| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| 533 | 54.39% | 4 | 26.67% | |
| 401 | 40.92% | 1 | 6.67% | |
| 24 | 2.45% | 1 | 6.67% | |
| 15 | 1.53% | 4 | 26.67% | |
| 3 | 0.31% | 1 | 6.67% | |
| 1 | 0.10% | 1 | 6.67% | |
| 1 | 0.10% | 1 | 6.67% | |
| 1 | 0.10% | 1 | 6.67% | |
| 1 | 0.10% | 1 | 6.67% | |
| Total | 980 | 15 |
| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Tony Prisk | 533 | 54.39% | 4 | 26.67% |
| Alexey Charkov | 401 | 40.92% | 1 | 6.67% |
| Wolfram Sang | 24 | 2.45% | 1 | 6.67% |
| Thomas Gleixner | 15 | 1.53% | 4 | 26.67% |
| Yoshinori Sato | 3 | 0.31% | 1 | 6.67% |
| Stephen Boyd | 1 | 0.10% | 1 | 6.67% |
| Krzysztof Kozlowski | 1 | 0.10% | 1 | 6.67% |
| Axel Lin | 1 | 0.10% | 1 | 6.67% |
| Mark Rutland | 1 | 0.10% | 1 | 6.67% |
| Total | 980 | 15 |
// SPDX-License-Identifier: GPL-2.0-or-later /* * arch/arm/mach-vt8500/irq.c * * Copyright (C) 2012 Tony Prisk <linux@prisktech.co.nz> * Copyright (C) 2010 Alexey Charkov <alchark@gmail.com> */ /* * This file is copied and modified from the original irq.c provided by * Alexey Charkov. Minor changes have been made for Device Tree Support. */ #include <linux/slab.h> #include <linux/io.h> #include <linux/irq.h> #include <linux/irqchip.h> #include <linux/irqdomain.h> #include <linux/interrupt.h> #include <linux/bitops.h> #include <linux/of.h> #include <linux/of_irq.h> #include <linux/of_address.h> #include <asm/irq.h> #include <asm/exception.h> #include <asm/mach/irq.h> #define VT8500_ICPC_IRQ 0x20 #define VT8500_ICPC_FIQ 0x24 #define VT8500_ICDC 0x40 /* Destination Control 64*u32 */ #define VT8500_ICIS 0x80 /* Interrupt status, 16*u32 */ /* ICPC */ #define ICPC_MASK 0x3F #define ICPC_ROTATE BIT(6) /* IC_DCTR */ #define ICDC_IRQ 0x00 #define ICDC_FIQ 0x01 #define ICDC_DSS0 0x02 #define ICDC_DSS1 0x03 #define ICDC_DSS2 0x04 #define ICDC_DSS3 0x05 #define ICDC_DSS4 0x06 #define ICDC_DSS5 0x07 #define VT8500_INT_DISABLE 0 #define VT8500_INT_ENABLE BIT(3) #define VT8500_TRIGGER_HIGH 0 #define VT8500_TRIGGER_RISING BIT(5) #define VT8500_TRIGGER_FALLING BIT(6) #define VT8500_EDGE ( VT8500_TRIGGER_RISING \ | VT8500_TRIGGER_FALLING) /* vt8500 has 1 intc, wm8505 and wm8650 have 2 */ #define VT8500_INTC_MAX 2 struct vt8500_irq_data { void __iomem *base; /* IO Memory base address */ struct irq_domain *domain; /* Domain for this controller */ }; /* Global variable for accessing io-mem addresses */ static struct vt8500_irq_data intc[VT8500_INTC_MAX]; static u32 active_cnt = 0; static void vt8500_irq_mask(struct irq_data *d) { struct vt8500_irq_data *priv = d->domain->host_data; void __iomem *base = priv->base; void __iomem *stat_reg = base + VT8500_ICIS + (d->hwirq < 32 ? 0 : 4); u8 edge, dctr; u32 status; edge = readb(base + VT8500_ICDC + d->hwirq) & VT8500_EDGE; if (edge) { status = readl(stat_reg); status |= (1 << (d->hwirq & 0x1f)); writel(status, stat_reg); } else { dctr = readb(base + VT8500_ICDC + d->hwirq); dctr &= ~VT8500_INT_ENABLE; writeb(dctr, base + VT8500_ICDC + d->hwirq); } } static void vt8500_irq_unmask(struct irq_data *d) { struct vt8500_irq_data *priv = d->domain->host_data; void __iomem *base = priv->base; u8 dctr; dctr = readb(base + VT8500_ICDC + d->hwirq); dctr |= VT8500_INT_ENABLE; writeb(dctr, base + VT8500_ICDC + d->hwirq); } static int vt8500_irq_set_type(struct irq_data *d, unsigned int flow_type) { struct vt8500_irq_data *priv = d->domain->host_data; void __iomem *base = priv->base; u8 dctr; dctr = readb(base + VT8500_ICDC + d->hwirq); dctr &= ~VT8500_EDGE; switch (flow_type) { case IRQF_TRIGGER_LOW: return -EINVAL; case IRQF_TRIGGER_HIGH: dctr |= VT8500_TRIGGER_HIGH; irq_set_handler_locked(d, handle_level_irq); break; case IRQF_TRIGGER_FALLING: dctr |= VT8500_TRIGGER_FALLING; irq_set_handler_locked(d, handle_edge_irq); break; case IRQF_TRIGGER_RISING: dctr |= VT8500_TRIGGER_RISING; irq_set_handler_locked(d, handle_edge_irq); break; } writeb(dctr, base + VT8500_ICDC + d->hwirq); return 0; } static struct irq_chip vt8500_irq_chip = { .name = "vt8500", .irq_ack = vt8500_irq_mask, .irq_mask = vt8500_irq_mask, .irq_unmask = vt8500_irq_unmask, .irq_set_type = vt8500_irq_set_type, }; static void __init vt8500_init_irq_hw(void __iomem *base) { u32 i; /* Enable rotating priority for IRQ */ writel(ICPC_ROTATE, base + VT8500_ICPC_IRQ); writel(0x00, base + VT8500_ICPC_FIQ); /* Disable all interrupts and route them to IRQ */ for (i = 0; i < 64; i++) writeb(VT8500_INT_DISABLE | ICDC_IRQ, base + VT8500_ICDC + i); } static int vt8500_irq_map(struct irq_domain *h, unsigned int virq, irq_hw_number_t hw) { irq_set_chip_and_handler(virq, &vt8500_irq_chip, handle_level_irq); return 0; } static const struct irq_domain_ops vt8500_irq_domain_ops = { .map = vt8500_irq_map, .xlate = irq_domain_xlate_onecell, }; static void __exception_irq_entry vt8500_handle_irq(struct pt_regs *regs) { u32 stat, i; int irqnr; void __iomem *base; /* Loop through each active controller */ for (i=0; i<active_cnt; i++) { base = intc[i].base; irqnr = readl_relaxed(base) & 0x3F; /* Highest Priority register default = 63, so check that this is a real interrupt by checking the status register */ if (irqnr == 63) { stat = readl_relaxed(base + VT8500_ICIS + 4); if (!(stat & BIT(31))) continue; } generic_handle_domain_irq(intc[i].domain, irqnr); } } static int __init vt8500_irq_init(struct device_node *node, struct device_node *parent) { int irq, i; struct device_node *np = node; if (active_cnt == VT8500_INTC_MAX) { pr_err("%s: Interrupt controllers > VT8500_INTC_MAX\n", __func__); goto out; } intc[active_cnt].base = of_iomap(np, 0); intc[active_cnt].domain = irq_domain_add_linear(node, 64, &vt8500_irq_domain_ops, &intc[active_cnt]); if (!intc[active_cnt].base) { pr_err("%s: Unable to map IO memory\n", __func__); goto out; } if (!intc[active_cnt].domain) { pr_err("%s: Unable to add irq domain!\n", __func__); goto out; } set_handle_irq(vt8500_handle_irq); vt8500_init_irq_hw(intc[active_cnt].base); pr_info("vt8500-irq: Added interrupt controller\n"); active_cnt++; /* check if this is a slaved controller */ if (of_irq_count(np) != 0) { /* check that we have the correct number of interrupts */ if (of_irq_count(np) != 8) { pr_err("%s: Incorrect IRQ map for slaved controller\n", __func__); return -EINVAL; } for (i = 0; i < 8; i++) { irq = irq_of_parse_and_map(np, i); enable_irq(irq); } pr_info("vt8500-irq: Enabled slave->parent interrupts\n"); } out: return 0; } IRQCHIP_DECLARE(vt8500_irq, "via,vt8500-intc", vt8500_irq_init);