mfd: ab8500-gpadc: Add support for the AB8540
This patch enables the GPADC to work on AB8540 based platforms.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/include/linux/mfd/abx500/ab8500-gpadc.h b/include/linux/mfd/abx500/ab8500-gpadc.h
index 7694e7a..4131437 100644
--- a/include/linux/mfd/abx500/ab8500-gpadc.h
+++ b/include/linux/mfd/abx500/ab8500-gpadc.h
@@ -12,19 +12,32 @@
/* GPADC source: From datasheet(ADCSwSel[4:0] in GPADCCtrl2
* and ADCHwSel[4:0] in GPADCCtrl3 ) */
-#define BAT_CTRL 0x01
-#define BTEMP_BALL 0x02
-#define MAIN_CHARGER_V 0x03
-#define ACC_DETECT1 0x04
-#define ACC_DETECT2 0x05
-#define ADC_AUX1 0x06
-#define ADC_AUX2 0x07
-#define MAIN_BAT_V 0x08
-#define VBUS_V 0x09
-#define MAIN_CHARGER_C 0x0A
-#define USB_CHARGER_C 0x0B
-#define BK_BAT_V 0x0C
-#define DIE_TEMP 0x0D
+#define BAT_CTRL 0x01
+#define BTEMP_BALL 0x02
+#define MAIN_CHARGER_V 0x03
+#define ACC_DETECT1 0x04
+#define ACC_DETECT2 0x05
+#define ADC_AUX1 0x06
+#define ADC_AUX2 0x07
+#define MAIN_BAT_V 0x08
+#define VBUS_V 0x09
+#define MAIN_CHARGER_C 0x0A
+#define USB_CHARGER_C 0x0B
+#define BK_BAT_V 0x0C
+#define DIE_TEMP 0x0D
+#define USB_ID 0x0E
+#define XTAL_TEMP 0x12
+#define VBAT_TRUE_MEAS 0x13
+#define BAT_CTRL_AND_IBAT 0x1C
+#define VBAT_MEAS_AND_IBAT 0x1D
+#define VBAT_TRUE_MEAS_AND_IBAT 0x1E
+#define BAT_TEMP_AND_IBAT 0x1F
+
+/* Virtual channel used only for ibat convertion to ampere
+ * Battery current conversion (ibat) cannot be requested as a single conversion
+ * but it is always in combination with other input requests
+ */
+#define IBAT_VIRTUAL_CHANNEL 0xFF
#define SAMPLE_1 1
#define SAMPLE_4 4
@@ -37,7 +50,6 @@
#define ADC_SW 0
#define ADC_HW 1
-
struct ab8500_gpadc;
struct ab8500_gpadc *ab8500_gpadc_get(char *name);
@@ -51,6 +63,9 @@
int ab8500_gpadc_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type);
+int ab8500_gpadc_double_read_raw(struct ab8500_gpadc *gpadc, u8 channel,
+ u8 avg_sample, u8 trig_edge, u8 trig_timer, u8 conv_type,
+ int *ibat);
int ab8500_gpadc_ad_to_voltage(struct ab8500_gpadc *gpadc,
u8 channel, int ad_value);