Minor fixes for Radxa Dragon Q8B

arch/arm64/boot/dts/qcom/sc8280xp-radxa-dragon-q8b.dts

@@ -26,6 +26,21 @@
 		serial1 = &uart2;
 	};
 
+	adp12v_voltage: voltage-divider-adp12v {
+		compatible = "voltage-divider";
+		io-channels = <&pmk8280_vadc PM8350_ADC7_AMUX_THM5(1)>;
+		#io-channel-cells = <1>;
+
+		/* R470 (110K) in series with R471 (10K) to ground. */
+		full-ohms = <120000>;
+		output-ohms = <10000>;
+	};
+
+	adp12v-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&adp12v_voltage 0>;
+	};
+
 	wcd938x: audio-codec {
 		compatible = "qcom,wcd9385-codec";
 
@@ -1358,6 +1373,13 @@
 };
 
 &pmk8280_vadc {
+	channel@108 {
+		reg = <PM8350_ADC7_AMUX_THM5(1)>;
+		qcom,hw-settle-time = <200>;
+		qcom,pre-scaling = <1 1>;
+		label = "adp12v_det";
+	};
+
 	channel@144 {
 		reg = <PM8350_ADC7_AMUX_THM1_100K_PU(1)>;
 		qcom,hw-settle-time = <200>;
@@ -1458,6 +1480,8 @@
 	pinctrl-1 = <&sdc2_sleep_state>;
 	pinctrl-names = "default", "sleep";
 
+	full-pwr-cycle;
+
 	vmmc-supply = <&vreg_l9c>;
 	vqmmc-supply = <&vreg_l6c>;
 

drivers/iio/adc/qcom-spmi-adc5.c

@@ -574,6 +574,8 @@ static const struct adc5_channels adc7_chans_pmic[ADC5_MAX_CHANNEL] = {
 					SCALE_HW_CALIB_DEFAULT)
 	[ADC7_DIE_TEMP]		= ADC5_CHAN_TEMP("die_temp", 0,
 					SCALE_HW_CALIB_PMIC_THERM_PM7)
+	[ADC7_AMUX_THM5]	= ADC5_CHAN_VOLT("amux_thm5", 0,
+					SCALE_HW_CALIB_MILLIVOLT)
 	[ADC7_GPIO1]	= ADC5_CHAN_VOLT("gpio1", 0,
 					SCALE_HW_CALIB_DEFAULT)
 	[ADC7_GPIO2]	= ADC5_CHAN_VOLT("gpio2", 0,

drivers/iio/adc/qcom-vadc-common.c

@@ -305,6 +305,10 @@ static int qcom_vadc_scale_hw_calib_volt(
 				const struct u32_fract *prescale,
 				const struct adc5_data *data,
 				u16 adc_code, int *result_uv);
+static int qcom_vadc_scale_hw_calib_millivolt(
+				const struct u32_fract *prescale,
+				const struct adc5_data *data,
+				u16 adc_code, int *result_mv);
 static int qcom_vadc_scale_hw_calib_therm(
 				const struct u32_fract *prescale,
 				const struct adc5_data *data,
@@ -332,6 +336,7 @@ static int qcom_vadc7_scale_hw_calib_die_temp(
 
 static const struct qcom_adc5_scale_type scale_adc5_fn[] = {
 	[SCALE_HW_CALIB_DEFAULT] = {qcom_vadc_scale_hw_calib_volt},
+	[SCALE_HW_CALIB_MILLIVOLT] = {qcom_vadc_scale_hw_calib_millivolt},
 	[SCALE_HW_CALIB_THERM_100K_PULLUP] = {qcom_vadc_scale_hw_calib_therm},
 	[SCALE_HW_CALIB_XOTHERM] = {qcom_vadc_scale_hw_calib_therm},
 	[SCALE_HW_CALIB_THERM_100K_PU_PM7] = {
@@ -567,6 +572,17 @@ static int qcom_vadc_scale_hw_calib_volt(
 	return 0;
 }
 
+static int qcom_vadc_scale_hw_calib_millivolt(
+				const struct u32_fract *prescale,
+				const struct adc5_data *data,
+				u16 adc_code, int *result_mv)
+{
+	*result_mv = qcom_vadc_scale_code_voltage_factor(adc_code,
+				prescale, data, 1000);
+
+	return 0;
+}
+
 static int qcom_vadc_scale_hw_calib_therm(
 				const struct u32_fract *prescale,
 				const struct adc5_data *data,

drivers/rpmsg/qcom_glink_native.c

@@ -1399,13 +1399,13 @@ static void qcom_glink_remove_rpmsg_device(struct qcom_glink *glink, struct glin
 {
 	struct rpmsg_channel_info chinfo;
 
-	if (channel->rpdev) {
-		strscpy_pad(chinfo.name, channel->name, sizeof(chinfo.name));
-		chinfo.src = RPMSG_ADDR_ANY;
-		chinfo.dst = RPMSG_ADDR_ANY;
-		rpmsg_unregister_device(glink->dev, &chinfo);
-	}
-	channel->rpdev = NULL;
+	if (!xchg(&channel->rpdev, NULL))
+		return;
+
+	strscpy_pad(chinfo.name, channel->name, sizeof(chinfo.name));
+	chinfo.src = RPMSG_ADDR_ANY;
+	chinfo.dst = RPMSG_ADDR_ANY;
+	rpmsg_unregister_device(glink->dev, &chinfo);
 }
 
 static void qcom_glink_destroy_ept(struct rpmsg_endpoint *ept)
@@ -1418,8 +1418,14 @@ static void qcom_glink_destroy_ept(struct rpmsg_endpoint *ept)
 	channel->ept.cb = NULL;
 	spin_unlock_irqrestore(&channel->recv_lock, flags);
 
-	/* Decouple the potential rpdev from the channel */
-	qcom_glink_remove_rpmsg_device(glink, channel);
+	/*
+	 * rpmsg core destroys the default endpoint with the rpdev's device lock
+	 * held. Defer unregistering that rpdev until CLOSE/CLOSE_ACK is received.
+	 * A manually created endpoint may own a different rpdev, which must be
+	 * removed now.
+	 */
+	if (channel->rpdev != ept->rpdev)
+		qcom_glink_remove_rpmsg_device(glink, channel);
 
 	qcom_glink_send_close_req(glink, channel);
 }
@@ -1676,6 +1682,7 @@ static int qcom_glink_rx_open(struct qcom_glink *glink, unsigned int rcid,
 		}
 
 		rpdev->ept = &channel->ept;
+		channel->ept.rpdev = rpdev;
 		strscpy(rpdev->id.name, name);
 		rpdev->src = RPMSG_ADDR_ANY;
 		rpdev->dst = RPMSG_ADDR_ANY;
@@ -1880,6 +1887,7 @@ static int qcom_glink_create_chrdev(struct qcom_glink *glink)
 	channel->rpdev = rpdev;
 
 	rpdev->ept = &channel->ept;
+	channel->ept.rpdev = rpdev;
 	rpdev->ops = &glink_device_ops;
 	rpdev->dev.parent = glink->dev;
 	rpdev->dev.release = qcom_glink_device_release;

drivers/soc/qcom/pmic_pdcharger_ulog.c

@@ -20,10 +20,14 @@
 #define GET_CHG_ULOG_REQ		0x18
 #define SET_CHG_ULOG_PROP_REQ		0x19
 
-#define LOG_DEFAULT_TIME_MS		1000
+#define LOG_DEFAULT_TIME_MS		100
 
 #define MAX_ULOG_SIZE			8192
 
+static bool log_to_dmesg;
+module_param(log_to_dmesg, bool, 0644);
+MODULE_PARM_DESC(log_to_dmesg, "Print PMIC ChargerPD ULOG messages to dmesg");
+
 struct pmic_pdcharger_ulog_hdr {
 	__le32 owner;
 	__le32 type;
@@ -93,8 +97,11 @@ static void pmic_pdcharger_ulog_handle_message(struct pmic_pdcharger_ulog *pg,
 
 	do {
 		token = strsep((char **)&buf, "\n");
-		if (token && strlen(token))
+		if (token && strlen(token)) {
 			trace_pmic_pdcharger_ulog_msg(token);
+			if (log_to_dmesg)
+				pr_info("pmic_pdcharger_ulog: %s\n", token);
+		}
 	} while (token);
 }
 

include/linux/iio/adc/qcom-vadc-common.h

@@ -91,6 +91,8 @@ struct vadc_linear_graph {
  * @SCALE_PMI_CHG_TEMP: Conversion for PMI CHG temp
  * @SCALE_HW_CALIB_DEFAULT: Default scaling to convert raw adc code to
  *	voltage (uV) with hardware applied offset/slope values to adc code.
+ * @SCALE_HW_CALIB_MILLIVOLT: Convert raw ADC code to voltage (mV) with
+ *	hardware applied offset/slope values to the ADC code.
  * @SCALE_HW_CALIB_THERM_100K_PULLUP: Returns temperature in millidegC using
  *	lookup table. The hardware applies offset/slope to adc code.
  * @SCALE_HW_CALIB_XOTHERM: Returns XO thermistor voltage in millidegC using
@@ -120,6 +122,7 @@ enum vadc_scale_fn_type {
 	SCALE_HW_CALIB_PMIC_THERM_PM7,
 	SCALE_HW_CALIB_PM5_CHG_TEMP,
 	SCALE_HW_CALIB_PM5_SMB_TEMP,
+	SCALE_HW_CALIB_MILLIVOLT,
 	/* private: */
 	SCALE_HW_CALIB_INVALID,
 };