linux-kernel - [PATCH 0/2] ARM: dts: microchip: Add no-1-8-v property to sdmmc0 node

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Message-ID: <20241119160107.598411-1-cristian.birsan@microchip.com>
Date: Tue, 19 Nov 2024 18:01:05 +0200
From: <cristian.birsan@...rochip.com>
To: <robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
	<nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
	<claudiu.beznea@...on.dev>
CC: <devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, Cristian Birsan
	<cristian.birsan@...rochip.com>
Subject: [PATCH 0/2] ARM: dts: microchip: Add no-1-8-v property to sdmmc0 node

From: Cristian Birsan <cristian.birsan@...rochip.com>

Add no-1-8-v property to sdmmc0 node to keep VDDSDMMC power rail at 3.3V.
This property will stop the LDO regulator from switching to 1.8V when the
MMC core detects an UHS SD Card. VDDSDMMC power rail is used by all the
SDMMC interface pins in GPIO mode (PA0 - PA13).

PA6 and PA10 GPIOs are used to enable the power switch controlling USB
Vbus for the USB Host.

Cristian Birsan (2):
  ARM: dts: microchip: sama5d29_curiosity: Add no-1-8-v property to
    sdmmc0 node
  ARM: dts: microchip: sama5d27_wlsom1_ek: Add no-1-8-v property to
    sdmmc0 node

 arch/arm/boot/dts/microchip/at91-sama5d27_wlsom1_ek.dts | 1 +
 arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts | 1 +
 2 files changed, 2 insertions(+)


base-commit: 158f238aa69d91ad74e535c73f552bd4b025109c
-- 
2.34.1