linux-kernel - [PATCH v3 1/3] dt-bindings: regulator: Add MAX77675 binding header

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Message-Id: <20251014053142.15835-2-joan.na@analog.com>
Date: Tue, 14 Oct 2025 14:31:40 +0900
From: Joan-Na-adi <joan.na.devcode@...il.com>
To: Liam Girdwood <lgirdwood@...il.com>
Cc: Mark Brown <broonie@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	Joan Na <joan.na@...log.com>
Subject: [PATCH v3 1/3] dt-bindings: regulator: Add MAX77675 binding header

From: Joan Na <joan.na@...log.com>

Add binding header for the MAX77675 PMIC regulator. This header defines
voltage ID and regulator index macros used both in device tree sources
and in the driver implementation.

Fixes:
- Removed unused macros
- Renamed macros for clarity

Signed-off-by: Joan Na <joan.na@...log.com>
---
 .../regulator/maxim,max77675-regulator.h      | 52 +++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 include/dt-bindings/regulator/maxim,max77675-regulator.h

diff --git a/include/dt-bindings/regulator/maxim,max77675-regulator.h b/include/dt-bindings/regulator/maxim,max77675-regulator.h
new file mode 100644
index 000000000000..b3b52d1668c2
--- /dev/null
+++ b/include/dt-bindings/regulator/maxim,max77675-regulator.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD 2-Clause */
+/*
+ * This header provides macros for MAXIM MAX77675 device bindings.
+ *
+ * Copyright (c) 2025, Analog Device inc.
+ * Author: Joan Na <joan.na@...log.com>
+ */
+
+#ifndef _DT_BINDINGS_REGULATOR_MAX77675_
+#define _DT_BINDINGS_REGULATOR_MAX77675_
+
+/* FPS source */
+#define MAX77675_FPS_SLOT_0       0x0
+#define MAX77675_FPS_SLOT_1       0x1
+#define MAX77675_FPS_SLOT_2       0x2
+#define MAX77675_FPS_SLOT_3       0x3
+#define MAX77675_FPS_DEF          0x4
+
+/* nEN Manual Reset Time Configuration (MRT) */
+#define MAX77675_MRT_4S           0x0
+#define MAX77675_MRT_8S           0x1
+#define MAX77675_MRT_12S          0x2
+#define MAX77675_MRT_16S          0x3
+
+/* nEN Mode Configuration */
+#define MAX77675_EN_PUSH_BUTTON   0x0
+#define MAX77675_EN_SLIDE_SWITCH  0x1
+#define MAX77675_EN_LOGIC         0x2
+
+/* Debounce Timer Enable (DBEN_nEN) */
+#define MAX77675_DBEN_100US       0x0
+#define MAX77675_DBEN_30000US     0x1
+
+/* Rising slew rate control for SBB0 when ramping up */
+#define MAX77675_SR_2MV_PER_US    0x0  // 2 mV/us
+#define MAX77675_SR_USE_DVS       0x1  // Use DVS slew rate setting (maxim,dvs-slew-rate)
+
+/* Dynamic Voltage Scaling (DVS) Slew Rate */
+#define MAX77675_DVS_SLEW_5MV_PER_US    0x0  // 5 mV/us
+#define MAX77675_DVS_SLEW_10MV_PER_US   0x1  // 10 mV/us
+
+/* Latency Mode */
+#define MAX77675_HIGH_LATENCY_MODE  0x0   // High latency, low quiescent current (~100us)
+#define MAX77675_LOW_LATENCY_MODE   0x1   // Low latency, high quiescent current (~10us)
+
+/* SIMO Buck-Boost Drive Strength (All Channels) */
+#define MAX77675_DRV_SBB_STRENGTH_MAX  0x0  // Maximum drive strength (~0.6 ns transition time)
+#define MAX77675_DRV_SBB_STRENGTH_HIGH 0x1  // High drive strength (~1.2 ns transition time)
+#define MAX77675_DRV_SBB_STRENGTH_LOW  0x2  // Low drive strength (~1.8 ns transition time)
+#define MAX77675_DRV_SBB_STRENGTH_MIN  0x3  // Minimum drive strength (~8 ns transition time)
+
+#endif
--
2.34.1