/* * SPEAr thermal driver. * * Copyright (C) 2011-2012 ST Microelectronics * Author: Vincenzo Frascino * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and * may be copied, distributed, and modified under those terms. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * */ #include #include #include #include #include #include #include #include #include #define MD_FACTOR 1000 /* SPEAr Thermal Sensor Dev Structure */ struct spear_thermal_dev { /* pointer to base address of the thermal sensor */ void __iomem *thermal_base; /* clk structure */ struct clk *clk; /* pointer to thermal flags */ unsigned int flags; }; static inline int thermal_get_temp(struct thermal_zone_device *thermal, int *temp) { struct spear_thermal_dev *stdev = thermal->devdata; /* * Data are ready to be read after 628 usec from POWERDOWN signal * (PDN) = 1 */ *temp = (readl_relaxed(stdev->thermal_base) & 0x7F) * MD_FACTOR; return 0; } static struct thermal_zone_device_ops ops = { .get_temp = thermal_get_temp, }; static int __maybe_unused spear_thermal_suspend(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct thermal_zone_device *spear_thermal = platform_get_drvdata(pdev); struct spear_thermal_dev *stdev = spear_thermal->devdata; unsigned int actual_mask = 0; /* Disable SPEAr Thermal Sensor */ actual_mask = readl_relaxed(stdev->thermal_base); writel_relaxed(actual_mask & ~stdev->flags, stdev->thermal_base); clk_disable(stdev->clk); dev_info(dev, "Suspended.\n"); return 0; } static int __maybe_unused spear_thermal_resume(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct thermal_zone_device *spear_thermal = platform_get_drvdata(pdev); struct spear_thermal_dev *stdev = spear_thermal->devdata; unsigned int actual_mask = 0; int ret = 0; ret = clk_enable(stdev->clk); if (ret) { dev_err(&pdev->dev, "Can't enable clock\n"); return ret; } /* Enable SPEAr Thermal Sensor */ actual_mask = readl_relaxed(stdev->thermal_base); writel_relaxed(actual_mask | stdev->flags, stdev->thermal_base); dev_info(dev, "Resumed.\n"); return 0; } static SIMPLE_DEV_PM_OPS(spear_thermal_pm_ops, spear_thermal_suspend, spear_thermal_resume); static int spear_thermal_probe(struct platform_device *pdev) { struct thermal_zone_device *spear_thermal = NULL; struct spear_thermal_dev *stdev; struct device_node *np = pdev->dev.of_node; struct resource *res; int ret = 0, val; if (!np || !of_property_read_u32(np, "st,thermal-flags", &val)) { dev_err(&pdev->dev, "Failed: DT Pdata not passed\n"); return -EINVAL; } stdev = devm_kzalloc(&pdev->dev, sizeof(*stdev), GFP_KERNEL); if (!stdev) return -ENOMEM; /* Enable thermal sensor */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); stdev->thermal_base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(stdev->thermal_base)) return PTR_ERR(stdev->thermal_base); stdev->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(stdev->clk)) { dev_err(&pdev->dev, "Can't get clock\n"); return PTR_ERR(stdev->clk); } ret = clk_enable(stdev->clk); if (ret) { dev_err(&pdev->dev, "Can't enable clock\n"); return ret; } stdev->flags = val; writel_relaxed(stdev->flags, stdev->thermal_base); spear_thermal = thermal_zone_device_register("spear_thermal", 0, 0, stdev, &ops, NULL, 0, 0); if (IS_ERR(spear_thermal)) { dev_err(&pdev->dev, "thermal zone device is NULL\n"); ret = PTR_ERR(spear_thermal); goto disable_clk; } platform_set_drvdata(pdev, spear_thermal); dev_info(&spear_thermal->device, "Thermal Sensor Loaded at: 0x%p.\n", stdev->thermal_base); return 0; disable_clk: clk_disable(stdev->clk); return ret; } static int spear_thermal_exit(struct platform_device *pdev) { unsigned int actual_mask = 0; struct thermal_zone_device *spear_thermal = platform_get_drvdata(pdev); struct spear_thermal_dev *stdev = spear_thermal->devdata; thermal_zone_device_unregister(spear_thermal); /* Disable SPEAr Thermal Sensor */ actual_mask = readl_relaxed(stdev->thermal_base); writel_relaxed(actual_mask & ~stdev->flags, stdev->thermal_base); clk_disable(stdev->clk); return 0; } static const struct of_device_id spear_thermal_id_table[] = { { .compatible = "st,thermal-spear1340" }, {} }; MODULE_DEVICE_TABLE(of, spear_thermal_id_table); static struct platform_driver spear_thermal_driver = { .probe = spear_thermal_probe, .remove = spear_thermal_exit, .driver = { .name = "spear_thermal", .pm = &spear_thermal_pm_ops, .of_match_table = spear_thermal_id_table, }, }; module_platform_driver(spear_thermal_driver); MODULE_AUTHOR("Vincenzo Frascino "); MODULE_DESCRIPTION("SPEAr thermal driver"); MODULE_LICENSE("GPL"); '/cgit.cgi/linux/net-next.git/log/include/dt-bindings/clock/axis,artpec6-clkctrl.h?id=eeeefd41843218c55a8782a6920f044d9bf6207a'>logplain -rw-r--r--bcm-cygnus.h3135logplain -rw-r--r--bcm-ns2.h2915logplain -rw-r--r--bcm-nsp.h2148logplain -rw-r--r--bcm21664.h1984logplain -rw-r--r--bcm281xx.h2456logplain -rw-r--r--bcm2835-aux.h635logplain -rw-r--r--bcm2835.h1962logplain -rw-r--r--berlin2.h1034logplain -rw-r--r--berlin2q.h695logplain -rw-r--r--clps711x-clock.h718logplain -rw-r--r--efm32-cmu.h1112logplain -rw-r--r--exynos-audss-clk.h597logplain -rw-r--r--exynos3250.h9083logplain -rw-r--r--exynos4.h8284logplain -rw-r--r--exynos4415.h9828logplain -rw-r--r--exynos5250.h4616logplain -rw-r--r--exynos5260-clk.h14876logplain -rw-r--r--exynos5410.h1689logplain -rw-r--r--exynos5420.h6857logplain -rw-r--r--exynos5433.h45372logplain -rw-r--r--exynos5440.h1141logplain -rw-r--r--exynos7-clk.h5281logplain -rw-r--r--gxbb-aoclkc.h2866logplain -rw-r--r--gxbb-clkc.h592logplain -rw-r--r--hi3516cv300-clock.h1668logplain -rw-r--r--hi3519-clock.h1328logplain -rw-r--r--hi3620-clock.h4496logplain -rw-r--r--hi6220-clock.h4508logplain -rw-r--r--hip04-clock.h1137logplain -rw-r--r--histb-clock.h2012logplain -rw-r--r--hix5hd2-clock.h2415logplain -rw-r--r--imx1-clock.h1055logplain -rw-r--r--imx21-clock.h2461logplain -rw-r--r--imx27-clock.h3494logplain -rw-r--r--imx5-clock.h7212logplain -rw-r--r--imx6qdl-clock.h9593logplain -rw-r--r--imx6sl-clock.h5849logplain -rw-r--r--imx6sx-clock.h9099logplain -rw-r--r--imx6ul-clock.h8203logplain -rw-r--r--imx7d-clock.h15974logplain -rw-r--r--jz4740-cgu.h1028logplain -rw-r--r--jz4780-cgu.h2470logplain -rw-r--r--lpc18xx-ccu.h2134logplain -rw-r--r--lpc18xx-cgu.h1142logplain -rw-r--r--lpc32xx-clock.h1633logplain -rw-r--r--lsi,axm5516-clks.h974logplain -rw-r--r--marvell,mmp2.h2022logplain -rw-r--r--marvell,pxa168.h1654logplain -rw-r--r--marvell,pxa1928.h1535logplain -rw-r--r--marvell,pxa910.h1598logplain -rw-r--r--maxim,max77620.h632logplain -rw-r--r--maxim,max77686.h648logplain -rw-r--r--maxim,max77802.h630logplain -rw-r--r--meson8b-clkc.h523logplain -rw-r--r--microchip,pic32-clock.h1150logplain -rw-r--r--mpc512x-clock.h2236logplain -rw-r--r--mt2701-clk.h13832logplain -rw-r--r--mt8135-clk.h5641logplain -rw-r--r--mt8173-clk.h9293logplain -rw-r--r--oxsemi,ox810se.h1002logplain -rw-r--r--oxsemi,ox820.h1203logplain -rw-r--r--pistachio-clk.h4863logplain -rw-r--r--pxa-clock.h1715logplain -rw-r--r--qcom,gcc-apq8084.h12872logplain -rw-r--r--qcom,gcc-ipq4019.h5423logplain -rw-r--r--qcom,gcc-ipq806x.h8574logplain -rw-r--r--qcom,gcc-mdm9615.h9497logplain -rw-r--r--qcom,gcc-msm8660.h7932logplain -rw-r--r--qcom,gcc-msm8916.h6190logplain -rw-r--r--qcom,gcc-msm8960.h9342logplain -rw-r--r--qcom,gcc-msm8974.h12340logplain -rw-r--r--qcom,gcc-msm8994.h4858logplain -rw-r--r--qcom,gcc-msm8996.h12575logplain -rw-r--r--qcom,lcc-ipq806x.h899logplain -rw-r--r--qcom,lcc-mdm9615.h1701logplain -rw-r--r--qcom,lcc-msm8960.h1616logplain -rw-r--r--qcom,mmcc-apq8084.h5722logplain -rw-r--r--qcom,mmcc-msm8960.h4109logplain -rw-r--r--qcom,mmcc-msm8974.h5223logplain -rw-r--r--qcom,mmcc-msm8996.h9403logplain -rw-r--r--qcom,rpmcc.h2101logplain -rw-r--r--r7s72100-clock.h1218logplain -rw-r--r--r8a73a4-clock.h1596logplain -rw-r--r--r8a7740-clock.h1992logplain -rw-r--r--r8a7743-cpg-mssr.h1269logplain -rw-r--r--r8a7745-cpg-mssr.h1298logplain -rw-r--r--r8a7778-clock.h1855logplain -rw-r--r--r8a7779-clock.h1647logplain -rw-r--r--r8a7790-clock.h4367logplain -rw-r--r--r8a7791-clock.h4388logplain -rw-r--r--r8a7792-clock.h2562logplain -rw-r--r--r8a7793-clock.h4561logplain -rw-r--r--r8a7794-clock.h3679logplain -rw-r--r--r8a7795-cpg-mssr.h1890logplain -rw-r--r--r8a7796-cpg-mssr.h2066logplain -rw-r--r--renesas-cpg-mssr.h542logplain -rw-r--r--rk1108-cru.h6605logplain -rw-r--r--rk3036-cru.h4584logplain -rw-r--r--rk3066a-cru.h1068logplain -rw-r--r--rk3188-cru-common.h6105logplain -rw-r--r--rk3188-cru.h1435logplain