diff options
Diffstat (limited to 'drivers/irqchip')
-rw-r--r-- | drivers/irqchip/irq-bcm7038-l1.c | 4 | ||||
-rw-r--r-- | drivers/irqchip/irq-gic-v3-its.c | 4 | ||||
-rw-r--r-- | drivers/irqchip/irq-gic-v3.c | 2 | ||||
-rw-r--r-- | drivers/irqchip/irq-gic.c | 9 | ||||
-rw-r--r-- | drivers/irqchip/irq-ingenic.c | 15 | ||||
-rw-r--r-- | drivers/irqchip/irq-nvic.c | 2 | ||||
-rw-r--r-- | drivers/irqchip/irq-s3c24xx.c | 22 | ||||
-rw-r--r-- | drivers/irqchip/irq-versatile-fpga.c | 18 | ||||
-rw-r--r-- | drivers/irqchip/msm_show_resume_irq.c | 2 |
9 files changed, 57 insertions, 21 deletions
diff --git a/drivers/irqchip/irq-bcm7038-l1.c b/drivers/irqchip/irq-bcm7038-l1.c index 6fb34bf0f352..34e13623f29d 100644 --- a/drivers/irqchip/irq-bcm7038-l1.c +++ b/drivers/irqchip/irq-bcm7038-l1.c @@ -283,6 +283,10 @@ static int __init bcm7038_l1_init_one(struct device_node *dn, pr_err("failed to map parent interrupt %d\n", parent_irq); return -EINVAL; } + + if (of_property_read_bool(dn, "brcm,irq-can-wake")) + enable_irq_wake(parent_irq); + irq_set_chained_handler_and_data(parent_irq, bcm7038_l1_irq_handle, intc); diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index cf11d43ce241..fee7c6f3e971 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -352,11 +352,11 @@ static struct its_collection *its_build_invall_cmd(struct its_cmd_block *cmd, struct its_cmd_desc *desc) { its_encode_cmd(cmd, GITS_CMD_INVALL); - its_encode_collection(cmd, desc->its_mapc_cmd.col->col_id); + its_encode_collection(cmd, desc->its_invall_cmd.col->col_id); its_fixup_cmd(cmd); - return NULL; + return desc->its_invall_cmd.col; } static u64 its_cmd_ptr_to_offset(struct its_node *its, diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index 2b8b0e4036b5..058b65cbfdd0 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -25,6 +25,7 @@ #include <linux/percpu.h> #include <linux/slab.h> #include <linux/module.h> +#include <linux/wakeup_reason.h> #include <linux/irqchip.h> #include <linux/irqchip/arm-gic-v3.h> @@ -442,6 +443,7 @@ static void gic_show_resume_irq(struct gic_chip_data *gic) else if (desc->action && desc->action->name) name = desc->action->name; + log_base_wakeup_reason(irq); pr_warn("%s: %d triggered %s\n", __func__, irq, name); } } diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 25b5a2427705..db27aa9c7e8d 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -42,7 +42,7 @@ #include <linux/irqchip/chained_irq.h> #include <linux/irqchip/arm-gic.h> #include <linux/syscore_ops.h> - +#include <linux/wakeup_reason.h> #include <asm/cputype.h> #include <asm/irq.h> #include <asm/exception.h> @@ -544,12 +544,13 @@ static void __exception_irq_entry gic_handle_irq(struct pt_regs *regs) } while (1); } -static void gic_handle_cascade_irq(struct irq_desc *desc) +static bool gic_handle_cascade_irq(struct irq_desc *desc) { struct gic_chip_data *chip_data = irq_desc_get_handler_data(desc); struct irq_chip *chip = irq_desc_get_chip(desc); unsigned int cascade_irq, gic_irq; unsigned long status; + int handled = false; chained_irq_enter(chip, desc); @@ -565,10 +566,12 @@ static void gic_handle_cascade_irq(struct irq_desc *desc) if (unlikely(gic_irq < 32 || gic_irq > 1020)) handle_bad_irq(desc); else - generic_handle_irq(cascade_irq); + handled = generic_handle_irq(cascade_irq); + out: chained_irq_exit(chip, desc); + return handled == true; } static struct irq_chip gic_chip = { diff --git a/drivers/irqchip/irq-ingenic.c b/drivers/irqchip/irq-ingenic.c index fc5953dea509..b2e16dca76a6 100644 --- a/drivers/irqchip/irq-ingenic.c +++ b/drivers/irqchip/irq-ingenic.c @@ -117,6 +117,14 @@ static int __init ingenic_intc_of_init(struct device_node *node, goto out_unmap_irq; } + domain = irq_domain_add_legacy(node, num_chips * 32, + JZ4740_IRQ_BASE, 0, + &irq_domain_simple_ops, NULL); + if (!domain) { + err = -ENOMEM; + goto out_unmap_base; + } + for (i = 0; i < num_chips; i++) { /* Mask all irqs */ writel(0xffffffff, intc->base + (i * CHIP_SIZE) + @@ -143,14 +151,11 @@ static int __init ingenic_intc_of_init(struct device_node *node, IRQ_NOPROBE | IRQ_LEVEL); } - domain = irq_domain_add_legacy(node, num_chips * 32, JZ4740_IRQ_BASE, 0, - &irq_domain_simple_ops, NULL); - if (!domain) - pr_warn("unable to register IRQ domain\n"); - setup_irq(parent_irq, &intc_cascade_action); return 0; +out_unmap_base: + iounmap(intc->base); out_unmap_irq: irq_dispose_mapping(parent_irq); out_free: diff --git a/drivers/irqchip/irq-nvic.c b/drivers/irqchip/irq-nvic.c index b1777104fd9f..9694529b709d 100644 --- a/drivers/irqchip/irq-nvic.c +++ b/drivers/irqchip/irq-nvic.c @@ -29,7 +29,7 @@ #define NVIC_ISER 0x000 #define NVIC_ICER 0x080 -#define NVIC_IPR 0x300 +#define NVIC_IPR 0x400 #define NVIC_MAX_BANKS 16 /* diff --git a/drivers/irqchip/irq-s3c24xx.c b/drivers/irqchip/irq-s3c24xx.c index c71914e8f596..cd7fdce98359 100644 --- a/drivers/irqchip/irq-s3c24xx.c +++ b/drivers/irqchip/irq-s3c24xx.c @@ -368,11 +368,25 @@ static inline int s3c24xx_handle_intc(struct s3c_irq_intc *intc, asmlinkage void __exception_irq_entry s3c24xx_handle_irq(struct pt_regs *regs) { do { - if (likely(s3c_intc[0])) - if (s3c24xx_handle_intc(s3c_intc[0], regs, 0)) - continue; + /* + * For platform based machines, neither ERR nor NULL can happen here. + * The s3c24xx_handle_irq() will be set as IRQ handler iff this succeeds: + * + * s3c_intc[0] = s3c24xx_init_intc() + * + * If this fails, the next calls to s3c24xx_init_intc() won't be executed. + * + * For DT machine, s3c_init_intc_of() could set the IRQ handler without + * setting s3c_intc[0] only if it was called with num_ctrl=0. There is no + * such code path, so again the s3c_intc[0] will have a valid pointer if + * set_handle_irq() is called. + * + * Therefore in s3c24xx_handle_irq(), the s3c_intc[0] is always something. + */ + if (s3c24xx_handle_intc(s3c_intc[0], regs, 0)) + continue; - if (s3c_intc[2]) + if (!IS_ERR_OR_NULL(s3c_intc[2])) if (s3c24xx_handle_intc(s3c_intc[2], regs, 64)) continue; diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c index cadf104e3074..08b66b25f845 100644 --- a/drivers/irqchip/irq-versatile-fpga.c +++ b/drivers/irqchip/irq-versatile-fpga.c @@ -5,6 +5,7 @@ #include <linux/irq.h> #include <linux/io.h> #include <linux/irqchip.h> +#include <linux/irqchip/chained_irq.h> #include <linux/irqchip/versatile-fpga.h> #include <linux/irqdomain.h> #include <linux/module.h> @@ -67,12 +68,16 @@ static void fpga_irq_unmask(struct irq_data *d) static void fpga_irq_handle(struct irq_desc *desc) { + struct irq_chip *chip = irq_desc_get_chip(desc); struct fpga_irq_data *f = irq_desc_get_handler_data(desc); - u32 status = readl(f->base + IRQ_STATUS); + u32 status; + + chained_irq_enter(chip, desc); + status = readl(f->base + IRQ_STATUS); if (status == 0) { do_bad_IRQ(desc); - return; + goto out; } do { @@ -81,6 +86,9 @@ static void fpga_irq_handle(struct irq_desc *desc) status &= ~(1 << irq); generic_handle_irq(irq_find_mapping(f->domain, irq)); } while (status); + +out: + chained_irq_exit(chip, desc); } /* @@ -203,6 +211,9 @@ int __init fpga_irq_of_init(struct device_node *node, if (of_property_read_u32(node, "valid-mask", &valid_mask)) valid_mask = 0; + writel(clear_mask, base + IRQ_ENABLE_CLEAR); + writel(clear_mask, base + FIQ_ENABLE_CLEAR); + /* Some chips are cascaded from a parent IRQ */ parent_irq = irq_of_parse_and_map(node, 0); if (!parent_irq) { @@ -217,9 +228,6 @@ int __init fpga_irq_of_init(struct device_node *node, fpga_irq_init(base, node->name, 0, parent_irq, valid_mask, node); #endif - writel(clear_mask, base + IRQ_ENABLE_CLEAR); - writel(clear_mask, base + FIQ_ENABLE_CLEAR); - /* * On Versatile AB/PB, some secondary interrupts have a direct * pass-thru to the primary controller for IRQs 20 and 22-31 which need diff --git a/drivers/irqchip/msm_show_resume_irq.c b/drivers/irqchip/msm_show_resume_irq.c index 521149671fdf..cfadb7c2643d 100644 --- a/drivers/irqchip/msm_show_resume_irq.c +++ b/drivers/irqchip/msm_show_resume_irq.c @@ -15,7 +15,7 @@ #include <linux/kernel.h> #include <linux/init.h> -int msm_show_resume_irq_mask; +int msm_show_resume_irq_mask = 1; module_param_named( debug_mask, msm_show_resume_irq_mask, int, S_IRUGO | S_IWUSR | S_IWGRP |