diff options
Diffstat (limited to 'arch/arm/mach-omap2/omap-wakeupgen.c')
| -rw-r--r-- | arch/arm/mach-omap2/omap-wakeupgen.c | 59 |
1 files changed, 45 insertions, 14 deletions
diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c index 33ed5d53fa45..a66b1dc61571 100644 --- a/arch/arm/mach-omap2/omap-wakeupgen.c +++ b/arch/arm/mach-omap2/omap-wakeupgen.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * OMAP WakeupGen Source file * @@ -10,10 +11,6 @@ * * Copyright (C) 2011 Texas Instruments, Inc. * Santosh Shilimkar <santosh.shilimkar@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/kernel.h> @@ -50,6 +47,9 @@ #define OMAP4_NR_BANKS 4 #define OMAP4_NR_IRQS 128 +#define SYS_NIRQ1_EXT_SYS_IRQ_1 7 +#define SYS_NIRQ2_EXT_SYS_IRQ_2 119 + static void __iomem *wakeupgen_base; static void __iomem *sar_base; static DEFINE_RAW_SPINLOCK(wakeupgen_lock); @@ -153,6 +153,37 @@ static void wakeupgen_unmask(struct irq_data *d) irq_chip_unmask_parent(d); } +/* + * The sys_nirq pins bypass peripheral modules and are wired directly + * to MPUSS wakeupgen. They get automatically inverted for GIC. + */ +static int wakeupgen_irq_set_type(struct irq_data *d, unsigned int type) +{ + bool inverted = false; + + switch (type) { + case IRQ_TYPE_LEVEL_LOW: + type &= ~IRQ_TYPE_LEVEL_MASK; + type |= IRQ_TYPE_LEVEL_HIGH; + inverted = true; + break; + case IRQ_TYPE_EDGE_FALLING: + type &= ~IRQ_TYPE_EDGE_BOTH; + type |= IRQ_TYPE_EDGE_RISING; + inverted = true; + break; + default: + break; + } + + if (inverted && d->hwirq != SYS_NIRQ1_EXT_SYS_IRQ_1 && + d->hwirq != SYS_NIRQ2_EXT_SYS_IRQ_2) + pr_warn("wakeupgen: irq%li polarity inverted in dts\n", + d->hwirq); + + return irq_chip_set_type_parent(d, type); +} + #ifdef CONFIG_HOTPLUG_CPU static DEFINE_PER_CPU(u32 [MAX_NR_REG_BANKS], irqmasks); @@ -299,8 +330,6 @@ static void irq_save_context(void) if (soc_is_dra7xx()) return; - if (!sar_base) - sar_base = omap4_get_sar_ram_base(); if (wakeupgen_ops && wakeupgen_ops->save_context) wakeupgen_ops->save_context(); } @@ -345,6 +374,7 @@ static void irq_restore_context(void) static void irq_save_secure_context(void) { u32 ret; + ret = omap_secure_dispatcher(OMAP4_HAL_SAVEGIC_INDEX, FLAG_START_CRITICAL, 0, 0, 0, 0, 0); @@ -404,13 +434,13 @@ static int irq_notifier(struct notifier_block *self, unsigned long cmd, void *v) { switch (cmd) { case CPU_CLUSTER_PM_ENTER: - if (omap_type() == OMAP2_DEVICE_TYPE_GP) + if (omap_type() == OMAP2_DEVICE_TYPE_GP || soc_is_am43xx()) irq_save_context(); else irq_save_secure_context(); break; case CPU_CLUSTER_PM_EXIT: - if (omap_type() == OMAP2_DEVICE_TYPE_GP) + if (omap_type() == OMAP2_DEVICE_TYPE_GP || soc_is_am43xx()) irq_restore_context(); break; } @@ -448,7 +478,7 @@ static struct irq_chip wakeupgen_chip = { .irq_mask = wakeupgen_mask, .irq_unmask = wakeupgen_unmask, .irq_retrigger = irq_chip_retrigger_hierarchy, - .irq_set_type = irq_chip_set_type_parent, + .irq_set_type = wakeupgen_irq_set_type, .flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND, #ifdef CONFIG_SMP .irq_set_affinity = irq_chip_set_affinity_parent, @@ -522,13 +552,13 @@ static int __init wakeupgen_init(struct device_node *node, u32 val; if (!parent) { - pr_err("%s: no parent, giving up\n", node->full_name); + pr_err("%pOF: no parent, giving up\n", node); return -ENODEV; } parent_domain = irq_find_host(parent); if (!parent_domain) { - pr_err("%s: unable to obtain parent domain\n", node->full_name); + pr_err("%pOF: unable to obtain parent domain\n", node); return -ENXIO; } /* Not supported on OMAP4 ES1.0 silicon */ @@ -555,9 +585,8 @@ static int __init wakeupgen_init(struct device_node *node, wakeupgen_ops = &am43xx_wakeupgen_ops; } - domain = irq_domain_add_hierarchy(parent_domain, 0, max_irqs, - node, &wakeupgen_domain_ops, - NULL); + domain = irq_domain_create_hierarchy(parent_domain, 0, max_irqs, of_fwnode_handle(node), + &wakeupgen_domain_ops, NULL); if (!domain) { iounmap(wakeupgen_base); return -ENOMEM; @@ -598,6 +627,8 @@ static int __init wakeupgen_init(struct device_node *node, irq_hotplug_init(); irq_pm_init(); + sar_base = omap4_get_sar_ram_base(); + return 0; } IRQCHIP_DECLARE(ti_wakeupgen, "ti,omap4-wugen-mpu", wakeupgen_init); |