14 #include <dt-bindings/mailbox/qcom-ipcc.h>
16 /* IPCC Register offsets */
44  * @base:		Base address of the IPCC frame associated to APSS
76 	struct qcom_ipcc *ipcc = data;  in qcom_ipcc_irq_fn()  local
81 		hwirq = readl(ipcc->base + IPCC_REG_RECV_ID);  in qcom_ipcc_irq_fn()
85 		virq = irq_find_mapping(ipcc->irq_domain, hwirq);  in qcom_ipcc_irq_fn()
86 		writel(hwirq, ipcc->base + IPCC_REG_RECV_SIGNAL_CLEAR);  in qcom_ipcc_irq_fn()
95 	struct qcom_ipcc *ipcc = irq_data_get_irq_chip_data(irqd);  in qcom_ipcc_mask_irq()  local
98 	writel(hwirq, ipcc->base + IPCC_REG_RECV_SIGNAL_DISABLE);  in qcom_ipcc_mask_irq()
103 	struct qcom_ipcc *ipcc = irq_data_get_irq_chip_data(irqd);  in qcom_ipcc_unmask_irq()  local
106 	writel(hwirq, ipcc->base + IPCC_REG_RECV_SIGNAL_ENABLE);  in qcom_ipcc_unmask_irq()
110 	.name = "ipcc",
119 	struct qcom_ipcc *ipcc = d->host_data;  in qcom_ipcc_domain_map()  local
122 	irq_set_chip_data(irq, ipcc);  in qcom_ipcc_domain_map()
150 	struct qcom_ipcc *ipcc = to_qcom_ipcc(chan->mbox);  in qcom_ipcc_mbox_send_data()  local
155 	writel(hwirq, ipcc->base + IPCC_REG_SEND_ID);  in qcom_ipcc_mbox_send_data()
168 	struct qcom_ipcc *ipcc = to_qcom_ipcc(mbox);  in qcom_ipcc_mbox_xlate()  local
174 	dev = ipcc->dev;  in qcom_ipcc_mbox_xlate()
180 		chan = &ipcc->chans[chan_id];  in qcom_ipcc_mbox_xlate()
209 static int qcom_ipcc_setup_mbox(struct qcom_ipcc *ipcc,  in qcom_ipcc_setup_mbox()  argument
215 	struct device *dev = ipcc->dev;  in qcom_ipcc_setup_mbox()
222 	ipcc->num_chans = 0;  in qcom_ipcc_setup_mbox()
233 				ipcc->num_chans++;  in qcom_ipcc_setup_mbox()
238 	if (!ipcc->num_chans)  in qcom_ipcc_setup_mbox()
241 	ipcc->chans = devm_kcalloc(dev, ipcc->num_chans,  in qcom_ipcc_setup_mbox()
243 	if (!ipcc->chans)  in qcom_ipcc_setup_mbox()
246 	mbox = &ipcc->mbox;  in qcom_ipcc_setup_mbox()
248 	mbox->num_chans = ipcc->num_chans;  in qcom_ipcc_setup_mbox()
249 	mbox->chans = ipcc->chans;  in qcom_ipcc_setup_mbox()
260 	struct qcom_ipcc *ipcc = dev_get_drvdata(dev);  in qcom_ipcc_pm_resume()  local
264 	hwirq = readl(ipcc->base + IPCC_REG_RECV_ID);  in qcom_ipcc_pm_resume()
268 	virq = irq_find_mapping(ipcc->irq_domain, hwirq);  in qcom_ipcc_pm_resume()
278 	struct qcom_ipcc *ipcc;  in qcom_ipcc_probe()  local
284 	ipcc = devm_kzalloc(&pdev->dev, sizeof(*ipcc), GFP_KERNEL);  in qcom_ipcc_probe()
285 	if (!ipcc)  in qcom_ipcc_probe()
288 	ipcc->dev = &pdev->dev;  in qcom_ipcc_probe()
290 	ipcc->base = devm_platform_ioremap_resource(pdev, 0);  in qcom_ipcc_probe()
291 	if (IS_ERR(ipcc->base))  in qcom_ipcc_probe()
292 		return PTR_ERR(ipcc->base);  in qcom_ipcc_probe()
295 	 * It is possible that boot firmware is using the same IPCC instance  in qcom_ipcc_probe()
301 	config_value = readl(ipcc->base + IPCC_REG_CONFIG);  in qcom_ipcc_probe()
304 		writel(config_value, ipcc->base + IPCC_REG_CONFIG);  in qcom_ipcc_probe()
307 	ipcc->irq = platform_get_irq(pdev, 0);  in qcom_ipcc_probe()
308 	if (ipcc->irq < 0)  in qcom_ipcc_probe()
309 		return ipcc->irq;  in qcom_ipcc_probe()
315 	ipcc->irq_domain = irq_domain_add_tree(pdev->dev.of_node,  in qcom_ipcc_probe()
316 					       &qcom_ipcc_irq_ops, ipcc);  in qcom_ipcc_probe()
317 	if (!ipcc->irq_domain)  in qcom_ipcc_probe()
320 	ret = qcom_ipcc_setup_mbox(ipcc, pdev->dev.of_node);  in qcom_ipcc_probe()
324 	ret = devm_request_irq(&pdev->dev, ipcc->irq, qcom_ipcc_irq_fn,  in qcom_ipcc_probe()
326 			       IRQF_NO_THREAD, name, ipcc);  in qcom_ipcc_probe()
332 	platform_set_drvdata(pdev, ipcc);  in qcom_ipcc_probe()
337 	if (ipcc->num_chans)  in qcom_ipcc_probe()
338 		mbox_controller_unregister(&ipcc->mbox);  in qcom_ipcc_probe()
340 	irq_domain_remove(ipcc->irq_domain);  in qcom_ipcc_probe()
347 	struct qcom_ipcc *ipcc = platform_get_drvdata(pdev);  in qcom_ipcc_remove()  local
349 	disable_irq_wake(ipcc->irq);  in qcom_ipcc_remove()
350 	irq_domain_remove(ipcc->irq_domain);  in qcom_ipcc_remove()
354 	{ .compatible = "qcom,ipcc"},
367 		.name = "qcom-ipcc",
382 MODULE_DESCRIPTION("Qualcomm Technologies, Inc. IPCC driver");