From patchwork Sat Jul 28 05:35:56 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 10547879 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B6E50112B for ; Sat, 28 Jul 2018 05:36:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8E3AE2BB58 for ; Sat, 28 Jul 2018 05:36:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6B3DE2BB71; Sat, 28 Jul 2018 05:36:33 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0D36B2BB58 for ; Sat, 28 Jul 2018 05:36:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=VliGlmscqa/SjF16a7cSHQjyNMHkzoNIhpZXvkWXJPE=; b=hAVeavTnfL4iDF 3CAPvOitcdZFekVpBZCI+WK0GV8L+yD8oilXReUr2mlaCcslHbIQdeAKqYxAu5DQT6Vk+KYXlC3Hc Qfi45xOxpfrRJqhCk8DKcMrZSyMj4iWjaPCBmaBedhGJS4u2MqYP/BizEMIU5wHsUf6gDxcr9MXxO E9ICy4Em2RKgamhBTkWtdJYQ/v9b5E2lQwGZmOaxuqGtEr7ll6F6qosx5vSAPszED8uMKwaaJhL6V pf1rPX0ARYzph2ym4M1h/VEqunP0le9ODGUMD7ngsevVjJUlJ1sVDL91GF//DqtryvNLTNClpUXCB eS5xbCrZcecKblnPuNbQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fjHu2-0006QY-NY for patchwork-linux-mediatek@patchwork.kernel.org; Sat, 28 Jul 2018 05:36:30 +0000 Received: from [210.61.82.183] (helo=mailgw01.mediatek.com) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fjHtx-0006Oq-3A for linux-mediatek@lists.infradead.org; Sat, 28 Jul 2018 05:36:28 +0000 X-UUID: bd72859f023147c893f565fdbac925cc-20180728 Received: from mtkexhb02.mediatek.inc [(172.21.101.103)] by mailgw01.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1367889538; Sat, 28 Jul 2018 13:36:06 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1210.3; Sat, 28 Jul 2018 13:36:04 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1210.3 via Frontend Transport; Sat, 28 Jul 2018 13:36:04 +0800 From: To: , Subject: [PATCH net-next 2/2] net-next: mediatek: cleanup unnecessary get chip id and its user Date: Sat, 28 Jul 2018 13:35:56 +0800 Message-ID: X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <658dfd485c035cdae5452bc5d572125076b47a48.1532755541.git.sean.wang@mediatek.com> References: <658dfd485c035cdae5452bc5d572125076b47a48.1532755541.git.sean.wang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180727_223625_392417_38DB4482 X-CRM114-Status: GOOD ( 11.60 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: netdev@vger.kernel.org, nbd@openwrt.org, Sean Wang , linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sean Wang Since driver is devicetree-based, all device type and charateristic can be determined by the compatible string and its data. It's unnecessary to create another dependent function to check chip ID and then decide whether the specific funciton is being supported on a certain device. It can be totally replaced by the existing flag, so a cleanup is made by removing the function and the only user, HWLRO. MT2701 also have a missing HWLRO support in old code, so add it the same patch. Signed-off-by: Sean Wang --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 48 +++-------------------------- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 2 +- 2 files changed, 5 insertions(+), 45 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 8c85a4b..6e6abdc 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -2458,42 +2458,6 @@ static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) return err; } -static int mtk_get_chip_id(struct mtk_eth *eth, u32 *chip_id) -{ - u32 val[2], id[4]; - - regmap_read(eth->ethsys, ETHSYS_CHIPID0_3, &val[0]); - regmap_read(eth->ethsys, ETHSYS_CHIPID4_7, &val[1]); - - id[3] = ((val[0] >> 16) & 0xff) - '0'; - id[2] = ((val[0] >> 24) & 0xff) - '0'; - id[1] = (val[1] & 0xff) - '0'; - id[0] = ((val[1] >> 8) & 0xff) - '0'; - - *chip_id = (id[3] * 1000) + (id[2] * 100) + - (id[1] * 10) + id[0]; - - if (!(*chip_id)) { - dev_err(eth->dev, "failed to get chip id\n"); - return -ENODEV; - } - - dev_info(eth->dev, "chip id = %d\n", *chip_id); - - return 0; -} - -static bool mtk_is_hwlro_supported(struct mtk_eth *eth) -{ - switch (eth->chip_id) { - case MT7622_ETH: - case MT7623_ETH: - return true; - } - - return false; -} - static int mtk_probe(struct platform_device *pdev) { struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -2572,11 +2536,7 @@ static int mtk_probe(struct platform_device *pdev) if (err) return err; - err = mtk_get_chip_id(eth, ð->chip_id); - if (err) - return err; - - eth->hwlro = mtk_is_hwlro_supported(eth); + eth->hwlro = MTK_HAS_CAPS(eth->soc->caps, MTK_HWLRO); for_each_child_of_node(pdev->dev.of_node, mac_np) { if (!of_device_is_compatible(mac_np, @@ -2665,19 +2625,19 @@ static int mtk_remove(struct platform_device *pdev) } static const struct mtk_soc_data mt2701_data = { - .caps = MTK_GMAC1_TRGMII, + .caps = MTK_GMAC1_TRGMII | MTK_HWLRO, .required_clks = MT7623_CLKS_BITMAP, .required_pctl = true, }; static const struct mtk_soc_data mt7622_data = { - .caps = MTK_DUAL_GMAC_SHARED_SGMII | MTK_GMAC1_ESW, + .caps = MTK_DUAL_GMAC_SHARED_SGMII | MTK_GMAC1_ESW | MTK_HWLRO, .required_clks = MT7622_CLKS_BITMAP, .required_pctl = false, }; static const struct mtk_soc_data mt7623_data = { - .caps = MTK_GMAC1_TRGMII, + .caps = MTK_GMAC1_TRGMII | MTK_HWLRO, .required_clks = MT7623_CLKS_BITMAP, .required_pctl = true, }; diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index 672b8c3..4681929 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -566,6 +566,7 @@ struct mtk_rx_ring { #define MTK_GMAC2_SGMII (BIT(10) | MTK_SGMII) #define MTK_DUAL_GMAC_SHARED_SGMII (BIT(11) | MTK_GMAC1_SGMII | \ MTK_GMAC2_SGMII) +#define MTK_HWLRO BIT(12) #define MTK_HAS_CAPS(caps, _x) (((caps) & (_x)) == (_x)) /* struct mtk_eth_data - This is the structure holding all differences @@ -635,7 +636,6 @@ struct mtk_eth { struct regmap *ethsys; struct regmap *sgmiisys; struct regmap *pctl; - u32 chip_id; bool hwlro; refcount_t dma_refcnt; struct mtk_tx_ring tx_ring;