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Miller" , Matthias Brugger , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH 7/7] [DSA] mt7530 add linking to mdio Date: Tue, 11 Dec 2018 20:33:14 +0100 Message-Id: <20181211193314.10695-7-frank-w@public-files.de> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181211193314.10695-1-frank-w@public-files.de> References: <20181211193314.10695-1-frank-w@public-files.de> X-Provags-ID: V03:K1:/kdyN1LlQRxSXve23iYRsooYQC7XQPE+MLFtGKmyRq6aCx7CaWF FFL6X0ozaLhzOaPZ3eJCcfEwGzk3S1V9Zo7ZboAQYEsgKPf/nwlEUPzIFwssc85YdjqdhTI JKif1PECzon/COVE/8r0ICX+VLuqtLg/NrMAjNUUUXjJYgNy+taT3P8yofBNTQR2Luwut+W 6g7qSqdsx6j994w1a/V7w== X-UI-Out-Filterresults: notjunk:1;V03:K0:sZLol5aRfGU=:S/NLkB66pQ1JpOSRV6VaBg mZQkqCMr6AAsAqw8AIO3kNQaYc87G8ISC9zFztrd+Bu3WyotEIEsqPfUgJVr0IauWbYS+yKSx 5o7FC09dWNdbHkP2JZFwkb2T2Fqe2wHrIUPGcqtNve2lf3Tm75Tt+WXVBH0L0yu6qe9E4Q0an okgJVM74knJ8iScSOW6jRYHr0zpoiWW8UYpg1ITvVrXLpFMlJtwxvu+jVYxvIN/IEOgaR3hw4 4wxrNRCQu56Ozu2vdvpkOa7A9P7GHkp7jDAwubgdYihOQ9BFJsqYRFAy9FIY5mPWi6ZeUiQOY H+2DfHacy+/KH2fZXUW/THAHBvCMTQ6jYuyCmSgBuwj7nCR8peeVUF3YtwZkWJIxG/xnX/KTS TKA18J+NcPRiaJuM4anQl/mf8MZ+F6/BwcT4OEOuo8MR0bh4LmWEaSSx1ZTE4WGVMWW4F1Adp /irA6jNdSJ3i8Z2gShraycWxAKhDV/QCL97v2mAjkmqHFOi6+Fv5ZuXV2y8/zPmSK6Xun6eMA tZTEXa8SduPQlvTOiqp6aF6MR1yd05sU0ZgM8jnzB5R8k5ogvEh6/2fIKyWWHYjlkluu98SvP eJ2VF64PEhqmi4XyQrXlbH+i+xIsHMIzVD9/EDeKeu/mo1Y0kDsPJkrpzuIzKZRDkn+d1ylwO KrKMLXmd0qCJWoaGbbhNoQ1ODOv+P8NtuGM/B0CsoETcPKXv5hatDqday83Bh1xuamBa4hy+v jMTUXAKD9lq+gGyzuQUggVXk5HG24S03kKlOewFXCRvVj+ErxHaHh1YBJ9FbwaY0DFyB6wqK9 fHjM8FJiTY61DPAMDTA82uS3LaOb0D1bf4EHB4A88+e1Nc4iM6WlGlRQAjfas7AGAOkyN8eUI 2HmbsWyYREDqIS90ZVBb4UIoA9nqMg8SBLkwOPO4LB8aXjIlfjpM03JTE+/FJ1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181211_113410_526237_2E7503E5 X-CRM114-Status: UNSURE ( 9.97 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Frank Wunderlich MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP based on https://github.com/openwrt/openwrt/blob/master/target/linux/mediatek/patches-4.14/0045-net-dsa-mediatek-turn-into-platform-driver.patch Signed-off-by: Frank Wunderlich --- drivers/net/dsa/mt7530.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 83669f53cb36..e529bc334459 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -1345,7 +1345,7 @@ static int mt7530_probe(struct mdio_device *mdiodev) { struct mt7530_priv *priv; - struct device_node *dn; + struct device_node *dn, *mdio; dn = mdiodev->dev.of_node; @@ -1392,8 +1392,14 @@ mt7530_probe(struct mdio_device *mdiodev) return PTR_ERR(priv->reset); } } + mdio = of_get_parent(dn); + if (!mdio) + return -EINVAL; + + priv->bus = of_mdio_find_bus(mdio); + if (!priv->bus) + return -EPROBE_DEFER; - priv->bus = mdiodev->bus; priv->dev = &mdiodev->dev; priv->ds->priv = priv; priv->ds->ops = &mt7530_switch_ops;