From: Shawn Guo <shawnguo2@yeah.net>
To: Himanshu Bhavani <himanshu.bhavani@siliconsignals.io>
Cc: shawnguo@kernel.org, tarang.raval@siliconsignals.io,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
devicetree@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] arm64: dts: imx8mp-var-som: Fix LDO5 shutdown causing SD card timeout
Date: Fri, 9 May 2025 22:49:19 +0800 [thread overview]
Message-ID: <aB4V76XU9Cyl48pl@dragon> (raw)
In-Reply-To: <20250505055828.4160-1-himanshu.bhavani@siliconsignals.io>
On Mon, May 05, 2025 at 11:28:27AM +0530, Himanshu Bhavani wrote:
> Fix SD card timeout issue caused by LDO5 regulator getting disabled
> after boot.
>
> The kernel log shows LDO5 being disabled, which leads to a timeout
> on USDHC2:
> [ 33.760561] LDO5: disabling
> [ 81.119861] mmc1: Timeout waiting for hardware interrupt.
>
> To prevent this, set regulator-boot-on and regulator-always-on for
> LDO5. Also add the vqmmc regulator to properly support 1.8V/3.3V
> signaling for USDHC2 using a GPIO-controlled regulator.
>
> Fixes: 6c2a1f4f71258 ("arm64: dts: imx8mp-var-som-symphony: Add Variscite Symphony board and VAR-SOM-MX8MP SoM")
> Signed-off-by: Himanshu Bhavani <himanshu.bhavani@siliconsignals.io>
Applied, thanks!
prev parent reply other threads:[~2025-05-09 20:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-05 5:58 [PATCH v2] arm64: dts: imx8mp-var-som: Fix LDO5 shutdown causing SD card timeout Himanshu Bhavani
2025-05-05 6:30 ` Tarang Raval
2025-05-09 14:49 ` Shawn Guo [this message]
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