linux-kernel - Re: [PATCH v2] misc: rtsx: usb card reader: add OCP support

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Message-ID: <2025081206-laxative-droplet-c9aa@gregkh>
Date: Tue, 12 Aug 2025 08:33:27 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Ricky Wu <ricky_wu@...ltek.com>
Cc: linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org, arnd@...db.de,
	chenhuacai@...nel.org, ulf.hansson@...aro.org,
	maximlevitsky@...il.com, kernel test robot <lkp@...el.com>
Subject: Re: [PATCH v2] misc: rtsx: usb card reader: add OCP support

On Tue, Aug 12, 2025 at 11:08:11AM +0800, Ricky Wu wrote:
> This patch adds support for Over Current Protection (OCP) to the Realtek
> USB card reader driver.
> 
> The OCP mechanism protects the hardware by detecting and handling current
> overload conditions.
> This implementation includes:
> 
> - Register configurations to enable OCP monitoring.
> - Handling of OCP interrupt events and associated error reporting.
> - Card power management changes in response to OCP triggers.
> 
> This enhancement improves the robustness of the driver when operating in
> environments where electrical anomalies may occur, particularly with SD
> and MS card interfaces.
> 
> Reported-by: kernel test robot <lkp@...el.com>

the kernel test robot did NOT report that this driver was lacking this
new feature :(