From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f48.google.com (mail-pj1-f48.google.com [209.85.216.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0DD7F4A9F for ; Thu, 17 Mar 2022 21:46:29 +0000 (UTC) Received: by mail-pj1-f48.google.com with SMTP id l4-20020a17090a49c400b001c6840df4a3so2898416pjm.0 for ; Thu, 17 Mar 2022 14:46:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=4nG1tjL8NLMsT4cMgggdZFwaJZ01TiYbAaXgC6uFDB0=; b=LshajC2/xAr2200yH3KNZOFjlWNSOShPGCyj+JvOZlsPXiXdfNYvHCsJmCx9wYXKWU 1xbGadWUjt6wR82iYphWGcVUpnqF1AHTmD7X/qcs8F1nJAxiFkVv5qZWhRJ/VAeOkzse KCZydwVP5PxIHu+aZMT4mWdVcqMwmDGY4efBM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=4nG1tjL8NLMsT4cMgggdZFwaJZ01TiYbAaXgC6uFDB0=; b=KcTC0lydtjW07YJW8AWdCeVOFuGpIpE973bEhzgDqDhrX4x/4CsTTiDicfTOouEiyg QVeloX4gcj2aBiNva82ofOufLC2BLlyDFRhORrxX1HNTtP9aoXGg0KAHuScyTvb08Fgc WPRiIcqyC07P/DWMczQslRanN9w0zcSQSY4bqHcMnipYcgKcWGYSnoOCjmZdmoVzbjN4 6u3XLbfJ+ke4cTlyoBGwzYOMR+HxNt47StbdEjutv3dSDLtdMMCvcKVceJE/O17HP0jK VDWOK8BsnayLp5TVzAyNtdAIV8pQLlpPwrSjUw7BRQbv9YAHJuGKBguS5SUre3XRki/n W9KA== X-Gm-Message-State: AOAM530yy5Y4geWv4KC0F9PJg6gfq2rNC5HGW+cNeM8eJwi1boAClkzg spR6bVSDCDGr5RRlhrhBWDfhJQ== X-Google-Smtp-Source: ABdhPJz4qlnmPCz+FBLPosA30YBgzzO1nOPfvrAYzZv2zyeVEcZnwOe+NpoMwJLbpb6lrP1paknYYQ== X-Received: by 2002:a17:902:c40e:b0:151:a83a:540c with SMTP id k14-20020a170902c40e00b00151a83a540cmr6960279plk.10.1647553589534; Thu, 17 Mar 2022 14:46:29 -0700 (PDT) Received: from localhost ([2620:15c:202:201:ae74:932d:af6a:6079]) by smtp.gmail.com with UTF8SMTPSA id h22-20020a056a001a5600b004f7c17b291asm7718766pfv.87.2022.03.17.14.46.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 17 Mar 2022 14:46:29 -0700 (PDT) Date: Thu, 17 Mar 2022 14:46:27 -0700 From: Matthias Kaehlcke To: Stephen Boyd Cc: Benson Leung , linux-kernel@vger.kernel.org, chrome-platform@lists.linux.dev, Guenter Roeck , Douglas Anderson , Craig Hesling , Tom Hughes , Alexandru M Stan , Tzung-Bi Shih Subject: Re: [PATCH v2 3/3] platform/chrome: cros_ec_spi: Boot fingerprint processor during probe Message-ID: References: <20220317005814.2496302-1-swboyd@chromium.org> <20220317005814.2496302-4-swboyd@chromium.org> Precedence: bulk X-Mailing-List: chrome-platform@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20220317005814.2496302-4-swboyd@chromium.org> On Wed, Mar 16, 2022 at 05:58:14PM -0700, Stephen Boyd wrote: > Add gpio control to this driver so that the fingerprint device can be > booted if the BIOS isn't doing it already. This eases bringup of new > hardware as we don't have to wait for the BIOS to be ready, supports > kexec where the GPIOs may not be configured by the previous boot stage, > and is all around good hygiene because we control GPIOs for this device > from the device driver. > > Cc: Guenter Roeck > Cc: Douglas Anderson > Cc: Craig Hesling > Cc: Tom Hughes > Cc: Alexandru M Stan > Cc: Tzung-Bi Shih > Signed-off-by: Stephen Boyd Reviewed-by: Matthias Kaehlcke