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[2.138.103.224]) by smtp.gmail.com with ESMTPSA id c9sm3763256wrr.78.2021.03.08.10.07.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Mar 2021 10:07:33 -0800 (PST) From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= To: jonas.gorski@gmail.com, Florian Fainelli , Andrew Lunn , Vivien Didelot , Vladimir Oltean , "David S. Miller" , Jakub Kicinski , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Subject: [PATCH] net: dsa: b53: mmap: Add device tree support Date: Mon, 8 Mar 2021 19:07:15 +0100 Message-Id: <20210308180715.18571-1-noltari@gmail.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add device tree support to b53_mmap.c while keeping platform devices support. Signed-off-by: Álvaro Fernández Rojas --- drivers/net/dsa/b53/b53_mmap.c | 36 ++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/drivers/net/dsa/b53/b53_mmap.c b/drivers/net/dsa/b53/b53_mmap.c index c628d0980c0b..b897b4263930 100644 --- a/drivers/net/dsa/b53/b53_mmap.c +++ b/drivers/net/dsa/b53/b53_mmap.c @@ -228,12 +228,48 @@ static const struct b53_io_ops b53_mmap_ops = { .write64 = b53_mmap_write64, }; +static int b53_mmap_probe_of(struct platform_device *pdev, + struct b53_platform_data **ppdata) +{ + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; + struct b53_platform_data *pdata; + void __iomem *mem; + + mem = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(mem)) + return PTR_ERR(mem); + + pdata = devm_kzalloc(dev, sizeof(struct b53_platform_data), + GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + pdata->regs = mem; + pdata->chip_id = BCM63XX_DEVICE_ID; + pdata->big_endian = of_property_read_bool(np, "big-endian"); + of_property_read_u16(np, "brcm,ports", &pdata->enabled_ports); + + *ppdata = pdata; + + return 0; +} + static int b53_mmap_probe(struct platform_device *pdev) { + struct device_node *np = pdev->dev.of_node; struct b53_platform_data *pdata = pdev->dev.platform_data; struct b53_mmap_priv *priv; struct b53_device *dev; + if (np) { + int ret = b53_mmap_probe_of(pdev, &pdata); + if (ret) { + dev_err(&pdev->dev, "OF probe error\n"); + return ret; + } + } + if (!pdata) return -EINVAL; -- 2.20.1