Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / linux / platform_data / at91_adc.h

diff --git a/kernel/include/linux/platform_data/at91_adc.h b/kernel/include/linux/platform_data/at91_adc.h
new file mode 100644 (file)
index 0000000..7819fc7
--- /dev/null
+++ b/kernel/include/linux/platform_data/at91_adc.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2011 Free Electrons
+ *
+ * Licensed under the GPLv2 or later.
+ */
+
+#ifndef _AT91_ADC_H_
+#define _AT91_ADC_H_
+
+enum atmel_adc_ts_type {
+       ATMEL_ADC_TOUCHSCREEN_NONE = 0,
+       ATMEL_ADC_TOUCHSCREEN_4WIRE = 4,
+       ATMEL_ADC_TOUCHSCREEN_5WIRE = 5,
+};
+
+/**
+ * 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
+ * @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
+ * @touchscreen_type:          If a touchscreen is connected, its type (4 or 5 wires)
+ */
+struct at91_adc_data {
+       unsigned long                   channels_used;
+       u8                              startup_time;
+       struct at91_adc_trigger         *trigger_list;
+       u8                              trigger_number;
+       bool                            use_external_triggers;
+       u16                             vref;
+       enum atmel_adc_ts_type          touchscreen_type;
+};
+
+extern void __init at91_add_device_adc(struct at91_adc_data *data);
+#endif