thermal/qcom/lmh.c

1 // SPDX-License-Identifier: GPL-2.0-only
42 	int irq = irq_find_mapping(lmh_data->domain, 0);  in lmh_handle_irq()
56 	writel(0xff, lmh_data->base + LMH_REG_DCVS_INTR_CLR);  in lmh_enable_interrupt()
57 	enable_irq(lmh_data->irq);  in lmh_enable_interrupt()
64 	disable_irq_nosync(lmh_data->irq);  in lmh_disable_interrupt()
68 	.name           = "lmh",
75 	struct lmh_hw_data *lmh_data = d->host_data;  in lmh_irq_map()
97 	struct device *dev = &pdev->dev;  in lmh_probe()
98 	struct device_node *np = dev->of_node;  in lmh_probe()
106 		return -EPROBE_DEFER;  in lmh_probe()
110 		return -ENOMEM;  in lmh_probe()
112 	lmh_data->base = devm_platform_ioremap_resource(pdev, 0);  in lmh_probe()
113 	if (IS_ERR(lmh_data->base))  in lmh_probe()
114 		return PTR_ERR(lmh_data->base);  in lmh_probe()
118 		return -EINVAL;  in lmh_probe()
122 	ret = of_property_read_u32(np, "qcom,lmh-temp-high-millicelsius", &temp_high);  in lmh_probe()
124 		dev_err(dev, "missing qcom,lmh-temp-high-millicelsius property\n");  in lmh_probe()
128 	ret = of_property_read_u32(np, "qcom,lmh-temp-low-millicelsius", &temp_low);  in lmh_probe()
130 		dev_err(dev, "missing qcom,lmh-temp-low-millicelsius property\n");  in lmh_probe()
134 	ret = of_property_read_u32(np, "qcom,lmh-temp-arm-millicelsius", &temp_arm);  in lmh_probe()
136 		dev_err(dev, "missing qcom,lmh-temp-arm-millicelsius property\n");  in lmh_probe()
141 	 * Only sdm845 has lmh hardware currently enabled from hlos. If this is needed  in lmh_probe()
142 	 * for other platforms, revisit this to check if the <cpu-id, node-id> should be part  in lmh_probe()
150 		dev_err(dev, "Wrong CPU id associated with LMh node\n");  in lmh_probe()
151 		return -EINVAL;  in lmh_probe()
155 		return -EINVAL;  in lmh_probe()
211 	lmh_data->irq = platform_get_irq(pdev, 0);  in lmh_probe()
212 	lmh_data->domain = irq_domain_add_linear(np, 1, &lmh_irq_ops, lmh_data);  in lmh_probe()
213 	if (!lmh_data->domain) {  in lmh_probe()
215 		return -EINVAL;  in lmh_probe()
219 	irq_set_status_flags(lmh_data->irq, IRQ_NOAUTOEN);  in lmh_probe()
220 	ret = devm_request_irq(dev, lmh_data->irq, lmh_handle_irq,  in lmh_probe()
222 			       "lmh-irq", lmh_data);  in lmh_probe()
224 		dev_err(dev, "Error %d registering irq %x\n", ret, lmh_data->irq);  in lmh_probe()
225 		irq_domain_remove(lmh_data->domain);  in lmh_probe()
233 	{ .compatible = "qcom,sc8180x-lmh", },
234 	{ .compatible = "qcom,sdm845-lmh", .data = (void *)LMH_ENABLE_ALGOS},
235 	{ .compatible = "qcom,sm8150-lmh", },
243 		.name = "qcom-lmh",
251 MODULE_DESCRIPTION("QCOM LMh driver");