From patchwork Mon Aug 3 21:00:57 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rob Herring (Arm)" X-Patchwork-Id: 11698893 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 372CF138C for ; Mon, 3 Aug 2020 21:01:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 796EB22C9F for ; Mon, 3 Aug 2020 21:01:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596488500; bh=eVYlUTEUws6RuTLgOd1AvurezPBdddTt0ZEERZZ1G68=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=hiit4T8Fbe9J+DYlDTxcFybReUi1xVk7MAHnRyUqSa5RoljuKx64vhc7CYvr3nJoV ZMwoS/bS0O8kShrKoG+WNFWxfPGjGlsP0WPAqd5JY1z45KzncIySs339ToAbFqCrxP bF0t7l8g2ZZnFuwEa8B2wGwd1UMXZwtrnEWvmdpk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728786AbgHCVBj (ORCPT ); Mon, 3 Aug 2020 17:01:39 -0400 Received: from mail-io1-f65.google.com ([209.85.166.65]:45700 "EHLO mail-io1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729370AbgHCVBi (ORCPT ); Mon, 3 Aug 2020 17:01:38 -0400 Received: by mail-io1-f65.google.com with SMTP id u126so2717262iod.12; Mon, 03 Aug 2020 14:01:37 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=qfEvf5H5JZ3RCT8OcWDqKEAE854FjnIcjQahQFy60ZU=; b=ERSly5GkwWXYFvfxneAsDkwNhQgKm/cv6Qa9KURKeQacv7ptH1yGplFUYjHsTfLjl+ 4EIBd34LkyV8Y2IcPZhsQYo+WRs7oNhY9u72xMhDrr8WNotB0XDDZXOODB7P1nMnMqhR Zdf1kqqp9UjcCtKDAQo37AacHl64/w/m7F+MPREjFXBMZwdzYsCB3JV+De3o/UTj+bIi +IQTgPzoEcbSlUdXCEJ/+R2Fqe5rf/OHNmNx66SGkPmomaHFWThW2Fi7o0SaConG/cai PuRJl2roJRdNK7abqq+P6f3l05JsLhfnym9vVigyEeftkvr38MQOfivvdZMmrwcK260W bNcA== X-Gm-Message-State: AOAM5313zTPMxSYsr3hEAKJH5QEzzY0U8NvzEj717IpxM4dOH9/8UmKn zvA9jNS1CLl4L13sq+HWjA== X-Google-Smtp-Source: ABdhPJxVu37JrAtNyU3mWLs6CsBaCHUNz0/4V4wrWC42BJDmf56FSirpVGwbFUOMHezq7H+x89bQUQ== X-Received: by 2002:a6b:9008:: with SMTP id s8mr1803377iod.132.1596488497604; Mon, 03 Aug 2020 14:01:37 -0700 (PDT) Received: from xps15.herring.priv ([64.188.179.252]) by smtp.googlemail.com with ESMTPSA id r6sm9292280iod.7.2020.08.03.14.01.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Aug 2020 14:01:37 -0700 (PDT) From: Rob Herring To: Bjorn Helgaas , Gustavo Pimentel , Jingoo Han , Lorenzo Pieralisi Cc: Binghui Wang , Bjorn Andersson , Fabio Estevam , Jesper Nilsson , Jonathan Chocron , Jonathan Hunter , Kevin Hilman , Kishon Vijay Abraham I , Krzysztof Kozlowski , Kukjin Kim , Kunihiko Hayashi , linux-amlogic@lists.infradead.org, linux-arm-kernel@axis.com, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-omap@vger.kernel.org, linux-pci@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-tegra@vger.kernel.org, Lucas Stach , Masahiro Yamada , Murali Karicheri , NXP Linux Team , Pengutronix Kernel Team , Pratyush Anand , Richard Zhu , Sascha Hauer , Shawn Guo , Stanimir Varbanov , Thierry Reding , Xiaowei Song , Yue Wang Subject: [RFC 08/27] PCI: dwc: meson: Use pci_ops for root config space accessors Date: Mon, 3 Aug 2020 15:00:57 -0600 Message-Id: <20200803210116.3132633-9-robh@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200803210116.3132633-1-robh@kernel.org> References: <20200803210116.3132633-1-robh@kernel.org> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Now that DWC drivers can setup their own pci_ops for the root and child buses, convert the Amlogic meson driver to use the standard pci_ops for root bus config accesses. FIXME: child bus accessors Cc: Yue Wang Cc: Lorenzo Pieralisi Cc: Bjorn Helgaas Cc: Kevin Hilman Cc: linux-amlogic@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Rob Herring --- drivers/pci/controller/dwc/pci-meson.c | 23 ++++++++++------------- 1 file changed, 10 insertions(+), 13 deletions(-) diff --git a/drivers/pci/controller/dwc/pci-meson.c b/drivers/pci/controller/dwc/pci-meson.c index ca59ba9e0ecd..54ce3369d963 100644 --- a/drivers/pci/controller/dwc/pci-meson.c +++ b/drivers/pci/controller/dwc/pci-meson.c @@ -383,13 +383,12 @@ static void meson_pcie_enable_interrupts(struct meson_pcie *mp) dw_pcie_msi_init(&mp->pci.pp); } -static int meson_pcie_rd_own_conf(struct pcie_port *pp, int where, int size, - u32 *val) +static int meson_pcie_rd_own_conf(struct pci_bus *bus, u32 devfn, + int where, int size, u32 *val) { - struct dw_pcie *pci = to_dw_pcie_from_pp(pp); int ret; - ret = dw_pcie_read(pci->dbi_base + where, size, val); + ret = pci_generic_config_read(bus, devfn, where, size, val); if (ret != PCIBIOS_SUCCESSFUL) return ret; @@ -410,13 +409,11 @@ static int meson_pcie_rd_own_conf(struct pcie_port *pp, int where, int size, return PCIBIOS_SUCCESSFUL; } -static int meson_pcie_wr_own_conf(struct pcie_port *pp, int where, - int size, u32 val) -{ - struct dw_pcie *pci = to_dw_pcie_from_pp(pp); - - return dw_pcie_write(pci->dbi_base + where, size, val); -} +static struct pci_ops meson_pci_ops = { + .map_bus = dw_pcie_own_conf_map_bus, + .read = meson_pcie_rd_own_conf, + .write = pci_generic_config_write, +}; static int meson_pcie_link_up(struct dw_pcie *pci) { @@ -463,6 +460,8 @@ static int meson_pcie_host_init(struct pcie_port *pp) struct meson_pcie *mp = to_meson_pcie(pci); int ret; + pp->bridge->ops = &meson_pci_ops; + ret = meson_pcie_establish_link(mp); if (ret) return ret; @@ -473,8 +472,6 @@ static int meson_pcie_host_init(struct pcie_port *pp) } static const struct dw_pcie_host_ops meson_pcie_host_ops = { - .rd_own_conf = meson_pcie_rd_own_conf, - .wr_own_conf = meson_pcie_wr_own_conf, .host_init = meson_pcie_host_init, };