linux-kernel - [PATCH v6 12/14] USB: typec: Add trace for tps25750 irq

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Message-Id: <20230923073959.86660-13-alkuor@gmail.com>
Date:   Sat, 23 Sep 2023 03:39:57 -0400
From:   Abdel Alkuor <alkuor@...il.com>
To:     heikki.krogerus@...ux.intel.com, krzysztof.kozlowski+dt@...aro.org,
        bryan.odonoghue@...aro.org
Cc:     gregkh@...uxfoundation.org, robh+dt@...nel.org,
        linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, conor+dt@...nel.org,
        ryan.eleceng@...il.com, Abdel Alkuor <abdelalkuor@...tab.com>
Subject: [PATCH v6 12/14] USB: typec: Add trace for tps25750 irq

From: Abdel Alkuor <abdelalkuor@...tab.com>

tps25750 event1 register doesn't have all bits in tps6598x
event registers, only show the events that are masked

Signed-off-by: Abdel Alkuor <abdelalkuor@...tab.com>
---
Changes in v6:
  - Add trace irq to tipd callbacks factory
Changes in v5:
  - Incorporating tps25750 into tps6598x driver

 drivers/usb/typec/tipd/core.c  | 17 ++++++++++++++++-
 drivers/usb/typec/tipd/trace.h | 22 ++++++++++++++++++++++
 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c
index 661ded2ff2d5..ba28ce477f21 100644
--- a/drivers/usb/typec/tipd/core.c
+++ b/drivers/usb/typec/tipd/core.c
@@ -110,6 +110,7 @@ struct tipd_data {
 	int (*read_events)(struct tps6598x *tps, void *events);
 	int (*clear_events)(struct tps6598x *tps, void *events);
 	int (*register_port)(struct tps6598x *tps, struct fwnode_handle *node);
+	void (*trace_irq)(void *events);
 };
 
 struct tps6598x {
@@ -534,6 +535,13 @@ static int tps6598x_clear_events(struct tps6598x *tps, void *events)
 	       tps6598x_write64(tps, TPS_REG_INT_CLEAR2, e[1]);
 }
 
+static void tps6598x_trace_irq(void *events)
+{
+	uint64_t *e = events;
+
+	trace_tps6598x_irq(e[0], e[1]);
+}
+
 static int tps25750_read_events(struct tps6598x *tps, void *events)
 {
 	return tps6598x_block_read(tps, TPS_REG_INT_EVENT1, events, 11);
@@ -544,6 +552,11 @@ static int tps25750_clear_events(struct tps6598x *tps, void *events)
 	return tps6598x_block_write(tps, TPS_REG_INT_CLEAR1, events, 11);
 }
 
+static void tps25750_trace_irq(void *events)
+{
+	trace_tps25750_irq(*(uint64_t *)events);
+}
+
 static irqreturn_t cd321x_interrupt(int irq, void *data)
 {
 	struct tps6598x *tps = data;
@@ -610,7 +623,7 @@ static irqreturn_t tps6598x_interrupt(int irq, void *data)
 		dev_err(tps->dev, "%s: failed to read events\n", __func__);
 		goto err_unlock;
 	}
-	trace_tps6598x_irq(event[0], event[1]);
+	tps->cb.trace_irq(event);
 
 	if (!(event[0] | event[1]))
 		goto err_unlock;
@@ -1155,6 +1168,7 @@ static const struct tipd_data tps6598x_data = {
 	.read_events = tps6598x_read_events,
 	.clear_events = tps6598x_clear_events,
 	.register_port = tps6598x_register_port,
+	.trace_irq = tps6598x_trace_irq,
 };
 
 static const struct tipd_data tps25750_data = {
@@ -1162,6 +1176,7 @@ static const struct tipd_data tps25750_data = {
 	.read_events = tps25750_read_events,
 	.clear_events = tps25750_clear_events,
 	.register_port = tps25750_register_port,
+	.trace_irq = tps25750_trace_irq,
 };
 
 static int tps6598x_probe(struct i2c_client *client)
diff --git a/drivers/usb/typec/tipd/trace.h b/drivers/usb/typec/tipd/trace.h
index 12cad1bde7cc..28725234a2d8 100644
--- a/drivers/usb/typec/tipd/trace.h
+++ b/drivers/usb/typec/tipd/trace.h
@@ -74,6 +74,13 @@
 		{ APPLE_CD_REG_INT_DATA_STATUS_UPDATE,		"DATA_STATUS_UPDATE" }, \
 		{ APPLE_CD_REG_INT_STATUS_UPDATE,		"STATUS_UPDATE" })
 
+#define show_tps25750_irq_flags(flags) \
+	__print_flags_u64(flags, "|", \
+		{ TPS_REG_INT_PLUG_EVENT,			"PLUG_EVENT" }, \
+		{ TPS_REG_INT_POWER_STATUS_UPDATE,		"POWER_STATUS_UPDATE" }, \
+		{ TPS_REG_INT_STATUS_UPDATE,			"STATUS_UPDATE" }, \
+		{ TPS_REG_INT_PD_STATUS_UPDATE,			"PD_STATUS_UPDATE" })
+
 #define TPS6598X_STATUS_FLAGS_MASK (GENMASK(31, 0) ^ (TPS_STATUS_CONN_STATE_MASK | \
 						      TPS_STATUS_PP_5V0_SWITCH_MASK | \
 						      TPS_STATUS_PP_HV_SWITCH_MASK | \
@@ -230,6 +237,21 @@ TRACE_EVENT(cd321x_irq,
 		      show_cd321x_irq_flags(__entry->event))
 );
 
+TRACE_EVENT(tps25750_irq,
+	    TP_PROTO(u64 event),
+	    TP_ARGS(event),
+
+	    TP_STRUCT__entry(
+			     __field(u64, event)
+			     ),
+
+	    TP_fast_assign(
+			   __entry->event = event;
+			   ),
+
+	    TP_printk("event=%s", show_tps25750_irq_flags(__entry->event))
+);
+
 TRACE_EVENT(tps6598x_status,
 	    TP_PROTO(u32 status),
 	    TP_ARGS(status),
-- 
2.34.1