1 files changed, 61 insertions, 0 deletions

diff --git a/include/linux/platform_data/at91_adc.h b/include/linux/platform_data/at91_adc.h
new file mode 100644
index 000000000000..e15745b4f3a5
--- /dev/null
+++ b/include/linux/platform_data/at91_adc.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2011 Free Electrons
+ *
+ * Licensed under the GPLv2 or later.
+ */
+
+#ifndef _AT91_ADC_H_
+#define _AT91_ADC_H_
+
+/**
+ * struct at91_adc_reg_desc - Various informations relative to registers
+ * @channel_base:       Base offset for the channel data registers
+ * @drdy_mask:          Mask of the DRDY field in the relevant registers
+                        (Interruptions registers mostly)
+ * @status_register:    Offset of the Interrupt Status Register
+ * @trigger_register:   Offset of the Trigger setup register
+ */
+struct at91_adc_reg_desc {
+        u8      channel_base;
+        u32     drdy_mask;
+        u8      status_register;
+        u8      trigger_register;
+};
+
+/**
+ * struct at91_adc_trigger - description of triggers
+ * @name:               name of the trigger advertised to the user
+ * @value:              value to set in the ADC's trigger setup register
+                        to enable the trigger
+ * @is_external:        Does the trigger rely on an external pin?
+ */
+struct at91_adc_trigger {
+        const char      *name;
+        u8              value;
+        bool            is_external;
+};
+
+/**
+ * struct at91_adc_data - platform data for ADC driver
+ * @channels_used:              channels in use on the board as a bitmask
+ * @num_channels:               global number of channels available on the board
+ * @registers:                  Registers definition on the board
+ * @startup_time:               startup time of the ADC in microseconds
+ * @trigger_list:               Triggers available in the ADC
+ * @trigger_number:             Number of triggers available in the ADC
+ * @use_external_triggers:      does the board has external triggers availables
+ * @vref:                       Reference voltage for the ADC in millivolts
+ */
+struct at91_adc_data {
+        unsigned long                   channels_used;
+        u8                              num_channels;
+        struct at91_adc_reg_desc        *registers;
+        u8                              startup_time;
+        struct at91_adc_trigger         *trigger_list;
+        u8                              trigger_number;
+        bool                            use_external_triggers;
+        u16                             vref;
+};
+
+extern void __init at91_add_device_adc(struct at91_adc_data *data);
+#endif