip/irq-renesas-rza1.c | 235 ++++++++++++++++++
drivers/soc/renesas/Kconfig | 4 +-
7 files changed, 320 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/renesas,rza1-irqc.txt
create mode 100644 drivers/irqchip/irq-renesas-rza1.c
--
2.17.1
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
next reply other threads:[~2019-04-30 12:13 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-30 12:12 Geert Uytterhoeven [this message]
2019-04-30 12:12 ` [PATCH v2 1/5] dt-bindings: interrupt-controller: Add Renesas RZ/A1 Interrupt Controller Geert Uytterhoeven
2019-04-30 15:02 ` Rob Herring
2019-04-30 15:24 ` Geert Uytterhoeven
2019-04-30 15:34 ` Marc Zyngier
2019-04-30 20:25 ` Rob Herring
2019-05-01 7:16 ` Geert Uytterhoeven
2019-05-01 19:38 ` Rob Herring
2019-05-02 10:01 ` Geert Uytterhoeven
2019-05-02 16:50 ` Rob Herring
2019-05-02 18:55 ` Geert Uytterhoeven
2019-05-02 14:02 ` Marc Zyngier
2019-05-02 16:33 ` Rob Herring
2019-04-30 12:12 ` [PATCH v2 2/5] irqchip: Add Renesas RZ/A1 Interrupt Controller driver Geert Uytterhoeven
2019-04-30 13:49 ` Chris Brandt
2019-04-30 12:12 ` [PATCH v2 3/5] soc: renesas: Enable RZ/A1 IRQC on RZ/A1H and RZ/A2M Geert Uytterhoeven
2019-04-30 12:12 ` [PATCH v2 4/5] ARM: dts: r7s72100: Add IRQC device node Geert Uytterhoeven
2019-04-30 12:12 ` [PATCH v3 5/5] ARM: dts: rskrza1: Add input switches Geert Uytterhoeven
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190430121254.3737-1-geert+renesas@glider.be \
--to=geert+renesas@glider.be \
--cc=chris.brandt@renesas.com \
--cc=devicetree@vger.kernel.org \
--cc=horms@verge.net.au \
--cc=jason@lakedaemon.net \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-renesas-soc@vger.kernel.org \
--cc=magnus.damm@gmail.com \
--cc=marc.zyngier@arm.com \
--cc=mark.rutland@arm.com \
--cc=robh+dt@kernel.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).