These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / arch / arm / mach-exynos / suspend.c

diff --git a/kernel/arch/arm/mach-exynos/suspend.c b/kernel/arch/arm/mach-exynos/suspend.c
index 7d23ce0..c169cc3 100644 (file)
--- a/kernel/arch/arm/mach-exynos/suspend.c
+++ b/kernel/arch/arm/mach-exynos/suspend.c
@@ -19,6 +19,7 @@
 #include <linux/cpu_pm.h>
 #include <linux/io.h>
 #include <linux/irq.h>
+#include <linux/irqchip.h>
 #include <linux/irqdomain.h>
 #include <linux/of_address.h>
 #include <linux/err.h>
@@ -32,13 +33,11 @@
 #include <asm/suspend.h>
 
 #include <plat/pm-common.h>
-#include <plat/regs-srom.h>
 
 #include "common.h"
-#include "regs-pmu.h"
 #include "exynos-pmu.h"
-
-#define S5P_CHECK_SLEEP 0x00000BAD
+#include "regs-pmu.h"
+#include "regs-srom.h"
 
 #define REG_TABLE_END (-1U)
 
@@ -179,54 +178,57 @@ static struct irq_chip exynos_pmu_chip = {
 #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)
+static int exynos_pmu_domain_translate(struct irq_domain *d,
+                                      struct irq_fwspec *fwspec,
+                                      unsigned long *hwirq,
+                                      unsigned int *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 */
+       if (is_of_node(fwspec->fwnode)) {
+               if (fwspec->param_count != 3)
+                       return -EINVAL;
 
-       *out_hwirq = intspec[1];
-       *out_type = intspec[2];
-       return 0;
+               /* No PPI should point to this domain */
+               if (fwspec->param[0] != 0)
+                       return -EINVAL;
+
+               *hwirq = fwspec->param[1];
+               *type = fwspec->param[2];
+               return 0;
+       }
+
+       return -EINVAL;
 }
 
 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;
+       struct irq_fwspec *fwspec = data;
+       struct irq_fwspec parent_fwspec;
        irq_hw_number_t hwirq;
        int i;
 
-       if (args->args_count != 3)
+       if (fwspec->param_count != 3)
                return -EINVAL; /* Not GIC compliant */
-       if (args->args[0] != 0)
+       if (fwspec->param[0] != 0)
                return -EINVAL; /* No PPI should point to this domain */
 
-       hwirq = args->args[1];
+       hwirq = fwspec->param[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);
+       parent_fwspec = *fwspec;
+       parent_fwspec.fwnode = domain->parent->fwnode;
+       return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs,
+                                           &parent_fwspec);
 }
 
-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 const struct irq_domain_ops exynos_pmu_domain_ops = {
+       .translate      = exynos_pmu_domain_translate,
+       .alloc          = exynos_pmu_domain_alloc,
+       .free           = irq_domain_free_irqs_common,
 };
 
 static int __init exynos_pmu_irq_init(struct device_node *node,
@@ -264,7 +266,7 @@ static int __init exynos_pmu_irq_init(struct device_node *node,
        return 0;
 }
 
-#define EXYNOS_PMU_IRQ(symbol, name)   OF_DECLARE_2(irqchip, symbol, name, exynos_pmu_irq_init)
+#define EXYNOS_PMU_IRQ(symbol, name)   IRQCHIP_DECLARE(symbol, name, exynos_pmu_irq_init)
 
 EXYNOS_PMU_IRQ(exynos3250_pmu_irq, "samsung,exynos3250-pmu");
 EXYNOS_PMU_IRQ(exynos4210_pmu_irq, "samsung,exynos4210-pmu");
@@ -311,13 +313,7 @@ static int exynos5420_cpu_suspend(unsigned long arg)
 
        if (IS_ENABLED(CONFIG_EXYNOS5420_MCPM)) {
                mcpm_set_entry_vector(cpu, cluster, exynos_cpu_resume);
-
-               /*
-                * Residency value passed to mcpm_cpu_suspend back-end
-                * has to be given clear semantics. Set to 0 as a
-                * temporary value.
-                */
-               mcpm_cpu_suspend(0);
+               mcpm_cpu_suspend();
        }
 
        pr_info("Failed to suspend the system\n");
@@ -337,7 +333,7 @@ static void exynos_pm_enter_sleep_mode(void)
 {
        /* Set value of power down register for sleep mode */
        exynos_sys_powerdown_conf(SYS_SLEEP);
-       pmu_raw_writel(S5P_CHECK_SLEEP, S5P_INFORM1);
+       pmu_raw_writel(EXYNOS_SLEEP_MAGIC, S5P_INFORM1);
 }
 
 static void exynos_pm_prepare(void)