linux-kernel - [PATCH v4 3/4] arm64: dts: ti: k3-pinctrl: Add the remaining macros

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Message-ID: <20250904112538.529857-4-a-kaur@ti.com>
Date: Thu, 4 Sep 2025 16:55:37 +0530
From: Akashdeep Kaur <a-kaur@...com>
To: <praneeth@...com>, <nm@...com>, <afd@...com>, <vigneshr@...com>,
        <d-gole@...com>, <u-kumar1@...com>, <sebin.francis@...com>,
        <kristo@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <vishalm@...com>
Subject: [PATCH v4 3/4] arm64: dts: ti: k3-pinctrl: Add the remaining macros

Add the drive strength, schmitt trigger enable macros to pinctrl file.
Add the missing macros for DeepSleep configuration control referenced
from "Table 14-6172. Description Of The Pad Configuration Register Bits"
in AM625 TRM[0].
Add some DeepSleep macros to provide combinations that can be used
directly in device tree files example PIN_DS_OUTPUT_LOW that
configures pin to be output and also sets its value to 0.

[0] https://www.ti.com/lit/ug/spruiv7b/spruiv7b.pdf

Signed-off-by: Akashdeep Kaur <a-kaur@...com>
---
 arch/arm64/boot/dts/ti/k3-pinctrl.h | 47 ++++++++++++++++++++++++++++-
 1 file changed, 46 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-pinctrl.h b/arch/arm64/boot/dts/ti/k3-pinctrl.h
index c0f09be8d3f9..7c5b5783769c 100644
--- a/arch/arm64/boot/dts/ti/k3-pinctrl.h
+++ b/arch/arm64/boot/dts/ti/k3-pinctrl.h
@@ -3,15 +3,20 @@
  * This header provides constants for pinctrl bindings for TI's K3 SoC
  * family.
  *
- * Copyright (C) 2018-2024 Texas Instruments Incorporated - https://www.ti.com/
+ * Copyright (C) 2018-2025 Texas Instruments Incorporated - https://www.ti.com/
  */
 #ifndef DTS_ARM64_TI_K3_PINCTRL_H
 #define DTS_ARM64_TI_K3_PINCTRL_H
 
+#define WKUP_LVL_EN_SHIFT       (7)
+#define WKUP_LVL_POL_SHIFT      (8)
 #define ST_EN_SHIFT		(14)
 #define PULLUDEN_SHIFT		(16)
 #define PULLTYPESEL_SHIFT	(17)
 #define RXACTIVE_SHIFT		(18)
+#define DRV_STR_SHIFT           (19)
+#define ISO_OVERRIDE_EN_SHIFT   (22)
+#define ISO_BYPASS_EN_SHIFT     (23)
 #define DEBOUNCE_SHIFT		(11)
 #define FORCE_DS_EN_SHIFT	(15)
 #define DS_EN_SHIFT		(24)
@@ -19,6 +24,7 @@
 #define DS_OUT_VAL_SHIFT	(26)
 #define DS_PULLUD_EN_SHIFT	(27)
 #define DS_PULLTYPE_SEL_SHIFT	(28)
+#define WKUP_EN_SHIFT           (29)
 
 /* Schmitt trigger configuration */
 #define ST_DISABLE		(0 << ST_EN_SHIFT)
@@ -33,6 +39,29 @@
 #define INPUT_EN		(1 << RXACTIVE_SHIFT)
 #define INPUT_DISABLE		(0 << RXACTIVE_SHIFT)
 
+#define DS_PULL_DISABLE         (1 << DS_PULLUD_EN_SHIFT)
+#define DS_PULL_ENABLE          (0 << DS_PULLUD_EN_SHIFT)
+
+#define DS_PULL_UP              (1 << DS_PULLTYPE_SEL_SHIFT | DS_PULL_ENABLE)
+#define DS_PULL_DOWN            (0 << DS_PULLTYPE_SEL_SHIFT | DS_PULL_ENABLE)
+
+#define DS_STATE_EN             (1 << DS_EN_SHIFT)
+#define DS_STATE_DIS            (0 << DS_EN_SHIFT)
+
+#define DS_INPUT_EN             (1 << DS_OUT_DIS_SHIFT | DS_STATE_EN)
+#define DS_INPUT_DISABLE        (0 << DS_OUT_DIS_SHIFT | DS_STATE_EN)
+
+#define DS_OUT_VALUE_ZERO       (0 << DS_OUT_VAL_SHIFT)
+#define DS_OUT_VALUE_ONE        (1 << DS_OUT_VAL_SHIFT)
+
+/* Configuration to enable wake-up on pin activity */
+#define WKUP_ENABLE             (1 << WKUP_EN_SHIFT)
+#define WKUP_DISABLE            (0 << WKUP_EN_SHIFT)
+#define WKUP_ON_LEVEL           (1 << WKUP_LVL_EN_SHIFT)
+#define WKUP_ON_EDGE            (0 << WKUP_LVL_EN_SHIFT)
+#define WKUP_LEVEL_LOW          (0 << WKUP_LVL_POL_SHIFT)
+#define WKUP_LEVEL_HIGH         (1 << WKUP_LVL_POL_SHIFT)
+
 /* Only these macros are expected be used directly in device tree files */
 #define PIN_OUTPUT		(INPUT_DISABLE | PULL_DISABLE)
 #define PIN_OUTPUT_PULLUP	(INPUT_DISABLE | PULL_UP)
@@ -53,6 +82,10 @@
 #define PIN_DEBOUNCE_CONF5	(5 << DEBOUNCE_SHIFT)
 #define PIN_DEBOUNCE_CONF6	(6 << DEBOUNCE_SHIFT)
 
+#define PIN_DRIVE_STRENGTH_NOMINAL      (0 << DRV_STR_SHIFT)
+#define PIN_DRIVE_STRENGTH_SLOW         (1 << DRV_STR_SHIFT)
+#define PIN_DRIVE_STRENGTH_FAST         (2 << DRV_STR_SHIFT)
+
 #define PIN_DS_FORCE_DISABLE		(0 << FORCE_DS_EN_SHIFT)
 #define PIN_DS_FORCE_ENABLE		(1 << FORCE_DS_EN_SHIFT)
 #define PIN_DS_IO_OVERRIDE_DISABLE	(0 << DS_IO_OVERRIDE_EN_SHIFT)
@@ -65,6 +98,18 @@
 #define PIN_DS_PULLUD_DISABLE		(1 << DS_PULLUD_EN_SHIFT)
 #define PIN_DS_PULL_DOWN		(0 << DS_PULLTYPE_SEL_SHIFT)
 #define PIN_DS_PULL_UP			(1 << DS_PULLTYPE_SEL_SHIFT)
+#define PIN_DS_ISO_BYPASS               (1 << ISO_BYPASS_EN_SHIFT)
+#define PIN_DS_ISO_BYPASS_DISABLE       (0 << ISO_BYPASS_EN_SHIFT)
+
+#define PIN_DS_OUTPUT_LOW               (DS_INPUT_DISABLE | DS_OUT_VALUE_ZERO)
+#define PIN_DS_OUTPUT_HIGH              (DS_INPUT_DISABLE | DS_OUT_VALUE_ONE)
+#define PIN_DS_INPUT                    (DS_INPUT_EN | DS_PULL_DISABLE)
+#define PIN_DS_INPUT_PULLUP             (DS_INPUT_EN | DS_PULL_UP)
+#define PIN_DS_INPUT_PULLDOWN           (DS_INPUT_EN | DS_PULL_DOWN)
+
+#define PIN_WKUP_EN_LEVEL_LOW           (WKUP_ENABLE | WKUP_ON_LEVEL | WKUP_LEVEL_LOW)
+#define PIN_WKUP_EN_LEVEL_HIGH          (WKUP_ENABLE | WKUP_ON_LEVEL | WKUP_LEVEL_HIGH)
+#define PIN_WKUP_EN                     (WKUP_ENABLE | WKUP_ON_EDGE)
 
 /* Default mux configuration for gpio-ranges to use with pinctrl */
 #define PIN_GPIO_RANGE_IOPAD	(PIN_INPUT | 7)
-- 
2.34.1