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Message-Id: <20250821-atcphy-6-17-v1-11-172beda182b8@kernel.org>
Date: Thu, 21 Aug 2025 15:39:03 +0000
From: Sven Peter <sven@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Felipe Balbi <balbi@...nel.org>,
Janne Grunau <j@...nau.net>, Alyssa Rosenzweig <alyssa@...enzweig.io>,
Neal Gompa <neal@...pa.dev>, Vinod Koul <vkoul@...nel.org>,
Kishon Vijay Abraham I <kishon@...nel.org>,
Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
Philipp Zabel <p.zabel@...gutronix.de>
Cc: linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, asahi@...ts.linux.dev,
linux-arm-kernel@...ts.infradead.org, linux-phy@...ts.infradead.org,
Sven Peter <sven@...nel.org>
Subject: [PATCH RFC 11/22] usb: typec: tipd: Trace data status for CD321x
correctly
Some bits inside the CD321x TPS_DATA_STATUS register have a different
function compared to the original tipd chip. Add these and introduce a
separate trace function to show them correctly.
Signed-off-by: Sven Peter <sven@...nel.org>
---
drivers/usb/typec/tipd/core.c | 8 +++++++-
drivers/usb/typec/tipd/tps6598x.h | 5 +++++
drivers/usb/typec/tipd/trace.h | 39 +++++++++++++++++++++++++++++++++++++++
3 files changed, 51 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c
index 4815c5c462837865a5f9d37bbc139249c82c2f75..19d713937870304e68325a441b0de63eb5db3b80 100644
--- a/drivers/usb/typec/tipd/core.c
+++ b/drivers/usb/typec/tipd/core.c
@@ -114,6 +114,7 @@ struct tipd_data {
irq_handler_t irq_handler;
u64 irq_mask1;
int (*register_port)(struct tps6598x *tps, struct fwnode_handle *node);
+ void (*trace_data_status)(u32 status);
void (*trace_power_status)(u16 status);
void (*trace_status)(u32 status);
int (*apply_patch)(struct tps6598x *tps);
@@ -492,7 +493,9 @@ static bool tps6598x_read_data_status(struct tps6598x *tps)
dev_err(tps->dev, "failed to read data status: %d\n", ret);
return false;
}
- trace_tps6598x_data_status(data_status);
+
+ if (tps->data->trace_data_status)
+ tps->data->trace_data_status(data_status);
return true;
}
@@ -1519,6 +1522,7 @@ static const struct tipd_data cd321x_data = {
APPLE_CD_REG_INT_DATA_STATUS_UPDATE |
APPLE_CD_REG_INT_PLUG_EVENT,
.register_port = tps6598x_register_port,
+ .trace_data_status = trace_cd321x_data_status,
.trace_power_status = trace_tps6598x_power_status,
.trace_status = trace_tps6598x_status,
.init = cd321x_init,
@@ -1532,6 +1536,7 @@ static const struct tipd_data tps6598x_data = {
TPS_REG_INT_DATA_STATUS_UPDATE |
TPS_REG_INT_PLUG_EVENT,
.register_port = tps6598x_register_port,
+ .trace_data_status = trace_tps6598x_data_status,
.trace_power_status = trace_tps6598x_power_status,
.trace_status = trace_tps6598x_status,
.apply_patch = tps6598x_apply_patch,
@@ -1545,6 +1550,7 @@ static const struct tipd_data tps25750_data = {
TPS_REG_INT_DATA_STATUS_UPDATE |
TPS_REG_INT_PLUG_EVENT,
.register_port = tps25750_register_port,
+ .trace_data_status = trace_tps6598x_data_status,
.trace_power_status = trace_tps25750_power_status,
.trace_status = trace_tps25750_status,
.apply_patch = tps25750_apply_patch,
diff --git a/drivers/usb/typec/tipd/tps6598x.h b/drivers/usb/typec/tipd/tps6598x.h
index cecb8d11d23972dab0d8c15458b4052af7510b03..03edbb77bbd6d8093b2560db83e5913e25d06154 100644
--- a/drivers/usb/typec/tipd/tps6598x.h
+++ b/drivers/usb/typec/tipd/tps6598x.h
@@ -197,6 +197,11 @@
#define TPS_DATA_STATUS_FORCE_LSX BIT(23)
#define TPS_DATA_STATUS_POWER_MISMATCH BIT(24)
+/* modified TPS_REG_DATA_STATUS bits for CD321x (and likely also TPS65987DDK) */
+#define CD321X_DATA_STATUS_HPD_IRQ BIT(14)
+#define CD321X_DATA_STATUS_HPD_LEVEL BIT(15)
+#define CD321X_DATA_STATUS_USB4_CONNECTION BIT(23)
+
#define TPS_DATA_STATUS_DP_PIN_ASSIGNMENT_MASK GENMASK(11, 10)
#define TPS_DATA_STATUS_DP_PIN_ASSIGNMENT(x) \
TPS_FIELD_GET(TPS_DATA_STATUS_DP_PIN_ASSIGNMENT_MASK, (x))
diff --git a/drivers/usb/typec/tipd/trace.h b/drivers/usb/typec/tipd/trace.h
index bea383f2db9de5bbf1804fbad9ee6b134407b932..e9e40425138a01f15e35867f38f62e13623dbcec 100644
--- a/drivers/usb/typec/tipd/trace.h
+++ b/drivers/usb/typec/tipd/trace.h
@@ -217,6 +217,26 @@
{ TPS_DATA_STATUS_FORCE_LSX, "FORCE_LSX" }, \
{ TPS_DATA_STATUS_POWER_MISMATCH, "POWER_MISMATCH" })
+#define show_cd321x_data_status_flags(data_status) \
+ __print_flags(data_status & TPS_DATA_STATUS_FLAGS_MASK, "|", \
+ { TPS_DATA_STATUS_DATA_CONNECTION, "DATA_CONNECTION" }, \
+ { TPS_DATA_STATUS_UPSIDE_DOWN, "DATA_UPSIDE_DOWN" }, \
+ { TPS_DATA_STATUS_ACTIVE_CABLE, "ACTIVE_CABLE" }, \
+ { TPS_DATA_STATUS_USB2_CONNECTION, "USB2_CONNECTION" }, \
+ { TPS_DATA_STATUS_USB3_CONNECTION, "USB3_CONNECTION" }, \
+ { TPS_DATA_STATUS_USB3_GEN2, "USB3_GEN2" }, \
+ { TPS_DATA_STATUS_USB_DATA_ROLE, "USB_DATA_ROLE" }, \
+ { TPS_DATA_STATUS_DP_CONNECTION, "DP_CONNECTION" }, \
+ { TPS_DATA_STATUS_DP_SINK, "DP_SINK" }, \
+ { CD321X_DATA_STATUS_HPD_IRQ, "HPD_IRQ" }, \
+ { CD321X_DATA_STATUS_HPD_LEVEL, "HPD_LEVEL" }, \
+ { TPS_DATA_STATUS_TBT_CONNECTION, "TBT_CONNECTION" }, \
+ { TPS_DATA_STATUS_TBT_TYPE, "TBT_TYPE" }, \
+ { TPS_DATA_STATUS_OPTICAL_CABLE, "OPTICAL_CABLE" }, \
+ { TPS_DATA_STATUS_ACTIVE_LINK_TRAIN, "ACTIVE_LINK_TRAIN" }, \
+ { CD321X_DATA_STATUS_USB4_CONNECTION, "USB4" }, \
+ { TPS_DATA_STATUS_POWER_MISMATCH, "POWER_MISMATCH" })
+
#define show_data_status_dp_pin_assignment(data_status) \
__print_symbolic(TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT(data_status), \
{ TPS_DATA_STATUS_DP_SPEC_PIN_ASSIGNMENT_E, "E" }, \
@@ -388,6 +408,25 @@ TRACE_EVENT(tps6598x_data_status,
)
);
+TRACE_EVENT(cd321x_data_status,
+ TP_PROTO(u32 data_status),
+ TP_ARGS(data_status),
+
+ TP_STRUCT__entry(
+ __field(u32, data_status)
+ ),
+
+ TP_fast_assign(
+ __entry->data_status = data_status;
+ ),
+
+ TP_printk("%s%s%s",
+ show_cd321x_data_status_flags(__entry->data_status),
+ __entry->data_status & TPS_DATA_STATUS_DP_CONNECTION ? ", DP pinout " : "",
+ maybe_show_data_status_dp_pin_assignment(__entry->data_status)
+ )
+);
+
#endif /* _TPS6598X_TRACE_H_ */
/* This part must be outside protection */
--
2.34.1
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