Hi Marc, On Wed, Jul 6, 2022 at 8:02 AM Marc Zyngier <maz@xxxxxxxxxx> wrote: > > On Sun, 03 Jul 2022 20:40:15 +0100, > Lad Prabhakar <prabhakar.csengg@xxxxxxxxx> 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 > > > > 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) > > Please add this patch as part of the series. > Sure will do. Cheers, Prabhakar
