* [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit BUCK2 to 600mV
@ 2025-05-14 9:41 Alexander Stein
2025-05-14 9:41 ` [PATCH 2/2] arm64: dts: freescale: imx93-tqma9352: Remove unneeded GPIO hog Alexander Stein
` (3 more replies)
0 siblings, 4 replies; 6+ messages in thread
From: Alexander Stein @ 2025-05-14 9:41 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam,
Alexander Stein, Peng Fan
Cc: linux, devicetree, imx, linux-arm-kernel, linux-kernel
TQMa9352 is only using LPDDR4X, so the BUCK2 regulator should be fixed
at 600MV.
Fixes: d2858e6bd36c ("arm64: dts: freescale: imx93-tqma9352: Add PMIC node")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
---
arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi b/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
index 2cabdae242273..09385b058664c 100644
--- a/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
/*
- * Copyright (c) 2022 TQ-Systems GmbH <linux@ew.tq-group.com>,
+ * Copyright (c) 2022-2025 TQ-Systems GmbH <linux@ew.tq-group.com>,
* D-82229 Seefeld, Germany.
* Author: Markus Niebel
*/
@@ -110,11 +110,11 @@ buck1: BUCK1 {
regulator-ramp-delay = <3125>;
};
- /* V_DDRQ - 1.1 LPDDR4 or 0.6 LPDDR4X */
+ /* V_DDRQ - 0.6 V for LPDDR4X */
buck2: BUCK2 {
regulator-name = "BUCK2";
regulator-min-microvolt = <600000>;
- regulator-max-microvolt = <1100000>;
+ regulator-max-microvolt = <600000>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <3125>;
--
2.43.0
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH 2/2] arm64: dts: freescale: imx93-tqma9352: Remove unneeded GPIO hog
2025-05-14 9:41 [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit BUCK2 to 600mV Alexander Stein
@ 2025-05-14 9:41 ` Alexander Stein
2025-05-19 13:05 ` Peng Fan
2025-05-19 12:59 ` [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit BUCK2 to 600mV Peng Fan
` (2 subsequent siblings)
3 siblings, 1 reply; 6+ messages in thread
From: Alexander Stein @ 2025-05-14 9:41 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam,
Alexander Stein, Peng Fan
Cc: linux, devicetree, imx, linux-arm-kernel, linux-kernel
Starting with commit e6ef4f8ede09f ("gpio: vf610: make irq_chip immutable")
gpio-vf610 supports locking GPIO being used for IRQ. This already prevents
configuring the GPIO as output, so there is no need for a GPIO hog.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
---
arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi | 9 ---------
1 file changed, 9 deletions(-)
diff --git a/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi b/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
index 09385b058664c..c2e9c126bd261 100644
--- a/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93-tqma9352.dtsi
@@ -70,15 +70,6 @@ partitions {
};
};
-&gpio1 {
- pmic-irq-hog {
- gpio-hog;
- gpios = <3 GPIO_ACTIVE_LOW>;
- input;
- line-name = "PMIC_IRQ#";
- };
-};
-
&lpi2c1 {
clock-frequency = <400000>;
pinctrl-names = "default", "sleep";
--
2.43.0
^ permalink raw reply related [flat|nested] 6+ messages in thread* RE: [PATCH 2/2] arm64: dts: freescale: imx93-tqma9352: Remove unneeded GPIO hog
2025-05-14 9:41 ` [PATCH 2/2] arm64: dts: freescale: imx93-tqma9352: Remove unneeded GPIO hog Alexander Stein
@ 2025-05-19 13:05 ` Peng Fan
0 siblings, 0 replies; 6+ messages in thread
From: Peng Fan @ 2025-05-19 13:05 UTC (permalink / raw)
To: Alexander Stein, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Shawn Guo, Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam
Cc: linux@ew.tq-group.com, devicetree@vger.kernel.org,
imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
> Subject: [PATCH 2/2] arm64: dts: freescale: imx93-tqma9352: Remove
> unneeded GPIO hog
>
> Starting with commit e6ef4f8ede09f ("gpio: vf610: make irq_chip
> immutable")
> gpio-vf610 supports locking GPIO being used for IRQ. This already
> prevents configuring the GPIO as output, so there is no need for a GPIO
> hog.
>
> Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit BUCK2 to 600mV
2025-05-14 9:41 [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit BUCK2 to 600mV Alexander Stein
2025-05-14 9:41 ` [PATCH 2/2] arm64: dts: freescale: imx93-tqma9352: Remove unneeded GPIO hog Alexander Stein
@ 2025-05-19 12:59 ` Peng Fan
2025-05-19 13:05 ` Peng Fan
2025-06-13 1:52 ` Shawn Guo
3 siblings, 0 replies; 6+ messages in thread
From: Peng Fan @ 2025-05-19 12:59 UTC (permalink / raw)
To: Alexander Stein, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Shawn Guo, Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam
Cc: linux@ew.tq-group.com, devicetree@vger.kernel.org,
imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
> Subject: [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit
> BUCK2 to 600mV
>
> TQMa9352 is only using LPDDR4X, so the BUCK2 regulator should be
> fixed at 600MV.
>
> Fixes: d2858e6bd36c ("arm64: dts: freescale: imx93-tqma9352: Add
> PMIC node")
> Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
^ permalink raw reply [flat|nested] 6+ messages in thread* RE: [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit BUCK2 to 600mV
2025-05-14 9:41 [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit BUCK2 to 600mV Alexander Stein
2025-05-14 9:41 ` [PATCH 2/2] arm64: dts: freescale: imx93-tqma9352: Remove unneeded GPIO hog Alexander Stein
2025-05-19 12:59 ` [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit BUCK2 to 600mV Peng Fan
@ 2025-05-19 13:05 ` Peng Fan
2025-06-13 1:52 ` Shawn Guo
3 siblings, 0 replies; 6+ messages in thread
From: Peng Fan @ 2025-05-19 13:05 UTC (permalink / raw)
To: Alexander Stein, Rob Herring, Krzysztof Kozlowski, Conor Dooley,
Shawn Guo, Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam
Cc: linux@ew.tq-group.com, devicetree@vger.kernel.org,
imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
> Subject: [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit
> BUCK2 to 600mV
>
> TQMa9352 is only using LPDDR4X, so the BUCK2 regulator should be
> fixed at 600MV.
>
> Fixes: d2858e6bd36c ("arm64: dts: freescale: imx93-tqma9352: Add
> PMIC node")
> Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit BUCK2 to 600mV
2025-05-14 9:41 [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit BUCK2 to 600mV Alexander Stein
` (2 preceding siblings ...)
2025-05-19 13:05 ` Peng Fan
@ 2025-06-13 1:52 ` Shawn Guo
3 siblings, 0 replies; 6+ messages in thread
From: Shawn Guo @ 2025-06-13 1:52 UTC (permalink / raw)
To: Alexander Stein
Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Pengutronix Kernel Team, Fabio Estevam, Peng Fan,
linux, devicetree, imx, linux-arm-kernel, linux-kernel
On Wed, May 14, 2025 at 11:41:27AM +0200, Alexander Stein wrote:
> TQMa9352 is only using LPDDR4X, so the BUCK2 regulator should be fixed
> at 600MV.
>
> Fixes: d2858e6bd36c ("arm64: dts: freescale: imx93-tqma9352: Add PMIC node")
> Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Applied both, thanks!
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2025-06-13 1:53 UTC | newest]
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2025-05-14 9:41 [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit BUCK2 to 600mV Alexander Stein
2025-05-14 9:41 ` [PATCH 2/2] arm64: dts: freescale: imx93-tqma9352: Remove unneeded GPIO hog Alexander Stein
2025-05-19 13:05 ` Peng Fan
2025-05-19 12:59 ` [PATCH 1/2] arm64: dts: freescale: imx93-tqma9352: Limit BUCK2 to 600mV Peng Fan
2025-05-19 13:05 ` Peng Fan
2025-06-13 1:52 ` Shawn Guo
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