linux-kernel - [PATCH v2 01/11] Revert "regulator: pca9450: Add sd-vsel GPIO"

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241127164337.613915-2-frieder@fris.de>
Date: Wed, 27 Nov 2024 17:42:17 +0100
From: Frieder Schrempf <frieder@...s.de>
To: linux-arm-kernel@...ts.infradead.org,
	Marek Vasut <marex@...x.de>,
	Conor Dooley <conor+dt@...nel.org>,
	devicetree@...r.kernel.org,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	linux-kernel@...r.kernel.org,
	Mark Brown <broonie@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Robin Gong <yibin.gong@....com>
Cc: Frieder Schrempf <frieder.schrempf@...tron.de>,
	Joy Zou <joy.zou@....com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v2 01/11] Revert "regulator: pca9450: Add sd-vsel GPIO"

From: Frieder Schrempf <frieder.schrempf@...tron.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@...tron.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