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authorMarc Zyngier <marc.zyngier@arm.com>2015-10-13 12:51:33 +0100
committerThomas Gleixner <tglx@linutronix.de>2015-10-13 19:01:23 +0200
commitf833f57ff25450b7161798dceaf8575a48d80249 (patch)
treed1d8af957f01065cbfbf76c5f4975a0e90d013fb /drivers/irqchip/irq-imx-gpcv2.c
parent11e4438ee330fab0f216ee7cc1b651cb2ddceb5d (diff)
downloadlinux-f833f57ff25450b7161798dceaf8575a48d80249.tar.bz2
irqchip: Convert all alloc/xlate users from of_node to fwnode
Since we now have a generic data structure to express an interrupt specifier, convert all hierarchical irqchips that are OF based to use a fwnode_handle as part of their alloc and xlate (which becomes translate) callbacks. As most of these drivers have dependencies (they exchange IRQ specifiers), change them all in a single, massive patch... Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Reviewed-and-tested-by: Hanjun Guo <hanjun.guo@linaro.org> Tested-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: <linux-arm-kernel@lists.infradead.org> Cc: Tomasz Nowicki <tomasz.nowicki@linaro.org> Cc: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Cc: Graeme Gregory <graeme@xora.org.uk> Cc: Jake Oshins <jakeo@microsoft.com> Cc: Jiang Liu <jiang.liu@linux.intel.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Link: http://lkml.kernel.org/r/1444737105-31573-6-git-send-email-marc.zyngier@arm.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/irqchip/irq-imx-gpcv2.c')
-rw-r--r--drivers/irqchip/irq-imx-gpcv2.c64
1 files changed, 29 insertions, 35 deletions
diff --git a/drivers/irqchip/irq-imx-gpcv2.c b/drivers/irqchip/irq-imx-gpcv2.c
index 05302cef76dd..15af9a9753e5 100644
--- a/drivers/irqchip/irq-imx-gpcv2.c
+++ b/drivers/irqchip/irq-imx-gpcv2.c
@@ -150,49 +150,42 @@ static struct irq_chip gpcv2_irqchip_data_chip = {
#endif
};
-static int imx_gpcv2_domain_xlate(struct irq_domain *domain,
- struct device_node *controller,
- const u32 *intspec,
- unsigned int intsize,
- unsigned long *out_hwirq,
- unsigned int *out_type)
+static int imx_gpcv2_domain_translate(struct irq_domain *d,
+ struct irq_fwspec *fwspec,
+ unsigned long *hwirq,
+ unsigned int *type)
{
- /* Shouldn't happen, really... */
- if (irq_domain_get_of_node(domain) != controller)
- return -EINVAL;
+ if (is_of_node(fwspec->fwnode)) {
+ if (fwspec->param_count != 3)
+ return -EINVAL;
- /* Not GIC compliant */
- if (intsize != 3)
- return -EINVAL;
+ /* No PPI should point to this domain */
+ if (fwspec->param[0] != 0)
+ return -EINVAL;
- /* No PPI should point to this domain */
- if (intspec[0] != 0)
- return -EINVAL;
+ *hwirq = fwspec->param[1];
+ *type = fwspec->param[2];
+ return 0;
+ }
- *out_hwirq = intspec[1];
- *out_type = intspec[2];
- return 0;
+ return -EINVAL;
}
static int imx_gpcv2_domain_alloc(struct irq_domain *domain,
unsigned int irq, unsigned int nr_irqs,
void *data)
{
- struct of_phandle_args *args = data;
- struct of_phandle_args parent_args;
+ struct irq_fwspec *fwspec = data;
+ struct irq_fwspec parent_fwspec;
irq_hw_number_t hwirq;
+ unsigned int type;
+ int err;
int i;
- /* Not GIC compliant */
- if (args->args_count != 3)
- return -EINVAL;
-
- /* No PPI should point to this domain */
- if (args->args[0] != 0)
- return -EINVAL;
+ err = imx_gpcv2_domain_translate(domain, fwspec, &hwirq, &type);
+ if (err)
+ return err;
- /* Can't deal with this */
- hwirq = args->args[1];
if (hwirq >= GPC_MAX_IRQS)
return -EINVAL;
@@ -201,15 +194,16 @@ static int imx_gpcv2_domain_alloc(struct irq_domain *domain,
&gpcv2_irqchip_data_chip, domain->host_data);
}
- parent_args = *args;
- parent_args.np = irq_domain_get_of_node(domain->parent);
- return irq_domain_alloc_irqs_parent(domain, irq, nr_irqs, &parent_args);
+ parent_fwspec = *fwspec;
+ parent_fwspec.fwnode = domain->parent->fwnode;
+ return irq_domain_alloc_irqs_parent(domain, irq, nr_irqs,
+ &parent_fwspec);
}
static struct irq_domain_ops gpcv2_irqchip_data_domain_ops = {
- .xlate = imx_gpcv2_domain_xlate,
- .alloc = imx_gpcv2_domain_alloc,
- .free = irq_domain_free_irqs_common,
+ .translate = imx_gpcv2_domain_translate,
+ .alloc = imx_gpcv2_domain_alloc,
+ .free = irq_domain_free_irqs_common,
};
static int __init imx_gpcv2_irqchip_init(struct device_node *node,