1 // SPDX-License-Identifier: GPL-2.0-only
3  * Motorola CPCAP PMIC core driver
19 #include <linux/mfd/motorola-cpcap.h>
43 		return -EINVAL;  in cpcap_sense_irq()
57 	return cpcap_sense_irq(regmap, virq - irq_base);  in cpcap_sense_virq()
61 static int cpcap_check_revision(struct cpcap_ddata *cpcap)  in cpcap_check_revision()  argument
66 	ret = cpcap_get_vendor(&cpcap->spi->dev, cpcap->regmap, &vendor);  in cpcap_check_revision()
70 	ret = cpcap_get_revision(&cpcap->spi->dev, cpcap->regmap, &rev);  in cpcap_check_revision()
74 	dev_info(&cpcap->spi->dev, "CPCAP vendor: %s rev: %i.%i (%x)\n",  in cpcap_check_revision()
80 		dev_info(&cpcap->spi->dev,  in cpcap_check_revision()
81 			 "Please add old CPCAP revision support as needed\n");  in cpcap_check_revision()
82 		return -ENODEV;  in cpcap_check_revision()
90  * irq chip is for register banks 1 - 4 and is available for drivers to use.
94 		.name = "cpcap-m2",
103 		.name = "cpcap-m2",
112 		.name = "cpcap1-4",
122 static void cpcap_init_one_regmap_irq(struct cpcap_ddata *cpcap,  in cpcap_init_one_regmap_irq()  argument
129 	reg_offset = irq - irq_base;  in cpcap_init_one_regmap_irq()
130 	reg_offset /= cpcap->regmap_conf->val_bits;  in cpcap_init_one_regmap_irq()
131 	reg_offset *= cpcap->regmap_conf->reg_stride;  in cpcap_init_one_regmap_irq()
133 	bit = irq % cpcap->regmap_conf->val_bits;  in cpcap_init_one_regmap_irq()
136 	rirq->reg_offset = reg_offset;  in cpcap_init_one_regmap_irq()
137 	rirq->mask = mask;  in cpcap_init_one_regmap_irq()
140 static int cpcap_init_irq_chip(struct cpcap_ddata *cpcap, int irq_chip,  in cpcap_init_irq_chip()  argument
147 		struct regmap_irq *rirq = &cpcap->irqs[i];  in cpcap_init_irq_chip()
149 		cpcap_init_one_regmap_irq(cpcap, rirq, irq_start, i);  in cpcap_init_irq_chip()
151 	chip->irqs = &cpcap->irqs[irq_start];  in cpcap_init_irq_chip()
152 	chip->num_irqs = nr_irqs;  in cpcap_init_irq_chip()
153 	chip->irq_drv_data = cpcap;  in cpcap_init_irq_chip()
155 	ret = devm_regmap_add_irq_chip(&cpcap->spi->dev, cpcap->regmap,  in cpcap_init_irq_chip()
156 				       cpcap->spi->irq,  in cpcap_init_irq_chip()
157 				       irq_get_trigger_type(cpcap->spi->irq) |  in cpcap_init_irq_chip()
158 				       IRQF_SHARED, -1,  in cpcap_init_irq_chip()
159 				       chip, &cpcap->irqdata[irq_chip]);  in cpcap_init_irq_chip()
161 		dev_err(&cpcap->spi->dev, "could not add irq chip %i: %i\n",  in cpcap_init_irq_chip()
169 static int cpcap_init_irq(struct cpcap_ddata *cpcap)  in cpcap_init_irq()  argument
173 	cpcap->irqs = devm_kzalloc(&cpcap->spi->dev,  in cpcap_init_irq()
174 				   array3_size(sizeof(*cpcap->irqs),  in cpcap_init_irq()
176 					       cpcap->regmap_conf->val_bits),  in cpcap_init_irq()
178 	if (!cpcap->irqs)  in cpcap_init_irq()
179 		return -ENOMEM;  in cpcap_init_irq()
181 	ret = cpcap_init_irq_chip(cpcap, 0, 0, 16);  in cpcap_init_irq()
185 	ret = cpcap_init_irq_chip(cpcap, 1, 16, 16);  in cpcap_init_irq()
189 	ret = cpcap_init_irq_chip(cpcap, 2, 32, 64);  in cpcap_init_irq()
193 	enable_irq_wake(cpcap->spi->irq);  in cpcap_init_irq()
199 	{ .compatible = "motorola,cpcap", },
206 	{ .name = "cpcap", },
228 	disable_irq(spi->irq);  in cpcap_suspend()
237 	enable_irq(spi->irq);  in cpcap_resume()
247 		.of_compatible = "motorola,mapphone-cpcap-adc",
250 		.of_compatible = "motorola,cpcap-battery",
252 		.name          = "cpcap-charger",
253 		.of_compatible = "motorola,mapphone-cpcap-charger",
255 		.name          = "cpcap-regulator",
256 		.of_compatible = "motorola,mapphone-cpcap-regulator",
258 		.name          = "cpcap-rtc",
259 		.of_compatible = "motorola,cpcap-rtc",
261 		.name          = "cpcap-pwrbutton",
262 		.of_compatible = "motorola,cpcap-pwrbutton",
264 		.name          = "cpcap-usb-phy",
265 		.of_compatible = "motorola,mapphone-cpcap-usb-phy",
267 		.name          = "cpcap-led",
269 		.of_compatible = "motorola,cpcap-led-red",
271 		.name          = "cpcap-led",
273 		.of_compatible = "motorola,cpcap-led-green",
275 		.name          = "cpcap-led",
277 		.of_compatible = "motorola,cpcap-led-blue",
279 		.name          = "cpcap-led",
281 		.of_compatible = "motorola,cpcap-led-adl",
283 		.name          = "cpcap-led",
285 		.of_compatible = "motorola,cpcap-led-cp",
287 		.name          = "cpcap-codec",
293 	struct cpcap_ddata *cpcap;  in cpcap_probe()  local
296 	cpcap = devm_kzalloc(&spi->dev, sizeof(*cpcap), GFP_KERNEL);  in cpcap_probe()
297 	if (!cpcap)  in cpcap_probe()
298 		return -ENOMEM;  in cpcap_probe()
300 	cpcap->spi = spi;  in cpcap_probe()
301 	spi_set_drvdata(spi, cpcap);  in cpcap_probe()
303 	spi->bits_per_word = 16;  in cpcap_probe()
304 	spi->mode = SPI_MODE_0 | SPI_CS_HIGH;  in cpcap_probe()
310 	cpcap->regmap_conf = &cpcap_regmap_config;  in cpcap_probe()
311 	cpcap->regmap = devm_regmap_init_spi(spi, &cpcap_regmap_config);  in cpcap_probe()
312 	if (IS_ERR(cpcap->regmap)) {  in cpcap_probe()
313 		ret = PTR_ERR(cpcap->regmap);  in cpcap_probe()
314 		dev_err(&cpcap->spi->dev, "Failed to initialize regmap: %d\n",  in cpcap_probe()
320 	ret = cpcap_check_revision(cpcap);  in cpcap_probe()
322 		dev_err(&cpcap->spi->dev, "Failed to detect CPCAP: %i\n", ret);  in cpcap_probe()
326 	ret = cpcap_init_irq(cpcap);  in cpcap_probe()
330 	/* Parent SPI controller uses DMA, CPCAP and child devices do not */  in cpcap_probe()
331 	spi->dev.coherent_dma_mask = 0;  in cpcap_probe()
332 	spi->dev.dma_mask = &spi->dev.coherent_dma_mask;  in cpcap_probe()
334 	return devm_mfd_add_devices(&spi->dev, 0, cpcap_mfd_devices,  in cpcap_probe()
340 		.name = "cpcap-core",
349 MODULE_ALIAS("platform:cpcap");
350 MODULE_DESCRIPTION("CPCAP driver");