From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lj1-f177.google.com (mail-lj1-f177.google.com [209.85.208.177]) (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 C967954BD8 for ; Mon, 3 Jun 2024 08:23:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.177 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717403006; cv=none; b=B/1WLgM/TtulZyttggFJWBcYVc3CJoz7FmTn/XLLbNa3DY8ZhTU1VEoz5zDB6fo87n3ZFZO85vZCOSG/5CO3YZIG7wmkTrOsSHmV+PGKn24guOBA9ue48KJ7yc6rXPrFJ6HJpJJyCohD++9ubxHRet7+9mOOWWumgBKEJKyoT9Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717403006; c=relaxed/simple; bh=VNFmjTK5w5iwem8RKQl6PpUJE46bVmRNOci0hECs87s=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=Q3JLMFv+ASY2j5Q2ApmnHv8STW7ELCYS6Sn6fmfb46sX1mukb9aVTDQgYHffuxwH/5jy6CjMT1vwPgcuWZOYGV2j4PJBqt5Db2Yc4Bm94keNfcdkC7M6Xv1DUFid6N6Y2mmGkiVQ/u1ZoF5dReSA0rJAjWydbzQxFR1bxSamleY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=YjayMXKh; arc=none smtp.client-ip=209.85.208.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="YjayMXKh" Received: by mail-lj1-f177.google.com with SMTP id 38308e7fff4ca-2eaafda3b5cso8625411fa.3 for ; Mon, 03 Jun 2024 01:23:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1717403002; x=1718007802; darn=lists.linux.dev; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=VNFmjTK5w5iwem8RKQl6PpUJE46bVmRNOci0hECs87s=; b=YjayMXKh7gKhf6Sks+ZSFVCpHF5JtR7zO18OpZ+5lS91E8Wrx+8ybrWDyFwMoWycpQ +L5nbKVnGYQSUuUnDIQExITfb4uuUujin7qBaTFsa9D8Z1QkCR7KW+NbHx+r1oHNHAo/ b5Ae8VeLn84YE6cl+kfX1j16t/Llw9y9Tkc8ikGDvpl1DC/gs+6S+0UpkDfGb8FsleiT oz7W7XCc2RTw61bAD5ZskMzzo2XCutZ+ZGZCUvJdw9g82U5gLrnK1BzAsisQi5RCJjdx UIC7j5LbzyglHTejP9EI9OAE8xWZDxALjkrTLPYMUjWTaurovbY0tv2MVKewR3/07YB4 AVyg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1717403002; x=1718007802; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=VNFmjTK5w5iwem8RKQl6PpUJE46bVmRNOci0hECs87s=; b=Tl7jRcQnAZ2NArU0Gtz6Whbsw6HAfUHwix/R4yBNfERRsPo1xYfWMhqCO21wwqv0/r 4w5Az36qukYE8PORN9gtWU4f4pkKxush+h7bqRMfk26/qcSFzYG4fRUKsuJELI2DtH3V Up/Q/rx3pqldBTC/fUINISxGEqyc3FYrVTuXmBjrn7i2+eRsFe27BxQkf9o5ndtCQoxn EW5UszNERcdJ2nN9ePtPrdmwJseXq93DlEFa0yWNeUBCsbMgBykfAf0lxA7gaeVprGfs 2ZN4cMNFhtTE8t3ZQn0D3198fUq10mdXeOJOFXMgi/2KbCwA89+15C1pEtb2+zzAwSlD QhHA== X-Gm-Message-State: AOJu0Yw7RwURFRjRzKLzwjX1/gkmHIi22vYwNq6SmpQU3YdJFhb4b7yX YJm+0bwWNSOKmWfwSSFoU++cg7JZUc98JlIokZihZfW1S77M796P87P3G4NtwwG8ur28vN2GY5B CyCmM0FGFEV++hI1Cu/6SYz/iFf8NGRNTUNQVsA== X-Google-Smtp-Source: AGHT+IFxn0HRkzmN+kNkzQexDvJdoNuf3D+rXBc9nHZeN5bzfjb4BccohwYmRU0EzgP+n8cU8VXECZX+Sp+eXDAC9SA= X-Received: by 2002:a05:651c:d:b0:2e5:8685:8b13 with SMTP id 38308e7fff4ca-2ea95160358mr50258121fa.25.1717403001819; Mon, 03 Jun 2024 01:23:21 -0700 (PDT) Precedence: bulk X-Mailing-List: ksummit@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: In-Reply-To: From: Linus Walleij Date: Mon, 3 Jun 2024 10:23:09 +0200 Message-ID: Subject: Re: [TECH TOPIC] Introducing the power sequencing subsystem To: Bartosz Golaszewski , Ulf Hansson , Doug Anderson , Javier Martinez Canillas Cc: ksummit@lists.linux.dev Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, May 29, 2024 at 5:24=E2=80=AFPM Bartosz Golaszewski wrote: > Here's my submission for the kernel summit track at LPC24. > > Note: The power sequencing subsystem has not yet made its way into > mainline but as there's a lot of time left between when I'm writing > this and the LPC24 in Vienna I think it should at least make it into > next by the time of the presentation (there do not seem to be any > showstopper objections on the mailing list). I think this is a good in-person discussion topic, because the power sequence stuff is very debatable and hard to get right, I would include Ulf Hansson, Javier Martinez Canillas and Doug Anderson (IIRC) in any such discussion since they already invented the power sequence code for MMC/SD in 2014 and probably have valuable feedback and ideas. > [1] https://lore.kernel.org/netdev/20240528-pwrseq-v8-0-d354d52b763c@lina= ro.org/ Interesting! Yours, Linus Walleij