[PATCH v6 0/4] Remove unused bits from dts and add support for remaining pinctrl macros

[PATCH v6 0/4] Remove unused bits from dts and add support for remaining pinctrl macros

[Akashdeep Kaur]

This patch series cleans up the dts files to remove the pin control 
DeepSleep configuration that does not take effect in hardware.
This series also adds the remaining macros in the pin control file 
supported by SoC so that any configuration can be used as per requirement 
in dts files.

Link to Previous Versions:
  -V1: https://lore.kernel.org/linux-arm-kernel/20250731115631.3263798-1-a-kaur@ti.com/
  -V2: https://lore.kernel.org/linux-arm-kernel/20250901122835.3022850-1-a-kaur@ti.com/
  -V3: https://lore.kernel.org/linux-arm-kernel/20250902071917.1616729-1-a-kaur@ti.com/
  -V4: https://lore.kernel.org/linux-arm-kernel/20250904112538.529857-1-a-kaur@ti.com/
  -V5: https://lore.kernel.org/linux-arm-kernel/20250905051448.2836237-1-a-kaur@ti.com/

Change Log:
V1-> V2:
  -Added the macros that were removed earlier for backward compatibility
  -Fixed the indentation 
  -Added documentation references in commit message

V2-> V3:
  -Updated the commit message to be more descriptive and Clear
  -Fixed errors introduced in previous version

V3-> V4:
  -Rearranged pinctrl macros so that all macros of same type are at same place 
  -Removed any redundant macros added in previous versions of the series
  -Added new commit to fix the missing existing macro definition

V4-> V5:
  -Updated documentation reference in commit message

V5-> V6:
  -Updated commit message to add "Fixes" tag and update reference information
  

Akashdeep Kaur (4):
  arm64: dts: ti: k3-am62p5-sk: Remove the unused cfg in USB1_DRVVBUS
  arm64: dts: ti: k3-am62x-sk-common: Remove the unused cfg in
    USB1_DRVVBUS
  arm64: dts: ti: k3-pinctrl: Add the remaining macros
  arm64: dts: ti: k3-pinctrl: Fix the bug in existing macros

 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts       |  2 +-
 .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi |  2 +-
 arch/arm64/boot/dts/ti/k3-pinctrl.h           | 51 +++++++++++++++++--
 3 files changed, 50 insertions(+), 5 deletions(-)

-- 
2.34.1

[PATCH v6 1/4] arm64: dts: ti: k3-am62p5-sk: Remove the unused cfg in USB1_DRVVBUS

[Akashdeep Kaur]

After the SoC has entered the DeepSleep low power mode, USB1 can be used
to wakeup the SoC based on USB events triggered by USB devices. This
requires that the pin corresponding to the Type-A connector remains pulled
up even after the SoC has entered the DeepSleep low power mode.
For that, either DeepSleep pullup configuration can be selected or the pin
can have the same configuration that it had when SoC was in active mode.
Remove the unnecessary DeepSleep state configuration from USB1_DRVBUS pin,
as the DeepSleep control bit is not set and the active configuration is
sufficient to keep the pin pulled up. This simplifies the setup and removes
redundant configuration.

This reverts commit 115290c112952db27009668aa7ae2f29920704f0.

Tested-by: Kendall Willis <k-willis@ti.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Akashdeep Kaur <a-kaur@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index 899da7896563..e8f0ac2c55e2 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -360,7 +360,7 @@ AM62PX_IOPAD(0x01b0, PIN_OUTPUT, 2) /* (G20) MCASP0_ACLKR.UART1_TXD */
 
 	main_usb1_pins_default: main-usb1-default-pins {
 		pinctrl-single,pins = <
-			AM62PX_IOPAD(0x0258, PIN_INPUT | PIN_DS_PULLUD_ENABLE | PIN_DS_PULL_UP, 0) /* (G21) USB1_DRVVBUS */
+			AM62PX_IOPAD(0x0258, PIN_INPUT, 0) /* (G21) USB1_DRVVBUS */
 		>;
 	};
 
-- 
2.34.1

Re: [PATCH v6 1/4] arm64: dts: ti: k3-am62p5-sk: Remove the unused cfg in USB1_DRVVBUS

[s-vadapalli]

On Tue, Sep 09, 2025 at 10:11:05AM +0530, Akashdeep Kaur wrote:
> After the SoC has entered the DeepSleep low power mode, USB1 can be used
> to wakeup the SoC based on USB events triggered by USB devices. This
> requires that the pin corresponding to the Type-A connector remains pulled
> up even after the SoC has entered the DeepSleep low power mode.
> For that, either DeepSleep pullup configuration can be selected or the pin
> can have the same configuration that it had when SoC was in active mode.
> Remove the unnecessary DeepSleep state configuration from USB1_DRVBUS pin,
> as the DeepSleep control bit is not set and the active configuration is
> sufficient to keep the pin pulled up. This simplifies the setup and removes
> redundant configuration.
> 
> This reverts commit 115290c112952db27009668aa7ae2f29920704f0.
> 
> Tested-by: Kendall Willis <k-willis@ti.com>
> Reviewed-by: Dhruva Gole <d-gole@ti.com>
> Signed-off-by: Akashdeep Kaur <a-kaur@ti.com>

Acked-by: Siddharth Vadapalli <s-vadapalli@ti.com>

Regards,
Siddharth.

[PATCH v6 2/4] arm64: dts: ti: k3-am62x-sk-common: Remove the unused cfg in USB1_DRVVBUS

[Akashdeep Kaur]

After the SoC has entered the DeepSleep low power mode, USB1 can be
used to wakeup the SoC based on USB events triggered by USB devices.
This requires that the pin corresponding to the Type-A connector
remains pulled up even after the SoC has entered the DeepSleep low power
mode.
For that, either DeepSleep pullup configuration can be selected or the pin
can have the same configuration that it had when SoC was in active mode.
Remove the unnecessary DeepSleep state configuration from USB1_DRVBUS pin,
as the DeepSleep control bit is not set and the active configuration is
sufficient to keep the pin pulled up. This simplifies the setup and removes
redundant configuration.

This reverts commit 527f884d2d94981016e181dcbd4c4b5bf597c0ad.

Tested-by: Kendall Willis <k-willis@ti.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Akashdeep Kaur <a-kaur@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
index 13e1d36123d5..d3bed23134ca 100644
--- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi
@@ -249,7 +249,7 @@ AM62X_IOPAD(0x12c, PIN_OUTPUT, 0) /* (AD19/V15) RGMII1_TX_CTL */
 
 	main_usb1_pins_default: main-usb1-default-pins {
 		pinctrl-single,pins = <
-			AM62X_IOPAD(0x0258, PIN_OUTPUT | PIN_DS_PULLUD_ENABLE | PIN_DS_PULL_UP, 0) /* (F18/E16) USB1_DRVVBUS */
+			AM62X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (F18/E16) USB1_DRVVBUS */
 		>;
 	};
 
-- 
2.34.1

Re: [PATCH v6 2/4] arm64: dts: ti: k3-am62x-sk-common: Remove the unused cfg in USB1_DRVVBUS

[s-vadapalli]

On Tue, Sep 09, 2025 at 10:11:06AM +0530, Akashdeep Kaur wrote:
> After the SoC has entered the DeepSleep low power mode, USB1 can be
> used to wakeup the SoC based on USB events triggered by USB devices.
> This requires that the pin corresponding to the Type-A connector
> remains pulled up even after the SoC has entered the DeepSleep low power
> mode.
> For that, either DeepSleep pullup configuration can be selected or the pin
> can have the same configuration that it had when SoC was in active mode.
> Remove the unnecessary DeepSleep state configuration from USB1_DRVBUS pin,
> as the DeepSleep control bit is not set and the active configuration is
> sufficient to keep the pin pulled up. This simplifies the setup and removes
> redundant configuration.
> 
> This reverts commit 527f884d2d94981016e181dcbd4c4b5bf597c0ad.
> 
> Tested-by: Kendall Willis <k-willis@ti.com>
> Reviewed-by: Dhruva Gole <d-gole@ti.com>
> Signed-off-by: Akashdeep Kaur <a-kaur@ti.com>

Acked-by: Siddharth Vadapalli <s-vadapalli@ti.com>

Regards,
Siddharth.

[PATCH v6 3/4] arm64: dts: ti: k3-pinctrl: Add the remaining macros

[Akashdeep Kaur]

Add the drive strength, schmitt trigger enable macros to pinctrl file.
Add the missing macros for DeepSleep configuration control referenced
from "Table 14-8769. Description Of The Pad Configuration Register Bits"
in AM62Px 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/pdf/SPRUJ83

Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Akashdeep Kaur <a-kaur@ti.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..8ce37ace94c9 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_DISABLE        (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

[PATCH v6 4/4] arm64: dts: ti: k3-pinctrl: Fix the bug in existing macros

[Akashdeep Kaur]

Currently, DS_IO_OVERRIDE_EN_SHIFT macro is not defined anywhere but
used for defining other macro.
Replace this undefined macro with valid macro. Rename the existing macro
to reflect the actual behavior.

Fixes: 325aa0f6b36e ("arm64: dts: ti: k3-pinctrl: Introduce deep sleep macros")

Reviewed-by: Kendall Willis <k-willis@ti.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Akashdeep Kaur <a-kaur@ti.com>
---
 arch/arm64/boot/dts/ti/k3-pinctrl.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-pinctrl.h b/arch/arm64/boot/dts/ti/k3-pinctrl.h
index 8ce37ace94c9..e46f7bf52701 100644
--- a/arch/arm64/boot/dts/ti/k3-pinctrl.h
+++ b/arch/arm64/boot/dts/ti/k3-pinctrl.h
@@ -88,8 +88,8 @@
 
 #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)
-#define PIN_DS_IO_OVERRIDE_ENABLE	(1 << DS_IO_OVERRIDE_EN_SHIFT)
+#define PIN_DS_ISO_OVERRIDE_DISABLE     (0 << ISO_OVERRIDE_EN_SHIFT)
+#define PIN_DS_ISO_OVERRIDE_ENABLE      (1 << ISO_OVERRIDE_EN_SHIFT)
 #define PIN_DS_OUT_ENABLE		(0 << DS_OUT_DIS_SHIFT)
 #define PIN_DS_OUT_DISABLE		(1 << DS_OUT_DIS_SHIFT)
 #define PIN_DS_OUT_VALUE_ZERO		(0 << DS_OUT_VAL_SHIFT)
-- 
2.34.1

Re: [PATCH v6 0/4] Remove unused bits from dts and add support for remaining pinctrl macros

[Kendall Willis]

On 9/8/25 23:41, Akashdeep Kaur wrote:
> This patch series cleans up the dts files to remove the pin control
> DeepSleep configuration that does not take effect in hardware.
> This series also adds the remaining macros in the pin control file
> supported by SoC so that any configuration can be used as per requirement
> in dts files.
> 
> Link to Previous Versions:
>    -V1: https://lore.kernel.org/linux-arm-kernel/20250731115631.3263798-1-a-kaur@ti.com/
>    -V2: https://lore.kernel.org/linux-arm-kernel/20250901122835.3022850-1-a-kaur@ti.com/
>    -V3: https://lore.kernel.org/linux-arm-kernel/20250902071917.1616729-1-a-kaur@ti.com/
>    -V4: https://lore.kernel.org/linux-arm-kernel/20250904112538.529857-1-a-kaur@ti.com/
>    -V5: https://lore.kernel.org/linux-arm-kernel/20250905051448.2836237-1-a-kaur@ti.com/
> 
> Change Log:
> V1-> V2:
>    -Added the macros that were removed earlier for backward compatibility
>    -Fixed the indentation
>    -Added documentation references in commit message
> 
> V2-> V3:
>    -Updated the commit message to be more descriptive and Clear
>    -Fixed errors introduced in previous version
> 
> V3-> V4:
>    -Rearranged pinctrl macros so that all macros of same type are at same place
>    -Removed any redundant macros added in previous versions of the series
>    -Added new commit to fix the missing existing macro definition
> 
> V4-> V5:
>    -Updated documentation reference in commit message
> 
> V5-> V6:
>    -Updated commit message to add "Fixes" tag and update reference information
>    
> 
> Akashdeep Kaur (4):
>    arm64: dts: ti: k3-am62p5-sk: Remove the unused cfg in USB1_DRVVBUS
>    arm64: dts: ti: k3-am62x-sk-common: Remove the unused cfg in
>      USB1_DRVVBUS
>    arm64: dts: ti: k3-pinctrl: Add the remaining macros
>    arm64: dts: ti: k3-pinctrl: Fix the bug in existing macros
> 
>   arch/arm64/boot/dts/ti/k3-am62p5-sk.dts       |  2 +-
>   .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi |  2 +-
>   arch/arm64/boot/dts/ti/k3-pinctrl.h           | 51 +++++++++++++++++--
>   3 files changed, 50 insertions(+), 5 deletions(-)
> 

For series,

Reviewed-by: Kendall Willis <k-willis@ti.com>

Re: [PATCH v6 0/4] Remove unused bits from dts and add support for remaining pinctrl macros

[Nishanth Menon]

Hi Akashdeep Kaur,

On Tue, 09 Sep 2025 10:11:04 +0530, Akashdeep Kaur wrote:
> This patch series cleans up the dts files to remove the pin control
> DeepSleep configuration that does not take effect in hardware.
> This series also adds the remaining macros in the pin control file
> supported by SoC so that any configuration can be used as per requirement
> in dts files.
> 
> Link to Previous Versions:
>   -V1: https://lore.kernel.org/linux-arm-kernel/20250731115631.3263798-1-a-kaur@ti.com/
>   -V2: https://lore.kernel.org/linux-arm-kernel/20250901122835.3022850-1-a-kaur@ti.com/
>   -V3: https://lore.kernel.org/linux-arm-kernel/20250902071917.1616729-1-a-kaur@ti.com/
>   -V4: https://lore.kernel.org/linux-arm-kernel/20250904112538.529857-1-a-kaur@ti.com/
>   -V5: https://lore.kernel.org/linux-arm-kernel/20250905051448.2836237-1-a-kaur@ti.com/
> 
> [...]

I have applied the following to branch ti-k3-dts-next on [1].
Thank you!

[1/4] arm64: dts: ti: k3-am62p5-sk: Remove the unused cfg in USB1_DRVVBUS
      commit: fe0e018b05f118cb8e5c8cd77dd74185b2cb7177
[2/4] arm64: dts: ti: k3-am62x-sk-common: Remove the unused cfg in USB1_DRVVBUS
      commit: 121babfed84a0c6d7ebee4486db4fbd9a900d9f5
[3/4] arm64: dts: ti: k3-pinctrl: Add the remaining macros
      commit: 42558822658e0ad249a8f109fd053e3bad4476e9
[4/4] arm64: dts: ti: k3-pinctrl: Fix the bug in existing macros
      commit: 2e79ee4d64e9ba4a3fc90e91dfd715407efab16d

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent up the chain during
the next merge window (or sooner if it is a relevant bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
-- 
Regards,
Nishanth Menon
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