From patchwork Fri Sep 22 06:53:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 725412 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 2DE3B171D7 for ; Fri, 22 Sep 2023 06:53:44 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 50EF2197; Thu, 21 Sep 2023 23:53:41 -0700 (PDT) X-IronPort-AV: E=Sophos;i="6.03,167,1694703600"; d="scan'208";a="180618018" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie6.idc.renesas.com with ESMTP; 22 Sep 2023 15:53:39 +0900 Received: from localhost.localdomain (unknown [10.166.15.32]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 32E14400F7A0; Fri, 22 Sep 2023 15:53:39 +0900 (JST) From: Yoshihiro Shimoda To: lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, jingoohan1@gmail.com, gustavo.pimentel@synopsys.com, mani@kernel.org Cc: marek.vasut+renesas@gmail.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Yoshihiro Shimoda , Serge Semin Subject: [PATCH v21 07/16] PCI: dwc: Expose dw_pcie_write_dbi2() to module Date: Fri, 22 Sep 2023 15:53:22 +0900 Message-Id: <20230922065331.3806925-8-yoshihiro.shimoda.uh@renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230922065331.3806925-1-yoshihiro.shimoda.uh@renesas.com> References: <20230922065331.3806925-1-yoshihiro.shimoda.uh@renesas.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Since no PCIe controller drivers call this, this change is not required for now. But, Renesas R-Car Gen4 PCIe controller driver will call this and if the controller driver is built as a kernel module, the following build error happens: ERROR: modpost: "dw_pcie_write_dbi2" [drivers/pci/controller/dwc/pcie-rcar-gen4-host-drv.ko] undefined! So, expose dw_pcie_write_dbi2() for it. [kwilczynski: commit log] Link: https://lore.kernel.org/linux-pci/20230825093219.2685912-12-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Yoshihiro Shimoda Signed-off-by: Krzysztof Wilczyński Reviewed-by: Serge Semin Reviewed-by: Manivannan Sadhasivam --- drivers/pci/controller/dwc/pcie-designware.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c index 1f900be94556..250cf7f40b85 100644 --- a/drivers/pci/controller/dwc/pcie-designware.c +++ b/drivers/pci/controller/dwc/pcie-designware.c @@ -365,6 +365,7 @@ void dw_pcie_write_dbi2(struct dw_pcie *pci, u32 reg, size_t size, u32 val) if (ret) dev_err(pci->dev, "write DBI address failed\n"); } +EXPORT_SYMBOL_GPL(dw_pcie_write_dbi2); static inline void __iomem *dw_pcie_select_atu(struct dw_pcie *pci, u32 dir, u32 index)