1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
6  * SAW power controller driver
22 #include <asm/proc-fns.h>
113 					enum spm_reg reg, u32 val)  in spm_register_write()  argument
115 	if (drv->reg_data->reg_offset[reg])  in spm_register_write()
116 		writel_relaxed(val, drv->reg_base +  in spm_register_write()
117 				drv->reg_data->reg_offset[reg]);  in spm_register_write()
122 					enum spm_reg reg, u32 val)  in spm_register_write_sync()  argument
126 	if (!drv->reg_data->reg_offset[reg])  in spm_register_write_sync()
130 		writel_relaxed(val, drv->reg_base +  in spm_register_write_sync()
131 				drv->reg_data->reg_offset[reg]);  in spm_register_write_sync()
132 		ret = readl_relaxed(drv->reg_base +  in spm_register_write_sync()
133 				drv->reg_data->reg_offset[reg]);  in spm_register_write_sync()
141 					enum spm_reg reg)  in spm_register_read()  argument
143 	return readl_relaxed(drv->reg_base + drv->reg_data->reg_offset[reg]);  in spm_register_read()
152 	start_index = drv->reg_data->start_index[mode];  in spm_set_low_power_mode()
169 	return -1;  in qcom_pm_collapse()
212 	{ .compatible = "qcom,idle-state-spc", .data = spm_enter_idle_state },
221 	drv->cpumask = (struct cpumask *)cpumask_of(cpu);  in spm_cpuidle_init()
226 		return ret ? : -ENODEV;  in spm_cpuidle_init()
229 	return qcom_scm_set_warm_boot_addr(cpu_resume_arm, drv->cpumask);  in spm_cpuidle_init()
244 		saw_node = of_parse_phandle(cpu_node, "qcom,saw", 0);  in spm_get_drv()
245 		found = (saw_node == pdev->dev.of_node);  in spm_get_drv()
253 		drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);  in spm_get_drv()
262 	{ .compatible = "qcom,msm8974-saw2-v2.1-cpu",
264 	{ .compatible = "qcom,apq8084-saw2-v2.1-cpu",
266 	{ .compatible = "qcom,apq8064-saw2-v1.1-cpu",
280 		return -EPROBE_DEFER;  in spm_dev_probe()
284 		return -EINVAL;  in spm_dev_probe()
288 	drv->reg_base = devm_ioremap_resource(&pdev->dev, res);  in spm_dev_probe()
289 	if (IS_ERR(drv->reg_base))  in spm_dev_probe()
290 		return PTR_ERR(drv->reg_base);  in spm_dev_probe()
292 	match_id = of_match_node(spm_match_table, pdev->dev.of_node);  in spm_dev_probe()
294 		return -ENODEV;  in spm_dev_probe()
296 	drv->reg_data = match_id->data;  in spm_dev_probe()
298 	ret = spm_cpuidle_init(&drv->cpuidle_driver, cpu);  in spm_dev_probe()
303 	addr = drv->reg_base + drv->reg_data->reg_offset[SPM_REG_SEQ_ENTRY];  in spm_dev_probe()
304 	__iowrite32_copy(addr, drv->reg_data->seq,  in spm_dev_probe()
305 			ARRAY_SIZE(drv->reg_data->seq) / 4);  in spm_dev_probe()
313 	spm_register_write(drv, SPM_REG_CFG, drv->reg_data->spm_cfg);  in spm_dev_probe()
314 	spm_register_write(drv, SPM_REG_DLY, drv->reg_data->spm_dly);  in spm_dev_probe()
315 	spm_register_write(drv, SPM_REG_PMIC_DLY, drv->reg_data->pmic_dly);  in spm_dev_probe()
317 				drv->reg_data->pmic_data[0]);  in spm_dev_probe()
319 				drv->reg_data->pmic_data[1]);  in spm_dev_probe()
324 	return cpuidle_register(&drv->cpuidle_driver, NULL);  in spm_dev_probe()
331 	cpuidle_unregister(&drv->cpuidle_driver);  in spm_dev_remove()
339 		.name = "saw",