1 // SPDX-License-Identifier: GPL-2.0-or-later
4  * (C) 2006-2008 by Openmoko, Inc.
23 		return -EINVAL;  in pcf50633_register_irq()
25 	if (WARN_ON(pcf->irq_handler[irq].handler))  in pcf50633_register_irq()
26 		return -EBUSY;  in pcf50633_register_irq()
28 	mutex_lock(&pcf->lock);  in pcf50633_register_irq()
29 	pcf->irq_handler[irq].handler = handler;  in pcf50633_register_irq()
30 	pcf->irq_handler[irq].data = data;  in pcf50633_register_irq()
31 	mutex_unlock(&pcf->lock);  in pcf50633_register_irq()
40 		return -EINVAL;  in pcf50633_free_irq()
42 	mutex_lock(&pcf->lock);  in pcf50633_free_irq()
43 	pcf->irq_handler[irq].handler = NULL;  in pcf50633_free_irq()
44 	mutex_unlock(&pcf->lock);  in pcf50633_free_irq()
61 	mutex_lock(&pcf->lock);  in __pcf50633_irq_mask_set()
64 		pcf->mask_regs[idx] |= bit;  in __pcf50633_irq_mask_set()
66 		pcf->mask_regs[idx] &= ~bit;  in __pcf50633_irq_mask_set()
68 	mutex_unlock(&pcf->lock);  in __pcf50633_irq_mask_set()
75 	dev_dbg(pcf->dev, "Masking IRQ %d\n", irq);  in pcf50633_irq_mask()
83 	dev_dbg(pcf->dev, "Unmasking IRQ %d\n", irq);  in pcf50633_irq_unmask()
96 	return pcf->mask_regs[reg] & bits;  in pcf50633_irq_mask_get()
102 	if (pcf->irq_handler[irq].handler)  in pcf50633_irq_call_handler()
103 		pcf->irq_handler[irq].handler(irq, pcf->irq_handler[irq].data);  in pcf50633_irq_call_handler()
119 		dev_err(pcf->dev, "Error reading INT registers\n");  in pcf50633_irq()
125 		goto out;  in pcf50633_irq()
150 	dev_dbg(pcf->dev, "INT1=0x%02x INT2=0x%02x INT3=0x%02x "  in pcf50633_irq()
156 	if ((pcf_int[0] & PCF50633_INT1_SECOND) && pcf->onkey1s_held) {  in pcf50633_irq()
157 		dev_info(pcf->dev, "ONKEY1S held for %d secs\n",  in pcf50633_irq()
158 							pcf->onkey1s_held);  in pcf50633_irq()
159 		if (pcf->onkey1s_held++ == PCF50633_ONKEY1S_TIMEOUT)  in pcf50633_irq()
160 			if (pcf->pdata->force_shutdown)  in pcf50633_irq()
161 				pcf->pdata->force_shutdown(pcf);  in pcf50633_irq()
165 		dev_info(pcf->dev, "ONKEY1S held\n");  in pcf50633_irq()
166 		pcf->onkey1s_held = 1 ;  in pcf50633_irq()
177 	if ((pcf_int[1] & PCF50633_INT2_ONKEYR) && pcf->onkey1s_held) {  in pcf50633_irq()
178 		pcf->onkey1s_held = 0;  in pcf50633_irq()
181 		if (pcf->mask_regs[0] & PCF50633_INT1_SECOND)  in pcf50633_irq()
187 		if (pcf->mask_regs[1] & PCF50633_INT2_ONKEYR)  in pcf50633_irq()
195 	if (pcf->is_suspended) {  in pcf50633_irq()
196 		pcf->is_suspended = 0;  in pcf50633_irq()
198 		/* Set the resume reason filtering out non resumers */  in pcf50633_irq()
200 			pcf->resume_reason[i] = pcf_int[i] &  in pcf50633_irq()
201 						pcf->pdata->resumers[i];  in pcf50633_irq()
210 		pcf_int[i] &= ~pcf->mask_regs[i];  in pcf50633_irq()
217 out:  in pcf50633_irq()
232 	disable_irq(pcf->irq);  in pcf50633_irq_suspend()
234 	/* Save the masks */  in pcf50633_irq_suspend()
236 				ARRAY_SIZE(pcf->suspend_irq_masks),  in pcf50633_irq_suspend()
237 					pcf->suspend_irq_masks);  in pcf50633_irq_suspend()
239 		dev_err(pcf->dev, "error saving irq masks\n");  in pcf50633_irq_suspend()
240 		goto out;  in pcf50633_irq_suspend()
243 	/* Write wakeup irq masks */  in pcf50633_irq_suspend()
245 		res[i] = ~pcf->pdata->resumers[i];  in pcf50633_irq_suspend()
250 		dev_err(pcf->dev, "error writing wakeup irq masks\n");  in pcf50633_irq_suspend()
251 		goto out;  in pcf50633_irq_suspend()
254 	pcf->is_suspended = 1;  in pcf50633_irq_suspend()
256 out:  in pcf50633_irq_suspend()
266 				ARRAY_SIZE(pcf->suspend_irq_masks),  in pcf50633_irq_resume()
267 					pcf->suspend_irq_masks);  in pcf50633_irq_resume()
269 		dev_err(pcf->dev, "Error restoring saved suspend masks\n");  in pcf50633_irq_resume()
271 	enable_irq(pcf->irq);  in pcf50633_irq_resume()
282 	pcf->irq = irq;  in pcf50633_irq_init()
285 	pcf->mask_regs[0] = 0x80;  in pcf50633_irq_init()
286 	pcf50633_reg_write(pcf, PCF50633_REG_INT1M, pcf->mask_regs[0]);  in pcf50633_irq_init()
297 		dev_err(pcf->dev, "Failed to request IRQ %d\n", ret);  in pcf50633_irq_init()
300 		dev_err(pcf->dev, "IRQ %u cannot be enabled as wake-up source"  in pcf50633_irq_init()
308 	free_irq(pcf->irq, pcf);  in pcf50633_irq_free()