Commit 752e021f authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

irqchip/mbigen: Remove platform_msi_create_device_domain() fallback 



Now that ITS provides the MSI parent domain, remove the unused fallback
code.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarAnna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: default avatarShivamurthy Shastri <shivamurthy.shastri@linutronix.de>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240623142235.333333826@linutronix.de
parent 7f2baef0

drivers/irqchip/irq-mbigen.c

+4 −70
Original line number Diff line number Diff line
@@ -180,64 +180,6 @@ static int mbigen_domain_translate(struct irq_domain *d, struct irq_fwspec *fwsp 
	return -EINVAL;

}



/* The following section will go away once ITS provides a MSI parent */



static struct irq_chip mbigen_irq_chip = {

	.name =			"mbigen-v2",

	.irq_mask =		irq_chip_mask_parent,

	.irq_unmask =		irq_chip_unmask_parent,

	.irq_eoi =		mbigen_eoi_irq,

	.irq_set_type =		mbigen_set_type,

	.irq_set_affinity =	irq_chip_set_affinity_parent,

};



static int mbigen_irq_domain_alloc(struct irq_domain *domain,

					unsigned int virq,

					unsigned int nr_irqs,

					void *args)

{

	struct irq_fwspec *fwspec = args;

	irq_hw_number_t hwirq;

	unsigned int type;

	struct mbigen_device *mgn_chip;

	int i, err;



	err = mbigen_domain_translate(domain, fwspec, &hwirq, &type);

	if (err)

		return err;



	err = platform_msi_device_domain_alloc(domain, virq, nr_irqs);

	if (err)

		return err;



	mgn_chip = platform_msi_get_host_data(domain);



	for (i = 0; i < nr_irqs; i++)

		irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i,

				      &mbigen_irq_chip, mgn_chip->base);



	return 0;

}



static void mbigen_irq_domain_free(struct irq_domain *domain, unsigned int virq,

				   unsigned int nr_irqs)

{

	platform_msi_device_domain_free(domain, virq, nr_irqs);

}



static const struct irq_domain_ops mbigen_domain_ops = {

	.translate	= mbigen_domain_translate,

	.alloc		= mbigen_irq_domain_alloc,

	.free		= mbigen_irq_domain_free,

};



static void mbigen_write_msg(struct msi_desc *desc, struct msi_msg *msg)

{

	mbigen_write_msi_msg(irq_get_irq_data(desc->irq), msg);

}



/* End of to be removed section */



static void mbigen_domain_set_desc(msi_alloc_info_t *arg, struct msi_desc *desc)

{

	arg->desc = desc;
@@ -268,22 +210,14 @@ static const struct msi_domain_template mbigen_msi_template = { 
static bool mbigen_create_device_domain(struct device *dev, unsigned int size,

					struct mbigen_device *mgn_chip)

{

	struct irq_domain *domain = dev->msi.domain;



	if (WARN_ON_ONCE(!domain))

	if (WARN_ON_ONCE(!dev->msi.domain))

		return false;



	if (irq_domain_is_msi_parent(domain)) {

	return msi_create_device_irq_domain(dev, MSI_DEFAULT_DOMAIN,

					    &mbigen_msi_template, size,

					    NULL, mgn_chip->base);

}



	/* Remove once ITS provides MSI parent */

	return !!platform_msi_create_device_domain(dev, size, mbigen_write_msg,

						   &mbigen_domain_ops, mgn_chip);

}



static int mbigen_of_create_domain(struct platform_device *pdev,

				   struct mbigen_device *mgn_chip)

{