hwmon: msm_adc: Calibrate HK/XOADC
Calibration for HK/XOADC is done once at init by
msm_adc before the first ADC reading is processed.
Calibration performed for every ADC read is expensive
and not recommended. Remove support to request
calibration by ADC clients.
Add stubs for pmic8058 xoadc functions to fix
featurization
Change-Id: I7f0e165bddaa49c5daf33df5ed77428ccc1434c5
Signed-off-by: Vijayakumar Muthuvel Manickam <vmuthuve@codeaurora.org>
diff --git a/include/linux/pmic8058-xoadc.h b/include/linux/pmic8058-xoadc.h
index 8a5820f..f72ad66 100644
--- a/include/linux/pmic8058-xoadc.h
+++ b/include/linux/pmic8058-xoadc.h
@@ -65,20 +65,57 @@
u32 xoadc_wakeup;
};
-int32_t pm8058_xoadc_read_adc_code(uint32_t , int32_t *data);
+#ifdef CONFIG_PMIC8058_XOADC
+int32_t pm8058_xoadc_read_adc_code(uint32_t adc_instance, int32_t *data);
-int32_t pm8058_xoadc_select_chan_and_start_conv(uint32_t,
- struct adc_conv_slot *);
+int32_t pm8058_xoadc_select_chan_and_start_conv(uint32_t adc_instance,
+ struct adc_conv_slot *slot);
-void pm8058_xoadc_slot_request(uint32_t, struct adc_conv_slot **slot);
+void pm8058_xoadc_slot_request(uint32_t adc_instance,
+ struct adc_conv_slot **slot);
-void pm8058_xoadc_restore_slot(uint32_t, struct adc_conv_slot *slot);
+void pm8058_xoadc_restore_slot(uint32_t adc_instance,
+ struct adc_conv_slot *slot);
-struct adc_properties *pm8058_xoadc_get_properties(uint32_t);
+struct adc_properties *pm8058_xoadc_get_properties(uint32_t dev_instance);
-int32_t pm8058_xoadc_calibrate(uint32_t, struct adc_conv_slot *, int *);
+int32_t pm8058_xoadc_calibrate(uint32_t dev_instance,
+ struct adc_conv_slot *slot, int * calib_status);
int32_t pm8058_xoadc_registered(void);
int32_t pm8058_xoadc_calib_device(uint32_t adc_instance);
+
+#else
+
+static inline int32_t pm8058_xoadc_read_adc_code(uint32_t adc_instance,
+ int32_t *data)
+{ return -ENXIO; }
+
+static inline int32_t pm8058_xoadc_select_chan_and_start_conv(
+ uint32_t adc_instance, struct adc_conv_slot *slot)
+{ return -ENXIO; }
+
+static inline void pm8058_xoadc_slot_request(uint32_t adc_instance,
+ struct adc_conv_slot **slot)
+{ return; }
+
+static inline void pm8058_xoadc_restore_slot(uint32_t adc_instance,
+ struct adc_conv_slot *slot)
+{ return; }
+
+static inline struct adc_properties *pm8058_xoadc_get_properties(
+ uint32_t dev_instance)
+{ return NULL; }
+
+static inline int32_t pm8058_xoadc_calibrate(uint32_t dev_instance,
+ struct adc_conv_slot *slot, int *calib_status)
+{ return -ENXIO; }
+
+static inline int32_t pm8058_xoadc_registered(void)
+{ return -ENXIO; }
+
+static inline int32_t pm8058_xoadc_calib_device(uint32_t adc_instance)
+{ return -ENXIO; }
+#endif
#endif