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[139.178.88.99]) by mx.google.com with ESMTPS id h186-20020a6253c3000000b006d9a06fd998si741812pfb.95.2024.01.11.02.17.23 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Jan 2024 02:17:23 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-23373-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=pB2wA90P; spf=pass (google.com: domain of linux-kernel+bounces-23373-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) smtp.mailfrom="linux-kernel+bounces-23373-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id D9D56282100 for ; Thu, 11 Jan 2024 10:16:14 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id ACC3912E6C; Thu, 11 Jan 2024 10:15:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="pB2wA90P" 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 E13E712E56 for ; Thu, 11 Jan 2024 10:15:52 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6D03FC433C7; Thu, 11 Jan 2024 10:15:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1704968152; bh=D6sS/Pceji4FThqKIJkfmA1PpZmWrYTLa2K2XCUK5AU=; h=From:To:Cc:In-Reply-To:References:Subject:Date:From; b=pB2wA90PxKYaSonI6IKfyrmUV4x17tyatawufFTgBUpKAszNfTp79NaqpPuGIZ7u2 t0PzHvbFE3zGNyjhB+c5EJbSVEPYGf3YnYjMfPtk5NQ9KN3412r1DvrV0pVnA8obSu VvrACsNAEvay1l2cQoxvyi/u8oCmvmLRy3Coz2K4Xv/gRHWK9sVZi92CduHPksyQ5K reRsBL4v7xUVcj9KK1TlJoyym0EKabbpa7ebbCVlpUMG4X97AjnPnsIwsK0ma5JZGW tUMUcTKgV25mtrFEmAq6tvdw4Izzv2zblAG0xC9ls7WyoJCKKUP4E//RBeIlen/1AC TRDlHfNGyF10g== From: Lee Jones To: Lee Jones , Andy Shevchenko , linux-kernel@vger.kernel.org, Aleksandrs Vinarskis Cc: Hans de Goede In-Reply-To: <20231221185142.9224-1-alex.vinarskis@gmail.com> References: <20231221185142.9224-1-alex.vinarskis@gmail.com> Subject: Re: [PATCH v4 0/2] Fix LPSS clock divider for XPS 9530 Message-Id: <170496815117.1660675.17225837755492911459.b4-ty@kernel.org> Date: Thu, 11 Jan 2024 10:15:51 +0000 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: 8bit X-Mailer: b4 0.12.3 On Thu, 21 Dec 2023 19:51:40 +0100, Aleksandrs Vinarskis wrote: > Dell XPS 9530 (2023) uses spi-pxa2xx with clock-divider enabled from > intel-lpss with the ratio of 1:32767 (Dell's firmware bug). This caps SPI > controller's speed at very low value of 3051Hz, which makes the interface > practically unusable. Since either spi-pxa2xx or intel-lpss should have > clock divider enabled, not both, and SPI controller can have higher speed > than requested by the device, it is preffered to disable intel-lpss > clock-divider, and let SPI controller handle it. > > [...] Applied, thanks! [1/2] mfd: intel-lpss: Switch to generalized quirk table commit: d43b5230c38ed6001f996eb9262b457713b31ef8 [2/2] mfd: intel-lpss: Introduce QUIRK_CLOCK_DIVIDER_UNITY for XPS 9530 commit: 106362167f49a0e83f4e6c26f9653f3061575229 -- Lee Jones [李琼斯]