linux-kernel - [PATCH 1/3] regulator: pf9453: change the device ID register address

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Message-Id: <20251103-b4-next-pf9453-v1-1-a025d536eee1@nxp.com>
Date: Mon, 03 Nov 2025 11:26:47 +0800
From: Joy Zou <joy.zou@....com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Frank Li <Frank.Li@....com>
Cc: linux-kernel@...r.kernel.org, imx@...ts.linux.dev, 
 Joy Zou <joy.zou@....com>
Subject: [PATCH 1/3] regulator: pf9453: change the device ID register
 address

Remove unnecessary register OTP_Ver and change the device ID address to
0x1. Previous version chip is never mass production. So not broken
compatibility.

Signed-off-by: Joy Zou <joy.zou@....com>
---
 drivers/regulator/pf9453-regulator.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/regulator/pf9453-regulator.c b/drivers/regulator/pf9453-regulator.c
index be627f49b61762bb2b3a1830c14ae3a7255034e2..d522715a7c74908b39880ce9f0bfc252a4dd4ba2 100644
--- a/drivers/regulator/pf9453-regulator.c
+++ b/drivers/regulator/pf9453-regulator.c
@@ -65,8 +65,7 @@ enum {
 #define PF9453_LDOSNVS_VOLTAGE_NUM	0x59
 
 enum {
-	PF9453_REG_DEV_ID		= 0x00,
-	PF9453_REG_OTP_VER		= 0x01,
+	PF9453_REG_DEV_ID		= 0x01,
 	PF9453_REG_INT1			= 0x02,
 	PF9453_REG_INT1_MASK		= 0x03,
 	PF9453_REG_INT1_STATUS		= 0x04,

-- 
2.37.1