From patchwork Wed Nov 23 04:15:14 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shawn Lin X-Patchwork-Id: 9442565 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4A37160587 for ; Wed, 23 Nov 2016 04:16:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3B649204BD for ; Wed, 23 Nov 2016 04:16:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2DCE9205A8; Wed, 23 Nov 2016 04:16:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id ED3A2204BD for ; Wed, 23 Nov 2016 04:16:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755487AbcKWEQe (ORCPT ); Tue, 22 Nov 2016 23:16:34 -0500 Received: from lucky1.263xmail.com ([211.157.147.131]:57102 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755727AbcKWEQd (ORCPT ); Tue, 22 Nov 2016 23:16:33 -0500 Received: from shawn.lin?rock-chips.com (unknown [192.168.167.157]) by lucky1.263xmail.com (Postfix) with ESMTP id 6B4D28F394; Wed, 23 Nov 2016 12:16:05 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost.localdomain (localhost [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id 5968F428; Wed, 23 Nov 2016 12:16:05 +0800 (CST) X-RL-SENDER: shawn.lin@rock-chips.com X-FST-TO: bhelgaas@google.com X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: shawn.lin@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-SENDER: lintao@rock-chips.com X-DNS-TYPE: 0 Received: from unknown (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith SMTP id 27468TBOOAT; Wed, 23 Nov 2016 12:16:06 +0800 (CST) From: Shawn Lin To: Bjorn Helgaas Cc: linux-pci@vger.kernel.org, linux-rockchip@lists.infradead.org, Wenrui Li , Brian Norris , Jeffy Chen , Shawn Lin Subject: [PATCH v2 2/3] PCI: rockchip: move the deassert of pm/aclk/pclk after phy_init Date: Wed, 23 Nov 2016 12:15:14 +0800 Message-Id: <1479874515-65872-2-git-send-email-shawn.lin@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1479874515-65872-1-git-send-email-shawn.lin@rock-chips.com> References: <1479874515-65872-1-git-send-email-shawn.lin@rock-chips.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Move them after phy_init as we want to optimize the logic of reset control and reuse rockchip_pcie_init_port later which should fully follow the cold boot procedure of ROM code. Signed-off-by: Shawn Lin --- Changes in v2: None drivers/pci/host/pcie-rockchip.c | 40 ++++++++++++++++++++-------------------- 1 file changed, 20 insertions(+), 20 deletions(-) diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c index 9cb84b1..457401d 100644 --- a/drivers/pci/host/pcie-rockchip.c +++ b/drivers/pci/host/pcie-rockchip.c @@ -473,26 +473,6 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip) return err; } - udelay(10); - - err = reset_control_deassert(rockchip->pm_rst); - if (err) { - dev_err(dev, "deassert pm_rst err %d\n", err); - return err; - } - - err = reset_control_deassert(rockchip->aclk_rst); - if (err) { - dev_err(dev, "deassert mgmt_sticky_rst err %d\n", err); - return err; - } - - err = reset_control_deassert(rockchip->pclk_rst); - if (err) { - dev_err(dev, "deassert mgmt_sticky_rst err %d\n", err); - return err; - } - err = phy_init(rockchip->phy); if (err < 0) { dev_err(dev, "fail to init phy, err %d\n", err); @@ -523,6 +503,26 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip) return err; } + udelay(10); + + err = reset_control_deassert(rockchip->pm_rst); + if (err) { + dev_err(dev, "deassert pm_rst err %d\n", err); + return err; + } + + err = reset_control_deassert(rockchip->aclk_rst); + if (err) { + dev_err(dev, "deassert aclk_rst err %d\n", err); + return err; + } + + err = reset_control_deassert(rockchip->pclk_rst); + if (err) { + dev_err(dev, "deassert pclk_rst err %d\n", err); + return err; + } + if (rockchip->link_gen == 2) rockchip_pcie_write(rockchip, PCIE_CLIENT_GEN_SEL_2, PCIE_CLIENT_CONFIG);