From patchwork Wed Aug 9 08:18:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 13347529 X-Patchwork-Delegate: kw@linux.com 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 1E176C001B0 for ; Wed, 9 Aug 2023 08:19:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229459AbjHIITN (ORCPT ); Wed, 9 Aug 2023 04:19:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43048 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230207AbjHIITN (ORCPT ); Wed, 9 Aug 2023 04:19:13 -0400 Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CC8371703 for ; Wed, 9 Aug 2023 01:19:12 -0700 (PDT) Received: by mail-pf1-x432.google.com with SMTP id d2e1a72fcca58-686b91c2744so4785478b3a.0 for ; Wed, 09 Aug 2023 01:19:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1691569152; x=1692173952; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=/olz3+pT5vGvwMXGNPW6pUJny4Ruwz46zxkrZbI5uIk=; b=jrHUjZszg5aGthu3ZzuRR0j78xTaWrwJpMn+vkNQr9IJXSakR4x5Ei6YuIp+pJBl0x UNOiXLU3ceDbWiBviK/yfh8Qdz3vxlgYE1JF6+mzFKzKN5k1FvVI/qYfKcm7TFj1h5WV P7/Da4xm8nmh69i7JnsA+wrU++NQOaD4uf2GXGc6IFVrnkBLCRextjiGgMDIeEJC5jO1 sStB4HpxqjEaTSac41m8tNH9PImtWQm7T1InfKdnLT+LbzQcOaPZowLZ1w05kBlTEwZ4 PmwNpC99+17i7mfnGxf53IFmzIf1SB+Ic/cCjYLeXeZ1OVeipjxpu9cHtwgoNPVbaFxt 8Ysw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691569152; x=1692173952; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=/olz3+pT5vGvwMXGNPW6pUJny4Ruwz46zxkrZbI5uIk=; b=LdaFIhVUQE2C0s45FhfDYHzlXRip4BQE7ybAGTQy5dUl+kDAVZx+35tXMckgubqSSC gDtQsI2mboXeLQqq8VOH9M9mZVLETkWbWSbFfkdKqN/dodVHqL3MmwzojP2o/Hv+KhCp 7YVkVV18Ks2GsrdslhgakQ8XoDWUEqR/SXgbKpK3DQL21aYqYgWhfBwVIpcqqV90R41v KEwY77gYBVPkGKUTVLZAGQojcrRHEiJIH/DE5cxQ1YZtDQrW/5hXtsGYT4mdbuiYanIZ aT9lllEenXP1awXiouQ/oDIJkjDyIw9zpvDPzxDb2OE8l+ulxe2EAIrkfmHw18ZsVRuG ocuw== X-Gm-Message-State: AOJu0Ywje+TQay6V+6StgLAIHHpfVp/v7TrN8y9WjbjEo3Ee/jjxPKGI 8/bRMVHH8GJ3H4PBVHlO1M0D X-Google-Smtp-Source: AGHT+IGb/j2HSoijwa29RVJtTy6775ilCzzT+Qk8BKibKLGP8453uYMb168de6FT/MJQOAVUiKpziA== X-Received: by 2002:a05:6a20:cea2:b0:13b:9a09:674b with SMTP id if34-20020a056a20cea200b0013b9a09674bmr1594955pzb.36.1691569152270; Wed, 09 Aug 2023 01:19:12 -0700 (PDT) Received: from localhost.localdomain ([117.207.25.122]) by smtp.gmail.com with ESMTPSA id v13-20020a62a50d000000b00686ee7ba3easm9331881pfm.216.2023.08.09.01.19.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Aug 2023 01:19:11 -0700 (PDT) From: Manivannan Sadhasivam To: lpieralisi@kernel.org, kw@linux.com, bhelgaas@google.com Cc: robh@kernel.org, gustavo.pimentel@synopsys.com, jingoohan1@gmail.com, andersson@kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Manivannan Sadhasivam Subject: [PATCH 1/2] PCI: dwc: Add host_post_init() callback Date: Wed, 9 Aug 2023 13:48:39 +0530 Message-Id: <20230809081840.16034-2-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230809081840.16034-1-manivannan.sadhasivam@linaro.org> References: <20230809081840.16034-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org This callback can be used by the platform drivers to do configuration once all the devices are scanned. Like changing LNKCTL of all downstream devices to enable ASPM etc... Signed-off-by: Manivannan Sadhasivam --- drivers/pci/controller/dwc/pcie-designware-host.c | 3 +++ drivers/pci/controller/dwc/pcie-designware.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index cf61733bf78d..5ad42cdc2325 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -505,6 +505,9 @@ int dw_pcie_host_init(struct dw_pcie_rp *pp) if (ret) goto err_stop_link; + if (pp->ops->host_post_init) + pp->ops->host_post_init(pp); + return 0; err_stop_link: diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h index 615660640801..e595ae9456da 100644 --- a/drivers/pci/controller/dwc/pcie-designware.h +++ b/drivers/pci/controller/dwc/pcie-designware.h @@ -291,6 +291,7 @@ enum dw_pcie_core_rst { struct dw_pcie_host_ops { int (*host_init)(struct dw_pcie_rp *pp); void (*host_deinit)(struct dw_pcie_rp *pp); + void (*host_post_init)(struct dw_pcie_rp *pp); int (*msi_host_init)(struct dw_pcie_rp *pp); };