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Diffstat (limited to 'arch/arm/plat-omap/gpio.c')
-rw-r--r--arch/arm/plat-omap/gpio.c134
1 files changed, 100 insertions, 34 deletions
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index ee0b21f5b094..7fd89ba8d3b5 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -6,6 +6,9 @@
6 * Copyright (C) 2003-2005 Nokia Corporation 6 * Copyright (C) 2003-2005 Nokia Corporation
7 * Written by Juha Yrjölä <juha.yrjola@nokia.com> 7 * Written by Juha Yrjölä <juha.yrjola@nokia.com>
8 * 8 *
9 * Copyright (C) 2009 Texas Instruments
10 * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
11 *
9 * This program is free software; you can redistribute it and/or modify 12 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as 13 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation. 14 * published by the Free Software Foundation.
@@ -146,6 +149,16 @@
146#define OMAP34XX_GPIO5_BASE IO_ADDRESS(0x49056000) 149#define OMAP34XX_GPIO5_BASE IO_ADDRESS(0x49056000)
147#define OMAP34XX_GPIO6_BASE IO_ADDRESS(0x49058000) 150#define OMAP34XX_GPIO6_BASE IO_ADDRESS(0x49058000)
148 151
152/*
153 * OMAP44XX specific GPIO registers
154 */
155#define OMAP44XX_GPIO1_BASE IO_ADDRESS(0x4a310000)
156#define OMAP44XX_GPIO2_BASE IO_ADDRESS(0x48055000)
157#define OMAP44XX_GPIO3_BASE IO_ADDRESS(0x48057000)
158#define OMAP44XX_GPIO4_BASE IO_ADDRESS(0x48059000)
159#define OMAP44XX_GPIO5_BASE IO_ADDRESS(0x4805B000)
160#define OMAP44XX_GPIO6_BASE IO_ADDRESS(0x4805D000)
161
149#define OMAP_MPUIO_VBASE IO_ADDRESS(OMAP_MPUIO_BASE) 162#define OMAP_MPUIO_VBASE IO_ADDRESS(OMAP_MPUIO_BASE)
150 163
151struct gpio_bank { 164struct gpio_bank {
@@ -153,11 +166,13 @@ struct gpio_bank {
153 u16 irq; 166 u16 irq;
154 u16 virtual_irq_start; 167 u16 virtual_irq_start;
155 int method; 168 int method;
156#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 169#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP24XX) || \
170 defined(CONFIG_ARCH_OMAP34XX) || defined(CONFIG_ARCH_OMAP4)
157 u32 suspend_wakeup; 171 u32 suspend_wakeup;
158 u32 saved_wakeup; 172 u32 saved_wakeup;
159#endif 173#endif
160#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 174#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
175 defined(CONFIG_ARCH_OMAP4)
161 u32 non_wakeup_gpios; 176 u32 non_wakeup_gpios;
162 u32 enabled_non_wakeup_gpios; 177 u32 enabled_non_wakeup_gpios;
163 178
@@ -251,6 +266,24 @@ static struct gpio_bank gpio_bank_34xx[6] = {
251 266
252#endif 267#endif
253 268
269#ifdef CONFIG_ARCH_OMAP4
270static struct gpio_bank gpio_bank_44xx[6] = {
271 { OMAP44XX_GPIO1_BASE, INT_44XX_GPIO_BANK1, IH_GPIO_BASE, \
272 METHOD_GPIO_24XX },
273 { OMAP44XX_GPIO2_BASE, INT_44XX_GPIO_BANK2, IH_GPIO_BASE + 32, \
274 METHOD_GPIO_24XX },
275 { OMAP44XX_GPIO3_BASE, INT_44XX_GPIO_BANK3, IH_GPIO_BASE + 64, \
276 METHOD_GPIO_24XX },
277 { OMAP44XX_GPIO4_BASE, INT_44XX_GPIO_BANK4, IH_GPIO_BASE + 96, \
278 METHOD_GPIO_24XX },
279 { OMAP44XX_GPIO5_BASE, INT_44XX_GPIO_BANK5, IH_GPIO_BASE + 128, \
280 METHOD_GPIO_24XX },
281 { OMAP44XX_GPIO6_BASE, INT_44XX_GPIO_BANK6, IH_GPIO_BASE + 160, \
282 METHOD_GPIO_24XX },
283};
284
285#endif
286
254static struct gpio_bank *gpio_bank; 287static struct gpio_bank *gpio_bank;
255static int gpio_bank_count; 288static int gpio_bank_count;
256 289
@@ -273,7 +306,7 @@ static inline struct gpio_bank *get_gpio_bank(int gpio)
273 } 306 }
274 if (cpu_is_omap24xx()) 307 if (cpu_is_omap24xx())
275 return &gpio_bank[gpio >> 5]; 308 return &gpio_bank[gpio >> 5];
276 if (cpu_is_omap34xx()) 309 if (cpu_is_omap34xx() || cpu_is_omap44xx())
277 return &gpio_bank[gpio >> 5]; 310 return &gpio_bank[gpio >> 5];
278 BUG(); 311 BUG();
279 return NULL; 312 return NULL;
@@ -285,7 +318,7 @@ static inline int get_gpio_index(int gpio)
285 return gpio & 0x1f; 318 return gpio & 0x1f;
286 if (cpu_is_omap24xx()) 319 if (cpu_is_omap24xx())
287 return gpio & 0x1f; 320 return gpio & 0x1f;
288 if (cpu_is_omap34xx()) 321 if (cpu_is_omap34xx() || cpu_is_omap44xx())
289 return gpio & 0x1f; 322 return gpio & 0x1f;
290 return gpio & 0x0f; 323 return gpio & 0x0f;
291} 324}
@@ -307,7 +340,7 @@ static inline int gpio_valid(int gpio)
307 return 0; 340 return 0;
308 if (cpu_is_omap24xx() && gpio < 128) 341 if (cpu_is_omap24xx() && gpio < 128)
309 return 0; 342 return 0;
310 if (cpu_is_omap34xx() && gpio < 192) 343 if ((cpu_is_omap34xx() || cpu_is_omap44xx()) && gpio < 192)
311 return 0; 344 return 0;
312 return -1; 345 return -1;
313} 346}
@@ -353,7 +386,8 @@ static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input)
353 reg += OMAP850_GPIO_DIR_CONTROL; 386 reg += OMAP850_GPIO_DIR_CONTROL;
354 break; 387 break;
355#endif 388#endif
356#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 389#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
390 defined(CONFIG_ARCH_OMAP4)
357 case METHOD_GPIO_24XX: 391 case METHOD_GPIO_24XX:
358 reg += OMAP24XX_GPIO_OE; 392 reg += OMAP24XX_GPIO_OE;
359 break; 393 break;
@@ -425,7 +459,8 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable)
425 l &= ~(1 << gpio); 459 l &= ~(1 << gpio);
426 break; 460 break;
427#endif 461#endif
428#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 462#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
463 defined(CONFIG_ARCH_OMAP4)
429 case METHOD_GPIO_24XX: 464 case METHOD_GPIO_24XX:
430 if (enable) 465 if (enable)
431 reg += OMAP24XX_GPIO_SETDATAOUT; 466 reg += OMAP24XX_GPIO_SETDATAOUT;
@@ -476,7 +511,8 @@ static int __omap_get_gpio_datain(int gpio)
476 reg += OMAP850_GPIO_DATA_INPUT; 511 reg += OMAP850_GPIO_DATA_INPUT;
477 break; 512 break;
478#endif 513#endif
479#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 514#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
515 defined(CONFIG_ARCH_OMAP4)
480 case METHOD_GPIO_24XX: 516 case METHOD_GPIO_24XX:
481 reg += OMAP24XX_GPIO_DATAIN; 517 reg += OMAP24XX_GPIO_DATAIN;
482 break; 518 break;
@@ -520,7 +556,7 @@ void omap_set_gpio_debounce(int gpio, int enable)
520 else 556 else
521 goto done; 557 goto done;
522 558
523 if (cpu_is_omap34xx()) { 559 if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
524 if (enable) 560 if (enable)
525 clk_enable(bank->dbck); 561 clk_enable(bank->dbck);
526 else 562 else
@@ -550,7 +586,8 @@ void omap_set_gpio_debounce_time(int gpio, int enc_time)
550} 586}
551EXPORT_SYMBOL(omap_set_gpio_debounce_time); 587EXPORT_SYMBOL(omap_set_gpio_debounce_time);
552 588
553#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 589#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
590 defined(CONFIG_ARCH_OMAP4)
554static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio, 591static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio,
555 int trigger) 592 int trigger)
556{ 593{
@@ -660,7 +697,8 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
660 goto bad; 697 goto bad;
661 break; 698 break;
662#endif 699#endif
663#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 700#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
701 defined(CONFIG_ARCH_OMAP4)
664 case METHOD_GPIO_24XX: 702 case METHOD_GPIO_24XX:
665 set_24xx_gpio_triggering(bank, gpio, trigger); 703 set_24xx_gpio_triggering(bank, gpio, trigger);
666 break; 704 break;
@@ -745,7 +783,8 @@ static void _clear_gpio_irqbank(struct gpio_bank *bank, int gpio_mask)
745 reg += OMAP850_GPIO_INT_STATUS; 783 reg += OMAP850_GPIO_INT_STATUS;
746 break; 784 break;
747#endif 785#endif
748#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 786#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
787 defined(CONFIG_ARCH_OMAP4)
749 case METHOD_GPIO_24XX: 788 case METHOD_GPIO_24XX:
750 reg += OMAP24XX_GPIO_IRQSTATUS1; 789 reg += OMAP24XX_GPIO_IRQSTATUS1;
751 break; 790 break;
@@ -814,7 +853,8 @@ static u32 _get_gpio_irqbank_mask(struct gpio_bank *bank)
814 inv = 1; 853 inv = 1;
815 break; 854 break;
816#endif 855#endif
817#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 856#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
857 defined(CONFIG_ARCH_OMAP4)
818 case METHOD_GPIO_24XX: 858 case METHOD_GPIO_24XX:
819 reg += OMAP24XX_GPIO_IRQENABLE1; 859 reg += OMAP24XX_GPIO_IRQENABLE1;
820 mask = 0xffffffff; 860 mask = 0xffffffff;
@@ -887,7 +927,8 @@ static void _enable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask, int enab
887 l |= gpio_mask; 927 l |= gpio_mask;
888 break; 928 break;
889#endif 929#endif
890#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 930#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
931 defined(CONFIG_ARCH_OMAP4)
891 case METHOD_GPIO_24XX: 932 case METHOD_GPIO_24XX:
892 if (enable) 933 if (enable)
893 reg += OMAP24XX_GPIO_SETIRQENABLE1; 934 reg += OMAP24XX_GPIO_SETIRQENABLE1;
@@ -932,7 +973,8 @@ static int _set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable)
932 spin_unlock_irqrestore(&bank->lock, flags); 973 spin_unlock_irqrestore(&bank->lock, flags);
933 return 0; 974 return 0;
934#endif 975#endif
935#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 976#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
977 defined(CONFIG_ARCH_OMAP4)
936 case METHOD_GPIO_24XX: 978 case METHOD_GPIO_24XX:
937 if (bank->non_wakeup_gpios & (1 << gpio)) { 979 if (bank->non_wakeup_gpios & (1 << gpio)) {
938 printk(KERN_ERR "Unable to modify wakeup on " 980 printk(KERN_ERR "Unable to modify wakeup on "
@@ -1017,7 +1059,8 @@ static void omap_gpio_free(struct gpio_chip *chip, unsigned offset)
1017 __raw_writel(1 << offset, reg); 1059 __raw_writel(1 << offset, reg);
1018 } 1060 }
1019#endif 1061#endif
1020#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 1062#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
1063 defined(CONFIG_ARCH_OMAP4)
1021 if (bank->method == METHOD_GPIO_24XX) { 1064 if (bank->method == METHOD_GPIO_24XX) {
1022 /* Disable wake-up during idle for dynamic tick */ 1065 /* Disable wake-up during idle for dynamic tick */
1023 void __iomem *reg = bank->base + OMAP24XX_GPIO_CLEARWKUENA; 1066 void __iomem *reg = bank->base + OMAP24XX_GPIO_CLEARWKUENA;
@@ -1069,7 +1112,8 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
1069 if (bank->method == METHOD_GPIO_850) 1112 if (bank->method == METHOD_GPIO_850)
1070 isr_reg = bank->base + OMAP850_GPIO_INT_STATUS; 1113 isr_reg = bank->base + OMAP850_GPIO_INT_STATUS;
1071#endif 1114#endif
1072#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 1115#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
1116 defined(CONFIG_ARCH_OMAP4)
1073 if (bank->method == METHOD_GPIO_24XX) 1117 if (bank->method == METHOD_GPIO_24XX)
1074 isr_reg = bank->base + OMAP24XX_GPIO_IRQSTATUS1; 1118 isr_reg = bank->base + OMAP24XX_GPIO_IRQSTATUS1;
1075#endif 1119#endif
@@ -1346,7 +1390,7 @@ static int gpio_2irq(struct gpio_chip *chip, unsigned offset)
1346/*---------------------------------------------------------------------*/ 1390/*---------------------------------------------------------------------*/
1347 1391
1348static int initialized; 1392static int initialized;
1349#if !defined(CONFIG_ARCH_OMAP3) 1393#if !(defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4))
1350static struct clk * gpio_ick; 1394static struct clk * gpio_ick;
1351#endif 1395#endif
1352 1396
@@ -1359,7 +1403,7 @@ static struct clk * gpio5_ick;
1359static struct clk * gpio5_fck; 1403static struct clk * gpio5_fck;
1360#endif 1404#endif
1361 1405
1362#if defined(CONFIG_ARCH_OMAP3) 1406#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
1363static struct clk *gpio_iclks[OMAP34XX_NR_GPIOS]; 1407static struct clk *gpio_iclks[OMAP34XX_NR_GPIOS];
1364#endif 1408#endif
1365 1409
@@ -1419,8 +1463,8 @@ static int __init _omap_gpio_init(void)
1419 } 1463 }
1420#endif 1464#endif
1421 1465
1422#if defined(CONFIG_ARCH_OMAP3) 1466#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4)
1423 if (cpu_is_omap34xx()) { 1467 if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
1424 for (i = 0; i < OMAP34XX_NR_GPIOS; i++) { 1468 for (i = 0; i < OMAP34XX_NR_GPIOS; i++) {
1425 sprintf(clk_name, "gpio%d_ick", i + 1); 1469 sprintf(clk_name, "gpio%d_ick", i + 1);
1426 gpio_iclks[i] = clk_get(NULL, clk_name); 1470 gpio_iclks[i] = clk_get(NULL, clk_name);
@@ -1497,6 +1541,17 @@ static int __init _omap_gpio_init(void)
1497 (rev >> 4) & 0x0f, rev & 0x0f); 1541 (rev >> 4) & 0x0f, rev & 0x0f);
1498 } 1542 }
1499#endif 1543#endif
1544#ifdef CONFIG_ARCH_OMAP4
1545 if (cpu_is_omap44xx()) {
1546 int rev;
1547
1548 gpio_bank_count = OMAP34XX_NR_GPIOS;
1549 gpio_bank = gpio_bank_44xx;
1550 rev = __raw_readl(gpio_bank[0].base + OMAP24XX_GPIO_REVISION);
1551 printk(KERN_INFO "OMAP44xx GPIO hardware version %d.%d\n",
1552 (rev >> 4) & 0x0f, rev & 0x0f);
1553 }
1554#endif
1500 for (i = 0; i < gpio_bank_count; i++) { 1555 for (i = 0; i < gpio_bank_count; i++) {
1501 int j, gpio_count = 16; 1556 int j, gpio_count = 16;
1502 1557
@@ -1520,7 +1575,8 @@ static int __init _omap_gpio_init(void)
1520 gpio_count = 32; /* 730 has 32-bit GPIOs */ 1575 gpio_count = 32; /* 730 has 32-bit GPIOs */
1521 } 1576 }
1522 1577
1523#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 1578#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
1579 defined(CONFIG_ARCH_OMAP4)
1524 if (bank->method == METHOD_GPIO_24XX) { 1580 if (bank->method == METHOD_GPIO_24XX) {
1525 static const u32 non_wakeup_gpios[] = { 1581 static const u32 non_wakeup_gpios[] = {
1526 0xe203ffc0, 0x08700040 1582 0xe203ffc0, 0x08700040
@@ -1577,7 +1633,7 @@ static int __init _omap_gpio_init(void)
1577 set_irq_chained_handler(bank->irq, gpio_irq_handler); 1633 set_irq_chained_handler(bank->irq, gpio_irq_handler);
1578 set_irq_data(bank->irq, bank); 1634 set_irq_data(bank->irq, bank);
1579 1635
1580 if (cpu_is_omap34xx()) { 1636 if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
1581 sprintf(clk_name, "gpio%d_dbck", i + 1); 1637 sprintf(clk_name, "gpio%d_dbck", i + 1);
1582 bank->dbck = clk_get(NULL, clk_name); 1638 bank->dbck = clk_get(NULL, clk_name);
1583 if (IS_ERR(bank->dbck)) 1639 if (IS_ERR(bank->dbck))
@@ -1599,7 +1655,8 @@ static int __init _omap_gpio_init(void)
1599 return 0; 1655 return 0;
1600} 1656}
1601 1657
1602#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 1658#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP24XX) || \
1659 defined(CONFIG_ARCH_OMAP34XX) || defined(CONFIG_ARCH_OMAP4)
1603static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg) 1660static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg)
1604{ 1661{
1605 int i; 1662 int i;
@@ -1622,7 +1679,8 @@ static int omap_gpio_suspend(struct sys_device *dev, pm_message_t mesg)
1622 wake_set = bank->base + OMAP1610_GPIO_SET_WAKEUPENA; 1679 wake_set = bank->base + OMAP1610_GPIO_SET_WAKEUPENA;
1623 break; 1680 break;
1624#endif 1681#endif
1625#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 1682#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
1683 defined(CONFIG_ARCH_OMAP4)
1626 case METHOD_GPIO_24XX: 1684 case METHOD_GPIO_24XX:
1627 wake_status = bank->base + OMAP24XX_GPIO_WAKE_EN; 1685 wake_status = bank->base + OMAP24XX_GPIO_WAKE_EN;
1628 wake_clear = bank->base + OMAP24XX_GPIO_CLEARWKUENA; 1686 wake_clear = bank->base + OMAP24XX_GPIO_CLEARWKUENA;
@@ -1663,7 +1721,8 @@ static int omap_gpio_resume(struct sys_device *dev)
1663 wake_set = bank->base + OMAP1610_GPIO_SET_WAKEUPENA; 1721 wake_set = bank->base + OMAP1610_GPIO_SET_WAKEUPENA;
1664 break; 1722 break;
1665#endif 1723#endif
1666#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 1724#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
1725 defined(CONFIG_ARCH_OMAP4)
1667 case METHOD_GPIO_24XX: 1726 case METHOD_GPIO_24XX:
1668 wake_clear = bank->base + OMAP24XX_GPIO_CLEARWKUENA; 1727 wake_clear = bank->base + OMAP24XX_GPIO_CLEARWKUENA;
1669 wake_set = bank->base + OMAP24XX_GPIO_SETWKUENA; 1728 wake_set = bank->base + OMAP24XX_GPIO_SETWKUENA;
@@ -1695,7 +1754,8 @@ static struct sys_device omap_gpio_device = {
1695 1754
1696#endif 1755#endif
1697 1756
1698#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 1757#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
1758 defined(CONFIG_ARCH_OMAP4)
1699 1759
1700static int workaround_enabled; 1760static int workaround_enabled;
1701 1761
@@ -1711,7 +1771,8 @@ void omap2_gpio_prepare_for_retention(void)
1711 1771
1712 if (!(bank->enabled_non_wakeup_gpios)) 1772 if (!(bank->enabled_non_wakeup_gpios))
1713 continue; 1773 continue;
1714#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 1774#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
1775 defined(CONFIG_ARCH_OMAP4)
1715 bank->saved_datain = __raw_readl(bank->base + OMAP24XX_GPIO_DATAIN); 1776 bank->saved_datain = __raw_readl(bank->base + OMAP24XX_GPIO_DATAIN);
1716 l1 = __raw_readl(bank->base + OMAP24XX_GPIO_FALLINGDETECT); 1777 l1 = __raw_readl(bank->base + OMAP24XX_GPIO_FALLINGDETECT);
1717 l2 = __raw_readl(bank->base + OMAP24XX_GPIO_RISINGDETECT); 1778 l2 = __raw_readl(bank->base + OMAP24XX_GPIO_RISINGDETECT);
@@ -1720,7 +1781,8 @@ void omap2_gpio_prepare_for_retention(void)
1720 bank->saved_risingdetect = l2; 1781 bank->saved_risingdetect = l2;
1721 l1 &= ~bank->enabled_non_wakeup_gpios; 1782 l1 &= ~bank->enabled_non_wakeup_gpios;
1722 l2 &= ~bank->enabled_non_wakeup_gpios; 1783 l2 &= ~bank->enabled_non_wakeup_gpios;
1723#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 1784#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
1785 defined(CONFIG_ARCH_OMAP4)
1724 __raw_writel(l1, bank->base + OMAP24XX_GPIO_FALLINGDETECT); 1786 __raw_writel(l1, bank->base + OMAP24XX_GPIO_FALLINGDETECT);
1725 __raw_writel(l2, bank->base + OMAP24XX_GPIO_RISINGDETECT); 1787 __raw_writel(l2, bank->base + OMAP24XX_GPIO_RISINGDETECT);
1726#endif 1788#endif
@@ -1745,7 +1807,8 @@ void omap2_gpio_resume_after_retention(void)
1745 1807
1746 if (!(bank->enabled_non_wakeup_gpios)) 1808 if (!(bank->enabled_non_wakeup_gpios))
1747 continue; 1809 continue;
1748#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 1810#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
1811 defined(CONFIG_ARCH_OMAP4)
1749 __raw_writel(bank->saved_fallingdetect, 1812 __raw_writel(bank->saved_fallingdetect,
1750 bank->base + OMAP24XX_GPIO_FALLINGDETECT); 1813 bank->base + OMAP24XX_GPIO_FALLINGDETECT);
1751 __raw_writel(bank->saved_risingdetect, 1814 __raw_writel(bank->saved_risingdetect,
@@ -1755,14 +1818,16 @@ void omap2_gpio_resume_after_retention(void)
1755 * state. If so, generate an IRQ by software. This is 1818 * state. If so, generate an IRQ by software. This is
1756 * horribly racy, but it's the best we can do to work around 1819 * horribly racy, but it's the best we can do to work around
1757 * this silicon bug. */ 1820 * this silicon bug. */
1758#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 1821#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
1822 defined(CONFIG_ARCH_OMAP4)
1759 l = __raw_readl(bank->base + OMAP24XX_GPIO_DATAIN); 1823 l = __raw_readl(bank->base + OMAP24XX_GPIO_DATAIN);
1760#endif 1824#endif
1761 l ^= bank->saved_datain; 1825 l ^= bank->saved_datain;
1762 l &= bank->non_wakeup_gpios; 1826 l &= bank->non_wakeup_gpios;
1763 if (l) { 1827 if (l) {
1764 u32 old0, old1; 1828 u32 old0, old1;
1765#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 1829#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) || \
1830 defined(CONFIG_ARCH_OMAP4)
1766 old0 = __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT0); 1831 old0 = __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT0);
1767 old1 = __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT1); 1832 old1 = __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT1);
1768 __raw_writel(old0 | l, bank->base + OMAP24XX_GPIO_LEVELDETECT0); 1833 __raw_writel(old0 | l, bank->base + OMAP24XX_GPIO_LEVELDETECT0);
@@ -1798,7 +1863,8 @@ static int __init omap_gpio_sysinit(void)
1798 1863
1799 mpuio_init(); 1864 mpuio_init();
1800 1865
1801#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX) 1866#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP24XX) || \
1867 defined(CONFIG_ARCH_OMAP34XX) || defined(CONFIG_ARCH_OMAP4)
1802 if (cpu_is_omap16xx() || cpu_class_is_omap2()) { 1868 if (cpu_is_omap16xx() || cpu_class_is_omap2()) {
1803 if (ret == 0) { 1869 if (ret == 0) {
1804 ret = sysdev_class_register(&omap_gpio_sysclass); 1870 ret = sysdev_class_register(&omap_gpio_sysclass);
@@ -1887,7 +1953,7 @@ static int dbg_gpio_show(struct seq_file *s, void *unused)
1887 1953
1888 irqstat = irq_desc[irq].status; 1954 irqstat = irq_desc[irq].status;
1889#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP24XX) || \ 1955#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP24XX) || \
1890 defined(CONFIG_ARCH_OMAP34XX) 1956 defined(CONFIG_ARCH_OMAP34XX) || defined(CONFIG_ARCH_OMAP4)
1891 if (is_in && ((bank->suspend_wakeup & mask) 1957 if (is_in && ((bank->suspend_wakeup & mask)
1892 || irqstat & IRQ_TYPE_SENSE_MASK)) { 1958 || irqstat & IRQ_TYPE_SENSE_MASK)) {
1893 char *trigger = NULL; 1959 char *trigger = NULL;
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-18 16:56:17 -0500