From patchwork Mon Jan 11 05:44:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qingfang Deng X-Patchwork-Id: 12009805 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.7 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E447C433E0 for ; Mon, 11 Jan 2021 05:46:34 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BE17B22527 for ; Mon, 11 Jan 2021 05:46:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BE17B22527 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.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=gfc9gzJRjvuSDR2v2v1Pbaux4MEV/nirzzKTo566Zhk=; b=upH6h8IYFenUKPvAnewS0YBDc Zz1PRe45GB+wDkx1U4A7fIKogAfWep3z7RsCMnZlgP9fqtcvyIxIuKWLYoYi7tq6hOoNcfWqE6FGV nAzT8WBf0gs7ASfsUxA7ojyhTge18qsynx9cEov+0rHWAv204ma62VHSwIac2kOtd+4FFlKYDJalB P2nHAVVyXNSswFORf6fvU/cUTduGmNK3KzVOMLd84F3pmmjkSmdsdC+bOHP1eZUuX1tS0tsoQ/GTF rAPigZkMnLwydVk1EZxRYJhzxVM9Ahe9qdstWvJcMpc9Lb7nozcfsY8F4FHpaVnmICoj/0CXfEsm4 5PBxOJTcQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kyq0s-0004Kv-Nl; Mon, 11 Jan 2021 05:45:11 +0000 Received: from mail-pj1-x102f.google.com ([2607:f8b0:4864:20::102f]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kyq0p-0004Ji-Pj; Mon, 11 Jan 2021 05:45:08 +0000 Received: by mail-pj1-x102f.google.com with SMTP id m5so9838168pjv.5; Sun, 10 Jan 2021 21:45:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=hAuWqa9zlPPGWTNtjhAqXZcvz6sHDTbdxmpDtENLE64=; b=rVbqmT/X02rO8QBcLBtux6QeipDc3s5TLMhcnvsfAnV0FdYwRR4249B8XlG0gTcLYd c9ZL9CdNUraHUjRWCVo8yDXS3mIPiuqp7gkFcOBSStM3l8dnoIOfdUKJqYe9h0ladMAH VRWJSUALWmnPTCPXZZele6O3aQIwtlZqp/lGa6H5OLcaGaRMYOtbCneNSSghgma78Ux0 nFN4zeRq1Pq02ync4HzngCCIc1DiaVTqQr61kmqgd08oiTmig90ol8sU5G//3ImlRBr0 bVIiUwZ/z38PAoDYNijItNCO8q1+cbF3ShxzHfozfg22e4JDc2ig/QQ4UGa/+4OmAqER 67gg== 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=hAuWqa9zlPPGWTNtjhAqXZcvz6sHDTbdxmpDtENLE64=; b=ggnVAiZvij0U4zlbVuNmDz5FgbdBWTBj3lnrXnLRPMkTHf0WrM7DD7PYDagv6MyeHP Y5Fqz4U0GGpd4IlvevFrnSeP+z7OMEOKL7tpGxtfWBA5gwXjp5wt+8C7rKB6ZPM/cZqu LvmlgvnNyBHnFOHgT89zzJKC6rE7SThyZjJcHZF+NO+EyeVQGNIo6DQuhlW8x0AChf2c 79baaC9797A+Kfw8oER78i0BZ4gZCtGw5ysmQ/y/ms84WJ/7B7o4CO1Kekcoj/7Fjl1Z /6VmqiUb8HVjrUYkkseZdrwfwKNdwyuITV+npFEg9K/HXZdz56aGwmEkJYb+uCI376bN EMCQ== X-Gm-Message-State: AOAM533jtYJ8kTXuK0HgeUXg687pCkyl5kPplLtoaeQiTg0rqNDmehcd pxKMHgyXVRTaB/N+4KzAmWZxKutoLg6enmTQ X-Google-Smtp-Source: ABdhPJzo3wpZfqA6rcjyBlf0VOquXBGwi2+VZQkVOwsgg4IQXYtz5suctAmJgG79C9X13kRDPkqZLg== X-Received: by 2002:a17:90b:1894:: with SMTP id mn20mr16282586pjb.100.1610343905989; Sun, 10 Jan 2021 21:45:05 -0800 (PST) Received: from container-ubuntu.lan ([218.89.163.70]) by smtp.gmail.com with ESMTPSA id q16sm17548005pfg.139.2021.01.10.21.44.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 10 Jan 2021 21:45:05 -0800 (PST) From: DENG Qingfang To: Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , "David S. Miller" , Jakub Kicinski , Rob Herring , Matthias Brugger , Sean Wang , Landen Chao , Philipp Zabel , Russell King , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 1/2] dt-bindings: net: dsa: add MT7530 GPIO controller binding Date: Mon, 11 Jan 2021 13:44:27 +0800 Message-Id: <20210111054428.3273-2-dqfext@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210111054428.3273-1-dqfext@gmail.com> References: <20210111054428.3273-1-dqfext@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210111_004507_880951_4377C930 X-CRM114-Status: GOOD ( 10.85 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?Ren=C3=A9_van_Dorst?= , Frank Wunderlich Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add device tree binding to support MT7530 GPIO controller. Signed-off-by: DENG Qingfang Acked-by: Rob Herring Reviewed-by: Linus Walleij --- Documentation/devicetree/bindings/net/dsa/mt7530.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/net/dsa/mt7530.txt b/Documentation/devicetree/bindings/net/dsa/mt7530.txt index 560369efad6c..de04626a8e9d 100644 --- a/Documentation/devicetree/bindings/net/dsa/mt7530.txt +++ b/Documentation/devicetree/bindings/net/dsa/mt7530.txt @@ -76,6 +76,12 @@ phy-mode must be set, see also example 2 below! * mt7621: phy-mode = "rgmii-txid"; * mt7623: phy-mode = "rgmii"; +Optional properties: + +- gpio-controller: Boolean; if defined, MT7530's LED controller will run on + GPIO mode. +- #gpio-cells: Must be 2 if gpio-controller is defined. + See Documentation/devicetree/bindings/net/dsa/dsa.txt for a list of additional required, optional properties and how the integrated switch subnodes must be specified. From patchwork Mon Jan 11 05:44:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Qingfang Deng X-Patchwork-Id: 12009807 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.7 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 793A0C433DB for ; Mon, 11 Jan 2021 05:46:43 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3B12F2251F for ; Mon, 11 Jan 2021 05:46:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3B12F2251F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.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=lLmOjbpKqmdy7oKWglCtIlOJK1Mos67bg9hxx2fmEZo=; b=WT7ghK+CWQmmzDES0zjJYlXZ4 4WsIyVm5GMGgXYIfedEKT3GXiUwh5R1zWI5TtYB9PRZ9yWBcHqJFAKHl2KkZfd3YT1iFF9NPvfulv I+QXQT/rSzn3KKBOklKGMQq3bPxFX9e9LFTLheFVXNZAriPei5QB9oJDiF3sr7MLWReMSa1/eOFL0 nh8jaCk+V0aS7QJpmtxgUmdCLHgY2K+6RT5dDV2EbhGhIuM2q6sAirVzavHrOG6y5aD3kPjnq1VFy VG/dJDtT60iWWq6R2b/JQTSFnrpQcAJpNtqGqu7SnU82hO/A1LXmagCHeXK6l4c1tzWwy9fn8NyHv j20j7CWDA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kyq19-0004RE-Td; Mon, 11 Jan 2021 05:45:27 +0000 Received: from mail-pg1-x535.google.com ([2607:f8b0:4864:20::535]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kyq17-0004Px-Fj; Mon, 11 Jan 2021 05:45:26 +0000 Received: by mail-pg1-x535.google.com with SMTP id 30so11874367pgr.6; Sun, 10 Jan 2021 21:45:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=/IG9QX0IHrdPUT/Mg6rywGJ37NO8HyXBbRa3ZgeBS9M=; b=oJ0fM+AcEpK6rJSSsNW6UOxHZphHa70yHtXPHyWvdLY1XXSpbAkPyFMvk/cDQE8A+2 tZt3vxZ9ZPheMXFV1IabJFSHVsVWxv3q5TEj1TrdSzVUbZ11Su6ZKSg7p9TFn+GZlTa2 6FsaH8vfNbNuyyJ+0d90UNxhAYzLhnBxXkaRV9dIfDUCm7/qlxembEgvx8VOd003H7xI FyUkugu7jh5NGYnfIqYRveGPj94wZ9HF00o5zfihBNFIl2Z9QzO9CPzFwXCUQkiXSzk9 Sfh9vxSXeheOrl0o/lg5gY6BdyT64G59tDdeZHO3YyM9s1ds1kvvfuqnFmij5vuHb90A eu0Q== 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=/IG9QX0IHrdPUT/Mg6rywGJ37NO8HyXBbRa3ZgeBS9M=; b=BZpMDyih6alPhz78jVGX01tKitJe5h6fE3JZtX0rmQ9q86+0UwcJcrhlqoCcr+tCXD 0cu2PNUN59OLlP6cWwkyaRgu/VoZsvtXJiKzIv/cUkKW2H7/kjv9fPh9OVQS3TKNDEt+ Mgeeu+aVYQLhxZQHhuHodGcgxeghPzVozBikAhur/EFVw+w8pyUkoRlHyU9P9Q2Mz2dE zNBEcWp8s68UKAZbhr4MZy0u7qByUDEc/nGZo4J4YTjX1o/ptHbDVRWpq9qDDtpcgCah 3gwFn0uiSTTt4b66rMaaQN5GpETTA6sNs+3HwKBZ0W09crOs+X08zFCuyvjTY9nHaObH Buxg== X-Gm-Message-State: AOAM533N1EMW9qqLfR152WKTz7hZtCNPqFh0QjpYjC0OimOMlo7w3HJr MBtl0MMkL0++F0bTohMk3k0= X-Google-Smtp-Source: ABdhPJy/ZferhM6b1DXi1APDWQlpyda2XCQFyyhZemiRFgF70lMgurxMK2f9nMPlEU6bLiCTBi5X+w== X-Received: by 2002:a65:50c8:: with SMTP id s8mr18467136pgp.68.1610343923559; Sun, 10 Jan 2021 21:45:23 -0800 (PST) Received: from container-ubuntu.lan ([218.89.163.70]) by smtp.gmail.com with ESMTPSA id q16sm17548005pfg.139.2021.01.10.21.45.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 10 Jan 2021 21:45:23 -0800 (PST) From: DENG Qingfang To: Andrew Lunn , Vivien Didelot , Florian Fainelli , Vladimir Oltean , "David S. Miller" , Jakub Kicinski , Rob Herring , Matthias Brugger , Sean Wang , Landen Chao , Philipp Zabel , Russell King , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 2/2] drivers: net: dsa: mt7530: MT7530 optional GPIO support Date: Mon, 11 Jan 2021 13:44:28 +0800 Message-Id: <20210111054428.3273-3-dqfext@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210111054428.3273-1-dqfext@gmail.com> References: <20210111054428.3273-1-dqfext@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210111_004525_544250_C5537D95 X-CRM114-Status: GOOD ( 17.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?Ren=C3=A9_van_Dorst?= , Frank Wunderlich Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org MT7530's LED controller can drive up to 15 LED/GPIOs. Add support for GPIO control and allow users to use its GPIOs by setting gpio-controller property in device tree. Signed-off-by: DENG Qingfang --- drivers/net/dsa/mt7530.c | 96 ++++++++++++++++++++++++++++++++++++++++ drivers/net/dsa/mt7530.h | 20 +++++++++ 2 files changed, 116 insertions(+) diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index a67cac15a724..0686d8cbd086 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include "mt7530.h" @@ -1639,6 +1640,95 @@ mtk_get_tag_protocol(struct dsa_switch *ds, int port, } } +static u32 +mt7530_gpio_to_bit(unsigned int offset) +{ + return BIT(offset + offset / 3); +} + +static int +mt7530_gpio_get(struct gpio_chip *gc, unsigned int offset) +{ + struct mt7530_priv *priv = gpiochip_get_data(gc); + u32 bit = mt7530_gpio_to_bit(offset); + + return !!(mt7530_read(priv, MT7530_LED_GPIO_DATA) & bit); +} + +static void +mt7530_gpio_set(struct gpio_chip *gc, unsigned int offset, int value) +{ + struct mt7530_priv *priv = gpiochip_get_data(gc); + u32 bit = mt7530_gpio_to_bit(offset); + + if (value) + mt7530_set(priv, MT7530_LED_GPIO_DATA, bit); + else + mt7530_clear(priv, MT7530_LED_GPIO_DATA, bit); +} + +static int +mt7530_gpio_get_direction(struct gpio_chip *gc, unsigned int offset) +{ + struct mt7530_priv *priv = gpiochip_get_data(gc); + u32 bit = mt7530_gpio_to_bit(offset); + + return (mt7530_read(priv, MT7530_LED_GPIO_DIR) & bit) ? + GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN; +} + +static int +mt7530_gpio_direction_input(struct gpio_chip *gc, unsigned int offset) +{ + struct mt7530_priv *priv = gpiochip_get_data(gc); + u32 bit = mt7530_gpio_to_bit(offset); + + mt7530_clear(priv, MT7530_LED_GPIO_DIR, bit); + mt7530_clear(priv, MT7530_LED_GPIO_OE, bit); + + return 0; +} + +static int +mt7530_gpio_direction_output(struct gpio_chip *gc, unsigned int offset, int value) +{ + struct mt7530_priv *priv = gpiochip_get_data(gc); + u32 bit = mt7530_gpio_to_bit(offset); + + mt7530_set(priv, MT7530_LED_GPIO_DIR, bit); + mt7530_set(priv, MT7530_LED_GPIO_OE, bit); + mt7530_gpio_set(gc, offset, value); + + return 0; +} + +static int +mt7530_setup_gpio(struct mt7530_priv *priv) +{ + struct device *dev = priv->dev; + struct gpio_chip *gc; + + gc = devm_kzalloc(dev, sizeof(*gc), GFP_KERNEL); + if (!gc) + return -ENOMEM; + + mt7530_write(priv, MT7530_LED_IO_MODE, 0); + + gc->label = "mt7530"; + gc->parent = dev; + gc->owner = THIS_MODULE; + gc->get_direction = mt7530_gpio_get_direction; + gc->direction_input = mt7530_gpio_direction_input; + gc->direction_output = mt7530_gpio_direction_output; + gc->get = mt7530_gpio_get; + gc->set = mt7530_gpio_set; + gc->base = -1; + gc->ngpio = 15; + gc->can_sleep = true; + + return devm_gpiochip_add_data(dev, gc, priv); +} + static int mt7530_setup(struct dsa_switch *ds) { @@ -1781,6 +1871,12 @@ mt7530_setup(struct dsa_switch *ds) } } + if (of_property_read_bool(priv->dev->of_node, "gpio-controller")) { + ret = mt7530_setup_gpio(priv); + if (ret) + return ret; + } + mt7530_setup_port5(ds, interface); /* Flush the FDB table */ diff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h index 32d8969b3ace..e7903ecc6a7c 100644 --- a/drivers/net/dsa/mt7530.h +++ b/drivers/net/dsa/mt7530.h @@ -554,6 +554,26 @@ enum mt7531_clk_skew { #define MT7531_GPIO12_RG_RXD3_MASK GENMASK(19, 16) #define MT7531_EXT_P_MDIO_12 (2 << 16) +/* Registers for LED GPIO control (MT7530 only) + * All registers follow this pattern: + * [2:0] port 0 + * [6:4] port 1 + * [10:8] port 2 + * [14:12] port 3 + * [18:16] port 4 + */ + +/* LED enable, 0: Disable, 1: Enable (Default) */ +#define MT7530_LED_EN 0x7d00 +/* LED mode, 0: GPIO mode, 1: PHY mode (Default) */ +#define MT7530_LED_IO_MODE 0x7d04 +/* GPIO direction, 0: Input, 1: Output */ +#define MT7530_LED_GPIO_DIR 0x7d10 +/* GPIO output enable, 0: Disable, 1: Enable */ +#define MT7530_LED_GPIO_OE 0x7d14 +/* GPIO value, 0: Low, 1: High */ +#define MT7530_LED_GPIO_DATA 0x7d18 + #define MT7530_CREV 0x7ffc #define CHIP_NAME_SHIFT 16 #define MT7530_ID 0x7530