13 files changed, 232 insertions, 56 deletions

diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 59401e1cc530..a9d52167e16e 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -414,6 +414,11 @@ config S5P_SETUP_MIPIPHY
         help
           Compile in common setup code for MIPI-CSIS and MIPI-DSIM devices
 
+config S3C_SETUP_CAMIF
+        bool
+        help
+          Compile in common setup code for S3C CAMIF devices
+
 # DMA
 
 config S3C_DMA
@@ -502,5 +507,6 @@ config DEBUG_S3C_UART
         default "0" if DEBUG_S3C_UART0
         default "1" if DEBUG_S3C_UART1
         default "2" if DEBUG_S3C_UART2
+        default "3" if DEBUG_S3C_UART3
 
 endif
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index 9e40e8d00740..3a7c64d1814a 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -41,6 +41,7 @@ obj-$(CONFIG_S5P_DEV_UART)	+= s5p-dev-uart.o
 
 obj-$(CONFIG_SAMSUNG_DEV_BACKLIGHT)     += dev-backlight.o
 
+obj-$(CONFIG_S3C_SETUP_CAMIF)   += setup-camif.o
 obj-$(CONFIG_S5P_SETUP_MIPIPHY) += setup-mipiphy.o
 
 # DMA support
diff --git a/arch/arm/plat-samsung/adc.c b/arch/arm/plat-samsung/adc.c
index b1e05ccff3ac..37542c2689a2 100644
--- a/arch/arm/plat-samsung/adc.c
+++ b/arch/arm/plat-samsung/adc.c
@@ -344,7 +344,7 @@ static int s3c_adc_probe(struct platform_device *pdev)
         int ret;
         unsigned tmp;
 
-        adc = kzalloc(sizeof(struct adc_device), GFP_KERNEL);
+        adc = devm_kzalloc(dev, sizeof(struct adc_device), GFP_KERNEL);
         if (adc == NULL) {
                 dev_err(dev, "failed to allocate adc_device\n");
                 return -ENOMEM;
@@ -355,50 +355,46 @@ static int s3c_adc_probe(struct platform_device *pdev)
         adc->pdev = pdev;
         adc->prescale = S3C2410_ADCCON_PRSCVL(49);
 
-        adc->vdd = regulator_get(dev, "vdd");
+        adc->vdd = devm_regulator_get(dev, "vdd");
         if (IS_ERR(adc->vdd)) {
                 dev_err(dev, "operating without regulator \"vdd\" .\n");
-                ret = PTR_ERR(adc->vdd);
-                goto err_alloc;
+                return PTR_ERR(adc->vdd);
         }
 
         adc->irq = platform_get_irq(pdev, 1);
         if (adc->irq <= 0) {
                 dev_err(dev, "failed to get adc irq\n");
-                ret = -ENOENT;
-                goto err_reg;
+                return -ENOENT;
         }
 
-        ret = request_irq(adc->irq, s3c_adc_irq, 0, dev_name(dev), adc);
+        ret = devm_request_irq(dev, adc->irq, s3c_adc_irq, 0, dev_name(dev),
+                                adc);
         if (ret < 0) {
                 dev_err(dev, "failed to attach adc irq\n");
-                goto err_reg;
+                return ret;
         }
 
-        adc->clk = clk_get(dev, "adc");
+        adc->clk = devm_clk_get(dev, "adc");
         if (IS_ERR(adc->clk)) {
                 dev_err(dev, "failed to get adc clock\n");
-                ret = PTR_ERR(adc->clk);
-                goto err_irq;
+                return PTR_ERR(adc->clk);
         }
 
         regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!regs) {
                 dev_err(dev, "failed to find registers\n");
-                ret = -ENXIO;
-                goto err_clk;
+                return -ENXIO;
         }
 
-        adc->regs = ioremap(regs->start, resource_size(regs));
+        adc->regs = devm_request_and_ioremap(dev, regs);
         if (!adc->regs) {
                 dev_err(dev, "failed to map registers\n");
-                ret = -ENXIO;
-                goto err_clk;
+                return -ENXIO;
         }
 
         ret = regulator_enable(adc->vdd);
         if (ret)
-                goto err_ioremap;
+                return ret;
 
         clk_enable(adc->clk);
 
@@ -418,32 +414,14 @@ static int s3c_adc_probe(struct platform_device *pdev)
         adc_dev = adc;
 
         return 0;
-
- err_ioremap:
-        iounmap(adc->regs);
- err_clk:
-        clk_put(adc->clk);
-
- err_irq:
-        free_irq(adc->irq, adc);
- err_reg:
-        regulator_put(adc->vdd);
- err_alloc:
-        kfree(adc);
-        return ret;
 }
 
 static int __devexit s3c_adc_remove(struct platform_device *pdev)
 {
         struct adc_device *adc = platform_get_drvdata(pdev);
 
-        iounmap(adc->regs);
-        free_irq(adc->irq, adc);
         clk_disable(adc->clk);
         regulator_disable(adc->vdd);
-        regulator_put(adc->vdd);
-        clk_put(adc->clk);
-        kfree(adc);
 
         return 0;
 }
diff --git a/arch/arm/plat-samsung/clock.c b/arch/arm/plat-samsung/clock.c
index 012bbd0b8d81..47c9fad43f00 100644
--- a/arch/arm/plat-samsung/clock.c
+++ b/arch/arm/plat-samsung/clock.c
@@ -389,6 +389,72 @@ int __init s3c24xx_register_baseclocks(unsigned long xtal)
 
 static struct dentry *clk_debugfs_root;
 
+static void clock_tree_show_one(struct seq_file *s, struct clk *c, int level)
+{
+        struct clk *child;
+        const char *state;
+        char buf[255] = { 0 };
+        int n = 0;
+
+        if (c->name)
+                n = snprintf(buf, sizeof(buf) - 1, "%s", c->name);
+
+        if (c->devname)
+                n += snprintf(buf + n, sizeof(buf) - 1 - n, ":%s", c->devname);
+
+        state = (c->usage > 0) ? "on" : "off";
+
+        seq_printf(s, "%*s%-*s %-6s %-3d %-10lu\n",
+                   level * 3 + 1, "",
+                   50 - level * 3, buf,
+                   state, c->usage, clk_get_rate(c));
+
+        list_for_each_entry(child, &clocks, list) {
+                if (child->parent != c)
+                        continue;
+
+                clock_tree_show_one(s, child, level + 1);
+        }
+}
+
+static int clock_tree_show(struct seq_file *s, void *data)
+{
+        struct clk *c;
+        unsigned long flags;
+
+        seq_printf(s, " clock state ref rate\n");
+        seq_printf(s, "----------------------------------------------------\n");
+
+        spin_lock_irqsave(&clocks_lock, flags);
+
+        list_for_each_entry(c, &clocks, list)
+                if (c->parent == NULL)
+                        clock_tree_show_one(s, c, 0);
+
+        spin_unlock_irqrestore(&clocks_lock, flags);
+        return 0;
+}
+
+static int clock_tree_open(struct inode *inode, struct file *file)
+{
+        return single_open(file, clock_tree_show, inode->i_private);
+}
+
+static const struct file_operations clock_tree_fops = {
+        .open           = clock_tree_open,
+        .read           = seq_read,
+        .llseek         = seq_lseek,
+        .release        = single_release,
+};
+
+static int clock_rate_show(void *data, u64 *val)
+{
+        struct clk *c = data;
+        *val = clk_get_rate(c);
+        return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(clock_rate_fops, clock_rate_show, NULL, "%llu\n");
+
 static int clk_debugfs_register_one(struct clk *c)
 {
         int err;
@@ -411,7 +477,7 @@ static int clk_debugfs_register_one(struct clk *c)
                 goto err_out;
         }
 
-        d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate);
+        d = debugfs_create_file("rate", S_IRUGO, c->dent, c, &clock_rate_fops);
         if (!d) {
                 err = -ENOMEM;
                 goto err_out;
@@ -446,13 +512,18 @@ static int __init clk_debugfs_init(void)
 {
         struct clk *c;
         struct dentry *d;
-        int err;
+        int err = -ENOMEM;
 
         d = debugfs_create_dir("clock", NULL);
         if (!d)
                 return -ENOMEM;
         clk_debugfs_root = d;
 
+        d = debugfs_create_file("clock_tree", S_IRUGO, clk_debugfs_root, NULL,
+                                 &clock_tree_fops);
+        if (!d)
+                goto err_out;
+
         list_for_each_entry(c, &clocks, list) {
                 err = clk_debugfs_register(c);
                 if (err)
diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
index 03f654d55eff..51afedda9ab6 100644
--- a/arch/arm/plat-samsung/devs.c
+++ b/arch/arm/plat-samsung/devs.c
@@ -146,15 +146,6 @@ struct platform_device s3c_device_camif = {
 
 /* ASOC DMA */
 
-struct platform_device samsung_asoc_dma = {
-        .name           = "samsung-audio",
-        .id             = -1,
-        .dev            = {
-                .dma_mask               = &samsung_device_dma_mask,
-                .coherent_dma_mask      = DMA_BIT_MASK(32),
-        }
-};
-
 struct platform_device samsung_asoc_idma = {
         .name           = "samsung-idma",
         .id             = -1,
@@ -486,11 +477,7 @@ static struct resource s3c_i2c0_resource[] = {
 
 struct platform_device s3c_device_i2c0 = {
         .name           = "s3c2410-i2c",
-#ifdef CONFIG_S3C_DEV_I2C1
         .id             = 0,
-#else
-        .id             = -1,
-#endif
         .num_resources  = ARRAY_SIZE(s3c_i2c0_resource),
         .resource       = s3c_i2c0_resource,
 };
@@ -933,6 +920,7 @@ struct platform_device s5p_device_mfc_r = {
                 .coherent_dma_mask      = DMA_BIT_MASK(32),
         },
 };
+
 #endif /* CONFIG_S5P_DEV_MFC */
 
 /* MIPI CSIS */
diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h
index ace4451b7651..e0072ce8d6e9 100644
--- a/arch/arm/plat-samsung/include/plat/cpu.h
+++ b/arch/arm/plat-samsung/include/plat/cpu.h
@@ -43,6 +43,7 @@ extern unsigned long samsung_cpu_id;
 #define EXYNOS4_CPU_MASK        0xFFFE0000
 
 #define EXYNOS5250_SOC_ID       0x43520000
+#define EXYNOS5440_SOC_ID       0x54400000
 #define EXYNOS5_SOC_MASK        0xFFFFF000
 
 #define IS_SAMSUNG_CPU(name, id, mask)          \
@@ -62,6 +63,7 @@ IS_SAMSUNG_CPU(exynos4210, EXYNOS4210_CPU_ID, EXYNOS4_CPU_MASK)
 IS_SAMSUNG_CPU(exynos4212, EXYNOS4212_CPU_ID, EXYNOS4_CPU_MASK)
 IS_SAMSUNG_CPU(exynos4412, EXYNOS4412_CPU_ID, EXYNOS4_CPU_MASK)
 IS_SAMSUNG_CPU(exynos5250, EXYNOS5250_SOC_ID, EXYNOS5_SOC_MASK)
+IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID, EXYNOS5_SOC_MASK)
 
 #if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2412) || \
     defined(CONFIG_CPU_S3C2416) || defined(CONFIG_CPU_S3C2440) || \
@@ -130,6 +132,12 @@ IS_SAMSUNG_CPU(exynos5250, EXYNOS5250_SOC_ID, EXYNOS5_SOC_MASK)
 # define soc_is_exynos5250()    0
 #endif
 
+#if defined(CONFIG_SOC_EXYNOS5440)
+# define soc_is_exynos5440()    is_samsung_exynos5440()
+#else
+# define soc_is_exynos5440()    0
+#endif
+
 #define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE }
 
 #ifndef KHZ
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index 5da4b4f38f40..87d501ff3328 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -123,7 +123,6 @@ extern struct platform_device s5pv210_device_spdif;
 
 extern struct platform_device exynos4_device_ac97;
 extern struct platform_device exynos4_device_ahci;
-extern struct platform_device exynos4_device_dwmci;
 extern struct platform_device exynos4_device_i2s0;
 extern struct platform_device exynos4_device_i2s1;
 extern struct platform_device exynos4_device_i2s2;
@@ -133,9 +132,6 @@ extern struct platform_device exynos4_device_pcm1;
 extern struct platform_device exynos4_device_pcm2;
 extern struct platform_device exynos4_device_spdif;
 
-extern struct platform_device exynos_device_drm;
-
-extern struct platform_device samsung_asoc_dma;
 extern struct platform_device samsung_asoc_idma;
 extern struct platform_device samsung_device_keypad;
 
diff --git a/arch/arm/plat-samsung/include/plat/gpio-core.h b/arch/arm/plat-samsung/include/plat/gpio-core.h
index 1fe6917f6a2a..f7a3ea2c498a 100644
--- a/arch/arm/plat-samsung/include/plat/gpio-core.h
+++ b/arch/arm/plat-samsung/include/plat/gpio-core.h
@@ -11,6 +11,9 @@
  * published by the Free Software Foundation.
 */
 
+#ifndef __PLAT_SAMSUNG_GPIO_CORE_H
+#define __PLAT_SAMSUNG_GPIO_CORE_H
+
 #define GPIOCON_OFF     (0x00)
 #define GPIODAT_OFF     (0x04)
 
@@ -48,6 +51,7 @@ struct samsung_gpio_cfg;
  * @config: special function and pull-resistor control information.
  * @lock: Lock for exclusive access to this gpio bank.
  * @pm_save: Save information for suspend/resume support.
+ * @bitmap_gpio_int: Bitmap for representing GPIO interrupt or not.
  *
  * This wrapper provides the necessary information for the Samsung
  * specific gpios being registered with gpiolib.
@@ -71,6 +75,7 @@ struct samsung_gpio_chip {
 #ifdef CONFIG_PM
         u32                     pm_save[4];
 #endif
+        u32                     bitmap_gpio_int;
 };
 
 static inline struct samsung_gpio_chip *to_samsung_gpio(struct gpio_chip *gpc)
@@ -122,3 +127,5 @@ extern struct samsung_gpio_pm samsung_gpio_pm_4bit;
 /* locking wrappers to deal with multiple access to the same gpio bank */
 #define samsung_gpio_lock(_oc, _fl) spin_lock_irqsave(&(_oc)->lock, _fl)
 #define samsung_gpio_unlock(_oc, _fl) spin_unlock_irqrestore(&(_oc)->lock, _fl)
+
+#endif /* __PLAT_SAMSUNG_GPIO_CORE_H */
diff --git a/arch/arm/plat-samsung/include/plat/mfc.h b/arch/arm/plat-samsung/include/plat/mfc.h
index ac13227272f0..e6d7c42d68b6 100644
--- a/arch/arm/plat-samsung/include/plat/mfc.h
+++ b/arch/arm/plat-samsung/include/plat/mfc.h
@@ -10,6 +10,14 @@
 #ifndef __PLAT_SAMSUNG_MFC_H
 #define __PLAT_SAMSUNG_MFC_H __FILE__
 
+struct s5p_mfc_dt_meminfo {
+        unsigned long   loff;
+        unsigned long   lsize;
+        unsigned long   roff;
+        unsigned long   rsize;
+        char            *compatible;
+};
+
 /**
  * s5p_mfc_reserve_mem - function to early reserve memory for MFC driver
  * @rbase:      base address for MFC 'right' memory interface
@@ -24,4 +32,7 @@
 void __init s5p_mfc_reserve_mem(phys_addr_t rbase, unsigned int rsize,
                                 phys_addr_t lbase, unsigned int lsize);
 
+int __init s5p_fdt_find_mfc_mem(unsigned long node, const char *uname,
+                                int depth, void *data);
+
 #endif /* __PLAT_SAMSUNG_MFC_H */
diff --git a/arch/arm/plat-samsung/include/plat/pm.h b/arch/arm/plat-samsung/include/plat/pm.h
index 61fc53740fbd..887a0c954379 100644
--- a/arch/arm/plat-samsung/include/plat/pm.h
+++ b/arch/arm/plat-samsung/include/plat/pm.h
@@ -107,10 +107,12 @@ extern void s3c_pm_do_restore(struct sleep_save *ptr, int count);
 extern void s3c_pm_do_restore_core(struct sleep_save *ptr, int count);
 
 #ifdef CONFIG_PM
+extern int s3c_irq_wake(struct irq_data *data, unsigned int state);
 extern int s3c_irqext_wake(struct irq_data *data, unsigned int state);
 extern int s3c24xx_irq_suspend(void);
 extern void s3c24xx_irq_resume(void);
 #else
+#define s3c_irq_wake NULL
 #define s3c_irqext_wake NULL
 #define s3c24xx_irq_suspend NULL
 #define s3c24xx_irq_resume  NULL
diff --git a/arch/arm/plat-samsung/s5p-dev-mfc.c b/arch/arm/plat-samsung/s5p-dev-mfc.c
index ad6089465e2a..5ec104b5408b 100644
--- a/arch/arm/plat-samsung/s5p-dev-mfc.c
+++ b/arch/arm/plat-samsung/s5p-dev-mfc.c
@@ -14,6 +14,8 @@
 #include <linux/dma-mapping.h>
 #include <linux/memblock.h>
 #include <linux/ioport.h>
+#include <linux/of_fdt.h>
+#include <linux/of.h>
 
 #include <mach/map.h>
 #include <plat/devs.h>
@@ -69,3 +71,35 @@ static int __init s5p_mfc_memory_init(void)
         return 0;
 }
 device_initcall(s5p_mfc_memory_init);
+
+#ifdef CONFIG_OF
+int __init s5p_fdt_find_mfc_mem(unsigned long node, const char *uname,
+                                int depth, void *data)
+{
+        __be32 *prop;
+        unsigned long len;
+        struct s5p_mfc_dt_meminfo *mfc_mem = data;
+
+        if (!data)
+                return 0;
+
+        if (!of_flat_dt_is_compatible(node, mfc_mem->compatible))
+                return 0;
+
+        prop = of_get_flat_dt_prop(node, "samsung,mfc-l", &len);
+        if (!prop || (len != 2 * sizeof(unsigned long)))
+                return 0;
+
+        mfc_mem->loff = be32_to_cpu(prop[0]);
+        mfc_mem->lsize = be32_to_cpu(prop[1]);
+
+        prop = of_get_flat_dt_prop(node, "samsung,mfc-r", &len);
+        if (!prop || (len != 2 * sizeof(unsigned long)))
+                return 0;
+
+        mfc_mem->roff = be32_to_cpu(prop[0]);
+        mfc_mem->rsize = be32_to_cpu(prop[1]);
+
+        return 1;
+}
+#endif
diff --git a/arch/arm/plat-samsung/s5p-irq-gpioint.c b/arch/arm/plat-samsung/s5p-irq-gpioint.c
index 23557d30e44c..bae56131a50a 100644
--- a/arch/arm/plat-samsung/s5p-irq-gpioint.c
+++ b/arch/arm/plat-samsung/s5p-irq-gpioint.c
@@ -185,7 +185,7 @@ int __init s5p_register_gpio_interrupt(int pin)
 
         /* check if the group has been already registered */
         if (my_chip->irq_base)
-                return my_chip->irq_base + offset;
+                goto success;
 
         /* register gpio group */
         ret = s5p_gpioint_add(my_chip);
@@ -193,9 +193,13 @@ int __init s5p_register_gpio_interrupt(int pin)
                 my_chip->chip.to_irq = samsung_gpiolib_to_irq;
                 printk(KERN_INFO "Registered interrupt support for gpio group %d.\n",
                        group);
-                return my_chip->irq_base + offset;
+                goto success;
         }
         return ret;
+success:
+        my_chip->bitmap_gpio_int |= BIT(offset);
+
+        return my_chip->irq_base + offset;
 }
 
 int __init s5p_register_gpioint_bank(int chain_irq, int start, int nr_groups)
diff --git a/arch/arm/plat-samsung/setup-camif.c b/arch/arm/plat-samsung/setup-camif.c
new file mode 100644
index 000000000000..e01bf760af2c
--- /dev/null
+++ b/arch/arm/plat-samsung/setup-camif.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2012 Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
+ *
+ * Helper functions for S3C24XX/S3C64XX SoC series CAMIF driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/gpio.h>
+#include <plat/gpio-cfg.h>
+
+/* Number of camera port pins, without FIELD */
+#define S3C_CAMIF_NUM_GPIOS     13
+
+/* Default camera port configuration helpers. */
+
+static void camif_get_gpios(int *gpio_start, int *gpio_reset)
+{
+#ifdef CONFIG_ARCH_S3C24XX
+        *gpio_start = S3C2410_GPJ(0);
+        *gpio_reset = S3C2410_GPJ(12);
+#else
+        /* s3c64xx */
+        *gpio_start = S3C64XX_GPF(0);
+        *gpio_reset = S3C64XX_GPF(3);
+#endif
+}
+
+int s3c_camif_gpio_get(void)
+{
+        int gpio_start, gpio_reset;
+        int ret, i;
+
+        camif_get_gpios(&gpio_start, &gpio_reset);
+
+        for (i = 0; i < S3C_CAMIF_NUM_GPIOS; i++) {
+                int gpio = gpio_start + i;
+
+                if (gpio == gpio_reset)
+                        continue;
+
+                ret = gpio_request(gpio, "camif");
+                if (!ret)
+                        ret = s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
+                if (ret) {
+                        pr_err("failed to configure GPIO %d\n", gpio);
+                        for (--i; i >= 0; i--)
+                                gpio_free(gpio--);
+                        return ret;
+                }
+                s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
+        }
+
+        return 0;
+}
+
+void s3c_camif_gpio_put(void)
+{
+        int i, gpio_start, gpio_reset;
+
+        camif_get_gpios(&gpio_start, &gpio_reset);
+
+        for (i = 0; i < S3C_CAMIF_NUM_GPIOS; i++) {
+                int gpio = gpio_start + i;
+                if (gpio != gpio_reset)
+                        gpio_free(gpio);
+        }
+}