diff options
Diffstat (limited to 'drivers/gpio')
-rw-r--r-- | drivers/gpio/Kconfig | 23 | ||||
-rw-r--r-- | drivers/gpio/Makefile | 2 | ||||
-rw-r--r-- | drivers/gpio/gpio-74xx-mmio.c | 170 | ||||
-rw-r--r-- | drivers/gpio/gpio-amd8111.c | 1 | ||||
-rw-r--r-- | drivers/gpio/gpio-bcm-kona.c | 4 | ||||
-rw-r--r-- | drivers/gpio/gpio-cs5535.c | 11 | ||||
-rw-r--r-- | drivers/gpio/gpio-davinci.c | 5 | ||||
-rw-r--r-- | drivers/gpio/gpio-dwapb.c | 4 | ||||
-rw-r--r-- | drivers/gpio/gpio-em.c | 11 | ||||
-rw-r--r-- | drivers/gpio/gpio-grgpio.c | 1 | ||||
-rw-r--r-- | drivers/gpio/gpio-mcp23s08.c | 41 | ||||
-rw-r--r-- | drivers/gpio/gpio-mpc8xxx.c | 27 | ||||
-rw-r--r-- | drivers/gpio/gpio-mvebu.c | 99 | ||||
-rw-r--r-- | drivers/gpio/gpio-mxs.c | 13 | ||||
-rw-r--r-- | drivers/gpio/gpio-omap.c | 2 | ||||
-rw-r--r-- | drivers/gpio/gpio-pl061.c | 20 | ||||
-rw-r--r-- | drivers/gpio/gpio-rcar.c | 27 | ||||
-rw-r--r-- | drivers/gpio/gpio-stp-xway.c | 8 | ||||
-rw-r--r-- | drivers/gpio/gpio-tb10x.c | 7 | ||||
-rw-r--r-- | drivers/gpio/gpio-tegra.c | 4 | ||||
-rw-r--r-- | drivers/gpio/gpio-vf610.c | 295 | ||||
-rw-r--r-- | drivers/gpio/gpio-vr41xx.c | 4 | ||||
-rw-r--r-- | drivers/gpio/gpiolib-acpi.c | 6 | ||||
-rw-r--r-- | drivers/gpio/gpiolib-legacy.c | 12 | ||||
-rw-r--r-- | drivers/gpio/gpiolib-sysfs.c | 6 | ||||
-rw-r--r-- | drivers/gpio/gpiolib.c | 241 |
26 files changed, 941 insertions, 103 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 23dfd5f59b39..633ec216e185 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -112,6 +112,20 @@ config GPIO_MAX730X comment "Memory mapped GPIO drivers:" +config GPIO_74XX_MMIO + tristate "GPIO driver for 74xx-ICs with MMIO access" + depends on OF_GPIO + select GPIO_GENERIC + help + Say yes here to support GPIO functionality for 74xx-compatible ICs + with MMIO access. Compatible models include: + 1 bit: 741G125 (Input), 741G74 (Output) + 2 bits: 742G125 (Input), 7474 (Output) + 4 bits: 74125 (Input), 74175 (Output) + 6 bits: 74365 (Input), 74174 (Output) + 8 bits: 74244 (Input), 74273 (Output) + 16 bits: 741624 (Input), 7416374 (Output) + config GPIO_CLPS711X tristate "CLPS711X GPIO support" depends on ARCH_CLPS711X || COMPILE_TEST @@ -134,6 +148,8 @@ config GPIO_GENERIC_PLATFORM config GPIO_DWAPB tristate "Synopsys DesignWare APB GPIO driver" + depends on ARM + depends on OF_GPIO select GPIO_GENERIC select GENERIC_IRQ_CHIP help @@ -333,6 +349,13 @@ config GPIO_TZ1090_PDC help Say yes here to support Toumaz Xenif TZ1090 PDC GPIOs. +config GPIO_VF610 + def_bool y + depends on ARCH_MXC && SOC_VF610 + select GPIOLIB_IRQCHIP + help + Say yes here to support Vybrid vf610 GPIOs. + config GPIO_XGENE bool "APM X-Gene GPIO controller support" depends on ARM64 && OF_GPIO diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index e60677b8ccb4..81755f1305e6 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -13,6 +13,7 @@ obj-$(CONFIG_GPIO_ACPI) += gpiolib-acpi.o obj-$(CONFIG_GPIO_GENERIC) += gpio-generic.o obj-$(CONFIG_GPIO_74X164) += gpio-74x164.o +obj-$(CONFIG_GPIO_74XX_MMIO) += gpio-74xx-mmio.o obj-$(CONFIG_GPIO_ADNP) += gpio-adnp.o obj-$(CONFIG_GPIO_ADP5520) += gpio-adp5520.o obj-$(CONFIG_GPIO_ADP5588) += gpio-adp5588.o @@ -96,6 +97,7 @@ obj-$(CONFIG_GPIO_TWL6040) += gpio-twl6040.o obj-$(CONFIG_GPIO_TZ1090) += gpio-tz1090.o obj-$(CONFIG_GPIO_TZ1090_PDC) += gpio-tz1090-pdc.o obj-$(CONFIG_GPIO_UCB1400) += gpio-ucb1400.o +obj-$(CONFIG_GPIO_VF610) += gpio-vf610.o obj-$(CONFIG_GPIO_VIPERBOARD) += gpio-viperboard.o obj-$(CONFIG_GPIO_VR41XX) += gpio-vr41xx.o obj-$(CONFIG_GPIO_VX855) += gpio-vx855.o diff --git a/drivers/gpio/gpio-74xx-mmio.c b/drivers/gpio/gpio-74xx-mmio.c new file mode 100644 index 000000000000..0763655cca6c --- /dev/null +++ b/drivers/gpio/gpio-74xx-mmio.c @@ -0,0 +1,170 @@ +/* + * 74xx MMIO GPIO driver + * + * Copyright (C) 2014 Alexander Shiyan <shc_work@mail.ru> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/err.h> +#include <linux/gpio.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/basic_mmio_gpio.h> +#include <linux/platform_device.h> + +#define MMIO_74XX_DIR_IN (0 << 8) +#define MMIO_74XX_DIR_OUT (1 << 8) +#define MMIO_74XX_BIT_CNT(x) ((x) & 0xff) + +struct mmio_74xx_gpio_priv { + struct bgpio_chip bgc; + unsigned flags; +}; + +static const struct of_device_id mmio_74xx_gpio_ids[] = { + { + .compatible = "ti,741g125", + .data = (const void *)(MMIO_74XX_DIR_IN | 1), + }, + { + .compatible = "ti,742g125", + .data = (const void *)(MMIO_74XX_DIR_IN | 2), + }, + { + .compatible = "ti,74125", + .data = (const void *)(MMIO_74XX_DIR_IN | 4), + }, + { + .compatible = "ti,74365", + .data = (const void *)(MMIO_74XX_DIR_IN | 6), + }, + { + .compatible = "ti,74244", + .data = (const void *)(MMIO_74XX_DIR_IN | 8), + }, + { + .compatible = "ti,741624", + .data = (const void *)(MMIO_74XX_DIR_IN | 16), + }, + { + .compatible = "ti,741g74", + .data = (const void *)(MMIO_74XX_DIR_OUT | 1), + }, + { + .compatible = "ti,7474", + .data = (const void *)(MMIO_74XX_DIR_OUT | 2), + }, + { + .compatible = "ti,74175", + .data = (const void *)(MMIO_74XX_DIR_OUT | 4), + }, + { + .compatible = "ti,74174", + .data = (const void *)(MMIO_74XX_DIR_OUT | 6), + }, + { + .compatible = "ti,74273", + .data = (const void *)(MMIO_74XX_DIR_OUT | 8), + }, + { + .compatible = "ti,7416374", + .data = (const void *)(MMIO_74XX_DIR_OUT | 16), + }, + { } +}; +MODULE_DEVICE_TABLE(of, mmio_74xx_gpio_ids); + +static inline struct mmio_74xx_gpio_priv *to_74xx_gpio(struct gpio_chip *gc) +{ + struct bgpio_chip *bgc = to_bgpio_chip(gc); + + return container_of(bgc, struct mmio_74xx_gpio_priv, bgc); +} + +static int mmio_74xx_get_direction(struct gpio_chip *gc, unsigned offset) +{ + struct mmio_74xx_gpio_priv *priv = to_74xx_gpio(gc); + + return (priv->flags & MMIO_74XX_DIR_OUT) ? GPIOF_DIR_OUT : GPIOF_DIR_IN; +} + +static int mmio_74xx_dir_in(struct gpio_chip *gc, unsigned int gpio) +{ + struct mmio_74xx_gpio_priv *priv = to_74xx_gpio(gc); + + return (priv->flags & MMIO_74XX_DIR_OUT) ? -ENOTSUPP : 0; +} + +static int mmio_74xx_dir_out(struct gpio_chip *gc, unsigned int gpio, int val) +{ + struct mmio_74xx_gpio_priv *priv = to_74xx_gpio(gc); + + if (priv->flags & MMIO_74XX_DIR_OUT) { + gc->set(gc, gpio, val); + return 0; + } + + return -ENOTSUPP; +} + +static int mmio_74xx_gpio_probe(struct platform_device *pdev) +{ + const struct of_device_id *of_id = + of_match_device(mmio_74xx_gpio_ids, &pdev->dev); + struct mmio_74xx_gpio_priv *priv; + struct resource *res; + void __iomem *dat; + int err; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + dat = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(dat)) + return PTR_ERR(dat); + + priv->flags = (unsigned)of_id->data; + + err = bgpio_init(&priv->bgc, &pdev->dev, + DIV_ROUND_UP(MMIO_74XX_BIT_CNT(priv->flags), 8), + dat, NULL, NULL, NULL, NULL, 0); + if (err) + return err; + + priv->bgc.gc.direction_input = mmio_74xx_dir_in; + priv->bgc.gc.direction_output = mmio_74xx_dir_out; + priv->bgc.gc.get_direction = mmio_74xx_get_direction; + priv->bgc.gc.ngpio = MMIO_74XX_BIT_CNT(priv->flags); + priv->bgc.gc.owner = THIS_MODULE; + + platform_set_drvdata(pdev, priv); + + return gpiochip_add(&priv->bgc.gc); +} + +static int mmio_74xx_gpio_remove(struct platform_device *pdev) +{ + struct mmio_74xx_gpio_priv *priv = platform_get_drvdata(pdev); + + return bgpio_remove(&priv->bgc); +} + +static struct platform_driver mmio_74xx_gpio_driver = { + .driver = { + .name = "74xx-mmio-gpio", + .of_match_table = mmio_74xx_gpio_ids, + }, + .probe = mmio_74xx_gpio_probe, + .remove = mmio_74xx_gpio_remove, +}; +module_platform_driver(mmio_74xx_gpio_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Alexander Shiyan <shc_work@mail.ru>"); +MODULE_DESCRIPTION("74xx MMIO GPIO driver"); diff --git a/drivers/gpio/gpio-amd8111.c b/drivers/gpio/gpio-amd8111.c index 3c09f1a6872a..d3d2d1099f64 100644 --- a/drivers/gpio/gpio-amd8111.c +++ b/drivers/gpio/gpio-amd8111.c @@ -223,6 +223,7 @@ found: if (err) { printk(KERN_ERR "GPIO registering failed (%d)\n", err); + ioport_unmap(gp.pm); release_region(gp.pmbase + PMBASE_OFFSET, PMBASE_SIZE); goto out; } diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c index de0801e9767a..56fb5ce47aa1 100644 --- a/drivers/gpio/gpio-bcm-kona.c +++ b/drivers/gpio/gpio-bcm-kona.c @@ -470,7 +470,7 @@ static int bcm_kona_gpio_irq_reqres(struct irq_data *d) { struct bcm_kona_gpio *kona_gpio = irq_data_get_irq_chip_data(d); - if (gpio_lock_as_irq(&kona_gpio->gpio_chip, d->hwirq)) { + if (gpiochip_lock_as_irq(&kona_gpio->gpio_chip, d->hwirq)) { dev_err(kona_gpio->gpio_chip.dev, "unable to lock HW IRQ %lu for IRQ\n", d->hwirq); @@ -483,7 +483,7 @@ static void bcm_kona_gpio_irq_relres(struct irq_data *d) { struct bcm_kona_gpio *kona_gpio = irq_data_get_irq_chip_data(d); - gpio_unlock_as_irq(&kona_gpio->gpio_chip, d->hwirq); + gpiochip_unlock_as_irq(&kona_gpio->gpio_chip, d->hwirq); } static struct irq_chip bcm_gpio_irq_chip = { diff --git a/drivers/gpio/gpio-cs5535.c b/drivers/gpio/gpio-cs5535.c index 668127fe90ef..71484eeb4ac2 100644 --- a/drivers/gpio/gpio-cs5535.c +++ b/drivers/gpio/gpio-cs5535.c @@ -322,7 +322,8 @@ static int cs5535_gpio_probe(struct platform_device *pdev) goto done; } - if (!request_region(res->start, resource_size(res), pdev->name)) { + if (!devm_request_region(&pdev->dev, res->start, resource_size(res), + pdev->name)) { dev_err(&pdev->dev, "can't request region\n"); goto done; } @@ -348,24 +349,18 @@ static int cs5535_gpio_probe(struct platform_device *pdev) /* finally, register with the generic GPIO API */ err = gpiochip_add(&cs5535_gpio_chip.chip); if (err) - goto release_region; + goto done; return 0; -release_region: - release_region(res->start, resource_size(res)); done: return err; } static int cs5535_gpio_remove(struct platform_device *pdev) { - struct resource *r; - gpiochip_remove(&cs5535_gpio_chip.chip); - r = platform_get_resource(pdev, IORESOURCE_IO, 0); - release_region(r->start, resource_size(r)); return 0; } diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c index 9f0682534e2f..3faf5f944ccc 100644 --- a/drivers/gpio/gpio-davinci.c +++ b/drivers/gpio/gpio-davinci.c @@ -234,11 +234,6 @@ static int davinci_gpio_probe(struct platform_device *pdev) return -ENOMEM; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "Invalid memory resource\n"); - return -EBUSY; - } - gpio_base = devm_ioremap_resource(dev, res); if (IS_ERR(gpio_base)) return PTR_ERR(gpio_base); diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c index b43cd84b61f1..4beb37839392 100644 --- a/drivers/gpio/gpio-dwapb.c +++ b/drivers/gpio/gpio-dwapb.c @@ -194,7 +194,7 @@ static int dwapb_irq_reqres(struct irq_data *d) struct dwapb_gpio *gpio = igc->private; struct bgpio_chip *bgc = &gpio->ports[0].bgc; - if (gpio_lock_as_irq(&bgc->gc, irqd_to_hwirq(d))) { + if (gpiochip_lock_as_irq(&bgc->gc, irqd_to_hwirq(d))) { dev_err(gpio->dev, "unable to lock HW IRQ %lu for IRQ\n", irqd_to_hwirq(d)); return -EINVAL; @@ -208,7 +208,7 @@ static void dwapb_irq_relres(struct irq_data *d) struct dwapb_gpio *gpio = igc->private; struct bgpio_chip *bgc = &gpio->ports[0].bgc; - gpio_unlock_as_irq(&bgc->gc, irqd_to_hwirq(d)); + gpiochip_unlock_as_irq(&bgc->gc, irqd_to_hwirq(d)); } static int dwapb_irq_set_type(struct irq_data *d, u32 type) diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c index fe49ec3cdb7d..c3434146f605 100644 --- a/drivers/gpio/gpio-em.c +++ b/drivers/gpio/gpio-em.c @@ -103,7 +103,7 @@ static int em_gio_irq_reqres(struct irq_data *d) { struct em_gio_priv *p = irq_data_get_irq_chip_data(d); - if (gpio_lock_as_irq(&p->gpio_chip, irqd_to_hwirq(d))) { + if (gpiochip_lock_as_irq(&p->gpio_chip, irqd_to_hwirq(d))) { dev_err(p->gpio_chip.dev, "unable to lock HW IRQ %lu for IRQ\n", irqd_to_hwirq(d)); @@ -116,7 +116,7 @@ static void em_gio_irq_relres(struct irq_data *d) { struct em_gio_priv *p = irq_data_get_irq_chip_data(d); - gpio_unlock_as_irq(&p->gpio_chip, irqd_to_hwirq(d)); + gpiochip_unlock_as_irq(&p->gpio_chip, irqd_to_hwirq(d)); } @@ -330,12 +330,7 @@ static int em_gio_probe(struct platform_device *pdev) goto err0; } - ret = of_alias_get_id(pdev->dev.of_node, "gpio"); - if (ret < 0) { - dev_err(&pdev->dev, "Couldn't get OF id\n"); - goto err0; - } - pdata->gpio_base = ret * 32; /* 32 GPIOs per instance */ + pdata->gpio_base = -1; } gpio_chip = &p->gpio_chip; diff --git a/drivers/gpio/gpio-grgpio.c b/drivers/gpio/gpio-grgpio.c index 66ad3df9d9cf..38acdcea9799 100644 --- a/drivers/gpio/gpio-grgpio.c +++ b/drivers/gpio/gpio-grgpio.c @@ -441,6 +441,7 @@ static int grgpio_probe(struct platform_device *ofdev) err = gpiochip_add(gc); if (err) { dev_err(&ofdev->dev, "Could not add gpiochip\n"); + irq_domain_remove(priv->domain); return err; } diff --git a/drivers/gpio/gpio-mcp23s08.c b/drivers/gpio/gpio-mcp23s08.c index 8488e2fd307c..da9c316059bc 100644 --- a/drivers/gpio/gpio-mcp23s08.c +++ b/drivers/gpio/gpio-mcp23s08.c @@ -65,6 +65,7 @@ struct mcp23s08_ops { struct mcp23s08 { u8 addr; + bool irq_active_high; u16 cache[11]; u16 irq_rise; @@ -444,7 +445,7 @@ static int mcp23s08_irq_reqres(struct irq_data *data) { struct mcp23s08 *mcp = irq_data_get_irq_chip_data(data); - if (gpio_lock_as_irq(&mcp->chip, data->hwirq)) { + if (gpiochip_lock_as_irq(&mcp->chip, data->hwirq)) { dev_err(mcp->chip.dev, "unable to lock HW IRQ %lu for IRQ usage\n", data->hwirq); @@ -458,7 +459,7 @@ static void mcp23s08_irq_relres(struct irq_data *data) { struct mcp23s08 *mcp = irq_data_get_irq_chip_data(data); - gpio_unlock_as_irq(&mcp->chip, data->hwirq); + gpiochip_unlock_as_irq(&mcp->chip, data->hwirq); } static struct irq_chip mcp23s08_irq_chip = { @@ -476,6 +477,7 @@ static int mcp23s08_irq_setup(struct mcp23s08 *mcp) { struct gpio_chip *chip = &mcp->chip; int err, irq, j; + unsigned long irqflags = IRQF_ONESHOT | IRQF_SHARED; mutex_init(&mcp->irq_lock); @@ -484,9 +486,13 @@ static int mcp23s08_irq_setup(struct mcp23s08 *mcp) if (!mcp->irq_domain) return -ENODEV; + if (mcp->irq_active_high) + irqflags |= IRQF_TRIGGER_HIGH; + else + irqflags |= IRQF_TRIGGER_LOW; + err = devm_request_threaded_irq(chip->dev, mcp->irq, NULL, mcp23s08_irq, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - dev_name(chip->dev), mcp); + irqflags, dev_name(chip->dev), mcp); if (err != 0) { dev_err(chip->dev, "unable to request IRQ#%d: %d\n", mcp->irq, err); @@ -514,8 +520,6 @@ static void mcp23s08_irq_teardown(struct mcp23s08 *mcp) { unsigned int irq, i; - free_irq(mcp->irq, mcp); - for (i = 0; i < mcp->chip.ngpio; i++) { irq = irq_find_mapping(mcp->irq_domain, i); if (irq > 0) @@ -590,6 +594,7 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev, mcp->data = data; mcp->addr = addr; + mcp->irq_active_high = false; mcp->chip.direction_input = mcp23s08_direction_input; mcp->chip.get = mcp23s08_get; @@ -649,14 +654,25 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev, goto fail; mcp->irq_controller = pdata->irq_controller; - if (mcp->irq && mcp->irq_controller && (type == MCP_TYPE_017)) - mirror = pdata->mirror; + if (mcp->irq && mcp->irq_controller) { + mcp->irq_active_high = + of_property_read_bool(mcp->chip.dev->of_node, + "microchip,irq-active-high"); - if ((status & IOCON_SEQOP) || !(status & IOCON_HAEN) || mirror) { + if (type == MCP_TYPE_017) + mirror = pdata->mirror; + } + + if ((status & IOCON_SEQOP) || !(status & IOCON_HAEN) || mirror || + mcp->irq_active_high) { /* mcp23s17 has IOCON twice, make sure they are in sync */ status &= ~(IOCON_SEQOP | (IOCON_SEQOP << 8)); status |= IOCON_HAEN | (IOCON_HAEN << 8); - status &= ~(IOCON_INTPOL | (IOCON_INTPOL << 8)); + if (mcp->irq_active_high) + status |= IOCON_INTPOL | (IOCON_INTPOL << 8); + else + status &= ~(IOCON_INTPOL | (IOCON_INTPOL << 8)); + if (mirror) status |= IOCON_MIRROR | (IOCON_MIRROR << 8); @@ -936,11 +952,14 @@ static int mcp23s08_probe(struct spi_device *spi) return -ENOMEM; spi_set_drvdata(spi, data); + spi->irq = irq_of_parse_and_map(spi->dev.of_node, 0); + for (addr = 0; addr < ARRAY_SIZE(pdata->chip); addr++) { if (!(spi_present_mask & (1 << addr))) continue; chips--; data->mcp[addr] = &data->chip[chips]; + data->mcp[addr]->irq = spi->irq; status = mcp23s08_probe_one(data->mcp[addr], &spi->dev, spi, 0x40 | (addr << 1), type, pdata, addr); @@ -981,6 +1000,8 @@ static int mcp23s08_remove(struct spi_device *spi) if (!data->mcp[addr]) continue; + if (spi->irq && data->mcp[addr]->irq_controller) + mcp23s08_irq_teardown(data->mcp[addr]); gpiochip_remove(&data->mcp[addr]->chip); } kfree(data); diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c index d7d6d72eba33..d1ff879e6ff2 100644 --- a/drivers/gpio/gpio-mpc8xxx.c +++ b/drivers/gpio/gpio-mpc8xxx.c @@ -105,6 +105,32 @@ static void mpc8xxx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val) spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); } +static void mpc8xxx_gpio_set_multiple(struct gpio_chip *gc, + unsigned long *mask, unsigned long *bits) +{ + struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); + struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm); + unsigned long flags; + int i; + + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + + for (i = 0; i < gc->ngpio; i++) { + if (*mask == 0) + break; + if (__test_and_clear_bit(i, mask)) { + if (test_bit(i, bits)) + mpc8xxx_gc->data |= mpc8xxx_gpio2mask(i); + else + mpc8xxx_gc->data &= ~mpc8xxx_gpio2mask(i); + } + } + + out_be32(mm->regs + GPIO_DAT, mpc8xxx_gc->data); + + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); +} + static int mpc8xxx_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio) { struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); @@ -344,6 +370,7 @@ static void __init mpc8xxx_add_controller(struct device_node *np) gc->get = of_device_is_compatible(np, "fsl,mpc8572-gpio") ? mpc8572_gpio_get : mpc8xxx_gpio_get; gc->set = mpc8xxx_gpio_set; + gc->set_multiple = mpc8xxx_gpio_set_multiple; gc->to_irq = mpc8xxx_gpio_to_irq; ret = of_mm_gpiochip_add(np, mm_gc); diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c index 418e38650363..dd5545c293d4 100644 --- a/drivers/gpio/gpio-mvebu.c +++ b/drivers/gpio/gpio-mvebu.c @@ -83,6 +83,14 @@ struct mvebu_gpio_chip { int irqbase; struct irq_domain *domain; int soc_variant; + + /* Used to preserve GPIO registers accross suspend/resume */ + u32 out_reg; + u32 io_conf_reg; + u32 blink_en_reg; + u32 in_pol_reg; + u32 edge_mask_regs[4]; + u32 level_mask_regs[4]; }; /* @@ -554,6 +562,93 @@ static const struct of_device_id mvebu_gpio_of_match[] = { }; MODULE_DEVICE_TABLE(of, mvebu_gpio_of_match); +static int mvebu_gpio_suspend(struct platform_device *pdev, pm_message_t state) +{ + struct mvebu_gpio_chip *mvchip = platform_get_drvdata(pdev); + int i; + + mvchip->out_reg = readl(mvebu_gpioreg_out(mvchip)); + mvchip->io_conf_reg = readl(mvebu_gpioreg_io_conf(mvchip)); + mvchip->blink_en_reg = readl(mvebu_gpioreg_blink(mvchip)); + mvchip->in_pol_reg = readl(mvebu_gpioreg_in_pol(mvchip)); + + switch (mvchip->soc_variant) { + case MVEBU_GPIO_SOC_VARIANT_ORION: + mvchip->edge_mask_regs[0] = + readl(mvchip->membase + GPIO_EDGE_MASK_OFF); + mvchip->level_mask_regs[0] = + readl(mvchip->membase + GPIO_LEVEL_MASK_OFF); + break; + case MVEBU_GPIO_SOC_VARIANT_MV78200: + for (i = 0; i < 2; i++) { + mvchip->edge_mask_regs[i] = + readl(mvchip->membase + + GPIO_EDGE_MASK_MV78200_OFF(i)); + mvchip->level_mask_regs[i] = + readl(mvchip->membase + + GPIO_LEVEL_MASK_MV78200_OFF(i)); + } + break; + case MVEBU_GPIO_SOC_VARIANT_ARMADAXP: + for (i = 0; i < 4; i++) { + mvchip->edge_mask_regs[i] = + readl(mvchip->membase + + GPIO_EDGE_MASK_ARMADAXP_OFF(i)); + mvchip->level_mask_regs[i] = + readl(mvchip->membase + + GPIO_LEVEL_MASK_ARMADAXP_OFF(i)); + } + break; + default: + BUG(); + } + + return 0; +} + +static int mvebu_gpio_resume(struct platform_device *pdev) +{ + struct mvebu_gpio_chip *mvchip = platform_get_drvdata(pdev); + int i; + + writel(mvchip->out_reg, mvebu_gpioreg_out(mvchip)); + writel(mvchip->io_conf_reg, mvebu_gpioreg_io_conf(mvchip)); + writel(mvchip->blink_en_reg, mvebu_gpioreg_blink(mvchip)); + writel(mvchip->in_pol_reg, mvebu_gpioreg_in_pol(mvchip)); + + switch (mvchip->soc_variant) { + case MVEBU_GPIO_SOC_VARIANT_ORION: + writel(mvchip->edge_mask_regs[0], + mvchip->membase + GPIO_EDGE_MASK_OFF); + writel(mvchip->level_mask_regs[0], + mvchip->membase + GPIO_LEVEL_MASK_OFF); + break; + case MVEBU_GPIO_SOC_VARIANT_MV78200: + for (i = 0; i < 2; i++) { + writel(mvchip->edge_mask_regs[i], + mvchip->membase + GPIO_EDGE_MASK_MV78200_OFF(i)); + writel(mvchip->level_mask_regs[i], + mvchip->membase + + GPIO_LEVEL_MASK_MV78200_OFF(i)); + } + break; + case MVEBU_GPIO_SOC_VARIANT_ARMADAXP: + for (i = 0; i < 4; i++) { + writel(mvchip->edge_mask_regs[i], + mvchip->membase + + GPIO_EDGE_MASK_ARMADAXP_OFF(i)); + writel(mvchip->level_mask_regs[i], + mvchip->membase + + GPIO_LEVEL_MASK_ARMADAXP_OFF(i)); + } + break; + default: + BUG(); + } + + return 0; +} + static int mvebu_gpio_probe(struct platform_device *pdev) { struct mvebu_gpio_chip *mvchip; @@ -577,6 +672,8 @@ static int mvebu_gpio_probe(struct platform_device *pdev) if (!mvchip) return -ENOMEM; + platform_set_drvdata(pdev, mvchip); + if (of_property_read_u32(pdev->dev.of_node, "ngpios", &ngpios)) { dev_err(&pdev->dev, "Missing ngpios OF property\n"); return -ENODEV; @@ -735,5 +832,7 @@ static struct platform_driver mvebu_gpio_driver = { .of_match_table = mvebu_gpio_of_match, }, .probe = mvebu_gpio_probe, + .suspend = mvebu_gpio_suspend, + .resume = mvebu_gpio_resume, }; module_platform_driver(mvebu_gpio_driver); diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c index 8ffdd7d2bade..56052c285714 100644 --- a/drivers/gpio/gpio-mxs.c +++ b/drivers/gpio/gpio-mxs.c @@ -227,6 +227,18 @@ static int mxs_gpio_to_irq(struct gpio_chip *gc, unsigned offset) return irq_find_mapping(port->domain, offset); } +static int mxs_gpio_get_direction(struct gpio_chip *gc, unsigned offset) +{ + struct bgpio_chip *bgc = to_bgpio_chip(gc); + struct mxs_gpio_port *port = + container_of(bgc, struct mxs_gpio_port, bgc); + u32 mask = 1 << offset; + u32 dir; + + dir = readl(port->base + PINCTRL_DOE(port)); + return !(dir & mask); +} + static struct platform_device_id mxs_gpio_ids[] = { { .name = "imx23-gpio", @@ -320,6 +332,7 @@ static int mxs_gpio_probe(struct platform_device *pdev) goto out_irqdesc_free; port->bgc.gc.to_irq = mxs_gpio_to_irq; + port->bgc.gc.get_direction = mxs_gpio_get_direction; port->bgc.gc.base = port->id * 32; err = gpiochip_add(&port->bgc.gc); diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index 3d6b445665ad..30646cfe0efa 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -800,7 +800,7 @@ static void omap_gpio_irq_shutdown(struct irq_data *d) unsigned offset = GPIO_INDEX(bank, gpio); spin_lock_irqsave(&bank->lock, flags); - gpio_unlock_as_irq(&bank->chip, offset); + gpiochip_unlock_as_irq(&bank->chip, offset); bank->irq_usage &= ~(BIT(offset)); omap_disable_gpio_module(bank, offset); omap_reset_gpio(bank, gpio); diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index 84b49cfb81a8..04756130437f 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -52,28 +52,34 @@ struct pl061_gpio { void __iomem *base; struct gpio_chip gc; + bool uses_pinctrl; #ifdef CONFIG_PM struct pl061_context_save_regs csave_regs; #endif }; -static int pl061_gpio_request(struct gpio_chip *chip, unsigned offset) +static int pl061_gpio_request(struct gpio_chip *gc, unsigned offset) { /* * Map back to global GPIO space and request muxing, the direction * parameter does not matter for this controller. */ - int gpio = chip->base + offset; + struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc); + int gpio = gc->base + offset; - return pinctrl_request_gpio(gpio); + if (chip->uses_pinctrl) + return pinctrl_request_gpio(gpio); + return 0; } -static void pl061_gpio_free(struct gpio_chip *chip, unsigned offset) +static void pl061_gpio_free(struct gpio_chip *gc, unsigned offset) { - int gpio = chip->base + offset; + struct pl061_gpio *chip = container_of(gc, struct pl061_gpio, gc); + int gpio = gc->base + offset; - pinctrl_free_gpio(gpio); + if (chip->uses_pinctrl) + pinctrl_free_gpio(gpio); } static int pl061_direction_input(struct gpio_chip *gc, unsigned offset) @@ -263,6 +269,8 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id) return PTR_ERR(chip->base); spin_lock_init(&chip->lock); + if (of_property_read_bool(dev->of_node, "gpio-ranges")) + chip->uses_pinctrl = true; chip->gc.request = pl061_gpio_request; chip->gc.free = pl061_gpio_free; diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c index bf6c09450fee..584484e3f1e3 100644 --- a/drivers/gpio/gpio-rcar.c +++ b/drivers/gpio/gpio-rcar.c @@ -1,6 +1,7 @@ /* * Renesas R-Car GPIO Support * + * Copyright (C) 2014 Renesas Electronics Corporation * Copyright (C) 2013 Magnus Damm * * This program is free software; you can redistribute it and/or modify @@ -291,22 +292,30 @@ struct gpio_rcar_info { bool has_both_edge_trigger; }; +static const struct gpio_rcar_info gpio_rcar_info_gen1 = { + .has_both_edge_trigger = false, +}; + +static const struct gpio_rcar_info gpio_rcar_info_gen2 = { + .has_both_edge_trigger = true, +}; + static const struct of_device_id gpio_rcar_of_table[] = { { .compatible = "renesas,gpio-r8a7790", - .data = (void *)&(const struct gpio_rcar_info) { - .has_both_edge_trigger = true, - }, + .data = &gpio_rcar_info_gen2, }, { .compatible = "renesas,gpio-r8a7791", - .data = (void *)&(const struct gpio_rcar_info) { - .has_both_edge_trigger = true, - }, + .data = &gpio_rcar_info_gen2, + }, { + .compatible = "renesas,gpio-r8a7793", + .data = &gpio_rcar_info_gen2, + }, { + .compatible = "renesas,gpio-r8a7794", + .data = &gpio_rcar_info_gen2, }, { .compatible = "renesas,gpio-rcar", - .data = (void *)&(const struct gpio_rcar_info) { - .has_both_edge_trigger = false, - }, + .data = &gpio_rcar_info_gen1, }, { /* Terminator */ }, diff --git a/drivers/gpio/gpio-stp-xway.c b/drivers/gpio/gpio-stp-xway.c index 7e359b7cce1b..7892e0fa8ba7 100644 --- a/drivers/gpio/gpio-stp-xway.c +++ b/drivers/gpio/gpio-stp-xway.c @@ -199,21 +199,17 @@ static int xway_stp_hw_init(struct xway_stp *chip) static int xway_stp_probe(struct platform_device *pdev) { - struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + struct resource *res; const __be32 *shadow, *groups, *dsl, *phy; struct xway_stp *chip; struct clk *clk; int ret = 0; - if (!res) { - dev_err(&pdev->dev, "failed to request STP resource\n"); - return -ENOENT; - } - chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL); if (!chip) return -ENOMEM; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); chip->virt = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(chip->virt)) return PTR_ERR(chip->virt); diff --git a/drivers/gpio/gpio-tb10x.c b/drivers/gpio/gpio-tb10x.c index 9e615be8032c..8b1e8c0dd2fb 100644 --- a/drivers/gpio/gpio-tb10x.c +++ b/ |