From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from relay15.mail.gandi.net (relay15.mail.gandi.net [217.70.178.235]) (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 6E685273D6C for ; Fri, 8 Aug 2025 10:15:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.178.235 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754648139; cv=none; b=FGeUmK4NFOXwqTSgMmxgZLor9UwmakxOvMDNcK+0lNF39R74lhpJGdppbC3i+jlF7qHhiAXAqBEI8b6tXk7E7ebXhnCiZ/potwqVkiI54gVaY6YF2p+Q6uHCTBHuf2INla+qMEvYL1SXSJZJfcqnvcq3R3rQSdKdmx2q9yhcfdM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754648139; c=relaxed/simple; bh=l+/cjitHQaCn5Z2qFtrgnop6PRPmcwaQTWfAxvoFm44=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=cA+ZR8ARS8hmT0+nS9Wt0UQsGnKOff6okmXjkV2K3QQ8L6KpgqGV6DZymcm4QFWnZdu4V3KYLUpwSzZZ8hpzLltYs84zMlBda2mwVH+D/OqgWweS6CMhufRybNhExphjgNK5Q9GYlFUpwVwX//IzDN8Q1BGhnWqDu4ZvZ4nD2Fs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=E0O0eyTL; arc=none smtp.client-ip=217.70.178.235 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="E0O0eyTL" Received: by mail.gandi.net (Postfix) with ESMTPSA id BCE5E43145; Fri, 8 Aug 2025 10:15:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1754648132; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=l+/cjitHQaCn5Z2qFtrgnop6PRPmcwaQTWfAxvoFm44=; b=E0O0eyTL5CSCW9zYLfXjJYG+MrSNMES9PWx+hdfNrHkAk29sheGYLyET1egCdCzjJERF9/ E99actiq6It4TqLFk9JQZr4lmPAZpDQmbwvWj74Ta4k2ATEdB8ozfbblfkU720JNdvSvVo uuctgDRTuCftk4/n0hpcwC+QqCEMv80hwmlTLwlGq/5yXM+4nS6vA0tWIk6Dh+8CJJ7HVO xyefbxaDrI6vqap8R4hffTdyKBKuDgn4INe2qj6GaO/WsAnFYsdcJgMVWmW79bgjgux2Oi o+7lmm1PgUgF3Cd37RPS3OhbctCwTFW4YYEeKfVhude3mfs6YMwrjmPwF9LqOg== From: Miquel Raynal To: Cheng Ming Lin Cc: vigneshr@ti.com, linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, richard@nod.at, alvinzhou@mxic.com.tw, leoyu@mxic.com.tw, Cheng Ming Lin Subject: Re: [PATCH 1/2] mtd: spi-nand: Add support for randomizer In-Reply-To: <20250808095503.906244-2-linchengming884@gmail.com> (Cheng Ming Lin's message of "Fri, 8 Aug 2025 17:55:02 +0800") References: <20250808095503.906244-1-linchengming884@gmail.com> <20250808095503.906244-2-linchengming884@gmail.com> User-Agent: mu4e 1.12.7; emacs 30.1 Date: Fri, 08 Aug 2025 12:15:30 +0200 Message-ID: <878qjuazlp.fsf@bootlin.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-GND-State: clean X-GND-Score: -100 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtdefgdduvdefheegucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuifetpfffkfdpucggtfgfnhhsuhgsshgtrhhisggvnecuuegrihhlohhuthemuceftddunecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvfevufgjfhgffffkgggtgfesthhqredttderjeenucfhrhhomhepofhiqhhuvghlucftrgihnhgrlhcuoehmihhquhgvlhdrrhgrhihnrghlsegsohhothhlihhnrdgtohhmqeenucggtffrrghtthgvrhhnpeffgefhjedtfeeigeduudekudejkedtiefhleelueeiueevheekvdeludehiedvfeenucfkphepledvrddukeegrddutdekrdeiheenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeelvddrudekgedruddtkedrieehpdhhvghloheplhhotggrlhhhohhsthdpmhgrihhlfhhrohhmpehmihhquhgvlhdrrhgrhihnrghlsegsohhothhlihhnrdgtohhmpdhnsggprhgtphhtthhopeekpdhrtghpthhtoheplhhinhgthhgvnhhgmhhinhhgkeekgeesghhmrghilhdrtghomhdprhgtphhtthhopehvihhgnhgvshhhrhesthhirdgtohhmpdhrtghpthhtoheplhhinhhugidqmhhtugeslhhishhtshdrihhnfhhrrgguvggrugdrohhrghdprhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehrihgthhgrrhgusehnohgurdgrt hdprhgtphhtthhopegrlhhvihhniihhohhusehmgihitgdrtghomhdrthifpdhrtghpthhtoheplhgvohihuhesmhigihgtrdgtohhmrdhtfidprhgtphhtthhopegthhgvnhhgmhhinhhglhhinhesmhigihgtrdgtohhmrdhtfi Hi Cheng Ming, On 08/08/2025 at 17:55:02 +08, Cheng Ming Lin w= rote: > From: Cheng Ming Lin > > Add randomizer operation support for user data scrambling. > > For more high-reliability concern, if subpage write not available with > hardware ECC and then to enable randomizer is recommended by default. Could we adopt a helper that allows to enable and disable the randomizer? I have no use case in mind right now, but I feel like it would be a better approach. Thanks, Miqu=C3=A8l