5 files changed, 79 insertions, 2 deletions

diff --git a/arch/arm/mach-s3c6400/include/mach/map.h b/arch/arm/mach-s3c6400/include/mach/map.h
index d4cd3abe3cba..5a35f24fcb80 100644
--- a/arch/arm/mach-s3c6400/include/mach/map.h
+++ b/arch/arm/mach-s3c6400/include/mach/map.h
@@ -42,6 +42,7 @@
 #define S3C64XX_PA_FB           (0x77100000)
 #define S3C64XX_PA_USB_HSOTG    (0x7C000000)
 #define S3C64XX_PA_WATCHDOG     (0x7E004000)
+#define S3C64XX_PA_ADC          (0x7E00B000)
 #define S3C64XX_PA_SYSCON       (0x7E00F000)
 #define S3C64XX_PA_AC97         (0x7F001000)
 #define S3C64XX_PA_IIS0         (0x7F002000)
diff --git a/arch/arm/plat-s3c/include/plat/regs-adc.h b/arch/arm/plat-s3c/include/plat/regs-adc.h
index 4323cccc86cd..f43c8dab39e4 100644
--- a/arch/arm/plat-s3c/include/plat/regs-adc.h
+++ b/arch/arm/plat-s3c/include/plat/regs-adc.h
@@ -19,6 +19,9 @@
 #define S3C2410_ADCDLY     S3C2410_ADCREG(0x08)
 #define S3C2410_ADCDAT0    S3C2410_ADCREG(0x0C)
 #define S3C2410_ADCDAT1    S3C2410_ADCREG(0x10)
+#define S3C64XX_ADCUPDN         S3C2410_ADCREG(0x14)
+#define S3C64XX_ADCCLRINT       S3C2410_ADCREG(0x18)
+#define S3C64XX_ADCCLRINTPNDNUP S3C2410_ADCREG(0x20)
 
 
 /* ADCCON Register Bits */
diff --git a/arch/arm/plat-s3c64xx/Makefile b/arch/arm/plat-s3c64xx/Makefile
index b85b4359e935..80600176cf2a 100644
--- a/arch/arm/plat-s3c64xx/Makefile
+++ b/arch/arm/plat-s3c64xx/Makefile
@@ -35,6 +35,10 @@ obj-$(CONFIG_PM)		+= irq-pm.o
 
 obj-$(CONFIG_S3C64XX_DMA)       += dma.o
 
+# ADC support
+
+obj-$(CONFIG_S3C_ADC)           += dev-adc.o
+
 # Device setup
 
 obj-$(CONFIG_S3C64XX_SETUP_I2C0) += setup-i2c0.o
diff --git a/arch/arm/plat-s3c64xx/dev-adc.c b/arch/arm/plat-s3c64xx/dev-adc.c
new file mode 100644
index 000000000000..fafef9b6bcfa
--- /dev/null
+++ b/arch/arm/plat-s3c64xx/dev-adc.c
@@ -0,0 +1,46 @@
+/* linux/arch/arm/plat-s3c64xx/dev-adc.c
+ *
+ * Copyright 2010 Maurus Cuelenaere
+ *
+ * S3C64xx series device definition for ADC device
+ *
+ * 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/kernel.h>
+#include <linux/string.h>
+#include <linux/platform_device.h>
+
+#include <mach/irqs.h>
+#include <mach/map.h>
+
+#include <plat/adc.h>
+#include <plat/devs.h>
+#include <plat/cpu.h>
+
+static struct resource s3c_adc_resource[] = {
+        [0] = {
+                .start = S3C64XX_PA_ADC,
+                .end   = S3C64XX_PA_ADC + SZ_256 - 1,
+                .flags = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start = IRQ_TC,
+                .end   = IRQ_TC,
+                .flags = IORESOURCE_IRQ,
+        },
+        [2] = {
+                .start = IRQ_ADC,
+                .end   = IRQ_ADC,
+                .flags = IORESOURCE_IRQ,
+        },
+};
+
+struct platform_device s3c_device_adc = {
+        .name           = "s3c64xx-adc",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(s3c_adc_resource),
+        .resource       = s3c_adc_resource,
+};
diff --git a/arch/arm/plat-samsung/adc.c b/arch/arm/plat-samsung/adc.c
index a8843dd5e1e7..120b7902fc2f 100644
--- a/arch/arm/plat-samsung/adc.c
+++ b/arch/arm/plat-samsung/adc.c
@@ -37,6 +37,11 @@
  * action is required.
  */
 
+enum s3c_cpu_type {
+        TYPE_S3C24XX,
+        TYPE_S3C64XX
+};
+
 struct s3c_adc_client {
         struct platform_device  *pdev;
         struct list_head         pend;
@@ -262,7 +267,7 @@ static irqreturn_t s3c_adc_irq(int irq, void *pw)
 
         if (!client) {
                 dev_warn(&adc->pdev->dev, "%s: no adc pending\n", __func__);
-                return IRQ_HANDLED;
+                goto exit;
         }
 
         data0 = readl(adc->regs + S3C2410_ADCDAT0);
@@ -289,6 +294,11 @@ static irqreturn_t s3c_adc_irq(int irq, void *pw)
                 local_irq_restore(flags);
         }
 
+exit:
+        if (platform_get_device_id(client->pdev)->driver_data == TYPE_S3C64XX) {
+                /* Clear ADC interrupt */
+                writel(0, adc->regs + S3C64XX_ADCCLRINT);
+        }
         return IRQ_HANDLED;
 }
 
@@ -410,9 +420,22 @@ static int s3c_adc_resume(struct platform_device *pdev)
 #define s3c_adc_resume NULL
 #endif
 
+static struct platform_device_id s3c_adc_driver_ids[] = {
+        {
+                .name           = "s3c24xx-adc",
+                .driver_data    = TYPE_S3C24XX,
+        }, {
+                .name           = "s3c64xx-adc",
+                .driver_data    = TYPE_S3C64XX,
+        },
+        { }
+};
+MODULE_DEVICE_TABLE(platform, s3c_adc_driver_ids);
+
 static struct platform_driver s3c_adc_driver = {
+        .id_table       = s3c_adc_driver_ids,
         .driver         = {
-                .name   = "s3c24xx-adc",
+                .name   = "s3c-adc",
                 .owner  = THIS_MODULE,
         },
         .probe          = s3c_adc_probe,