38 static struct omap_mcpdm *mcpdm;  variable
42 	__raw_writel(val, mcpdm->io_base + reg);  in omap_mcpdm_write()
47 	return __raw_readl(mcpdm->io_base + reg);  in omap_mcpdm_read()
52 	dev_dbg(mcpdm->dev, "***********************\n");  in omap_mcpdm_reg_dump()
53 	dev_dbg(mcpdm->dev, "IRQSTATUS_RAW:  0x%04x\n",  in omap_mcpdm_reg_dump()
55 	dev_dbg(mcpdm->dev, "IRQSTATUS:	0x%04x\n",  in omap_mcpdm_reg_dump()
57 	dev_dbg(mcpdm->dev, "IRQENABLE_SET:  0x%04x\n",  in omap_mcpdm_reg_dump()
59 	dev_dbg(mcpdm->dev, "IRQENABLE_CLR:  0x%04x\n",  in omap_mcpdm_reg_dump()
61 	dev_dbg(mcpdm->dev, "IRQWAKE_EN: 0x%04x\n",  in omap_mcpdm_reg_dump()
63 	dev_dbg(mcpdm->dev, "DMAENABLE_SET: 0x%04x\n",  in omap_mcpdm_reg_dump()
65 	dev_dbg(mcpdm->dev, "DMAENABLE_CLR:  0x%04x\n",  in omap_mcpdm_reg_dump()
67 	dev_dbg(mcpdm->dev, "DMAWAKEEN:	0x%04x\n",  in omap_mcpdm_reg_dump()
69 	dev_dbg(mcpdm->dev, "CTRL:	0x%04x\n",  in omap_mcpdm_reg_dump()
71 	dev_dbg(mcpdm->dev, "DN_DATA:  0x%04x\n",  in omap_mcpdm_reg_dump()
73 	dev_dbg(mcpdm->dev, "UP_DATA: 0x%04x\n",  in omap_mcpdm_reg_dump()
75 	dev_dbg(mcpdm->dev, "FIFO_CTRL_DN: 0x%04x\n",  in omap_mcpdm_reg_dump()
77 	dev_dbg(mcpdm->dev, "FIFO_CTRL_UP:  0x%04x\n",  in omap_mcpdm_reg_dump()
79 	dev_dbg(mcpdm->dev, "DN_OFFSET:	0x%04x\n",  in omap_mcpdm_reg_dump()
81 	dev_dbg(mcpdm->dev, "***********************\n");  in omap_mcpdm_reg_dump()
121 		ctrl |= mcpdm->up_channels;  in omap_mcpdm_start()
123 		ctrl |= mcpdm->dn_channels;  in omap_mcpdm_start()
137 		ctrl &= ~mcpdm->up_channels;  in omap_mcpdm_stop()
139 		ctrl &= ~mcpdm->dn_channels;  in omap_mcpdm_stop()
156 	mcpdm->uplink = uplink;  in omap_mcpdm_capture_open()
177 	mcpdm->up_channels = uplink->channels & (PDM_UP_MASK | PDM_STATUS_MASK);  in omap_mcpdm_capture_open()
196 	mcpdm->downlink = downlink;  in omap_mcpdm_playback_open()
217 	mcpdm->dn_channels = downlink->channels & (PDM_DN_MASK | PDM_CMD_MASK);  in omap_mcpdm_playback_open()
243 	mcpdm->up_channels = 0;  in omap_mcpdm_capture_close()
245 	mcpdm->uplink = NULL;  in omap_mcpdm_capture_close()
269 	mcpdm->dn_channels = 0;  in omap_mcpdm_playback_close()
271 	mcpdm->downlink = NULL;  in omap_mcpdm_playback_close()
329 	clk_enable(mcpdm->clk);  in omap_mcpdm_request()
331 	spin_lock(&mcpdm->lock);  in omap_mcpdm_request()
333 	if (!mcpdm->free) {  in omap_mcpdm_request()
334 		dev_err(mcpdm->dev, "McPDM interface is in use\n");  in omap_mcpdm_request()
335 		spin_unlock(&mcpdm->lock);  in omap_mcpdm_request()
339 	mcpdm->free = 0;  in omap_mcpdm_request()
341 	spin_unlock(&mcpdm->lock);  in omap_mcpdm_request()
346 	ret = request_irq(mcpdm->irq, omap_mcpdm_irq_handler,  in omap_mcpdm_request()
347 				0, "McPDM", (void *)mcpdm);  in omap_mcpdm_request()
349 		dev_err(mcpdm->dev, "Request for McPDM IRQ failed\n");  in omap_mcpdm_request()
356 	clk_disable(mcpdm->clk);  in omap_mcpdm_request()
362 	spin_lock(&mcpdm->lock);  in omap_mcpdm_free()
363 	if (mcpdm->free) {  in omap_mcpdm_free()
364 		dev_err(mcpdm->dev, "McPDM interface is already free\n");  in omap_mcpdm_free()
365 		spin_unlock(&mcpdm->lock);  in omap_mcpdm_free()
368 	mcpdm->free = 1;  in omap_mcpdm_free()
369 	spin_unlock(&mcpdm->lock);  in omap_mcpdm_free()
371 	clk_disable(mcpdm->clk);  in omap_mcpdm_free()
373 	free_irq(mcpdm->irq, (void *)mcpdm);  in omap_mcpdm_free()
410 	mcpdm = kzalloc(sizeof(struct omap_mcpdm), GFP_KERNEL);  in omap_mcpdm_probe()
411 	if (!mcpdm) {  in omap_mcpdm_probe()
422 	spin_lock_init(&mcpdm->lock);  in omap_mcpdm_probe()
423 	mcpdm->free = 1;  in omap_mcpdm_probe()
424 	mcpdm->io_base = ioremap(res->start, resource_size(res));  in omap_mcpdm_probe()
425 	if (!mcpdm->io_base) {  in omap_mcpdm_probe()
430 	mcpdm->irq = platform_get_irq(pdev, 0);  in omap_mcpdm_probe()
432 	mcpdm->clk = clk_get(&pdev->dev, "pdm_ck");  in omap_mcpdm_probe()
433 	if (IS_ERR(mcpdm->clk)) {  in omap_mcpdm_probe()
434 		ret = PTR_ERR(mcpdm->clk);  in omap_mcpdm_probe()
439 	mcpdm->dev = &pdev->dev;  in omap_mcpdm_probe()
440 	platform_set_drvdata(pdev, mcpdm);  in omap_mcpdm_probe()
445 	iounmap(mcpdm->io_base);  in omap_mcpdm_probe()
447 	kfree(mcpdm);  in omap_mcpdm_probe()