From patchwork Mon Apr 11 18:58:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Pali_Roh=C3=A1r?= X-Patchwork-Id: 12809494 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0CA8C433FE for ; Mon, 11 Apr 2022 19:01:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349297AbiDKTDh (ORCPT ); Mon, 11 Apr 2022 15:03:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58704 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344205AbiDKTDg (ORCPT ); Mon, 11 Apr 2022 15:03:36 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3C0ED32045; Mon, 11 Apr 2022 12:01:21 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id F14A5B81867; Mon, 11 Apr 2022 19:01:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 85295C385A4; Mon, 11 Apr 2022 19:01:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1649703678; bh=F3IVYCcv84WeuyRoIp+9Ax43Yu2K2bXuFY+2WqsXMr0=; h=From:To:Cc:Subject:Date:From; b=mqYOpwzlrBPRAfI8M9B0GGVUGk+VczSp/OGw1nbBe0v+hp1v864RWzs/zIG7FxwQ1 e07llQ7m3dDMxax76e4wfkv1/AkrdZvrPHK9Vw83LL1fPdasR3wQcU8ClmUcK0iAkm nt7o518VtYD1eIRFf82BDjolNKnJBtbLpIBR3NPFDGcCIh1iCAiotbK6yPGdYrvV/M MH1/mZAkiIz7pW3+lSdRmHzE5ta1XeeAKIMRBfYsbfx0KjL6cFFUQsJr8VHjQp80c/ gzk2VdnqRGGAVxwDzx3u/Gy9DNSmy307d1ZAfjdOEP8tLjj8ibn5SS/qXvsPJN2uQS q+0COb8nk3Q0w== Received: by pali.im (Postfix) id 5DFB6947; Mon, 11 Apr 2022 21:01:15 +0200 (CEST) From: =?utf-8?q?Pali_Roh=C3=A1r?= To: Lorenzo Pieralisi , Bjorn Helgaas , Rob Herring , Andrew Lunn , Thomas Petazzoni , =?utf-8?q?Krzysztof_Wilczy?= =?utf-8?q?=C5=84ski?= , =?utf-8?q?Marek_Beh=C3=BAn?= , Russell King Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 0/4] PCI: mvebu: Slot support Date: Mon, 11 Apr 2022 20:58:55 +0200 Message-Id: <20220411185859.32722-1-pali@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org This patch series add slot support to pci-mvebu.c driver. Changes in v4: * Set 239 W when DT slot-power-limit-milliwatt is between 239 W and 250 W * Fix returning power limit value Changes in v3: * Set 600 W when DT slot-power-limit-milliwatt > 600 W Changes in v2: * Dropped patch with PCI_EXP_SLTCAP_*_SHIFT macros as it is not needed anymore * Dropped patch "ARM: dts: turris-omnia: Set PCIe slot-power-limit-milliwatt properties" which was applied * Added support for PCIe 6.0 slot power limit encodings * Round down slot power limit value * Fix handling of slot power limit with scale x1.0 (0x00 value) * Use FIELD_PREP instead of _SHIFT macros * Changed commit message to Bjorn's suggestion * Changed comments in the code to match PCIe spec * Preserve user settings of PCI_EXP_SLTCTL_ASPL_DISABLE bit Pali Rohár (4): PCI: Add PCI_EXP_SLTCTL_ASPL_DISABLE macro dt-bindings: Add 'slot-power-limit-milliwatt' PCIe port property PCI: Add function for parsing 'slot-power-limit-milliwatt' DT property PCI: mvebu: Add support for sending Set_Slot_Power_Limit message Documentation/devicetree/bindings/pci/pci.txt | 6 ++ drivers/pci/controller/pci-mvebu.c | 96 ++++++++++++++++++- drivers/pci/of.c | 70 ++++++++++++++ drivers/pci/pci.h | 15 +++ include/uapi/linux/pci_regs.h | 1 + 5 files changed, 183 insertions(+), 5 deletions(-)