3  *  linux/arch/arm/common/vic.c
23 #include <linux/irqchip/arm-vic.h>
42 #define VIC_ITCR			0x300	/* VIC test control register */
49  * struct vic_device - VIC PM device
50  * @parent_irq: The parent IRQ number of the VIC if cascaded, or 0.
51  * @irq: The IRQ number for the base of the VIC.
52  * @base: The register base for the VIC.
60  * @domain: The IRQ domain for the VIC.
84  * @base: Base of the VIC.
102 static void resume_one_vic(struct vic_device *vic)  in resume_one_vic()  argument
104 	void __iomem *base = vic->base;  in resume_one_vic()
106 	printk(KERN_DEBUG "%s: resuming vic at %p\n", __func__, base);  in resume_one_vic()
111 	writel(vic->int_select, base + VIC_INT_SELECT);  in resume_one_vic()
112 	writel(vic->protect, base + VIC_PROTECT);  in resume_one_vic()
115 	writel(vic->int_enable, base + VIC_INT_ENABLE);  in resume_one_vic()
116 	writel(~vic->int_enable, base + VIC_INT_ENABLE_CLEAR);  in resume_one_vic()
120 	writel(vic->soft_int, base + VIC_INT_SOFT);  in resume_one_vic()
121 	writel(~vic->soft_int, base + VIC_INT_SOFT_CLEAR);  in resume_one_vic()
132 static void suspend_one_vic(struct vic_device *vic)  in suspend_one_vic()  argument
134 	void __iomem *base = vic->base;  in suspend_one_vic()
136 	printk(KERN_DEBUG "%s: suspending vic at %p\n", __func__, base);  in suspend_one_vic()
138 	vic->int_select = readl(base + VIC_INT_SELECT);  in suspend_one_vic()
139 	vic->int_enable = readl(base + VIC_INT_ENABLE);  in suspend_one_vic()
140 	vic->soft_int = readl(base + VIC_INT_SOFT);  in suspend_one_vic()
141 	vic->protect = readl(base + VIC_PROTECT);  in suspend_one_vic()
146 	writel(vic->resume_irqs, base + VIC_INT_ENABLE);  in suspend_one_vic()
147 	writel(~vic->resume_irqs, base + VIC_INT_ENABLE_CLEAR);  in suspend_one_vic()
166  * vic_pm_init - initcall to register VIC pm
170  * nature of the VIC's registration.
199  * Handle each interrupt in a single VIC.  Returns non-zero if we've
204 static int handle_one_vic(struct vic_device *vic, struct pt_regs *regs)  in handle_one_vic()  argument
209 	while ((stat = readl_relaxed(vic->base + VIC_IRQ_STATUS))) {  in handle_one_vic()
211 		generic_handle_domain_irq(vic->domain, irq);  in handle_one_vic()
222 	struct vic_device *vic = irq_desc_get_handler_data(desc);  in vic_handle_irq_cascaded()  local
226 	while ((stat = readl_relaxed(vic->base + VIC_IRQ_STATUS))) {  in vic_handle_irq_cascaded()
228 		generic_handle_domain_irq(vic->domain, hwirq);  in vic_handle_irq_cascaded()
235  * Keep iterating over all registered VIC's until there are no pending
254  * vic_register() - Register a VIC.
255  * @base: The base address of the VIC.
257  * @irq: The base IRQ for the VIC.
260  * @node: The device tree node associated with the VIC.
262  * Register the VIC with the system device tree so that it can be notified
266  * This also configures the IRQ domain for the VIC.
368 	.name		= "VIC",
442 	/* Identify which VIC cell this one is, by reading the ID */  in __vic_init()
449 	printk(KERN_INFO "VIC @%p: id 0x%08x, vendor 0x%02x\n",  in __vic_init()
457 		printk(KERN_WARNING "VIC: unknown vendor, continuing anyways\n");  in __vic_init()
513 IRQCHIP_DECLARE(arm_pl190_vic, "arm,pl190-vic", vic_of_init);
514 IRQCHIP_DECLARE(arm_pl192_vic, "arm,pl192-vic", vic_of_init);
515 IRQCHIP_DECLARE(arm_versatile_vic, "arm,versatile-vic", vic_of_init);