.../renesas,rzg2l-irqc.yaml | 133 ++++++ .../pinctrl/renesas,rzg2l-pinctrl.yaml | 15 + drivers/gpio/gpiolib.c | 9 +- drivers/irqchip/Kconfig | 8 + drivers/irqchip/Makefile | 1 + drivers/irqchip/irq-renesas-rzg2l.c | 425 ++++++++++++++++++ drivers/pinctrl/renesas/pinctrl-rzg2l.c | 236 ++++++++++ 7 files changed, 824 insertions(+), 3 deletions(-) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml create mode 100644 drivers/irqchip/irq-renesas-rzg2l.c
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
Changes for 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.
Changes for 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
Changes for 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.
Changes for v1->v2:
* Included RB tag from Rob
* Fixed review comments pointed by Geert
* included GPIO driver changes
Changes for 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
Changes for 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/
Changes for 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
.../renesas,rzg2l-irqc.yaml | 133 ++++++
.../pinctrl/renesas,rzg2l-pinctrl.yaml | 15 +
drivers/gpio/gpiolib.c | 9 +-
drivers/irqchip/Kconfig | 8 +
drivers/irqchip/Makefile | 1 +
drivers/irqchip/irq-renesas-rzg2l.c | 425 ++++++++++++++++++
drivers/pinctrl/renesas/pinctrl-rzg2l.c | 236 ++++++++++
7 files changed, 824 insertions(+), 3 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
Hi Marc On Mon, May 23, 2022 at 6:42 PM Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote: > > 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 > > Changes for 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. > > Changes for 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 > > Changes for 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. > > Changes for v1->v2: > * Included RB tag from Rob > * Fixed review comments pointed by Geert > * included GPIO driver changes > > Changes for 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 > > Changes for 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/ > > Changes for 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 > > .../renesas,rzg2l-irqc.yaml | 133 ++++++ > .../pinctrl/renesas,rzg2l-pinctrl.yaml | 15 + > drivers/gpio/gpiolib.c | 9 +- > drivers/irqchip/Kconfig | 8 + > drivers/irqchip/Makefile | 1 + > drivers/irqchip/irq-renesas-rzg2l.c | 425 ++++++++++++++++++ > drivers/pinctrl/renesas/pinctrl-rzg2l.c | 236 ++++++++++ > 7 files changed, 824 insertions(+), 3 deletions(-) > create mode 100644 Documentation/devicetree/bindings/interrupt-controller/renesas,rzg2l-irqc.yaml > create mode 100644 drivers/irqchip/irq-renesas-rzg2l.c > Gentle ping. Are you happy with this series? Cheers, Prabhakar
© 2016 - 2024 Red Hat, Inc.