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authorBen Dooks <ben@simtec.co.uk>2009-07-18 13:12:28 +0400
committerBen Dooks <ben-linux@fluff.org>2009-07-18 13:15:54 +0400
commitbff78650a2b0ed42b8fb134b6a9b387e00027d67 (patch)
tree63eb51aafad3f5f8039d9c8a9847c599e7ff95d8 /arch/arm/plat-s3c/include
parente170adcb406504b8acd35554c69830c11916be1f (diff)
downloadlinux-bff78650a2b0ed42b8fb134b6a9b387e00027d67.tar.xz
ARM: HWMON: S3C24XX series ADC driver
Add support for the ADC controller on the S3C series of processors to drivers/hwmon for use with hardware monitoring systems. Signed-off-by: Ben Dooks <ben@simtec.co.uk> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/plat-s3c/include')
-rw-r--r--arch/arm/plat-s3c/include/plat/hwmon.h41
1 files changed, 41 insertions, 0 deletions
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 */
+