From: prabhakar.csengg@gmail.com
To: Marc Zyngier <maz@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Linus Walleij <linus.walleij@linaro.org>,
Bartosz Golaszewski <brgl@bgdev.pl>,
Philipp Zabel <p.zabel@pengutronix.de>,
devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
linux-gpio@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
Prabhakar <prabhakar.csengg@gmail.com>,
Biju Das <biju.das.jz@bp.renesas.com>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: [PATCH v8 0/6] Renesas RZ/G2L IRQC support
Date: Thu, 7 Jul 2022 19:23:08 +0100 [thread overview]
Message-ID: <20220707182314.66610-1-prabhakar.mahadev-lad.rj@bp.renesas.com> (raw)
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Hi All,
The RZ/G2L Interrupt Controller is a front-end for the GIC found on
Renesas RZ/G2L SoC's with below pins:
- IRQ sense select for 8 external interrupts, mapped to 8 GIC SPI
interrupts
- GPIO pins used as external interrupt input pins out of GPIOINT0-122 a
maximum of only 32 can be mapped to 32 GIC SPI interrupts,
- NMI edge select.
_____________
| GIC |
| ________ |
____________ | | | |
NMI --------------------------------->| | SPI0-479 | | GIC-600| |
_______ | |------------>| | |
| | | | PPI16-31 | | | |
| | IRQ0-IRQ7 | IRQC |------------>| | |
P0_P48_4 --->| GPIO |---------------->| | | |________| |
| |GPIOINT0-122 | | | |
| |---------------->| TINT0-31 | | |
|______| |__________| |____________|
The proposed patches add hierarchical IRQ domain, one in IRQC driver and
another in pinctrl driver. Upon interrupt requests map the interrupt to
GIC. Out of GPIOINT0-122 only 32 can be mapped to GIC SPI, this mapping is
handled by the pinctrl and IRQC driver.
Cheers,
Prabhakar
v7->v8
* Fixed return value in case of devm_reset_control_get_exclusive() failure.
* Included patch [0] from Marc ([0] https://git.kernel.org/pub/scm/linux/kernel/
git/maz/arm-platforms.git/patch/?id=178b7e21459e9a7e2a2c369711ef0cc9b1cfbcd7)
v6->v7:
* Used devm_reset_control_get_exclusive() instead of
devm_reset_control_get_exclusive_by_index()
* Included RB tag from Linus for patch 5/5
* Switched to newer version of populate_parent_alloc_arg() (patch depends
on https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/
patch/?id=178b7e21459e9a7e2a2c369711ef0cc9b1cfbcd7)
v5->v6:
* Fixed review comments pointed by Marc
* Included Ack from Rob
v4->v5:
* Updated commit message for patch 3/5
* Dropped interrupt-parent from and included RB tag from Geert
for patch 4/5
* Implemented init_valid_mask() callback
* Dropped ngirq patch from previous series
* Dropped patches 4/7 and 5/7 from previous patch series will handle
it separately.
v3->v4:
* Updated description for interrupts-cells property in patch #1
* Dropped the patch which overriding free callback in gpiolib
* Used devm helpers in patch#2
* Patch #4, #5 and #6 are newly added
* In patch #7 dropped using gpio offset as hwirq
* Implemented immutable GPIO in patch #7
* Implemented child_offset_to_irq() callback in patch #7
v2->v3:
* Updated description for interrupts-cells property in patch #1
* Included RB tag from Geert for binding patch
* Fixed review comments pointed by Geert, Biju and Sergei.
v1->v2:
* Included RB tag from Rob
* Fixed review comments pointed by Geert
* included GPIO driver changes
RFCV4 -> V1:
* Used unevaluatedProperties.
* Altered the sequence of reg property
* Set the parent type
* Used raw_spin_lock() instead of raw_spin_lock_irqsave()
* Simplified parsing IRQ map.
* Will send the GPIO and pinctrl changes as part of separate series
RFC v4:
* Used locking while RMW
* Now using interrupts property instead of interrupt-map
* Patch series depends on [0]
* Updated binding doc
* Fixed comments pointed by Andy
[0] https://patchwork.kernel.org/project/linux-renesas-soc/patch/
20220316200633.28974-1-prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx/
RFC v3:
-> Re-structured the driver as a hierarchical irq domain instead of chained
-> made use of IRQCHIP_* macros
-> dropped locking
-> Added support for IRQ0-7 interrupts
-> Introduced 2 new patches for GPIOLIB
-> Switched to using GPIOLIB for irqdomains in pinctrl
RFC v2: https://patchwork.kernel.org/project/linux-renesas-soc/cover/
20210921193028.13099-1-prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx/
RFC v1: https://patchwork.kernel.org/project/linux-renesas-soc/cover/
20210803175109.1729-1-prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx/
Lad Prabhakar (5):
dt-bindings: interrupt-controller: Add Renesas RZ/G2L Interrupt
Controller
irqchip: Add RZ/G2L IA55 Interrupt Controller driver
gpio: gpiolib: Allow free() callback to be overridden
dt-bindings: pinctrl: renesas,rzg2l-pinctrl: Document the properties
to handle GPIO IRQ
pinctrl: renesas: pinctrl-rzg2l: Add IRQ domain to handle GPIO
interrupt
Marc Zyngier (1):
gpio: Remove dynamic allocation from populate_parent_alloc_arg()
.../renesas,rzg2l-irqc.yaml | 133 ++++++
.../pinctrl/renesas,rzg2l-pinctrl.yaml | 15 +
drivers/gpio/gpio-msc313.c | 15 +-
drivers/gpio/gpio-tegra.c | 15 +-
drivers/gpio/gpio-tegra186.c | 15 +-
drivers/gpio/gpio-thunderx.c | 15 +-
drivers/gpio/gpio-visconti.c | 15 +-
drivers/gpio/gpiolib.c | 51 ++-
drivers/irqchip/Kconfig | 8 +
drivers/irqchip/Makefile | 1 +
drivers/irqchip/irq-renesas-rzg2l.c | 393 ++++++++++++++++++
drivers/pinctrl/qcom/pinctrl-spmi-gpio.c | 15 +-
drivers/pinctrl/renesas/pinctrl-rzg2l.c | 233 +++++++++++
include/linux/gpio/driver.h | 42 +-
14 files changed, 862 insertions(+), 104 deletions(-)
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml
create mode 100644 drivers/irqchip/irq-renesas-rzg2l.c
--
2.25.1
next reply other threads:[~2022-07-07 18:24 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-07 18:23 prabhakar.csengg [this message]
2022-07-07 18:23 ` [PATCH v8 1/6] gpio: Remove dynamic allocation from populate_parent_alloc_arg() prabhakar.csengg
2022-07-08 15:51 ` Bartosz Golaszewski
2022-07-10 8:42 ` [irqchip: irq/irqchip-next] " irqchip-bot for Marc Zyngier
2022-07-07 18:23 ` [PATCH v8 2/6] dt-bindings: interrupt-controller: Add Renesas RZ/G2L Interrupt Controller prabhakar.csengg
2022-07-10 8:42 ` [irqchip: irq/irqchip-next] " irqchip-bot for Lad Prabhakar
2022-07-07 18:23 ` [PATCH v8 3/6] irqchip: Add RZ/G2L IA55 Interrupt Controller driver prabhakar.csengg
2022-07-10 8:42 ` [irqchip: irq/irqchip-next] " irqchip-bot for Lad Prabhakar
2022-07-07 18:23 ` [PATCH v8 4/6] gpio: gpiolib: Allow free() callback to be overridden prabhakar.csengg
2022-07-08 15:52 ` Bartosz Golaszewski
2022-07-10 8:52 ` Marc Zyngier
2022-07-10 8:42 ` [irqchip: irq/irqchip-next] " irqchip-bot for Lad Prabhakar
2022-07-07 18:23 ` [PATCH v8 5/6] dt-bindings: pinctrl: renesas,rzg2l-pinctrl: Document the properties to handle GPIO IRQ prabhakar.csengg
2022-07-10 8:42 ` [irqchip: irq/irqchip-next] " irqchip-bot for Lad Prabhakar
2022-07-11 11:35 ` [PATCH v8 5/6] " Linus Walleij
2022-07-11 11:50 ` Geert Uytterhoeven
2022-07-11 12:43 ` Lad, Prabhakar
2022-07-07 18:23 ` [PATCH v8 6/6] pinctrl: renesas: pinctrl-rzg2l: Add IRQ domain to handle GPIO interrupt prabhakar.csengg
2022-07-10 8:42 ` [irqchip: irq/irqchip-next] " irqchip-bot for Lad Prabhakar
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=20220707182314.66610-1-prabhakar.mahadev-lad.rj@bp.renesas.com \
--to=prabhakar.csengg@gmail.com \
--cc=biju.das.jz@bp.renesas.com \
--cc=brgl@bgdev.pl \
--cc=devicetree@vger.kernel.org \
--cc=geert+renesas@glider.be \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linus.walleij@linaro.org \
--cc=linux-gpio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-renesas-soc@vger.kernel.org \
--cc=maz@kernel.org \
--cc=p.zabel@pengutronix.de \
--cc=prabhakar.mahadev-lad.rj@bp.renesas.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.