5 files changed, 52 insertions, 6 deletions

diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 1c2fe91c23e9..72da6461db12 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -132,6 +132,12 @@ config S3C_DEV_NAND
 	help
 	  Compile in platform device definition for NAND controller
 
+config S3C64XX_DEV_SPI
+	bool
+	help
+	  Compile in platform device definitions for S3C64XX's type
+	  SPI controllers.
+
 comment "Power management"
 
 config SAMSUNG_PM_DEBUG
diff --git a/arch/arm/plat-samsung/adc.c b/arch/arm/plat-samsung/adc.c
index c7659b7378b1..81caf2135721 100644
--- a/arch/arm/plat-samsung/adc.c
+++ b/arch/arm/plat-samsung/adc.c
@@ -262,6 +262,7 @@ static irqreturn_t s3c_adc_irq(int irq, void *pw)
 {
 	struct adc_device *adc = pw;
 	struct s3c_adc_client *client = adc->cur;
+	enum s3c_cpu_type cpu = platform_get_device_id(adc->pdev)->driver_data;
 	unsigned long flags;
 	unsigned data0, data1;
 
@@ -276,9 +277,17 @@ static irqreturn_t s3c_adc_irq(int irq, void *pw)
 
 	client->nr_samples--;
 
+	if (cpu == TYPE_S3C64XX) {
+		/* S3C64XX ADC resolution is 12-bit */
+		data0 &= 0xfff;
+		data1 &= 0xfff;
+	} else {
+		data0 &= 0x3ff;
+		data1 &= 0x3ff;
+	}
+
 	if (client->convert_cb)
-		(client->convert_cb)(client, data0 & 0x3ff, data1 & 0x3ff,
-				     &client->nr_samples);
+		(client->convert_cb)(client, data0, data1, &client->nr_samples);
 
 	if (client->nr_samples > 0) {
 		/* fire another conversion for this */
@@ -295,7 +304,7 @@ static irqreturn_t s3c_adc_irq(int irq, void *pw)
 	}
 
 exit:
-	if (platform_get_device_id(adc->pdev)->driver_data == TYPE_S3C64XX) {
+	if (cpu == TYPE_S3C64XX) {
 		/* Clear ADC interrupt */
 		writel(0, adc->regs + S3C64XX_ADCCLRINT);
 	}
@@ -308,6 +317,7 @@ static int s3c_adc_probe(struct platform_device *pdev)
 	struct adc_device *adc;
 	struct resource *regs;
 	int ret;
+	unsigned tmp;
 
 	adc = kzalloc(sizeof(struct adc_device), GFP_KERNEL);
 	if (adc == NULL) {
@@ -354,8 +364,12 @@ static int s3c_adc_probe(struct platform_device *pdev)
 
 	clk_enable(adc->clk);
 
-	writel(adc->prescale | S3C2410_ADCCON_PRSCEN,
-	       adc->regs + S3C2410_ADCCON);
+	tmp = adc->prescale | S3C2410_ADCCON_PRSCEN;
+	if (platform_get_device_id(pdev)->driver_data == TYPE_S3C64XX) {
+		/* Enable 12-bit ADC resolution */
+		tmp |= S3C64XX_ADCCON_RESSEL;
+	}
+	writel(tmp, adc->regs + S3C2410_ADCCON);
 
 	dev_info(dev, "attached adc driver\n");
 
diff --git a/arch/arm/plat-samsung/clock.c b/arch/arm/plat-samsung/clock.c
index e9cdbe47beb6..1b25c9d8c403 100644
--- a/arch/arm/plat-samsung/clock.c
+++ b/arch/arm/plat-samsung/clock.c
@@ -307,6 +307,12 @@ struct clk s3c24xx_uclk = {
 
 /* initialise the clock system */
 
+/**
+ * s3c24xx_register_clock() - register a clock
+ * @clk: The clock to register
+ *
+ * Add the specified clock to the list of clocks known by the system.
+ */
 int s3c24xx_register_clock(struct clk *clk)
 {
 	if (clk->enable == NULL)
@@ -324,13 +330,25 @@ int s3c24xx_register_clock(struct clk *clk)
 	return 0;
 }
 
+/**
+ * s3c24xx_register_clocks() - register an array of clock pointers
+ * @clks: Pointer to an array of struct clk pointers
+ * @nr_clks: The number of clocks in the @clks array.
+ *
+ * Call s3c24xx_register_clock() for all the clock pointers contained
+ * in the @clks list. Returns the number of failures.
+ */
 int s3c24xx_register_clocks(struct clk **clks, int nr_clks)
 {
 	int fails = 0;
 
 	for (; nr_clks > 0; nr_clks--, clks++) {
-		if (s3c24xx_register_clock(*clks) < 0)
+		if (s3c24xx_register_clock(*clks) < 0) {
+			struct clk *clk = *clks;
+			printk(KERN_ERR "%s: failed to register %p: %s\n",
+			       __func__, clk, clk->name);
 			fails++;
+		}
 	}
 
 	return fails;
diff --git a/arch/arm/plat-samsung/dev-usb-hsotg.c b/arch/arm/plat-samsung/dev-usb-hsotg.c
index e2f604b51c86..33a844ab6917 100644
--- a/arch/arm/plat-samsung/dev-usb-hsotg.c
+++ b/arch/arm/plat-samsung/dev-usb-hsotg.c
@@ -14,6 +14,7 @@
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
 
 #include <mach/irqs.h>
 #include <mach/map.h>
@@ -33,9 +34,15 @@ static struct resource s3c_usb_hsotg_resources[] = {
 	},
 };
 
+static u64 s3c_hsotg_dmamask = DMA_BIT_MASK(32);
+
 struct platform_device s3c_device_usb_hsotg = {
 	.name		= "s3c-hsotg",
 	.id		= -1,
 	.num_resources	= ARRAY_SIZE(s3c_usb_hsotg_resources),
 	.resource	= s3c_usb_hsotg_resources,
+	.dev		= {
+		.dma_mask		= &s3c_hsotg_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
 };
diff --git a/arch/arm/plat-samsung/include/plat/regs-adc.h b/arch/arm/plat-samsung/include/plat/regs-adc.h
index f43c8dab39e4..7554c4fcddb9 100644
--- a/arch/arm/plat-samsung/include/plat/regs-adc.h
+++ b/arch/arm/plat-samsung/include/plat/regs-adc.h
@@ -25,6 +25,7 @@
 
 
 /* ADCCON Register Bits */
+#define S3C64XX_ADCCON_RESSEL		(1<<16)
 #define S3C2410_ADCCON_ECFLG		(1<<15)
 #define S3C2410_ADCCON_PRSCEN		(1<<14)
 #define S3C2410_ADCCON_PRSCVL(x)	(((x)&0xFF)<<6)