Merge branch 'next/dt' into next/multiplatform

* next/dt: (182 commits)
  ARM: tegra: Add Avionic Design Tamonten Evaluation Carrier support
  ARM: tegra: Add Avionic Design Medcom-Wide support
  ARM: tegra: Add Avionic Design Plutux support
  ARM: tegra: Add Avionic Design Tamonten support
  ARM: tegra: dts: Add pwm label
  ARM: dt: tegra: whistler: configure power off
  ARM: mxs: m28evk: Disable OCOTP OUI loading
  ARM: imx6q: use pll2_pfd2_396m as the enfc_sel's parent
  ARM: dts: imx6q-sabrelite: add usbotg pinctrl support
  ARM: dts: imx23-olinuxino: Add USB host support
  ARM: dts: imx6q-sabrelite: add usbmisc device
  ARM: dts: mx23: Add USB resources
  ARM: dts: mxs: Add ethernetX to macX aliases
  ARM: msm: Remove non-DT targets from 8960
  ARM: msm: Add DT support for 8960
  ARM: msm: Move io mapping prototypes to common.h
  ARM: msm: Rename board-msm8x60 to signify its DT only status
  ARM: msm: Make 8660 a DT only target
  ARM: msm: Move 8660 to DT timer
  ARM: msm: Add DT support to msm_timer
  ...

3 files changed, 138 insertions, 79 deletions

diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 9cac88a65f78..9528779ca463 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -26,6 +26,8 @@
 #include <linux/syscore_ops.h>
 #include <linux/slab.h>
 
+#include <asm/mach/irq.h>
+
 #include <mach/irqs.h>
 
 /*
@@ -59,6 +61,7 @@
 #define BANK_OFF(n)     (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
 
 int pxa_last_gpio;
+static int irq_base;
 
 #ifdef CONFIG_OF
 static struct irq_domain *domain;
@@ -167,63 +170,14 @@ static inline int __gpio_is_occupied(unsigned gpio)
         return ret;
 }
 
-#ifdef CONFIG_ARCH_PXA
-static inline int __pxa_gpio_to_irq(int gpio)
-{
-        if (gpio_is_pxa_type(gpio_type))
-                return PXA_GPIO_TO_IRQ(gpio);
-        return -1;
-}
-
-static inline int __pxa_irq_to_gpio(int irq)
-{
-        if (gpio_is_pxa_type(gpio_type))
-                return irq - PXA_GPIO_TO_IRQ(0);
-        return -1;
-}
-#else
-static inline int __pxa_gpio_to_irq(int gpio) { return -1; }
-static inline int __pxa_irq_to_gpio(int irq) { return -1; }
-#endif
-
-#ifdef CONFIG_ARCH_MMP
-static inline int __mmp_gpio_to_irq(int gpio)
-{
-        if (gpio_is_mmp_type(gpio_type))
-                return MMP_GPIO_TO_IRQ(gpio);
-        return -1;
-}
-
-static inline int __mmp_irq_to_gpio(int irq)
-{
-        if (gpio_is_mmp_type(gpio_type))
-                return irq - MMP_GPIO_TO_IRQ(0);
-        return -1;
-}
-#else
-static inline int __mmp_gpio_to_irq(int gpio) { return -1; }
-static inline int __mmp_irq_to_gpio(int irq) { return -1; }
-#endif
-
 static int pxa_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
 {
-        int gpio, ret;
-
-        gpio = chip->base + offset;
-        ret = __pxa_gpio_to_irq(gpio);
-        if (ret >= 0)
-                return ret;
-        return __mmp_gpio_to_irq(gpio);
+        return chip->base + offset + irq_base;
 }
 
 int pxa_irq_to_gpio(int irq)
 {
-        int ret;
-
-        ret = __pxa_irq_to_gpio(irq);
-        if (ret >= 0)
-                return ret;
-        return __mmp_irq_to_gpio(irq);
+        return irq - irq_base;
 }
 
 static int pxa_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
@@ -403,6 +357,9 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc)
         struct pxa_gpio_chip *c;
         int loop, gpio, gpio_base, n;
         unsigned long gedr;
+        struct irq_chip *chip = irq_desc_get_chip(desc);
+
+        chained_irq_enter(chip, desc);
 
         do {
                 loop = 0;
@@ -422,6 +379,8 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc)
                         }
                 }
         } while (loop);
+
+        chained_irq_exit(chip, desc);
 }
 
 static void pxa_ack_muxed_gpio(struct irq_data *d)
@@ -535,7 +494,7 @@ const struct irq_domain_ops pxa_irq_domain_ops = {
 
 static int __devinit pxa_gpio_probe_dt(struct platform_device *pdev)
 {
-        int ret, nr_banks, nr_gpios, irq_base;
+        int ret, nr_banks, nr_gpios;
         struct device_node *prev, *next, *np = pdev->dev.of_node;
         const struct of_device_id *of_id =
                                 of_match_device(pxa_gpio_dt_ids, &pdev->dev);
@@ -590,10 +549,20 @@ static int __devinit pxa_gpio_probe(struct platform_device *pdev)
         int irq0 = 0, irq1 = 0, irq_mux, gpio_offset = 0;
 
         ret = pxa_gpio_probe_dt(pdev);
-        if (ret < 0)
+        if (ret < 0) {
                 pxa_last_gpio = pxa_gpio_nums();
-        else
+#ifdef CONFIG_ARCH_PXA
+                if (gpio_is_pxa_type(gpio_type))
+                        irq_base = PXA_GPIO_TO_IRQ(0);
+#endif
+#ifdef CONFIG_ARCH_MMP
+                if (gpio_is_mmp_type(gpio_type))
+                        irq_base = MMP_GPIO_TO_IRQ(0);
+#endif
+        } else {
                 use_of = 1;
+        }
+
         if (!pxa_last_gpio)
                 return -EINVAL;
 
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index 1c169324e357..8af4b06e80f7 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -938,6 +938,67 @@ static void __init samsung_gpiolib_add(struct samsung_gpio_chip *chip)
                 s3c_gpiolib_track(chip);
 }
 
+#if defined(CONFIG_PLAT_S3C24XX) && defined(CONFIG_OF)
+static int s3c24xx_gpio_xlate(struct gpio_chip *gc,
+                        const struct of_phandle_args *gpiospec, u32 *flags)
+{
+        unsigned int pin;
+
+        if (WARN_ON(gc->of_gpio_n_cells < 3))
+                return -EINVAL;
+
+        if (WARN_ON(gpiospec->args_count < gc->of_gpio_n_cells))
+                return -EINVAL;
+
+        if (gpiospec->args[0] > gc->ngpio)
+                return -EINVAL;
+
+        pin = gc->base + gpiospec->args[0];
+
+        if (s3c_gpio_cfgpin(pin, S3C_GPIO_SFN(gpiospec->args[1])))
+                pr_warn("gpio_xlate: failed to set pin function\n");
+        if (s3c_gpio_setpull(pin, gpiospec->args[2] & 0xffff))
+                pr_warn("gpio_xlate: failed to set pin pull up/down\n");
+
+        if (flags)
+                *flags = gpiospec->args[2] >> 16;
+
+        return gpiospec->args[0];
+}
+
+static const struct of_device_id s3c24xx_gpio_dt_match[] __initdata = {
+        { .compatible = "samsung,s3c24xx-gpio", },
+        {}
+};
+
+static __init void s3c24xx_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
+                                                 u64 base, u64 offset)
+{
+        struct gpio_chip *gc =  &chip->chip;
+        u64 address;
+
+        if (!of_have_populated_dt())
+                return;
+
+        address = chip->base ? base + ((u32)chip->base & 0xfff) : base + offset;
+        gc->of_node = of_find_matching_node_by_address(NULL,
+                        s3c24xx_gpio_dt_match, address);
+        if (!gc->of_node) {
+                pr_info("gpio: device tree node not found for gpio controller"
+                        " with base address %08llx\n", address);
+                return;
+        }
+        gc->of_gpio_n_cells = 3;
+        gc->of_xlate = s3c24xx_gpio_xlate;
+}
+#else
+static __init void s3c24xx_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
+                                                 u64 base, u64 offset)
+{
+        return;
+}
+#endif /* defined(CONFIG_PLAT_S3C24XX) && defined(CONFIG_OF) */
+
 static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip,
                                              int nr_chips, void __iomem *base)
 {
@@ -962,6 +1023,8 @@ static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip,
                         gc->direction_output = samsung_gpiolib_2bit_output;
 
                 samsung_gpiolib_add(chip);
+
+                s3c24xx_gpiolib_attach_ofnode(chip, S3C24XX_PA_GPIO, i * 0x10);
         }
 }
 
diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index f030880bc9bb..c5f8ca233e1f 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -396,6 +396,29 @@ static int __devinit gpio_twl4030_debounce(u32 debounce, u8 mmc_cd)
 
 static int gpio_twl4030_remove(struct platform_device *pdev);
 
+static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev)
+{
+        struct twl4030_gpio_platform_data *omap_twl_info;
+
+        omap_twl_info = devm_kzalloc(dev, sizeof(*omap_twl_info), GFP_KERNEL);
+        if (!omap_twl_info)
+                return NULL;
+
+        omap_twl_info->use_leds = of_property_read_bool(dev->of_node,
+                        "ti,use-leds");
+
+        of_property_read_u32(dev->of_node, "ti,debounce",
+                             &omap_twl_info->debounce);
+        of_property_read_u32(dev->of_node, "ti,mmc-cd",
+                             (u32 *)&omap_twl_info->mmc_cd);
+        of_property_read_u32(dev->of_node, "ti,pullups",
+                             &omap_twl_info->pullups);
+        of_property_read_u32(dev->of_node, "ti,pulldowns",
+                             &omap_twl_info->pulldowns);
+
+        return omap_twl_info;
+}
+
 static int __devinit gpio_twl4030_probe(struct platform_device *pdev)
 {
         struct twl4030_gpio_platform_data *pdata = pdev->dev.platform_data;
@@ -428,33 +451,37 @@ no_irqs:
         twl_gpiochip.ngpio = TWL4030_GPIO_MAX;
         twl_gpiochip.dev = &pdev->dev;
 
-        if (pdata) {
-                /*
-                 * NOTE:  boards may waste power if they don't set pullups
-                 * and pulldowns correctly ... default for non-ULPI pins is
-                 * pulldown, and some other pins may have external pullups
-                 * or pulldowns.  Careful!
-                 */
-                ret = gpio_twl4030_pulls(pdata->pullups, pdata->pulldowns);
-                if (ret)
-                        dev_dbg(&pdev->dev, "pullups %.05x %.05x --> %d\n",
-                                        pdata->pullups, pdata->pulldowns,
-                                        ret);
-
-                ret = gpio_twl4030_debounce(pdata->debounce, pdata->mmc_cd);
-                if (ret)
-                        dev_dbg(&pdev->dev, "debounce %.03x %.01x --> %d\n",
-                                        pdata->debounce, pdata->mmc_cd,
-                                        ret);
-
-                /*
-                 * NOTE: we assume VIBRA_CTL.VIBRA_EN, in MODULE_AUDIO_VOICE,
-                 * is (still) clear if use_leds is set.
-                 */
-                if (pdata->use_leds)
-                        twl_gpiochip.ngpio += 2;
+        if (node)
+                pdata = of_gpio_twl4030(&pdev->dev);
+
+        if (pdata == NULL) {
+                dev_err(&pdev->dev, "Platform data is missing\n");
+                return -ENXIO;
         }
 
+        /*
+         * NOTE:  boards may waste power if they don't set pullups
+         * and pulldowns correctly ... default for non-ULPI pins is
+         * pulldown, and some other pins may have external pullups
+         * or pulldowns.  Careful!
+         */
+        ret = gpio_twl4030_pulls(pdata->pullups, pdata->pulldowns);
+        if (ret)
+                dev_dbg(&pdev->dev, "pullups %.05x %.05x --> %d\n",
+                        pdata->pullups, pdata->pulldowns, ret);
+
+        ret = gpio_twl4030_debounce(pdata->debounce, pdata->mmc_cd);
+        if (ret)
+                dev_dbg(&pdev->dev, "debounce %.03x %.01x --> %d\n",
+                        pdata->debounce, pdata->mmc_cd, ret);
+
+        /*
+         * NOTE: we assume VIBRA_CTL.VIBRA_EN, in MODULE_AUDIO_VOICE,
+         * is (still) clear if use_leds is set.
+         */
+        if (pdata->use_leds)
+                twl_gpiochip.ngpio += 2;
+
         ret = gpiochip_add(&twl_gpiochip);
         if (ret < 0) {
                 dev_err(&pdev->dev, "could not register gpiochip, %d\n", ret);