3  * Texas Instruments DSPS platforms "glue layer"
7  * Based on the am35x "glue layer" code.
100  * DSPS glue structure.
134 static void dsps_mod_timer(struct dsps_glue *glue, int wait_ms)  in dsps_mod_timer()  argument
136 	struct musb *musb = platform_get_drvdata(glue->musb);  in dsps_mod_timer()
140 		wait = msecs_to_jiffies(glue->wrp->poll_timeout);  in dsps_mod_timer()
150 static void dsps_mod_timer_optional(struct dsps_glue *glue)  in dsps_mod_timer_optional()  argument
152 	if (glue->vbus_irq)  in dsps_mod_timer_optional()
155 	dsps_mod_timer(glue, -1);  in dsps_mod_timer_optional()
172 	struct dsps_glue *glue = platform_get_drvdata(pdev);  in dsps_musb_enable()  local
173 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_enable()
189 		dsps_mod_timer(glue, -1);  in dsps_musb_enable()
199 	struct dsps_glue *glue = platform_get_drvdata(pdev);  in dsps_musb_disable()  local
200 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_disable()
214 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_check_status()  local
215 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_check_status()
219 	if (glue->vbus_irq)  in dsps_check_status()
234 			dsps_mod_timer_optional(glue);  in dsps_check_status()
242 			dsps_mod_timer_optional(glue);  in dsps_check_status()
251 		if (!glue->vbus_irq) {  in dsps_check_status()
267 		dsps_mod_timer_optional(glue);  in dsps_check_status()
308 	struct dsps_glue *glue = dev_get_drvdata(musb->controller->parent);  in dsps_musb_clear_ep_rxintr()  local
309 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_clear_ep_rxintr()
321 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_interrupt()  local
322 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_interrupt()
370 			dsps_mod_timer_optional(glue);  in dsps_interrupt()
375 			dsps_mod_timer_optional(glue);  in dsps_interrupt()
398 		dsps_mod_timer_optional(glue);  in dsps_interrupt()
410 static int dsps_musb_dbg_init(struct musb *musb, struct dsps_glue *glue)  in dsps_musb_dbg_init()  argument
417 	glue->dbgfs_root = root;  in dsps_musb_dbg_init()
419 	glue->regset.regs = dsps_musb_regs;  in dsps_musb_dbg_init()
420 	glue->regset.nregs = ARRAY_SIZE(dsps_musb_regs);  in dsps_musb_dbg_init()
421 	glue->regset.base = musb->ctrl_base;  in dsps_musb_dbg_init()
423 	debugfs_create_regset32("regdump", S_IRUGO, root, &glue->regset);  in dsps_musb_dbg_init()
430 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_init()  local
432 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_init()
489 		glue->sw_babble_enabled = true;  in dsps_musb_init()
494 	dsps_mod_timer(glue, -1);  in dsps_musb_init()
496 	return dsps_musb_dbg_init(musb, glue);  in dsps_musb_init()
502 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_exit()  local
507 	debugfs_remove_recursive(glue->dbgfs_root);  in dsps_musb_exit()
515 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_set_mode()  local
516 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_set_mode()
552 		dev_err(glue->dev, "unsupported mode %d\n", mode);  in dsps_musb_set_mode()
613 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_recover()  local
616 	if (glue->sw_babble_enabled)  in dsps_musb_recover()
646 	struct dsps_glue *glue = dev_get_drvdata(musb->controller->parent);  in dsps_dma_controller_callback()  local
647 	void __iomem *usbss_base = glue->usbss_base;  in dsps_dma_controller_callback()
659 	struct dsps_glue *glue = dev_get_drvdata(musb->controller->parent);  in dsps_dma_controller_create()  local
660 	void __iomem *usbss_base = glue->usbss_base;  in dsps_dma_controller_create()
673 static void dsps_dma_controller_suspend(struct dsps_glue *glue)  in dsps_dma_controller_suspend()  argument
675 	void __iomem *usbss_base = glue->usbss_base;  in dsps_dma_controller_suspend()
680 static void dsps_dma_controller_resume(struct dsps_glue *glue)  in dsps_dma_controller_resume()  argument
682 	void __iomem *usbss_base = glue->usbss_base;  in dsps_dma_controller_resume()
689 static void dsps_dma_controller_suspend(struct dsps_glue *glue) {}  in dsps_dma_controller_suspend()  argument
690 static void dsps_dma_controller_resume(struct dsps_glue *glue) {}  in dsps_dma_controller_resume()  argument
724 static int dsps_create_musb_pdev(struct dsps_glue *glue,  in dsps_create_musb_pdev()  argument
764 	glue->musb = musb;  in dsps_create_musb_pdev()
825 	struct dsps_glue *glue = priv;  in dsps_vbus_threaded_irq()  local
826 	struct musb *musb = platform_get_drvdata(glue->musb);  in dsps_vbus_threaded_irq()
831 	dev_dbg(glue->dev, "VBUS interrupt\n");  in dsps_vbus_threaded_irq()
832 	dsps_mod_timer(glue, 0);  in dsps_vbus_threaded_irq()
838 					struct dsps_glue *glue)  in dsps_setup_optional_vbus_irq()  argument
842 	glue->vbus_irq = platform_get_irq_byname(pdev, "vbus");  in dsps_setup_optional_vbus_irq()
843 	if (glue->vbus_irq == -EPROBE_DEFER)  in dsps_setup_optional_vbus_irq()
846 	if (glue->vbus_irq <= 0) {  in dsps_setup_optional_vbus_irq()
847 		glue->vbus_irq = 0;  in dsps_setup_optional_vbus_irq()
851 	error = devm_request_threaded_irq(glue->dev, glue->vbus_irq,  in dsps_setup_optional_vbus_irq()
854 					  "vbus", glue);  in dsps_setup_optional_vbus_irq()
856 		glue->vbus_irq = 0;  in dsps_setup_optional_vbus_irq()
859 	dev_dbg(glue->dev, "VBUS irq %i configured\n", glue->vbus_irq);  in dsps_setup_optional_vbus_irq()
868 	struct dsps_glue *glue;  in dsps_probe()  local
884 	/* allocate glue */  in dsps_probe()
885 	glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);  in dsps_probe()
886 	if (!glue)  in dsps_probe()
889 	glue->dev = &pdev->dev;  in dsps_probe()
890 	glue->wrp = wrp;  in dsps_probe()
891 	glue->usbss_base = of_iomap(pdev->dev.parent->of_node, 0);  in dsps_probe()
892 	if (!glue->usbss_base)  in dsps_probe()
896 		ret = dsps_setup_optional_vbus_irq(pdev, glue);  in dsps_probe()
901 	platform_set_drvdata(pdev, glue);  in dsps_probe()
903 	ret = dsps_create_musb_pdev(glue, pdev);  in dsps_probe()
912 	iounmap(glue->usbss_base);  in dsps_probe()
918 	struct dsps_glue *glue = platform_get_drvdata(pdev);  in dsps_remove()  local
920 	platform_device_unregister(glue->musb);  in dsps_remove()
923 	iounmap(glue->usbss_base);  in dsps_remove()
971 	struct dsps_glue *glue = dev_get_drvdata(dev);  in dsps_suspend()  local
972 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_suspend()
973 	struct musb *musb = platform_get_drvdata(glue->musb);  in dsps_suspend()
990 	glue->context.control = musb_readl(mbase, wrp->control);  in dsps_suspend()
991 	glue->context.epintr = musb_readl(mbase, wrp->epintr_set);  in dsps_suspend()
992 	glue->context.coreintr = musb_readl(mbase, wrp->coreintr_set);  in dsps_suspend()
993 	glue->context.phy_utmi = musb_readl(mbase, wrp->phy_utmi);  in dsps_suspend()
994 	glue->context.mode = musb_readl(mbase, wrp->mode);  in dsps_suspend()
995 	glue->context.tx_mode = musb_readl(mbase, wrp->tx_mode);  in dsps_suspend()
996 	glue->context.rx_mode = musb_readl(mbase, wrp->rx_mode);  in dsps_suspend()
998 	dsps_dma_controller_suspend(glue);  in dsps_suspend()
1005 	struct dsps_glue *glue = dev_get_drvdata(dev);  in dsps_resume()  local
1006 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_resume()
1007 	struct musb *musb = platform_get_drvdata(glue->musb);  in dsps_resume()
1013 	dsps_dma_controller_resume(glue);  in dsps_resume()
1016 	musb_writel(mbase, wrp->control, glue->context.control);  in dsps_resume()
1017 	musb_writel(mbase, wrp->epintr_set, glue->context.epintr);  in dsps_resume()
1018 	musb_writel(mbase, wrp->coreintr_set, glue->context.coreintr);  in dsps_resume()
1019 	musb_writel(mbase, wrp->phy_utmi, glue->context.phy_utmi);  in dsps_resume()
1020 	musb_writel(mbase, wrp->mode, glue->context.mode);  in dsps_resume()
1021 	musb_writel(mbase, wrp->tx_mode, glue->context.tx_mode);  in dsps_resume()
1022 	musb_writel(mbase, wrp->rx_mode, glue->context.rx_mode);  in dsps_resume()
1025 		dsps_mod_timer(glue, -1);  in dsps_resume()
1045 MODULE_DESCRIPTION("TI DSPS MUSB Glue Layer");