From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1AD6A11713; Mon, 6 Oct 2025 15:07:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759763251; cv=none; b=fHd4LZ6BRgktljPizqBoXX5grEaE9qbvo6RLpQGsMWtaZTxZzt8t1ZExUhGa9WGBAtWoVw7AGgkzARr1KrcgQsoQHccqxIL3SXh8g6Eyt9CYPeDDnj4Y3j3ZXNVgY2I5IiydSkyBo8ngAz4dQLtIxij4DHNwMNoqJkHSDN/rPxs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759763251; c=relaxed/simple; bh=JRvEheTB2TE+SWSBWDqF6/XEPi6lt1LK1nf4IJ+PL7Q=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uPkiXpgzgmpFMQaqUBAOxwlMqRj1yATmb+POL/V6DZjWOFWwv7g48xRlmKUyawR8v6eKg64+s0cox1/wDUnrn0mUU7T1ePQkeqIU0bUb+aSUlmhFymdpLdK7ibMJFBWokfhjhuOmcbfCeP9WTvV576vyOI28LSul6qREoIrKnXc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RnIomwKK; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="RnIomwKK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0488DC4CEF5; Mon, 6 Oct 2025 15:07:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1759763250; bh=JRvEheTB2TE+SWSBWDqF6/XEPi6lt1LK1nf4IJ+PL7Q=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=RnIomwKKHD1eg4OR/A1VRiEvseOVy/bLYU7S9StzkRlYouF2BPWkcT8FSK5KUMmq2 4+pDWQmadYosK5L9lBfDqGIvNFo253YGT0jkRaMHScOH0r1BTsKWzgbL2mFcG526qX KWIzkuhc4kOlj8xbM6+x8Sd6ZJ+kE1GGc9Wn0/rD9pvGY1u0SN06B45Gn9CWEF2UhZ vx5pAlH8VCq6hmKDqqYgaQRX1dPO0vWaGvwL+UnxQvu689nlCQntuAjUBtJVelyvvq eznbk/53+9sBtJck9zKjCOPHsuYobNnMqT0quWnFv0/06Frm5OXdqdDAbzM/MusrjD j5TvM+EKGCOLg== Date: Mon, 6 Oct 2025 17:07:26 +0200 From: Niklas Cassel To: Markus Probst Cc: Damien Le Moal , "James E.J. Bottomley" , "Martin K. Petersen" , linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/2] Power on ata ports defined in ACPI before probing ports Message-ID: References: <8c3cb28c57462f9665b08fdaa022e6abc57fcd9e.camel@posteo.de> <20251005190559.1472308-1-markus.probst@posteo.de> <20251005190559.1472308-2-markus.probst@posteo.de> Precedence: bulk X-Mailing-List: linux-ide@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251005190559.1472308-2-markus.probst@posteo.de> On Sun, Oct 05, 2025 at 07:06:07PM +0000, Markus Probst wrote: > some devices (for example every synology nas with "deep sleep" support) Some devices? I assume you mean the HBA and not the devices connected to the HBA. > have the ability to power on and off each ata port individually. This > turns the specific port on, if power manageable in acpi, before probing > it. > > This can later be extended to power down the ata ports (removing power > from a disk) while the disk is spin down. Spun down? Overall this commit message needs some serious improvement. I have no idea what Synology NAS with "deep sleep" support is. We don't add support for vendor specific features. Please reference the proper ATA ACS / AHCI / SATA / ACPI specification, including the version of said specification and which section in that specification. Kind regards, Niklas