linux-kernel - [PATCH 1/3] usb: typec: ucsi: Stop abuse of bit definitions from ucsi.h

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Date: Wed, 27 Mar 2024 23:45:52 +0100
From: "Christian A. Ehrhardt" <lk@...e.de>
To: linux-kernel@...r.kernel.org,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	Diogo Ivo <diogo.ivo@...nico.ulisboa.pt>
Cc: "Christian A. Ehrhardt" <lk@...e.de>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Prashant Malani <pmalani@...omium.org>,
	Jameson Thies <jthies@...gle.com>,
	Abhishek Pandit-Subedi <abhishekpandit@...omium.org>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
	Samuel Čavoj <samuel@...oj.net>,
	linux-usb@...r.kernel.org
Subject: [PATCH 1/3] usb: typec: ucsi: Stop abuse of bit definitions from ucsi.h

In ucsi.h there are flag definitions for the ->flags field
in struct ucsi. Some implementations abuse these bits for
their private ->flags fields e.g. in struct ucsi_acpi.

Move the definitions into the backend implementations that
still need them. While there fix one instance where the flag
name was not converted in a previous change.

No semantic change intended.

Signed-off-by: Christian A. Ehrhardt <lk@...e.de>
---
 drivers/usb/typec/ucsi/ucsi.h         | 2 --
 drivers/usb/typec/ucsi/ucsi_acpi.c    | 3 ++-
 drivers/usb/typec/ucsi/ucsi_stm32g0.c | 1 +
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h
index 0e7c92eb1b22..591f734d457b 100644
--- a/drivers/usb/typec/ucsi/ucsi.h
+++ b/drivers/usb/typec/ucsi/ucsi.h
@@ -403,8 +403,6 @@ struct ucsi {
 	/* PPM communication flags */
 	unsigned long flags;
 #define EVENT_PENDING	0
-#define COMMAND_PENDING	1
-#define ACK_PENDING	2
 
 	unsigned long quirks;
 #define UCSI_NO_PARTNER_PDOS	BIT(0)	/* Don't read partner's PDOs */
diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c
index 7b3ac133ef86..cc03a49c589c 100644
--- a/drivers/usb/typec/ucsi/ucsi_acpi.c
+++ b/drivers/usb/typec/ucsi/ucsi_acpi.c
@@ -203,7 +203,8 @@ static void ucsi_acpi_notify(acpi_handle handle, u32 event, void *data)
 	    !test_bit(UCSI_ACPI_SUPPRESS_EVENT, &ua->flags))
 		ucsi_connector_change(ua->ucsi, UCSI_CCI_CONNECTOR(cci));
 
-	if (cci & UCSI_CCI_ACK_COMPLETE && test_bit(ACK_PENDING, &ua->flags))
+	if (cci & UCSI_CCI_ACK_COMPLETE &&
+	    test_bit(UCSI_ACPI_ACK_PENDING, &ua->flags))
 		complete(&ua->complete);
 	if (cci & UCSI_CCI_COMMAND_COMPLETE &&
 	    test_bit(UCSI_ACPI_COMMAND_PENDING, &ua->flags))
diff --git a/drivers/usb/typec/ucsi/ucsi_stm32g0.c b/drivers/usb/typec/ucsi/ucsi_stm32g0.c
index 93d7806681cf..ac48b7763114 100644
--- a/drivers/usb/typec/ucsi/ucsi_stm32g0.c
+++ b/drivers/usb/typec/ucsi/ucsi_stm32g0.c
@@ -64,6 +64,7 @@ struct ucsi_stm32g0 {
 	struct completion complete;
 	struct device *dev;
 	unsigned long flags;
+#define COMMAND_PENDING	1
 	const char *fw_name;
 	struct ucsi *ucsi;
 	bool suspended;
-- 
2.40.1