linux-kernel - [PATCH v4 2/7] usb: typec: tcpci_rt1711h: Fix vendor setting when set vconn

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20220805071714.150882-3-gene.chen.richtek@gmail.com>
Date:   Fri,  5 Aug 2022 15:17:08 +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 v4 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 | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/tcpm/tcpci_rt1711h.c b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
index 3291ca4..f2f1fb0 100644
--- a/drivers/usb/typec/tcpm/tcpci_rt1711h.c
+++ b/drivers/usb/typec/tcpm/tcpci_rt1711h.c
@@ -5,6 +5,7 @@
  * Richtek RT1711H Type-C Chip Driver
  */
 
+#include <linux/bits.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/i2c.h>
@@ -23,6 +24,7 @@
 #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 +111,8 @@ 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,
-- 
2.7.4