linux-kernel - [PATCH v3 2/7] usb: typec: tcpci_rt1711h: Fix vendor setting when set vconn

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Date:   Mon,  1 Aug 2022 18:14:42 +0800
From:   Gene Chen <gene.chen.richtek@...il.com>
To:     linux@...ck-us.net, heikki.krogerus@...ux.intel.com,
        gregkh@...uxfoundation.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, gene_chen@...htek.com,
        cy_huang@...htek.com
Subject: [PATCH v3 2/7] usb: typec: tcpci_rt1711h: Fix vendor setting when set vconn

From: Gene Chen <gene_chen@...htek.com>

replace overwrite whole register with update bits

Signed-off-by: Gene Chen <gene_chen@...htek.com>
---
 drivers/usb/typec/tcpm/tcpci_rt1711h.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
index b56a0880a044..6197d9a05d36 100644
--- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c
+++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
@@ -5,13 +5,15 @@
  * Richtek RT1711H Type-C Chip Driver
  */
 
-#include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/bits.h>
+#include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
-#include <linux/gpio/consumer.h>
-#include <linux/usb/tcpm.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/regmap.h>
+#include <linux/usb/tcpm.h>
+
 #include "tcpci.h"
 
 #define RT1711H_VID		0x29CF
@@ -23,6 +25,7 @@
 #define RT1711H_RTCTRL8_SET(ck300, ship_off, auto_idle, tout) \
 			    (((ck300) << 7) | ((ship_off) << 5) | \
 			    ((auto_idle) << 3) | ((tout) & 0x07))
+#define RT1711H_AUTOIDLEEN	BIT(3)
 
 #define RT1711H_RTCTRL11	0x9E
 
@@ -109,8 +112,8 @@ static int rt1711h_set_vconn(struct tcpci *tcpci, struct tcpci_data *tdata,
 {
 	struct rt1711h_chip *chip = tdata_to_rt1711h(tdata);
 
-	return rt1711h_write8(chip, RT1711H_RTCTRL8,
-			      RT1711H_RTCTRL8_SET(0, 1, !enable, 2));
+	return regmap_update_bits(chip->data.regmap, RT1711H_RTCTRL8,
+				  RT1711H_AUTOIDLEEN, enable ? 0 : RT1711H_AUTOIDLEEN);
 }
 
 static int rt1711h_start_drp_toggling(struct tcpci *tcpci,
-- 
2.25.1