3 files changed, 49 insertions, 2 deletions

diff --git a/arch/arm/plat-s3c/include/plat/adc.h b/arch/arm/plat-s3c/include/plat/adc.h
index d847bd476b6c..5f3b1cd53b90 100644
--- a/arch/arm/plat-s3c/include/plat/adc.h
+++ b/arch/arm/plat-s3c/include/plat/adc.h
@@ -19,10 +19,14 @@ struct s3c_adc_client;
 extern int s3c_adc_start(struct s3c_adc_client *client,
                          unsigned int channel, unsigned int nr_samples);
 
+extern int s3c_adc_read(struct s3c_adc_client *client, unsigned int ch);
+
 extern struct s3c_adc_client *
         s3c_adc_register(struct platform_device *pdev,
-                         void (*select)(unsigned selected),
-                         void (*conv)(unsigned d0, unsigned d1,
+                         void (*select)(struct s3c_adc_client *client,
+                                        unsigned selected),
+                         void (*conv)(struct s3c_adc_client *client,
+                                      unsigned d0, unsigned d1,
                                       unsigned *samples_left),
                          unsigned int is_ts);
 
diff --git a/arch/arm/plat-s3c/include/plat/devs.h b/arch/arm/plat-s3c/include/plat/devs.h
index 2e6599411c28..0f540ea1e999 100644
--- a/arch/arm/plat-s3c/include/plat/devs.h
+++ b/arch/arm/plat-s3c/include/plat/devs.h
@@ -46,6 +46,8 @@ extern struct platform_device s3c_device_hsmmc2;
 extern struct platform_device s3c_device_spi0;
 extern struct platform_device s3c_device_spi1;
 
+extern struct platform_device s3c_device_hwmon;
+
 extern struct platform_device s3c_device_nand;
 
 extern struct platform_device s3c_device_usbgadget;
diff --git a/arch/arm/plat-s3c/include/plat/hwmon.h b/arch/arm/plat-s3c/include/plat/hwmon.h
new file mode 100644
index 000000000000..1ba88ea0aa31
--- /dev/null
+++ b/arch/arm/plat-s3c/include/plat/hwmon.h
@@ -0,0 +1,41 @@
+/* linux/arch/arm/plat-s3c/include/plat/hwmon.h
+ *
+ * Copyright 2005 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *      http://armlinux.simtec.co.uk/
+ *
+ * S3C - HWMon interface for ADC
+ *
+ * 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.
+*/
+
+#ifndef __ASM_ARCH_ADC_HWMON_H
+#define __ASM_ARCH_ADC_HWMON_H __FILE__
+
+/**
+ * s3c_hwmon_chcfg - channel configuration
+ * @name: The name to give this channel.
+ * @mult: Multiply the ADC value read by this.
+ * @div: Divide the value from the ADC by this.
+ *
+ * The value read from the ADC is converted to a value that
+ * hwmon expects (mV) by result = (value_read * @mult) / @div.
+ */
+struct s3c_hwmon_chcfg {
+        const char      *name;
+        unsigned int    mult;
+        unsigned int    div;
+};
+
+/**
+ * s3c_hwmon_pdata - HWMON platform data
+ * @in: One configuration for each possible channel used.
+ */
+struct s3c_hwmon_pdata {
+        struct s3c_hwmon_chcfg  *in[8];
+};
+
+#endif /* __ASM_ARCH_ADC_HWMON_H */
+