zara/zephyr - zephyr - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Laurentiu Mihalcea	202794273d	drivers: intc: irqstr: add PM support Add support for PM. The strategy is as follows: 1) For level 1 interrupts: don't care, these don't require the PM domain of irqsteer to be turned on since they are, well, direct. 2) For level 2 interrupts: use the reference count of the dispatchers. Upon doing a get() on a dispatcher with its reference count set to 0, before enabling the IRQ (meaning accessing the reg. space) increment the reference count of the irqstr device (which will result in the PM domain being enabled if 0). Upon doin a put() on a dispatcher with its reference count set to 1, after disabling the IRQ (meaning accessing the reg. space) decrement the reference count of the irqstr device (which will result in the PM domain being disabled if 0). In summary, the PM domain of the device will be enabled if at least one dispatcher is in use. On the other hand, the PM domain of the device will be disabled if there's no dispatchers in use (assuming there's no other dependencies). Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>	9 months ago
Laurentiu Mihalcea	c7be48aae4	drivers: intc: irqstr: manage dispatchers dynamically Currently, all dispatcher interrupts are enabled during the driver init() function, which will cause a bus fault unless the PM domain associated with irqsteer is powered on. Since PM will be done during irq_enable()/irq_disable(), add support for dynamically enabling/disabling dispatchers. This way, the reg. space of the dispatchers will be accessed when the PM domain is powered on. Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>	9 months ago
Laurentiu Mihalcea	d274cabf83	drivers: intc: irqstr: add reference count for IRQs Currently, shared interrupts pose a big problem because irq_disable() doesn't keep track of the number of clients using that interrupt line. As such, add a reference count mechanism which will stop the interrupt from being disabled if there's still clients using it. Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>	9 months ago
Yong Cong Sin	5d9e266d13	drivers: interrupt_controller: irq_steer: use new multilevel irq impl Update the NXP's irq_steer driver to use the new multi-level interrupt implementation. Signed-off-by: Yong Cong Sin <ycsin@meta.com>	1 year ago
Daniel Leung	6d5e0c25a6	xtensa: rename z_xtensa_irq to simple xtensa_irq This gets rid of the z_ prefix. Note that z_xt_*() are being used by the HAL so they cannot be renamed. Signed-off-by: Daniel Leung <daniel.leung@intel.com>	2 years ago
Laurentiu Mihalcea	fd8ac9e6cd	drivers: interrupt_controller: Add driver for NXP's IRQ_STEER IP This commit introduces a new interrupt controller driver used for NXP's IRQ_STEER IP. Apart from introducing the driver itself, this commit contains the following changes: 1) Switch i.MX8MP to using the XTENSA core interrupt controller instead of the dummy irqsteer one. * this is required because the binding for the irqsteer driver is no longer a dummy one (since it's being used by the irqsteer driver). As such, to avoid having problems, switch to using another dummy binding. 2) Modify the irqsteer dummy binding such that it serves the IRQ_STEER driver's needs. Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>	2 years ago