net/ipa/ipa_interrupt.c

28 #include "ipa.h"
37  * @ipa:		IPA pointer
42 	struct ipa *ipa;
50 	struct ipa *ipa = interrupt->ipa;
54 	unit_count = DIV_ROUND_UP(ipa->endpoint_count, 32);
59 		reg = ipa_reg(ipa, IRQ_SUSPEND_INFO);
60 		val = ioread32(ipa->reg_virt + reg_n_offset(reg, unit));
63 		if (!val || ipa->version == IPA_VERSION_3_0)
66 		reg = ipa_reg(ipa, IRQ_SUSPEND_CLR);
67 		iowrite32(val, ipa->reg_virt + reg_n_offset(reg, unit));
74 	struct ipa *ipa = interrupt->ipa;
79 	reg = ipa_reg(ipa, IPA_IRQ_CLR);
88 		iowrite32(mask, ipa->reg_virt + offset);
89 		ipa_uc_interrupt_handler(ipa, irq_id);
102 		iowrite32(mask, ipa->reg_virt + offset);
111 	struct ipa *ipa = interrupt->ipa;
113 	struct device *dev = ipa->dev;
128 	reg = ipa_reg(ipa, IPA_IRQ_STTS);
130 	pending = ioread32(ipa->reg_virt + offset);
139 		pending = ioread32(ipa->reg_virt + offset);
146 		reg = ipa_reg(ipa, IPA_IRQ_CLR);
147 		iowrite32(pending, ipa->reg_virt + reg_offset(reg));
156 static void ipa_interrupt_enabled_update(struct ipa *ipa)
158 	const struct reg *reg = ipa_reg(ipa, IPA_IRQ_EN);
160 	iowrite32(ipa->interrupt->enabled, ipa->reg_virt + reg_offset(reg));
164 void ipa_interrupt_enable(struct ipa *ipa, enum ipa_irq_id ipa_irq)
167 	ipa->interrupt->enabled |= BIT(ipa_irq);
168 	ipa_interrupt_enabled_update(ipa);
172 void ipa_interrupt_disable(struct ipa *ipa, enum ipa_irq_id ipa_irq)
175 	ipa->interrupt->enabled &= ~BIT(ipa_irq);
176 	ipa_interrupt_enabled_update(ipa);
179 void ipa_interrupt_irq_disable(struct ipa *ipa)
181 	disable_irq(ipa->interrupt->irq);
184 void ipa_interrupt_irq_enable(struct ipa *ipa)
186 	enable_irq(ipa->interrupt->irq);
193 	struct ipa *ipa = interrupt->ipa;
200 	WARN_ON(!test_bit(endpoint_id, ipa->available));
203 	if (ipa->version == IPA_VERSION_3_0)
206 	reg = ipa_reg(ipa, IRQ_SUSPEND_EN);
208 	val = ioread32(ipa->reg_virt + offset);
215 	iowrite32(val, ipa->reg_virt + offset);
239 int ipa_interrupt_config(struct ipa *ipa)
241 	struct ipa_interrupt *interrupt = ipa->interrupt;
243 	struct device *dev = ipa->dev;
247 	interrupt->ipa = ipa;
250 	reg = ipa_reg(ipa, IPA_IRQ_EN);
251 	iowrite32(0, ipa->reg_virt + reg_offset(reg));
254 				   "ipa", interrupt);
256 		dev_err(dev, "error %d requesting \"ipa\" IRQ\n", ret);
262 		dev_err(dev, "error %d registering \"ipa\" IRQ as wakeirq\n",
267 	ipa->interrupt = interrupt;
280 void ipa_interrupt_deconfig(struct ipa *ipa)
282 	struct ipa_interrupt *interrupt = ipa->interrupt;
283 	struct device *dev = ipa->dev;
285 	ipa->interrupt = NULL;
298 	irq = platform_get_irq_byname(pdev, "ipa");
300 		dev_err(dev, "DT error %d getting \"ipa\" IRQ property\n", irq);