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Thu, 21 Feb 2019 18:03:51 +0000 From: Aisheng Dong To: "linux-clk@vger.kernel.org" Subject: [PATCH 3/4] clk: imx: imx8qxp: add parsing clocks from device tree Thread-Topic: [PATCH 3/4] clk: imx: imx8qxp: add parsing clocks from device tree Thread-Index: AQHUyg/MD67g7uqnCE2saCOKw8+KDA== Date: Thu, 21 Feb 2019 18:03:51 +0000 Message-ID: <1550771836-10014-4-git-send-email-aisheng.dong@nxp.com> References: <1550771836-10014-1-git-send-email-aisheng.dong@nxp.com> In-Reply-To: <1550771836-10014-1-git-send-email-aisheng.dong@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.7.4 x-clientproxiedby: HK2PR04CA0044.apcprd04.prod.outlook.com (2603:1096:202:14::12) To VI1PR04MB4222.eurprd04.prod.outlook.com (2603:10a6:803:3e::21) authentication-results: spf=none (sender IP is ) smtp.mailfrom=aisheng.dong@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [119.31.174.66] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: f9c43c61-7b6f-4d08-f68c-08d69826ef35 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0; 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+ const char *name; + int clk_type; + int rsrc_id; + int ret; + + ret = of_property_read_u32(np, "rsrc-id", &rsrc_id); + if (ret) { + dev_err(dev, "failed to parse rsrc-id\n"); + return -EINVAL; + } + + ret = of_property_read_u32(np, "clk-type", &clk_type); + if (ret) { + dev_err(dev, "failed to parse clk-type\n"); + return -EINVAL; + } + + ret = of_property_read_string(np, "clock-output-names", &name); + if (ret) { + dev_err(dev, "failed to parse clock-output-names\n"); + return -EINVAL; + } + + hw = imx_clk_scu(name, rsrc_id, clk_type); + if (IS_ERR(hw)) { + dev_err(dev, "failed to register clock\n"); + return -EINVAL; + } + + return devm_of_clk_add_hw_provider(dev, of_clk_hw_simple_get, hw); +} + static int imx8qxp_clk_probe(struct platform_device *pdev) { struct device_node *ccm_node = pdev->dev.of_node; struct clk_hw_onecell_data *clk_data; struct clk_hw **clks; + u32 clock_cells; int ret, i; ret = imx_clk_scu_init(); if (ret) return ret; + /* try new binding to parse clocks from device tree first */ + of_property_read_u32(ccm_node, "#clock-cells", &clock_cells); + + if (clock_cells == 0) + return imx_scu_parse_clks_from_dt(&pdev->dev, ccm_node); + clk_data = devm_kzalloc(&pdev->dev, struct_size(clk_data, hws, IMX_SCU_CLK_END), GFP_KERNEL); if (!clk_data)