[V5,0/2] irqchip: add NXP INTMUX interrupt controller

Message

Joakim Zhang Jan. 15, 2020, 5:04 a.m. UTC

This patch set adds driver for NXP INTMUX interrupt controller.

ChangeLogs:
V4->V5:
	*get number of channels by platform_irq_count() instead of
	'fsl,intmux_chans' property
	*update binding files and remove 'fsl,intmux_chans' property.

V3->V4:
	*set IRQ_TYPE_LEVEL_HIGH flag in .xlate callback.
	*fix comment format.
	*use an intermediate variable for irq_domain_add_linear().
	*disable interrupts before enabling chained interrupt.
	*disable interrupt in imx_remove() for level interrupt.
	*convert binding to DT schema.

V2->V3:
	*impletement .xlate and .select callback.

V1->V2:
	*squash patches:
		drivers/irqchip: enable INTMUX interrupt controller driver
 		drivers/irqchip: add NXP INTMUX interrupt multiplexer support
	*remove properity "fsl,intmux_chans", only support channel 0 by
	default.
	*delete two unused macros.
	*align the various field in struct intmux_data.
	*turn to spin lock _irqsave version.
	*delete struct intmux_irqchip_data.
	*disable interrupt in probe stage and clear pending status in remove
	stage.

Joakim Zhang (2):
  dt-bindings/irq: add binding for NXP INTMUX interrupt multiplexer
  drivers/irqchip: add NXP INTMUX interrupt multiplexer support

 .../interrupt-controller/fsl,intmux.yaml      |  67 ++++
 drivers/irqchip/Kconfig                       |   6 +
 drivers/irqchip/Makefile                      |   1 +
 drivers/irqchip/irq-imx-intmux.c              | 309 ++++++++++++++++++
 4 files changed, 383 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/fsl,intmux.yaml
 create mode 100644 drivers/irqchip/irq-imx-intmux.c