linux-kernel - [PATCH 13/15] usb: typec: tcpm/tcpci_maxim: use GENMASK() for TCPC_VENDOR_ADC

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Message-Id: <20240710-tcpc-cleanup-v1-13-0ec1f41f4263@linaro.org>
Date: Wed, 10 Jul 2024 11:36:20 +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 13/15] usb: typec: tcpm/tcpci_maxim: use GENMASK() for
 TCPC_VENDOR_ADC_CTRL1 register

Convert register TCPC_VENDOR_ADC_CTRL1 to using GENMASK() and
FIELD_PREP() so as to keep using a similar approach throughout the code
base and make it arguably easier to read.

Signed-off-by: André Draszik <andre.draszik@...aro.org>
---
 drivers/usb/typec/tcpm/maxim_contaminant.c | 7 ++++---
 drivers/usb/typec/tcpm/tcpci_maxim.h       | 3 +--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/typec/tcpm/maxim_contaminant.c b/drivers/usb/typec/tcpm/maxim_contaminant.c
index cf9887de96c9..7bfec45e8f4f 100644
--- a/drivers/usb/typec/tcpm/maxim_contaminant.c
+++ b/drivers/usb/typec/tcpm/maxim_contaminant.c
@@ -76,8 +76,8 @@ static int max_contaminant_read_adc_mv(struct max_tcpci_chip *chip, enum fladc_s
 	int ret;
 
 	/* Channel & scale select */
-	ret = regmap_update_bits(regmap, TCPC_VENDOR_ADC_CTRL1, ADCINSEL_MASK,
-				 channel << ADC_CHANNEL_OFFSET);
+	ret = regmap_update_bits(regmap, TCPC_VENDOR_ADC_CTRL1, ADCINSEL,
+				 FIELD_PREP(ADCINSEL, channel));
 	if (ret < 0)
 		return ret;
 
@@ -96,7 +96,8 @@ static int max_contaminant_read_adc_mv(struct max_tcpci_chip *chip, enum fladc_s
 	if (ret < 0)
 		return ret;
 
-	ret = regmap_update_bits(regmap, TCPC_VENDOR_ADC_CTRL1, ADCINSEL_MASK, 0);
+	ret = regmap_update_bits(regmap, TCPC_VENDOR_ADC_CTRL1, ADCINSEL,
+				 FIELD_PREP(ADCINSEL, 0));
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/usb/typec/tcpm/tcpci_maxim.h b/drivers/usb/typec/tcpm/tcpci_maxim.h
index 34076069444f..a41ca9e7ad08 100644
--- a/drivers/usb/typec/tcpm/tcpci_maxim.h
+++ b/drivers/usb/typec/tcpm/tcpci_maxim.h
@@ -37,8 +37,7 @@
 #define WTRCYCLE_4_8_S                          1
 
 #define TCPC_VENDOR_ADC_CTRL1                   0x91
-#define ADCINSEL_MASK                           GENMASK(7, 5)
-#define ADC_CHANNEL_OFFSET                      5
+#define ADCINSEL                                GENMASK(7, 5)
 #define ADCEN                                   BIT(0)
 
 enum contamiant_state {

-- 
2.45.2.803.g4e1b14247a-goog