Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 1 | /* linux/arch/arm/plat-s3c24xx/irq.c |
| 2 | * |
Ben Dooks | e02f866 | 2009-11-13 22:54:13 +0000 | [diff] [blame] | 3 | * Copyright (c) 2003-2004 Simtec Electronics |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 4 | * Ben Dooks <ben@simtec.co.uk> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 19 | */ |
| 20 | |
| 21 | #include <linux/init.h> |
| 22 | #include <linux/module.h> |
| 23 | #include <linux/interrupt.h> |
| 24 | #include <linux/ioport.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 25 | #include <linux/sysdev.h> |
Heiko Stuebner | de11c58 | 2011-06-02 12:57:41 +0200 | [diff] [blame^] | 26 | #include <linux/syscore_ops.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 27 | |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 28 | #include <asm/irq.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 29 | #include <asm/mach/irq.h> |
| 30 | |
Ben Dooks | 6af0e92 | 2008-10-21 14:06:47 +0100 | [diff] [blame] | 31 | #include <plat/regs-irqtype.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 32 | |
Ben Dooks | a2b7ba9 | 2008-10-07 22:26:09 +0100 | [diff] [blame] | 33 | #include <plat/cpu.h> |
| 34 | #include <plat/pm.h> |
| 35 | #include <plat/irq.h> |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 36 | |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 37 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 38 | s3c_irq_mask(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 39 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 40 | unsigned int irqno = data->irq - IRQ_EINT0; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 41 | unsigned long mask; |
| 42 | |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 43 | mask = __raw_readl(S3C2410_INTMSK); |
| 44 | mask |= 1UL << irqno; |
| 45 | __raw_writel(mask, S3C2410_INTMSK); |
| 46 | } |
| 47 | |
| 48 | static inline void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 49 | s3c_irq_ack(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 50 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 51 | unsigned long bitval = 1UL << (data->irq - IRQ_EINT0); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 52 | |
| 53 | __raw_writel(bitval, S3C2410_SRCPND); |
| 54 | __raw_writel(bitval, S3C2410_INTPND); |
| 55 | } |
| 56 | |
| 57 | static inline void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 58 | s3c_irq_maskack(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 59 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 60 | unsigned long bitval = 1UL << (data->irq - IRQ_EINT0); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 61 | unsigned long mask; |
| 62 | |
| 63 | mask = __raw_readl(S3C2410_INTMSK); |
| 64 | __raw_writel(mask|bitval, S3C2410_INTMSK); |
| 65 | |
| 66 | __raw_writel(bitval, S3C2410_SRCPND); |
| 67 | __raw_writel(bitval, S3C2410_INTPND); |
| 68 | } |
| 69 | |
| 70 | |
| 71 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 72 | s3c_irq_unmask(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 73 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 74 | unsigned int irqno = data->irq; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 75 | unsigned long mask; |
| 76 | |
| 77 | if (irqno != IRQ_TIMER4 && irqno != IRQ_EINT8t23) |
| 78 | irqdbf2("s3c_irq_unmask %d\n", irqno); |
| 79 | |
| 80 | irqno -= IRQ_EINT0; |
| 81 | |
| 82 | mask = __raw_readl(S3C2410_INTMSK); |
| 83 | mask &= ~(1UL << irqno); |
| 84 | __raw_writel(mask, S3C2410_INTMSK); |
| 85 | } |
| 86 | |
| 87 | struct irq_chip s3c_irq_level_chip = { |
| 88 | .name = "s3c-level", |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 89 | .irq_ack = s3c_irq_maskack, |
| 90 | .irq_mask = s3c_irq_mask, |
| 91 | .irq_unmask = s3c_irq_unmask, |
| 92 | .irq_set_wake = s3c_irq_wake |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 93 | }; |
| 94 | |
Ben Dooks | 0baada2 | 2007-12-23 03:09:33 +0100 | [diff] [blame] | 95 | struct irq_chip s3c_irq_chip = { |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 96 | .name = "s3c", |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 97 | .irq_ack = s3c_irq_ack, |
| 98 | .irq_mask = s3c_irq_mask, |
| 99 | .irq_unmask = s3c_irq_unmask, |
| 100 | .irq_set_wake = s3c_irq_wake |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 101 | }; |
| 102 | |
| 103 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 104 | s3c_irqext_mask(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 105 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 106 | unsigned int irqno = data->irq - EXTINT_OFF; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 107 | unsigned long mask; |
| 108 | |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 109 | mask = __raw_readl(S3C24XX_EINTMASK); |
| 110 | mask |= ( 1UL << irqno); |
| 111 | __raw_writel(mask, S3C24XX_EINTMASK); |
| 112 | } |
| 113 | |
| 114 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 115 | s3c_irqext_ack(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 116 | { |
| 117 | unsigned long req; |
| 118 | unsigned long bit; |
| 119 | unsigned long mask; |
| 120 | |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 121 | bit = 1UL << (data->irq - EXTINT_OFF); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 122 | |
| 123 | mask = __raw_readl(S3C24XX_EINTMASK); |
| 124 | |
| 125 | __raw_writel(bit, S3C24XX_EINTPEND); |
| 126 | |
| 127 | req = __raw_readl(S3C24XX_EINTPEND); |
| 128 | req &= ~mask; |
| 129 | |
| 130 | /* not sure if we should be acking the parent irq... */ |
| 131 | |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 132 | if (data->irq <= IRQ_EINT7) { |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 133 | if ((req & 0xf0) == 0) |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 134 | s3c_irq_ack(irq_get_irq_data(IRQ_EINT4t7)); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 135 | } else { |
| 136 | if ((req >> 8) == 0) |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 137 | s3c_irq_ack(irq_get_irq_data(IRQ_EINT8t23)); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 138 | } |
| 139 | } |
| 140 | |
| 141 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 142 | s3c_irqext_unmask(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 143 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 144 | unsigned int irqno = data->irq - EXTINT_OFF; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 145 | unsigned long mask; |
| 146 | |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 147 | mask = __raw_readl(S3C24XX_EINTMASK); |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 148 | mask &= ~(1UL << irqno); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 149 | __raw_writel(mask, S3C24XX_EINTMASK); |
| 150 | } |
| 151 | |
| 152 | int |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 153 | s3c_irqext_type(struct irq_data *data, unsigned int type) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 154 | { |
| 155 | void __iomem *extint_reg; |
| 156 | void __iomem *gpcon_reg; |
| 157 | unsigned long gpcon_offset, extint_offset; |
| 158 | unsigned long newvalue = 0, value; |
| 159 | |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 160 | if ((data->irq >= IRQ_EINT0) && (data->irq <= IRQ_EINT3)) { |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 161 | gpcon_reg = S3C2410_GPFCON; |
| 162 | extint_reg = S3C24XX_EXTINT0; |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 163 | gpcon_offset = (data->irq - IRQ_EINT0) * 2; |
| 164 | extint_offset = (data->irq - IRQ_EINT0) * 4; |
| 165 | } else if ((data->irq >= IRQ_EINT4) && (data->irq <= IRQ_EINT7)) { |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 166 | gpcon_reg = S3C2410_GPFCON; |
| 167 | extint_reg = S3C24XX_EXTINT0; |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 168 | gpcon_offset = (data->irq - (EXTINT_OFF)) * 2; |
| 169 | extint_offset = (data->irq - (EXTINT_OFF)) * 4; |
| 170 | } else if ((data->irq >= IRQ_EINT8) && (data->irq <= IRQ_EINT15)) { |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 171 | gpcon_reg = S3C2410_GPGCON; |
| 172 | extint_reg = S3C24XX_EXTINT1; |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 173 | gpcon_offset = (data->irq - IRQ_EINT8) * 2; |
| 174 | extint_offset = (data->irq - IRQ_EINT8) * 4; |
| 175 | } else if ((data->irq >= IRQ_EINT16) && (data->irq <= IRQ_EINT23)) { |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 176 | gpcon_reg = S3C2410_GPGCON; |
| 177 | extint_reg = S3C24XX_EXTINT2; |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 178 | gpcon_offset = (data->irq - IRQ_EINT8) * 2; |
| 179 | extint_offset = (data->irq - IRQ_EINT16) * 4; |
| 180 | } else { |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 181 | return -1; |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 182 | } |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 183 | |
| 184 | /* Set the GPIO to external interrupt mode */ |
| 185 | value = __raw_readl(gpcon_reg); |
| 186 | value = (value & ~(3 << gpcon_offset)) | (0x02 << gpcon_offset); |
| 187 | __raw_writel(value, gpcon_reg); |
| 188 | |
| 189 | /* Set the external interrupt to pointed trigger type */ |
| 190 | switch (type) |
| 191 | { |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 192 | case IRQ_TYPE_NONE: |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 193 | printk(KERN_WARNING "No edge setting!\n"); |
| 194 | break; |
| 195 | |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 196 | case IRQ_TYPE_EDGE_RISING: |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 197 | newvalue = S3C2410_EXTINT_RISEEDGE; |
| 198 | break; |
| 199 | |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 200 | case IRQ_TYPE_EDGE_FALLING: |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 201 | newvalue = S3C2410_EXTINT_FALLEDGE; |
| 202 | break; |
| 203 | |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 204 | case IRQ_TYPE_EDGE_BOTH: |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 205 | newvalue = S3C2410_EXTINT_BOTHEDGE; |
| 206 | break; |
| 207 | |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 208 | case IRQ_TYPE_LEVEL_LOW: |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 209 | newvalue = S3C2410_EXTINT_LOWLEV; |
| 210 | break; |
| 211 | |
Dmitry Baryshkov | 6cab486 | 2008-07-27 04:23:31 +0100 | [diff] [blame] | 212 | case IRQ_TYPE_LEVEL_HIGH: |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 213 | newvalue = S3C2410_EXTINT_HILEV; |
| 214 | break; |
| 215 | |
| 216 | default: |
| 217 | printk(KERN_ERR "No such irq type %d", type); |
| 218 | return -1; |
| 219 | } |
| 220 | |
| 221 | value = __raw_readl(extint_reg); |
| 222 | value = (value & ~(7 << extint_offset)) | (newvalue << extint_offset); |
| 223 | __raw_writel(value, extint_reg); |
| 224 | |
| 225 | return 0; |
| 226 | } |
| 227 | |
| 228 | static struct irq_chip s3c_irqext_chip = { |
| 229 | .name = "s3c-ext", |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 230 | .irq_mask = s3c_irqext_mask, |
| 231 | .irq_unmask = s3c_irqext_unmask, |
| 232 | .irq_ack = s3c_irqext_ack, |
| 233 | .irq_set_type = s3c_irqext_type, |
Mark Brown | f5aeffb | 2010-12-02 14:35:38 +0900 | [diff] [blame] | 234 | .irq_set_wake = s3c_irqext_wake |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 235 | }; |
| 236 | |
| 237 | static struct irq_chip s3c_irq_eint0t4 = { |
| 238 | .name = "s3c-ext0", |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 239 | .irq_ack = s3c_irq_ack, |
| 240 | .irq_mask = s3c_irq_mask, |
| 241 | .irq_unmask = s3c_irq_unmask, |
| 242 | .irq_set_wake = s3c_irq_wake, |
| 243 | .irq_set_type = s3c_irqext_type, |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 244 | }; |
| 245 | |
| 246 | /* mask values for the parent registers for each of the interrupt types */ |
| 247 | |
| 248 | #define INTMSK_UART0 (1UL << (IRQ_UART0 - IRQ_EINT0)) |
| 249 | #define INTMSK_UART1 (1UL << (IRQ_UART1 - IRQ_EINT0)) |
| 250 | #define INTMSK_UART2 (1UL << (IRQ_UART2 - IRQ_EINT0)) |
| 251 | #define INTMSK_ADCPARENT (1UL << (IRQ_ADCPARENT - IRQ_EINT0)) |
| 252 | |
| 253 | |
| 254 | /* UART0 */ |
| 255 | |
| 256 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 257 | s3c_irq_uart0_mask(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 258 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 259 | s3c_irqsub_mask(data->irq, INTMSK_UART0, 7); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 260 | } |
| 261 | |
| 262 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 263 | s3c_irq_uart0_unmask(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 264 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 265 | s3c_irqsub_unmask(data->irq, INTMSK_UART0); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 266 | } |
| 267 | |
| 268 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 269 | s3c_irq_uart0_ack(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 270 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 271 | s3c_irqsub_maskack(data->irq, INTMSK_UART0, 7); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 272 | } |
| 273 | |
| 274 | static struct irq_chip s3c_irq_uart0 = { |
| 275 | .name = "s3c-uart0", |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 276 | .irq_mask = s3c_irq_uart0_mask, |
| 277 | .irq_unmask = s3c_irq_uart0_unmask, |
| 278 | .irq_ack = s3c_irq_uart0_ack, |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 279 | }; |
| 280 | |
| 281 | /* UART1 */ |
| 282 | |
| 283 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 284 | s3c_irq_uart1_mask(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 285 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 286 | s3c_irqsub_mask(data->irq, INTMSK_UART1, 7 << 3); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 287 | } |
| 288 | |
| 289 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 290 | s3c_irq_uart1_unmask(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 291 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 292 | s3c_irqsub_unmask(data->irq, INTMSK_UART1); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 293 | } |
| 294 | |
| 295 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 296 | s3c_irq_uart1_ack(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 297 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 298 | s3c_irqsub_maskack(data->irq, INTMSK_UART1, 7 << 3); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 299 | } |
| 300 | |
| 301 | static struct irq_chip s3c_irq_uart1 = { |
| 302 | .name = "s3c-uart1", |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 303 | .irq_mask = s3c_irq_uart1_mask, |
| 304 | .irq_unmask = s3c_irq_uart1_unmask, |
| 305 | .irq_ack = s3c_irq_uart1_ack, |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 306 | }; |
| 307 | |
| 308 | /* UART2 */ |
| 309 | |
| 310 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 311 | s3c_irq_uart2_mask(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 312 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 313 | s3c_irqsub_mask(data->irq, INTMSK_UART2, 7 << 6); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 314 | } |
| 315 | |
| 316 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 317 | s3c_irq_uart2_unmask(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 318 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 319 | s3c_irqsub_unmask(data->irq, INTMSK_UART2); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 320 | } |
| 321 | |
| 322 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 323 | s3c_irq_uart2_ack(struct irq_data *data) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 324 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 325 | s3c_irqsub_maskack(data->irq, INTMSK_UART2, 7 << 6); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 326 | } |
| 327 | |
| 328 | static struct irq_chip s3c_irq_uart2 = { |
| 329 | .name = "s3c-uart2", |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 330 | .irq_mask = s3c_irq_uart2_mask, |
| 331 | .irq_unmask = s3c_irq_uart2_unmask, |
| 332 | .irq_ack = s3c_irq_uart2_ack, |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 333 | }; |
| 334 | |
| 335 | /* ADC and Touchscreen */ |
| 336 | |
| 337 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 338 | s3c_irq_adc_mask(struct irq_data *d) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 339 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 340 | s3c_irqsub_mask(d->irq, INTMSK_ADCPARENT, 3 << 9); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 344 | s3c_irq_adc_unmask(struct irq_data *d) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 345 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 346 | s3c_irqsub_unmask(d->irq, INTMSK_ADCPARENT); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 347 | } |
| 348 | |
| 349 | static void |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 350 | s3c_irq_adc_ack(struct irq_data *d) |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 351 | { |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 352 | s3c_irqsub_ack(d->irq, INTMSK_ADCPARENT, 3 << 9); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 353 | } |
| 354 | |
| 355 | static struct irq_chip s3c_irq_adc = { |
| 356 | .name = "s3c-adc", |
Lennert Buytenhek | 57436c2d | 2011-01-03 19:15:54 +0900 | [diff] [blame] | 357 | .irq_mask = s3c_irq_adc_mask, |
| 358 | .irq_unmask = s3c_irq_adc_unmask, |
| 359 | .irq_ack = s3c_irq_adc_ack, |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 360 | }; |
| 361 | |
| 362 | /* irq demux for adc */ |
| 363 | static void s3c_irq_demux_adc(unsigned int irq, |
| 364 | struct irq_desc *desc) |
| 365 | { |
| 366 | unsigned int subsrc, submsk; |
| 367 | unsigned int offset = 9; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 368 | |
| 369 | /* read the current pending interrupts, and the mask |
| 370 | * for what it is available */ |
| 371 | |
| 372 | subsrc = __raw_readl(S3C2410_SUBSRCPND); |
| 373 | submsk = __raw_readl(S3C2410_INTSUBMSK); |
| 374 | |
| 375 | subsrc &= ~submsk; |
| 376 | subsrc >>= offset; |
| 377 | subsrc &= 3; |
| 378 | |
| 379 | if (subsrc != 0) { |
| 380 | if (subsrc & 1) { |
Dmitry Baryshkov | d8aa025 | 2008-10-09 13:36:24 +0100 | [diff] [blame] | 381 | generic_handle_irq(IRQ_TC); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 382 | } |
| 383 | if (subsrc & 2) { |
Dmitry Baryshkov | d8aa025 | 2008-10-09 13:36:24 +0100 | [diff] [blame] | 384 | generic_handle_irq(IRQ_ADC); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 385 | } |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | static void s3c_irq_demux_uart(unsigned int start) |
| 390 | { |
| 391 | unsigned int subsrc, submsk; |
| 392 | unsigned int offset = start - IRQ_S3CUART_RX0; |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 393 | |
| 394 | /* read the current pending interrupts, and the mask |
| 395 | * for what it is available */ |
| 396 | |
| 397 | subsrc = __raw_readl(S3C2410_SUBSRCPND); |
| 398 | submsk = __raw_readl(S3C2410_INTSUBMSK); |
| 399 | |
| 400 | irqdbf2("s3c_irq_demux_uart: start=%d (%d), subsrc=0x%08x,0x%08x\n", |
| 401 | start, offset, subsrc, submsk); |
| 402 | |
| 403 | subsrc &= ~submsk; |
| 404 | subsrc >>= offset; |
| 405 | subsrc &= 7; |
| 406 | |
| 407 | if (subsrc != 0) { |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 408 | if (subsrc & 1) |
Dmitry Baryshkov | d8aa025 | 2008-10-09 13:36:24 +0100 | [diff] [blame] | 409 | generic_handle_irq(start); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 410 | |
| 411 | if (subsrc & 2) |
Dmitry Baryshkov | d8aa025 | 2008-10-09 13:36:24 +0100 | [diff] [blame] | 412 | generic_handle_irq(start+1); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 413 | |
| 414 | if (subsrc & 4) |
Dmitry Baryshkov | d8aa025 | 2008-10-09 13:36:24 +0100 | [diff] [blame] | 415 | generic_handle_irq(start+2); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 416 | } |
| 417 | } |
| 418 | |
| 419 | /* uart demux entry points */ |
| 420 | |
| 421 | static void |
| 422 | s3c_irq_demux_uart0(unsigned int irq, |
| 423 | struct irq_desc *desc) |
| 424 | { |
| 425 | irq = irq; |
| 426 | s3c_irq_demux_uart(IRQ_S3CUART_RX0); |
| 427 | } |
| 428 | |
| 429 | static void |
| 430 | s3c_irq_demux_uart1(unsigned int irq, |
| 431 | struct irq_desc *desc) |
| 432 | { |
| 433 | irq = irq; |
| 434 | s3c_irq_demux_uart(IRQ_S3CUART_RX1); |
| 435 | } |
| 436 | |
| 437 | static void |
| 438 | s3c_irq_demux_uart2(unsigned int irq, |
| 439 | struct irq_desc *desc) |
| 440 | { |
| 441 | irq = irq; |
| 442 | s3c_irq_demux_uart(IRQ_S3CUART_RX2); |
| 443 | } |
| 444 | |
| 445 | static void |
| 446 | s3c_irq_demux_extint8(unsigned int irq, |
| 447 | struct irq_desc *desc) |
| 448 | { |
| 449 | unsigned long eintpnd = __raw_readl(S3C24XX_EINTPEND); |
| 450 | unsigned long eintmsk = __raw_readl(S3C24XX_EINTMASK); |
| 451 | |
| 452 | eintpnd &= ~eintmsk; |
| 453 | eintpnd &= ~0xff; /* ignore lower irqs */ |
| 454 | |
| 455 | /* we may as well handle all the pending IRQs here */ |
| 456 | |
| 457 | while (eintpnd) { |
| 458 | irq = __ffs(eintpnd); |
| 459 | eintpnd &= ~(1<<irq); |
| 460 | |
| 461 | irq += (IRQ_EINT4 - 4); |
Dmitry Baryshkov | d8aa025 | 2008-10-09 13:36:24 +0100 | [diff] [blame] | 462 | generic_handle_irq(irq); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 463 | } |
| 464 | |
| 465 | } |
| 466 | |
| 467 | static void |
| 468 | s3c_irq_demux_extint4t7(unsigned int irq, |
| 469 | struct irq_desc *desc) |
| 470 | { |
| 471 | unsigned long eintpnd = __raw_readl(S3C24XX_EINTPEND); |
| 472 | unsigned long eintmsk = __raw_readl(S3C24XX_EINTMASK); |
| 473 | |
| 474 | eintpnd &= ~eintmsk; |
| 475 | eintpnd &= 0xff; /* only lower irqs */ |
| 476 | |
| 477 | /* we may as well handle all the pending IRQs here */ |
| 478 | |
| 479 | while (eintpnd) { |
| 480 | irq = __ffs(eintpnd); |
| 481 | eintpnd &= ~(1<<irq); |
| 482 | |
| 483 | irq += (IRQ_EINT4 - 4); |
| 484 | |
Dmitry Baryshkov | d8aa025 | 2008-10-09 13:36:24 +0100 | [diff] [blame] | 485 | generic_handle_irq(irq); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 486 | } |
| 487 | } |
| 488 | |
Ben Dooks | 229fd8f | 2009-08-03 17:26:57 +0100 | [diff] [blame] | 489 | #ifdef CONFIG_FIQ |
| 490 | /** |
| 491 | * s3c24xx_set_fiq - set the FIQ routing |
| 492 | * @irq: IRQ number to route to FIQ on processor. |
| 493 | * @on: Whether to route @irq to the FIQ, or to remove the FIQ routing. |
| 494 | * |
| 495 | * Change the state of the IRQ to FIQ routing depending on @irq and @on. If |
| 496 | * @on is true, the @irq is checked to see if it can be routed and the |
| 497 | * interrupt controller updated to route the IRQ. If @on is false, the FIQ |
| 498 | * routing is cleared, regardless of which @irq is specified. |
| 499 | */ |
| 500 | int s3c24xx_set_fiq(unsigned int irq, bool on) |
| 501 | { |
| 502 | u32 intmod; |
| 503 | unsigned offs; |
| 504 | |
| 505 | if (on) { |
| 506 | offs = irq - FIQ_START; |
| 507 | if (offs > 31) |
| 508 | return -EINVAL; |
| 509 | |
| 510 | intmod = 1 << offs; |
| 511 | } else { |
| 512 | intmod = 0; |
| 513 | } |
| 514 | |
| 515 | __raw_writel(intmod, S3C2410_INTMOD); |
| 516 | return 0; |
| 517 | } |
Ben Dooks | 0f13c82 | 2009-12-07 14:51:38 +0000 | [diff] [blame] | 518 | |
| 519 | EXPORT_SYMBOL_GPL(s3c24xx_set_fiq); |
Ben Dooks | 229fd8f | 2009-08-03 17:26:57 +0100 | [diff] [blame] | 520 | #endif |
| 521 | |
| 522 | |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 523 | /* s3c24xx_init_irq |
| 524 | * |
| 525 | * Initialise S3C2410 IRQ system |
| 526 | */ |
| 527 | |
| 528 | void __init s3c24xx_init_irq(void) |
| 529 | { |
| 530 | unsigned long pend; |
| 531 | unsigned long last; |
| 532 | int irqno; |
| 533 | int i; |
| 534 | |
Ben Dooks | 229fd8f | 2009-08-03 17:26:57 +0100 | [diff] [blame] | 535 | #ifdef CONFIG_FIQ |
| 536 | init_FIQ(); |
| 537 | #endif |
| 538 | |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 539 | irqdbf("s3c2410_init_irq: clearing interrupt status flags\n"); |
| 540 | |
| 541 | /* first, clear all interrupts pending... */ |
| 542 | |
| 543 | last = 0; |
| 544 | for (i = 0; i < 4; i++) { |
| 545 | pend = __raw_readl(S3C24XX_EINTPEND); |
| 546 | |
| 547 | if (pend == 0 || pend == last) |
| 548 | break; |
| 549 | |
| 550 | __raw_writel(pend, S3C24XX_EINTPEND); |
| 551 | printk("irq: clearing pending ext status %08x\n", (int)pend); |
| 552 | last = pend; |
| 553 | } |
| 554 | |
| 555 | last = 0; |
| 556 | for (i = 0; i < 4; i++) { |
| 557 | pend = __raw_readl(S3C2410_INTPND); |
| 558 | |
| 559 | if (pend == 0 || pend == last) |
| 560 | break; |
| 561 | |
| 562 | __raw_writel(pend, S3C2410_SRCPND); |
| 563 | __raw_writel(pend, S3C2410_INTPND); |
| 564 | printk("irq: clearing pending status %08x\n", (int)pend); |
| 565 | last = pend; |
| 566 | } |
| 567 | |
| 568 | last = 0; |
| 569 | for (i = 0; i < 4; i++) { |
| 570 | pend = __raw_readl(S3C2410_SUBSRCPND); |
| 571 | |
| 572 | if (pend == 0 || pend == last) |
| 573 | break; |
| 574 | |
| 575 | printk("irq: clearing subpending status %08x\n", (int)pend); |
| 576 | __raw_writel(pend, S3C2410_SUBSRCPND); |
| 577 | last = pend; |
| 578 | } |
| 579 | |
| 580 | /* register the main interrupts */ |
| 581 | |
| 582 | irqdbf("s3c2410_init_irq: registering s3c2410 interrupt handlers\n"); |
| 583 | |
| 584 | for (irqno = IRQ_EINT4t7; irqno <= IRQ_ADCPARENT; irqno++) { |
| 585 | /* set all the s3c2410 internal irqs */ |
| 586 | |
| 587 | switch (irqno) { |
| 588 | /* deal with the special IRQs (cascaded) */ |
| 589 | |
| 590 | case IRQ_EINT4t7: |
| 591 | case IRQ_EINT8t23: |
| 592 | case IRQ_UART0: |
| 593 | case IRQ_UART1: |
| 594 | case IRQ_UART2: |
| 595 | case IRQ_ADCPARENT: |
Thomas Gleixner | f38c02f | 2011-03-24 13:35:09 +0100 | [diff] [blame] | 596 | irq_set_chip_and_handler(irqno, &s3c_irq_level_chip, |
| 597 | handle_level_irq); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 598 | break; |
| 599 | |
| 600 | case IRQ_RESERVED6: |
| 601 | case IRQ_RESERVED24: |
| 602 | /* no IRQ here */ |
| 603 | break; |
| 604 | |
| 605 | default: |
| 606 | //irqdbf("registering irq %d (s3c irq)\n", irqno); |
Thomas Gleixner | f38c02f | 2011-03-24 13:35:09 +0100 | [diff] [blame] | 607 | irq_set_chip_and_handler(irqno, &s3c_irq_chip, |
| 608 | handle_edge_irq); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 609 | set_irq_flags(irqno, IRQF_VALID); |
| 610 | } |
| 611 | } |
| 612 | |
| 613 | /* setup the cascade irq handlers */ |
| 614 | |
Thomas Gleixner | 6845664a | 2011-03-24 13:25:22 +0100 | [diff] [blame] | 615 | irq_set_chained_handler(IRQ_EINT4t7, s3c_irq_demux_extint4t7); |
| 616 | irq_set_chained_handler(IRQ_EINT8t23, s3c_irq_demux_extint8); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 617 | |
Thomas Gleixner | 6845664a | 2011-03-24 13:25:22 +0100 | [diff] [blame] | 618 | irq_set_chained_handler(IRQ_UART0, s3c_irq_demux_uart0); |
| 619 | irq_set_chained_handler(IRQ_UART1, s3c_irq_demux_uart1); |
| 620 | irq_set_chained_handler(IRQ_UART2, s3c_irq_demux_uart2); |
| 621 | irq_set_chained_handler(IRQ_ADCPARENT, s3c_irq_demux_adc); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 622 | |
| 623 | /* external interrupts */ |
| 624 | |
| 625 | for (irqno = IRQ_EINT0; irqno <= IRQ_EINT3; irqno++) { |
| 626 | irqdbf("registering irq %d (ext int)\n", irqno); |
Thomas Gleixner | f38c02f | 2011-03-24 13:35:09 +0100 | [diff] [blame] | 627 | irq_set_chip_and_handler(irqno, &s3c_irq_eint0t4, |
| 628 | handle_edge_irq); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 629 | set_irq_flags(irqno, IRQF_VALID); |
| 630 | } |
| 631 | |
| 632 | for (irqno = IRQ_EINT4; irqno <= IRQ_EINT23; irqno++) { |
| 633 | irqdbf("registering irq %d (extended s3c irq)\n", irqno); |
Thomas Gleixner | f38c02f | 2011-03-24 13:35:09 +0100 | [diff] [blame] | 634 | irq_set_chip_and_handler(irqno, &s3c_irqext_chip, |
| 635 | handle_edge_irq); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 636 | set_irq_flags(irqno, IRQF_VALID); |
| 637 | } |
| 638 | |
| 639 | /* register the uart interrupts */ |
| 640 | |
| 641 | irqdbf("s3c2410: registering external interrupts\n"); |
| 642 | |
| 643 | for (irqno = IRQ_S3CUART_RX0; irqno <= IRQ_S3CUART_ERR0; irqno++) { |
| 644 | irqdbf("registering irq %d (s3c uart0 irq)\n", irqno); |
Thomas Gleixner | f38c02f | 2011-03-24 13:35:09 +0100 | [diff] [blame] | 645 | irq_set_chip_and_handler(irqno, &s3c_irq_uart0, |
| 646 | handle_level_irq); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 647 | set_irq_flags(irqno, IRQF_VALID); |
| 648 | } |
| 649 | |
| 650 | for (irqno = IRQ_S3CUART_RX1; irqno <= IRQ_S3CUART_ERR1; irqno++) { |
| 651 | irqdbf("registering irq %d (s3c uart1 irq)\n", irqno); |
Thomas Gleixner | f38c02f | 2011-03-24 13:35:09 +0100 | [diff] [blame] | 652 | irq_set_chip_and_handler(irqno, &s3c_irq_uart1, |
| 653 | handle_level_irq); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 654 | set_irq_flags(irqno, IRQF_VALID); |
| 655 | } |
| 656 | |
| 657 | for (irqno = IRQ_S3CUART_RX2; irqno <= IRQ_S3CUART_ERR2; irqno++) { |
| 658 | irqdbf("registering irq %d (s3c uart2 irq)\n", irqno); |
Thomas Gleixner | f38c02f | 2011-03-24 13:35:09 +0100 | [diff] [blame] | 659 | irq_set_chip_and_handler(irqno, &s3c_irq_uart2, |
| 660 | handle_level_irq); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 661 | set_irq_flags(irqno, IRQF_VALID); |
| 662 | } |
| 663 | |
| 664 | for (irqno = IRQ_TC; irqno <= IRQ_ADC; irqno++) { |
| 665 | irqdbf("registering irq %d (s3c adc irq)\n", irqno); |
Thomas Gleixner | f38c02f | 2011-03-24 13:35:09 +0100 | [diff] [blame] | 666 | irq_set_chip_and_handler(irqno, &s3c_irq_adc, handle_edge_irq); |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 667 | set_irq_flags(irqno, IRQF_VALID); |
| 668 | } |
| 669 | |
| 670 | irqdbf("s3c2410: registered interrupt handlers\n"); |
| 671 | } |
Heiko Stuebner | de11c58 | 2011-06-02 12:57:41 +0200 | [diff] [blame^] | 672 | |
| 673 | struct syscore_ops s3c24xx_irq_syscore_ops = { |
| 674 | .suspend = s3c24xx_irq_suspend, |
| 675 | .resume = s3c24xx_irq_resume, |
| 676 | }; |