From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 20EB4C433E0 for ; Mon, 29 Jun 2020 19:38:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E5B5F20672 for ; Mon, 29 Jun 2020 19:38:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593459539; bh=VPcS8epBLlrFbdjA3dDA2nHXRIqkQPcanzzcopIsL6E=; h=Date:From:To:Cc:In-Reply-To:References:Subject:List-ID:From; b=YIL3LGNTITFLV/II1v4vej8iRQKsqzWW4UwmphLrwGeBYyPs06gKCSjiPZk0bErzj 4sXS/hs4ChbD27LGDpA4sc1UqaPDAd5cXPON72vXlMG8+IgaIu9RsV77VZpo+8JGKb dAMqN8JjzxZxZPQBRTQ6r7lzgwQiSC7Lo3uX7TBs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732064AbgF2Tix (ORCPT ); Mon, 29 Jun 2020 15:38:53 -0400 Received: from mail.kernel.org ([198.145.29.99]:46616 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729393AbgF2Tiw (ORCPT ); Mon, 29 Jun 2020 15:38:52 -0400 Received: from localhost (fw-tnat.cambridge.arm.com [217.140.96.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E1FD220672; Mon, 29 Jun 2020 19:38:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593459532; bh=VPcS8epBLlrFbdjA3dDA2nHXRIqkQPcanzzcopIsL6E=; h=Date:From:To:Cc:In-Reply-To:References:Subject:From; b=gzT3tScuqQRogrsiLDYuckgwHfc92IZHNmS6pSZ2y0VeDfWXSDDilHXTNE6+2qvqt O05MVsgga2A3nLSlF/l02o+76FB2HLok7OwYZ47AEn7oaekBaeX615cQ/E6E0mO2+1 lroeA8Ug/bD0BYOJEttAXecAxXRzSDtd4vtC1O8E= Date: Mon, 29 Jun 2020 20:38:50 +0100 From: Mark Brown To: Douglas Anderson Cc: Andy Gross , linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, Dilip Kota , Bjorn Andersson , linux-arm-msm@vger.kernel.org, swboyd@chromium.org In-Reply-To: <20200626151946.1.I06134fd669bf91fd387dc6ecfe21d44c202bd412@changeid> References: <20200626151946.1.I06134fd669bf91fd387dc6ecfe21d44c202bd412@changeid> Subject: Re: [PATCH] spi: spi-geni-qcom: Don't set the cs if it was already right Message-Id: <159345952500.3556.3923328803896561754.b4-ty@kernel.org> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org On Fri, 26 Jun 2020 15:19:50 -0700, Douglas Anderson wrote: > Setting the chip select on the Qualcomm geni SPI controller isn't > exactly cheap. Let's cache the current setting and avoid setting the > chip select if it's already right. > > Using "flashrom" to read or write the EC firmware on a Chromebook > shows roughly a 25% reduction in interrupts and a 15% speedup. Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next Thanks! [1/1] spi: spi-geni-qcom: Don't set the cs if it was already right commit: 638d8488ae00d2e5dd5033804e82b458d3cf85b1 All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark