From patchwork Sun Jan 7 14:03:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 13512909 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 027FD134AF for ; Sun, 7 Jan 2024 14:03:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="I6HWEHsl" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1704636199; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=/OY01PeTEJvk6CuYETd+RaDtK5F/6jApGt/2J+xPnJs=; b=I6HWEHsl5T2gLVhegRKM8bFwxbKJwtIkF447q07iNgF5YHo64JMwBhRjm9MoC92GrLLE+3 SaCH/zma5YoDzqIxMzXrxsPUeVtnHgWvudzScVlMMird0RmlsDWzs+4wiS6z7IVQOt3ber l8F/i5Pu+art/MdrMLyId+wR8jA7xNs= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-690-d4nXrB50MU-3Y1hPR4Nzyg-1; Sun, 07 Jan 2024 09:03:14 -0500 X-MC-Unique: d4nXrB50MU-3Y1hPR4Nzyg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id C759D863010; Sun, 7 Jan 2024 14:03:13 +0000 (UTC) Received: from shalem.redhat.com (unknown [10.39.192.59]) by smtp.corp.redhat.com (Postfix) with ESMTP id 39EEC2026D66; Sun, 7 Jan 2024 14:03:11 +0000 (UTC) From: Hans de Goede To: Johannes Stezenbach , Takashi Iwai , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Andy Shevchenko , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H . Peter Anvin" , Michael Turquette , Stephen Boyd Cc: Hans de Goede , platform-driver-x86@vger.kernel.org, x86@kernel.org, linux-clk@vger.kernel.org Subject: [PATCH v2 0/5] x86: atom-punit/-pmc s2idle device state checks Date: Sun, 7 Jan 2024 15:03:05 +0100 Message-ID: <20240107140310.46512-1-hdegoede@redhat.com> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.4 Hi All, These patches are an upstream submission of a patch titled: "Intel Atom suspend: add debug check for S0ix blockers" Which I have been carrying in my personal kernel tree for years now. This code originally comes from the latte-l-oss branch of: https://github.com/MiCode/Xiaomi_Kernel_OpenSource And has been posted on upstream mailinglists before by Johannes Stezenbach, whose authorship I have kept for the 2 base patches and has been reposted by Takashi Iwai and at one point in time I picked this up from Takashi's reposting as can be seen from the S-o-b lines. Unfortunately I cannot find the original postings, so I have no link to those. The original version of this added some ugly hooks into the intel_idle driver which I presume is why these patches never got anywhere upstream. With the new acpi_s2idle_dev_ops and acpi_register_lps0_dev() functionality this functionality can now be implemented cleanly and that is what this patch-series does. clk and x86/tip maintainers, it is probably the cleanest if this entire series is merged through the pdx86 tree (*). Can we have your ack for merging patch 1/5 resp. 5/5 through the pdx86 tree ? Regards, Hans *) Andy recently mentioned that it might be a good idea to move some of the arch/x86/platform code to drivers/platform/x86, arch/x86/platform/atom/punit_atom_debug.c which is a completely standalone driver definitly is a good candidate for this Hans de Goede (3): clk: x86: Move clk-pmc-atom register defines to include/linux/platform_data/x86/pmc_atom.h platform/x86: pmc_atom: Annotate d3_sts register bit defines platform/x86: pmc_atom: Check state of PMC clocks on s2idle Johannes Stezenbach (2): platform/x86: pmc_atom: Check state of PMC managed devices on s2idle x86/platform/atom: Check state of Punit managed devices on s2idle arch/x86/platform/atom/punit_atom_debug.c | 45 ++++++++++++- drivers/clk/x86/clk-pmc-atom.c | 13 +--- drivers/platform/x86/pmc_atom.c | 78 ++++++++++++++++++++++ include/linux/platform_data/x86/pmc_atom.h | 25 +++++-- 4 files changed, 142 insertions(+), 19 deletions(-) Acked-by: Borislav Petkov (AMD)