linux-kernel - [PATCH 05/15] usb: typec: tcpci: use GENMASK() for TCPC_ROLE_CTRL_RP

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Message-Id: <20240710-tcpc-cleanup-v1-5-0ec1f41f4263@linaro.org>
Date: Wed, 10 Jul 2024 11:36:12 +0100
From: André Draszik <andre.draszik@...aro.org>
To: Heikki Krogerus <heikki.krogerus@...ux.intel.com>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Peter Griffin <peter.griffin@...aro.org>, 
 Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Will McVicker <willmcvicker@...gle.com>, 
 Badhri Jagan Sridharan <badhri@...gle.com>, kernel-team@...roid.com, 
 linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org, 
 André Draszik <andre.draszik@...aro.org>
Subject: [PATCH 05/15] usb: typec: tcpci: use GENMASK() for
 TCPC_ROLE_CTRL_RP_VAL

Align the last remaining field TCPC_ROLE_CTRL_RP_VAL with the other
fields in the TCPC_ROLE_CTRL register by using GENMASK() and
FIELD_PREP().

Signed-off-by: André Draszik <andre.draszik@...aro.org>
---
 drivers/usb/typec/tcpm/tcpci.c         | 21 ++++++++++++---------
 drivers/usb/typec/tcpm/tcpci_rt1711h.c | 12 ++++++------
 include/linux/usb/tcpci.h              |  3 +--
 3 files changed, 19 insertions(+), 17 deletions(-)

diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c
index cd71ece7b956..5ad05a5bbbd1 100644
--- a/drivers/usb/typec/tcpm/tcpci.c
+++ b/drivers/usb/typec/tcpm/tcpci.c
@@ -114,17 +114,20 @@ static int tcpci_set_cc(struct tcpc_dev *tcpc, enum typec_cc_status cc)
 	case TYPEC_CC_RP_DEF:
 		reg = (FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RP)
 		       | FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RP)
-		       | (TCPC_ROLE_CTRL_RP_VAL_DEF << TCPC_ROLE_CTRL_RP_VAL_SHIFT));
+		       | FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL,
+				    TCPC_ROLE_CTRL_RP_VAL_DEF));
 		break;
 	case TYPEC_CC_RP_1_5:
 		reg = (FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RP)
 		       | FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RP)
-		       | (TCPC_ROLE_CTRL_RP_VAL_1_5 << TCPC_ROLE_CTRL_RP_VAL_SHIFT));
+		       | FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL,
+				    TCPC_ROLE_CTRL_RP_VAL_1_5));
 		break;
 	case TYPEC_CC_RP_3_0:
 		reg = (FIELD_PREP(TCPC_ROLE_CTRL_CC1, TCPC_ROLE_CTRL_CC_RP)
 		       | FIELD_PREP(TCPC_ROLE_CTRL_CC2, TCPC_ROLE_CTRL_CC_RP)
-		       | (TCPC_ROLE_CTRL_RP_VAL_3_0 << TCPC_ROLE_CTRL_RP_VAL_SHIFT));
+		       | FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL,
+				    TCPC_ROLE_CTRL_RP_VAL_3_0));
 		break;
 	case TYPEC_CC_OPEN:
 	default:
@@ -194,16 +197,16 @@ static int tcpci_start_toggling(struct tcpc_dev *tcpc,
 	switch (cc) {
 	default:
 	case TYPEC_CC_RP_DEF:
-		reg |= (TCPC_ROLE_CTRL_RP_VAL_DEF <<
-			TCPC_ROLE_CTRL_RP_VAL_SHIFT);
+		reg |= FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL,
+				  TCPC_ROLE_CTRL_RP_VAL_DEF);
 		break;
 	case TYPEC_CC_RP_1_5:
-		reg |= (TCPC_ROLE_CTRL_RP_VAL_1_5 <<
-			TCPC_ROLE_CTRL_RP_VAL_SHIFT);
+		reg |= FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL,
+				  TCPC_ROLE_CTRL_RP_VAL_1_5);
 		break;
 	case TYPEC_CC_RP_3_0:
-		reg |= (TCPC_ROLE_CTRL_RP_VAL_3_0 <<
-			TCPC_ROLE_CTRL_RP_VAL_SHIFT);
+		reg |= FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL,
+				  TCPC_ROLE_CTRL_RP_VAL_3_0);
 		break;
 	}
 
diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
index bdb78d08b5b5..64f6dd0dc660 100644
--- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c
+++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
@@ -232,16 +232,16 @@ static int rt1711h_start_drp_toggling(struct tcpci *tcpci,
 	switch (cc) {
 	default:
 	case TYPEC_CC_RP_DEF:
-		reg |= (TCPC_ROLE_CTRL_RP_VAL_DEF <<
-			TCPC_ROLE_CTRL_RP_VAL_SHIFT);
+		reg |= FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL,
+				  TCPC_ROLE_CTRL_RP_VAL_DEF);
 		break;
 	case TYPEC_CC_RP_1_5:
-		reg |= (TCPC_ROLE_CTRL_RP_VAL_1_5 <<
-			TCPC_ROLE_CTRL_RP_VAL_SHIFT);
+		reg |= FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL,
+				  TCPC_ROLE_CTRL_RP_VAL_1_5);
 		break;
 	case TYPEC_CC_RP_3_0:
-		reg |= (TCPC_ROLE_CTRL_RP_VAL_3_0 <<
-			TCPC_ROLE_CTRL_RP_VAL_SHIFT);
+		reg |= FIELD_PREP(TCPC_ROLE_CTRL_RP_VAL,
+				  TCPC_ROLE_CTRL_RP_VAL_3_0);
 		break;
 	}
 
diff --git a/include/linux/usb/tcpci.h b/include/linux/usb/tcpci.h
index 552d074429f0..80652d4f722e 100644
--- a/include/linux/usb/tcpci.h
+++ b/include/linux/usb/tcpci.h
@@ -63,8 +63,7 @@
 
 #define TCPC_ROLE_CTRL			0x1a
 #define TCPC_ROLE_CTRL_DRP		BIT(6)
-#define TCPC_ROLE_CTRL_RP_VAL_SHIFT	4
-#define TCPC_ROLE_CTRL_RP_VAL_MASK	0x3
+#define TCPC_ROLE_CTRL_RP_VAL		GENMASK(5, 4)
 #define TCPC_ROLE_CTRL_RP_VAL_DEF	0x0
 #define TCPC_ROLE_CTRL_RP_VAL_1_5	0x1
 #define TCPC_ROLE_CTRL_RP_VAL_3_0	0x2

-- 
2.45.2.803.g4e1b14247a-goog