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From: Frieder Schrempf <frieder@fris.de>
To: linux-arm-kernel@lists.infradead.org, Marek Vasut <marex@denx.de>,
	Conor Dooley <conor+dt@kernel.org>,
	devicetree@vger.kernel.org,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	linux-kernel@vger.kernel.org, Mark Brown <broonie@kernel.org>,
	Rob Herring <robh@kernel.org>, Robin Gong <yibin.gong@nxp.com>
Cc: Frieder Schrempf <frieder.schrempf@kontron.de>,
	Joy Zou <joy.zou@nxp.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Subject: [PATCH v2 01/11] Revert "regulator: pca9450: Add sd-vsel GPIO"
Date: Wed, 27 Nov 2024 17:42:17 +0100	[thread overview]
Message-ID: <20241127164337.613915-2-frieder@fris.de> (raw)
In-Reply-To: <20241127164337.613915-1-frieder@fris.de>

From: Frieder Schrempf <frieder.schrempf@kontron.de>

This reverts commit 27866e3e8a7e93494f8374f48061aa73ee46ceb2.

It turned out that this feature was implemented based on
the wrong assumption that the SD_VSEL signal needs to be
controlled as GPIO in any case.

In fact the straight-forward approach is to mux the signal
as USDHC_VSELECT and let the USDHC controller do the job.

Most users never even used this property and the few who
did have been or are getting migrated to the alternative
approach.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
---
Changes for v2:
* split revert into separate patch
---
 .../devicetree/bindings/regulator/nxp,pca9450-regulator.yaml | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml b/Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml
index f8057bba747a5..79fc0baf5fa2f 100644
--- a/Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml
+++ b/Documentation/devicetree/bindings/regulator/nxp,pca9450-regulator.yaml
@@ -77,11 +77,6 @@ properties:
 
     additionalProperties: false
 
-  sd-vsel-gpios:
-    description: GPIO that is used to switch LDO5 between being configured by
-      LDO5CTRL_L or LDO5CTRL_H register. Use this if the SD_VSEL signal is
-      connected to a host GPIO.
-
   nxp,i2c-lt-enable:
     type: boolean
     description:
-- 
2.46.1


  reply	other threads:[~2024-11-27 16:52 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-27 16:42 [PATCH v2 00/11] Use correct LDO5 control registers for PCA9450 Frieder Schrempf
2024-11-27 16:42 ` Frieder Schrempf [this message]
2024-11-27 16:47   ` [PATCH v2 01/11] Revert "regulator: pca9450: Add sd-vsel GPIO" Mark Brown
2024-11-28 17:37   ` Conor Dooley
2024-12-10 15:59     ` Frieder Schrempf
2024-12-16 19:59       ` Conor Dooley
2024-11-27 16:42 ` [PATCH v2 02/11] dt-bindings: regulator: pca9450: Add sd-vsel-gpios to read back LDO5 status Frieder Schrempf
2024-11-27 16:42 ` [PATCH v2 03/11] dt-bindings: regulator: pca9450: Document nxp,sd-vsel-fixed-low property for LDO5 Frieder Schrempf
2024-11-28 17:33   ` Conor Dooley
2024-12-10 15:36     ` Frieder Schrempf
2024-12-16 19:50       ` Conor Dooley
2024-11-27 16:42 ` [PATCH v2 04/11] arm64: dts: imx8mp-skov-reva: Use hardware signal for SD card VSELECT Frieder Schrempf
2024-11-27 16:42 ` [PATCH v2 09/11] arm64: dts: imx8mm-kontron: Add support for reading SD_VSEL signal Frieder Schrempf
2024-11-27 16:42 ` [PATCH v2 10/11] arm64: dts: imx93-kontron: Fix SD card IO voltage control Frieder Schrempf
2024-11-27 16:42 ` [PATCH v2 11/11] arm64: dts: imx8mp-kontron: Add support for reading SD_VSEL signal Frieder Schrempf

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