From patchwork Mon Jun 5 02:52:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiawen Wu X-Patchwork-Id: 1790173 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4QZJBt3jZ1z20Vv for ; Mon, 5 Jun 2023 12:55:50 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232422AbjFECzt (ORCPT ); Sun, 4 Jun 2023 22:55:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57012 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229886AbjFECzs (ORCPT ); Sun, 4 Jun 2023 22:55:48 -0400 Received: from smtpbguseast2.qq.com (smtpbguseast2.qq.com [54.204.34.130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E4960BD; Sun, 4 Jun 2023 19:55:44 -0700 (PDT) X-QQ-mid: bizesmtp91t1685933687tfxphhb1 Received: from wxdbg.localdomain.com ( [60.177.99.31]) by bizesmtp.qq.com (ESMTP) with id ; Mon, 05 Jun 2023 10:54:46 +0800 (CST) X-QQ-SSF: 01400000000000J0Z000000A0000000 X-QQ-FEAT: PS/N6jJLnDbvBqJ7ovR9TMrTbiBWL66TzFqRGi9xbv4dGxS2jJ9VxZG7ll72U OWBfS/5tPZ/f74fs65+QCzVeM2X1Nl+irSOsIOnQJyI+p8mBVsw0VW7FFWJzMo9YqlI/OlO Zv3f/tfaBmz7N7raQTEW+jVv9XX6UBxwqgdy7Edhxd21PHnWiMt+WRKMtEh3CAPsV2i428h l2txulRX8sF6jO47Hq699g2VBb7PcNlYS8Xz4UouGN8K8oSvjppDKDb/0zTlVdmfo8MChDb sAA+H6tWSs3N6/eY+x8ib2uuk05m+LUnueuvIK9u4R2mANrBMRm0HsBCKh9xD5o3cHT+10p FjrxDTQJ5jCsO+MC72K0Lgxz1EevnsozMzA/J15Jv+Wj9lEEZKGcI4lxMOR03gD0lFoGWr6 rA2l0oNMh7WuWzF9+6bR+g== X-QQ-GoodBg: 2 X-BIZMAIL-ID: 4719117724773436358 From: Jiawen Wu To: netdev@vger.kernel.org, jarkko.nikula@linux.intel.com, andriy.shevchenko@linux.intel.com, mika.westerberg@linux.intel.com, jsd@semihalf.com, Jose.Abreu@synopsys.com, andrew@lunn.ch, hkallweit1@gmail.com, linux@armlinux.org.uk Cc: linux-i2c@vger.kernel.org, linux-gpio@vger.kernel.org, mengyuanlou@net-swift.com, Jiawen Wu Subject: [PATCH net-next v11 3/9] net: txgbe: Register fixed rate clock Date: Mon, 5 Jun 2023 10:52:05 +0800 Message-Id: <20230605025211.743823-4-jiawenwu@trustnetic.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20230605025211.743823-1-jiawenwu@trustnetic.com> References: <20230605025211.743823-1-jiawenwu@trustnetic.com> MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:trustnetic.com:qybglogicsvrgz:qybglogicsvrgz5a-1 X-Spam-Status: No, score=-2.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org In order for I2C to be able to work in standard mode, register a fixed rate clock for each I2C device. Signed-off-by: Jiawen Wu Reviewed-by: Andrew Lunn --- drivers/net/ethernet/wangxun/Kconfig | 1 + .../net/ethernet/wangxun/txgbe/txgbe_phy.c | 41 +++++++++++++++++++ .../net/ethernet/wangxun/txgbe/txgbe_type.h | 2 + 3 files changed, 44 insertions(+) diff --git a/drivers/net/ethernet/wangxun/Kconfig b/drivers/net/ethernet/wangxun/Kconfig index c9d88673d306..190d42a203b4 100644 --- a/drivers/net/ethernet/wangxun/Kconfig +++ b/drivers/net/ethernet/wangxun/Kconfig @@ -40,6 +40,7 @@ config NGBE config TXGBE tristate "Wangxun(R) 10GbE PCI Express adapters support" depends on PCI + depends on COMMON_CLK select LIBWX help This driver supports Wangxun(R) 10GbE PCI Express family of diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c index be4b5ad74a3c..06506cfb8d06 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c @@ -2,6 +2,8 @@ /* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */ #include +#include +#include #include #include @@ -70,6 +72,32 @@ static int txgbe_swnodes_register(struct txgbe *txgbe) return software_node_register_node_group(nodes->group); } +static int txgbe_clock_register(struct txgbe *txgbe) +{ + struct pci_dev *pdev = txgbe->wx->pdev; + struct clk_lookup *clock; + char clk_name[32]; + struct clk *clk; + + snprintf(clk_name, sizeof(clk_name), "i2c_designware.%d", + (pdev->bus->number << 8) | pdev->devfn); + + clk = clk_register_fixed_rate(NULL, clk_name, NULL, 0, 156250000); + if (IS_ERR(clk)) + return PTR_ERR(clk); + + clock = clkdev_create(clk, NULL, clk_name); + if (!clock) { + clk_unregister(clk); + return -ENOMEM; + } + + txgbe->clk = clk; + txgbe->clock = clock; + + return 0; +} + int txgbe_init_phy(struct txgbe *txgbe) { int ret; @@ -80,10 +108,23 @@ int txgbe_init_phy(struct txgbe *txgbe) return ret; } + ret = txgbe_clock_register(txgbe); + if (ret) { + wx_err(txgbe->wx, "failed to register clock: %d\n", ret); + goto err_unregister_swnode; + } + return 0; + +err_unregister_swnode: + software_node_unregister_node_group(txgbe->nodes.group); + + return ret; } void txgbe_remove_phy(struct txgbe *txgbe) { + clkdev_drop(txgbe->clock); + clk_unregister(txgbe->clk); software_node_unregister_node_group(txgbe->nodes.group); } diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h index 9aa399acd9a0..856d0f9d045b 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h @@ -147,6 +147,8 @@ struct txgbe_nodes { struct txgbe { struct wx *wx; struct txgbe_nodes nodes; + struct clk_lookup *clock; + struct clk *clk; }; #endif /* _TXGBE_TYPE_H_ */