hwmon: qpnp-voltage: Support multiple device instance
Support multiple voltage ADC device instance. Clients
need to register with the voltage ADC using the device
consumer name used to associate with the corresponding
phandle of the VADC. Clients receive the device instance
which is to be used everytime an ADC request is made.
This change involves changing the interface to issue
ADC request and the corresponding clients changes.
Change-Id: If0557bc657fecd172a8cf960900ee93b4bce37f8
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
diff --git a/drivers/hwmon/qpnp-adc-current.c b/drivers/hwmon/qpnp-adc-current.c
index a453159..606d8dd 100644
--- a/drivers/hwmon/qpnp-adc-current.c
+++ b/drivers/hwmon/qpnp-adc-current.c
@@ -145,6 +145,7 @@
struct mutex iadc_vadc_lock;
bool iadc_mode_sel;
struct qpnp_iadc_comp iadc_comp;
+ struct qpnp_vadc_chip *vadc_dev;
struct sensor_device_attribute sens_attr[0];
bool skip_auto_calibrations;
};
@@ -723,7 +724,7 @@
int64_t die_temp_offset;
int rc = 0;
- rc = qpnp_vadc_read(DIE_TEMP, &result_pmic_therm);
+ rc = qpnp_vadc_read(iadc->vadc_dev, DIE_TEMP, &result_pmic_therm);
if (rc < 0)
return rc;
@@ -882,7 +883,7 @@
iadc->iadc_mode_sel = true;
- rc = qpnp_vadc_iadc_sync_request(v_channel);
+ rc = qpnp_vadc_iadc_sync_request(iadc->vadc_dev, v_channel);
if (rc) {
pr_err("Configuring VADC failed\n");
goto fail;
@@ -893,7 +894,7 @@
pr_err("Configuring IADC failed\n");
/* Intentional fall through to release VADC */
- rc = qpnp_vadc_iadc_sync_complete_request(v_channel,
+ rc = qpnp_vadc_iadc_sync_complete_request(iadc->vadc_dev, v_channel,
v_result);
if (rc)
pr_err("Releasing VADC failed\n");
@@ -1005,6 +1006,14 @@
goto fail;
}
+ iadc->vadc_dev = qpnp_get_vadc(&spmi->dev, "iadc");
+ if (IS_ERR(iadc->vadc_dev)) {
+ rc = PTR_ERR(iadc->vadc_dev);
+ if (rc != -EPROBE_DEFER)
+ pr_err("vadc property missing, rc=%d\n", rc);
+ goto fail;
+ }
+
mutex_init(&iadc->adc->adc_lock);
rc = of_property_read_u32(node, "qcom,rsense",