1 // SPDX-License-Identifier: GPL-2.0
54 #define REGS_V2_TMSAR(n)	(0x304 + 16 * (n))	/* TMU monitoring
57 #define REGS_TTRnCR(n)	(0xf10 + 4 * (n)) /* Temperature Range n
81 	return container_of(s, struct qoriq_tmu_data, sensor[s->id]);  in qoriq_sensor_to_data()
92 	 * For TMU Rev1:  in tmu_get_temp()
97 	 * within sensor range. TEMP is an 8 bit value representing  in tmu_get_temp()
100 	 * For TMU Rev2:  in tmu_get_temp()
105 	 * within sensor range. TEMP is an 9 bit value representing  in tmu_get_temp()
109 	regmap_read(qdata->regmap, REGS_TMR, &val);  in tmu_get_temp()
111 		return -EAGAIN;  in tmu_get_temp()
113 	if (regmap_read_poll_timeout(qdata->regmap,  in tmu_get_temp()
114 				     REGS_TRITSR(qsensor->id),  in tmu_get_temp()
119 		return -ENODATA;  in tmu_get_temp()
121 	if (qdata->ver == TMU_VER1) {  in tmu_get_temp()
145 		struct qoriq_sensor *sensor = &qdata->sensor[id];  in qoriq_tmu_register_tmu_zone()
148 		sensor->id = id;  in qoriq_tmu_register_tmu_zone()
155 			if (ret == -ENODEV)  in qoriq_tmu_register_tmu_zone()
161 		if (qdata->ver == TMU_VER1)  in qoriq_tmu_register_tmu_zone()
162 			sites |= 0x1 << (15 - id);  in qoriq_tmu_register_tmu_zone()
170 		if (qdata->ver == TMU_VER1) {  in qoriq_tmu_register_tmu_zone()
171 			regmap_write(qdata->regmap, REGS_TMR, TMR_ME | TMR_ALPF | sites);  in qoriq_tmu_register_tmu_zone()
173 			regmap_write(qdata->regmap, REGS_V2_TMSR, sites);  in qoriq_tmu_register_tmu_zone()
174 			regmap_write(qdata->regmap, REGS_TMR, TMR_ME | TMR_ALPF_V2);  in qoriq_tmu_register_tmu_zone()
185 	u32 range[4];  in qoriq_tmu_calibration()  local
187 	struct device_node *np = dev->of_node;  in qoriq_tmu_calibration()
189 	len = of_property_count_u32_elems(np, "fsl,tmu-range");  in qoriq_tmu_calibration()
191 		dev_err(dev, "invalid range data.\n");  in qoriq_tmu_calibration()
195 	val = of_property_read_u32_array(np, "fsl,tmu-range", range, len);  in qoriq_tmu_calibration()
197 		dev_err(dev, "failed to read range data.\n");  in qoriq_tmu_calibration()
201 	/* Init temperature range registers */  in qoriq_tmu_calibration()
203 		regmap_write(data->regmap, REGS_TTRnCR(i), range[i]);  in qoriq_tmu_calibration()
205 	calibration = of_get_property(np, "fsl,tmu-calibration", &len);  in qoriq_tmu_calibration()
208 		return -ENODEV;  in qoriq_tmu_calibration()
213 		regmap_write(data->regmap, REGS_TTCFGR, val);  in qoriq_tmu_calibration()
215 		regmap_write(data->regmap, REGS_TSCFGR, val);  in qoriq_tmu_calibration()
224 	regmap_write(data->regmap, REGS_TIER, TIER_DISABLE);  in qoriq_tmu_init_device()
228 	if (data->ver == TMU_VER1) {  in qoriq_tmu_init_device()
229 		regmap_write(data->regmap, REGS_TMTMIR, TMTMIR_DEFAULT);  in qoriq_tmu_init_device()
231 		regmap_write(data->regmap, REGS_V2_TMTMIR, TMTMIR_DEFAULT);  in qoriq_tmu_init_device()
232 		regmap_write(data->regmap, REGS_V2_TEUMR(0), TEUMR0_V2);  in qoriq_tmu_init_device()
236 	regmap_write(data->regmap, REGS_TMR, TMR_DISABLE);  in qoriq_tmu_init_device()
251 	.n_yes_ranges	= ARRAY_SIZE(qoriq_yes_ranges) - 1,
263 	regmap_write(data->regmap, REGS_TMR, TMR_DISABLE);  in qoriq_tmu_action()
264 	clk_disable_unprepare(data->clk);  in qoriq_tmu_action()
272 	struct device_node *np = pdev->dev.of_node;  in qoriq_tmu_probe()
273 	struct device *dev = &pdev->dev;  in qoriq_tmu_probe()
274 	const bool little_endian = of_property_read_bool(np, "little-endian");  in qoriq_tmu_probe()
291 		return -ENOMEM;  in qoriq_tmu_probe()
300 	data->regmap = devm_regmap_init_mmio(dev, base, &regmap_config);  in qoriq_tmu_probe()
301 	ret = PTR_ERR_OR_ZERO(data->regmap);  in qoriq_tmu_probe()
307 	data->clk = devm_clk_get_optional(dev, NULL);  in qoriq_tmu_probe()
308 	if (IS_ERR(data->clk))  in qoriq_tmu_probe()
309 		return PTR_ERR(data->clk);  in qoriq_tmu_probe()
311 	ret = clk_prepare_enable(data->clk);  in qoriq_tmu_probe()
322 	ret = regmap_read(data->regmap, REGS_IPBRR(0), &ver);  in qoriq_tmu_probe()
324 		dev_err(&pdev->dev, "Failed to read IP block version\n");  in qoriq_tmu_probe()
327 	data->ver = (ver >> 8) & 0xff;  in qoriq_tmu_probe()
329 	qoriq_tmu_init_device(data);	/* TMU initialization */  in qoriq_tmu_probe()
331 	ret = qoriq_tmu_calibration(dev, data);	/* TMU calibration */  in qoriq_tmu_probe()
351 	ret = regmap_update_bits(data->regmap, REGS_TMR, TMR_ME, 0);  in qoriq_tmu_suspend()
355 	clk_disable_unprepare(data->clk);  in qoriq_tmu_suspend()
365 	ret = clk_prepare_enable(data->clk);  in qoriq_tmu_resume()
370 	return regmap_update_bits(data->regmap, REGS_TMR, TMR_ME, TMR_ME);  in qoriq_tmu_resume()
377 	{ .compatible = "fsl,qoriq-tmu", },
378 	{ .compatible = "fsl,imx8mq-tmu", },