diff options
| -rw-r--r-- | drivers/gpio/gpio-ep93xx.c | 2 | ||||
| -rw-r--r-- | drivers/gpio/gpio-generic.c | 16 | ||||
| -rw-r--r-- | drivers/gpio/gpio-mxc.c | 2 | ||||
| -rw-r--r-- | drivers/gpio/gpio-mxs.c | 2 | ||||
| -rw-r--r-- | drivers/gpio/gpio-sodaville.c | 2 | ||||
| -rw-r--r-- | include/linux/basic_mmio_gpio.h | 6 |
6 files changed, 20 insertions, 10 deletions
diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c index 776b772523e5..9fe5b8fe9be8 100644 --- a/drivers/gpio/gpio-ep93xx.c +++ b/drivers/gpio/gpio-ep93xx.c @@ -325,7 +325,7 @@ static int ep93xx_gpio_add_bank(struct bgpio_chip *bgc, struct device *dev, void __iomem *dir = mmio_base + bank->dir; int err; - err = bgpio_init(bgc, dev, 1, data, NULL, NULL, dir, NULL, false); + err = bgpio_init(bgc, dev, 1, data, NULL, NULL, dir, NULL, 0); if (err) return err; diff --git a/drivers/gpio/gpio-generic.c b/drivers/gpio/gpio-generic.c index e38dd0c31973..82e2e4fe599e 100644 --- a/drivers/gpio/gpio-generic.c +++ b/drivers/gpio/gpio-generic.c @@ -364,7 +364,7 @@ EXPORT_SYMBOL_GPL(bgpio_remove); int bgpio_init(struct bgpio_chip *bgc, struct device *dev, unsigned long sz, void __iomem *dat, void __iomem *set, void __iomem *clr, void __iomem *dirout, void __iomem *dirin, - bool big_endian) + unsigned long flags) { int ret; @@ -385,7 +385,7 @@ int bgpio_init(struct bgpio_chip *bgc, struct device *dev, if (ret) return ret; - ret = bgpio_setup_accessors(dev, bgc, big_endian); + ret = bgpio_setup_accessors(dev, bgc, flags & BGPIOF_BIG_ENDIAN); if (ret) return ret; @@ -394,6 +394,11 @@ int bgpio_init(struct bgpio_chip *bgc, struct device *dev, return ret; bgc->data = bgc->read_reg(bgc->reg_dat); + if (bgc->gc.set == bgpio_set_set && + !(flags & BGPIOF_UNREADABLE_REG_SET)) + bgc->data = bgc->read_reg(bgc->reg_set); + if (bgc->reg_dir && !(flags & BGPIOF_UNREADABLE_REG_DIR)) + bgc->dir = bgc->read_reg(bgc->reg_dir); return ret; } @@ -449,7 +454,7 @@ static int __devinit bgpio_pdev_probe(struct platform_device *pdev) void __iomem *dirout; void __iomem *dirin; unsigned long sz; - bool be; + unsigned long flags = 0; int err; struct bgpio_chip *bgc; struct bgpio_pdata *pdata = dev_get_platdata(dev); @@ -480,13 +485,14 @@ static int __devinit bgpio_pdev_probe(struct platform_device *pdev) if (err) return err; - be = !strcmp(platform_get_device_id(pdev)->name, "basic-mmio-gpio-be"); + if (!strcmp(platform_get_device_id(pdev)->name, "basic-mmio-gpio-be")) + flags |= BGPIOF_BIG_ENDIAN; bgc = devm_kzalloc(&pdev->dev, sizeof(*bgc), GFP_KERNEL); if (!bgc) return -ENOMEM; - err = bgpio_init(bgc, dev, sz, dat, set, clr, dirout, dirin, be); + err = bgpio_init(bgc, dev, sz, dat, set, clr, dirout, dirin, flags); if (err) return err; diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c index e79147634573..c337143b18f8 100644 --- a/drivers/gpio/gpio-mxc.c +++ b/drivers/gpio/gpio-mxc.c @@ -417,7 +417,7 @@ static int __devinit mxc_gpio_probe(struct platform_device *pdev) err = bgpio_init(&port->bgc, &pdev->dev, 4, port->base + GPIO_PSR, port->base + GPIO_DR, NULL, - port->base + GPIO_GDIR, NULL, false); + port->base + GPIO_GDIR, NULL, 0); if (err) goto out_iounmap; diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c index 385c58e8405b..b4136501abd8 100644 --- a/drivers/gpio/gpio-mxs.c +++ b/drivers/gpio/gpio-mxs.c @@ -244,7 +244,7 @@ static int __devinit mxs_gpio_probe(struct platform_device *pdev) err = bgpio_init(&port->bgc, &pdev->dev, 4, port->base + PINCTRL_DIN(port->id), port->base + PINCTRL_DOUT(port->id), NULL, - port->base + PINCTRL_DOE(port->id), NULL, false); + port->base + PINCTRL_DOE(port->id), NULL, 0); if (err) goto out_iounmap; diff --git a/drivers/gpio/gpio-sodaville.c b/drivers/gpio/gpio-sodaville.c index 820209c420e3..9d9891f7a607 100644 --- a/drivers/gpio/gpio-sodaville.c +++ b/drivers/gpio/gpio-sodaville.c @@ -224,7 +224,7 @@ static int __devinit sdv_gpio_probe(struct pci_dev *pdev, ret = bgpio_init(&sd->bgpio, &pdev->dev, 4, sd->gpio_pub_base + GPINR, sd->gpio_pub_base + GPOUTR, - NULL, sd->gpio_pub_base + GPOER, NULL, false); + NULL, sd->gpio_pub_base + GPOER, NULL, 0); if (ret) goto unmap; sd->bgpio.gc.ngpio = SDV_NUM_PUB_GPIOS; diff --git a/include/linux/basic_mmio_gpio.h b/include/linux/basic_mmio_gpio.h index feb912196745..1c504ca5bdb3 100644 --- a/include/linux/basic_mmio_gpio.h +++ b/include/linux/basic_mmio_gpio.h @@ -67,6 +67,10 @@ int bgpio_remove(struct bgpio_chip *bgc); int bgpio_init(struct bgpio_chip *bgc, struct device *dev, unsigned long sz, void __iomem *dat, void __iomem *set, void __iomem *clr, void __iomem *dirout, void __iomem *dirin, - bool big_endian); + unsigned long flags); + +#define BGPIOF_BIG_ENDIAN BIT(0) +#define BGPIOF_UNREADABLE_REG_SET BIT(1) /* reg_set is unreadable */ +#define BGPIOF_UNREADABLE_REG_DIR BIT(2) /* reg_dir is unreadable */ #endif /* __BASIC_MMIO_GPIO_H */ |