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Merge tag 'irqchip-core-4.1-3' of git://git.infradead.org/users/jcooper/linux into irq/core

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irqchip core change for v4.1 (round 3) from Jason Cooper

 Purge the gic_arch_extn hacks and abuse by using the new stacked domains

   NOTE: Due to the nature of these changes, patches crossing subsystems have
         been kept together in their own branches.

    - tegra
       - Handle the LIC properly

    - omap
       - Convert crossbar to stacked domains
       - kill arm,routable-irqs in GIC binding

    - exynos
       - Convert PMU wakeup to stacked domains

    - shmobile, ux500, zynq (irq_set_wake branch)
       - Switch from abusing gic_arch_extn to using gic_set_irqchip_flags
This commit is contained in:
Thomas Gleixner
2015-04-11 11:17:28 +02:00
parent 425b655ce4 a01e7b3258
commit b7dccbea6b
52 changed files with 1034 additions and 540 deletions
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135
arch/arm/mach-exynos/suspend.c
View File

@@ -18,7 +18,9 @@
#include <linux/syscore_ops.h>
#include <linux/cpu_pm.h>
#include <linux/io.h>
#include <linux/irqchip/arm-gic.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/of_address.h>
#include <linux/err.h>
#include <linux/regulator/machine.h>
@@ -43,8 +45,8 @@
#define EXYNOS5420_CPU_STATE 0x28
/**
* struct exynos_wkup_irq - Exynos GIC to PMU IRQ mapping
* @hwirq: Hardware IRQ signal of the GIC
* struct exynos_wkup_irq - PMU IRQ to mask mapping
* @hwirq: Hardware IRQ signal of the PMU
* @mask: Mask in PMU wake-up mask register
*/
struct exynos_wkup_irq {
@@ -93,14 +95,14 @@ static const struct exynos_wkup_irq exynos3250_wkup_irq[] = {
};
static const struct exynos_wkup_irq exynos4_wkup_irq[] = {
{ 76, BIT(1) }, /* RTC alarm */
{ 77, BIT(2) }, /* RTC tick */
{ 44, BIT(1) }, /* RTC alarm */
{ 45, BIT(2) }, /* RTC tick */
{ /* sentinel */ },
};
static const struct exynos_wkup_irq exynos5250_wkup_irq[] = {
{ 75, BIT(1) }, /* RTC alarm */
{ 76, BIT(2) }, /* RTC tick */
{ 43, BIT(1) }, /* RTC alarm */
{ 44, BIT(2) }, /* RTC tick */
{ /* sentinel */ },
};
@@ -167,6 +169,113 @@ static int exynos_irq_set_wake(struct irq_data *data, unsigned int state)
return -ENOENT;
}
static struct irq_chip exynos_pmu_chip = {
.name = "PMU",
.irq_eoi = irq_chip_eoi_parent,
.irq_mask = irq_chip_mask_parent,
.irq_unmask = irq_chip_unmask_parent,
.irq_retrigger = irq_chip_retrigger_hierarchy,
.irq_set_wake = exynos_irq_set_wake,
#ifdef CONFIG_SMP
.irq_set_affinity = irq_chip_set_affinity_parent,
#endif
};
static int exynos_pmu_domain_xlate(struct irq_domain *domain,
struct device_node *controller,
const u32 *intspec,
unsigned int intsize,
unsigned long *out_hwirq,
unsigned int *out_type)
{
if (domain->of_node != controller)
return -EINVAL; /* Shouldn't happen, really... */
if (intsize != 3)
return -EINVAL; /* Not GIC compliant */
if (intspec[0] != 0)
return -EINVAL; /* No PPI should point to this domain */
*out_hwirq = intspec[1];
*out_type = intspec[2];
return 0;
}
static int exynos_pmu_domain_alloc(struct irq_domain *domain,
unsigned int virq,
unsigned int nr_irqs, void *data)
{
struct of_phandle_args *args = data;
struct of_phandle_args parent_args;
irq_hw_number_t hwirq;
int i;
if (args->args_count != 3)
return -EINVAL; /* Not GIC compliant */
if (args->args[0] != 0)
return -EINVAL; /* No PPI should point to this domain */
hwirq = args->args[1];
for (i = 0; i < nr_irqs; i++)
irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i,
&exynos_pmu_chip, NULL);
parent_args = *args;
parent_args.np = domain->parent->of_node;
return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, &parent_args);
}
static struct irq_domain_ops exynos_pmu_domain_ops = {
.xlate = exynos_pmu_domain_xlate,
.alloc = exynos_pmu_domain_alloc,
.free = irq_domain_free_irqs_common,
};
static int __init exynos_pmu_irq_init(struct device_node *node,
struct device_node *parent)
{
struct irq_domain *parent_domain, *domain;
if (!parent) {
pr_err("%s: no parent, giving up\n", node->full_name);
return -ENODEV;
}
parent_domain = irq_find_host(parent);
if (!parent_domain) {
pr_err("%s: unable to obtain parent domain\n", node->full_name);
return -ENXIO;
}
pmu_base_addr = of_iomap(node, 0);
if (!pmu_base_addr) {
pr_err("%s: failed to find exynos pmu register\n",
node->full_name);
return -ENOMEM;
}
domain = irq_domain_add_hierarchy(parent_domain, 0, 0,
node, &exynos_pmu_domain_ops,
NULL);
if (!domain) {
iounmap(pmu_base_addr);
return -ENOMEM;
}
return 0;
}
#define EXYNOS_PMU_IRQ(symbol, name) OF_DECLARE_2(irqchip, symbol, name, exynos_pmu_irq_init)
EXYNOS_PMU_IRQ(exynos3250_pmu_irq, "samsung,exynos3250-pmu");
EXYNOS_PMU_IRQ(exynos4210_pmu_irq, "samsung,exynos4210-pmu");
EXYNOS_PMU_IRQ(exynos4212_pmu_irq, "samsung,exynos4212-pmu");
EXYNOS_PMU_IRQ(exynos4412_pmu_irq, "samsung,exynos4412-pmu");
EXYNOS_PMU_IRQ(exynos4415_pmu_irq, "samsung,exynos4415-pmu");
EXYNOS_PMU_IRQ(exynos5250_pmu_irq, "samsung,exynos5250-pmu");
EXYNOS_PMU_IRQ(exynos5420_pmu_irq, "samsung,exynos5420-pmu");
static int exynos_cpu_do_idle(void)
{
/* issue the standby signal into the pm unit. */
@@ -615,17 +724,19 @@ static struct syscore_ops exynos_pm_syscore_ops;
void __init exynos_pm_init(void)
{
const struct of_device_id *match;
struct device_node *np;
u32 tmp;
of_find_matching_node_and_match(NULL, exynos_pmu_of_device_ids, &match);
if (!match) {
np = of_find_matching_node_and_match(NULL, exynos_pmu_of_device_ids, &match);
if (!np) {
pr_err("Failed to find PMU node\n");
return;
}
pm_data = (struct exynos_pm_data *) match->data;
/* Platform-specific GIC callback */
gic_arch_extn.irq_set_wake = exynos_irq_set_wake;
if (WARN_ON(!of_find_property(np, "interrupt-controller", NULL)))
pr_warn("Outdated DT detected, suspend/resume will NOT work\n");
pm_data = (struct exynos_pm_data *) match->data;
/* All wakeup disable */
tmp = pmu_raw_readl(S5P_WAKEUP_MASK);