3  * Texas Instruments DSPS platforms "glue layer"
7  * Based on the am35x "glue layer" code.
101  * DSPS glue structure.
135 static void dsps_mod_timer(struct dsps_glue *glue, int wait_ms)  in dsps_mod_timer()  argument
137 	struct musb *musb = platform_get_drvdata(glue->musb);  in dsps_mod_timer()
141 		wait = msecs_to_jiffies(glue->wrp->poll_timeout);  in dsps_mod_timer()
151 static void dsps_mod_timer_optional(struct dsps_glue *glue)  in dsps_mod_timer_optional()  argument
153 	if (glue->vbus_irq)  in dsps_mod_timer_optional()
156 	dsps_mod_timer(glue, -1);  in dsps_mod_timer_optional()
172 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  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()
198 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_disable()  local
199 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_disable()
213 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_check_status()  local
214 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_check_status()
218 	if (glue->vbus_irq)  in dsps_check_status()
233 			dsps_mod_timer_optional(glue);  in dsps_check_status()
241 			dsps_mod_timer_optional(glue);  in dsps_check_status()
250 		if (!glue->vbus_irq) {  in dsps_check_status()
266 		dsps_mod_timer_optional(glue);  in dsps_check_status()
307 	struct dsps_glue *glue = dev_get_drvdata(musb->controller->parent);  in dsps_musb_clear_ep_rxintr()  local
308 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_clear_ep_rxintr()
320 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_interrupt()  local
321 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_interrupt()
369 			dsps_mod_timer_optional(glue);  in dsps_interrupt()
374 			dsps_mod_timer_optional(glue);  in dsps_interrupt()
397 		dsps_mod_timer_optional(glue);  in dsps_interrupt()
409 static int dsps_musb_dbg_init(struct musb *musb, struct dsps_glue *glue)  in dsps_musb_dbg_init()  argument
416 	glue->dbgfs_root = root;  in dsps_musb_dbg_init()
418 	glue->regset.regs = dsps_musb_regs;  in dsps_musb_dbg_init()
419 	glue->regset.nregs = ARRAY_SIZE(dsps_musb_regs);  in dsps_musb_dbg_init()
420 	glue->regset.base = musb->ctrl_base;  in dsps_musb_dbg_init()
422 	debugfs_create_regset32("regdump", S_IRUGO, root, &glue->regset);  in dsps_musb_dbg_init()
429 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_init()  local
431 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_init()
488 		glue->sw_babble_enabled = true;  in dsps_musb_init()
493 	dsps_mod_timer(glue, -1);  in dsps_musb_init()
495 	return dsps_musb_dbg_init(musb, glue);  in dsps_musb_init()
501 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_exit()  local
506 	debugfs_remove_recursive(glue->dbgfs_root);  in dsps_musb_exit()
514 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_set_mode()  local
515 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_set_mode()
551 		dev_err(glue->dev, "unsupported mode %d\n", mode);  in dsps_musb_set_mode()
612 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_recover()  local
615 	if (glue->sw_babble_enabled)  in dsps_musb_recover()
645 	struct dsps_glue *glue = dev_get_drvdata(musb->controller->parent);  in dsps_dma_controller_callback()  local
646 	void __iomem *usbss_base = glue->usbss_base;  in dsps_dma_controller_callback()
658 	struct dsps_glue *glue = dev_get_drvdata(musb->controller->parent);  in dsps_dma_controller_create()  local
659 	void __iomem *usbss_base = glue->usbss_base;  in dsps_dma_controller_create()
672 static void dsps_dma_controller_suspend(struct dsps_glue *glue)  in dsps_dma_controller_suspend()  argument
674 	void __iomem *usbss_base = glue->usbss_base;  in dsps_dma_controller_suspend()
679 static void dsps_dma_controller_resume(struct dsps_glue *glue)  in dsps_dma_controller_resume()  argument
681 	void __iomem *usbss_base = glue->usbss_base;  in dsps_dma_controller_resume()
688 static void dsps_dma_controller_suspend(struct dsps_glue *glue) {}  in dsps_dma_controller_suspend()  argument
689 static void dsps_dma_controller_resume(struct dsps_glue *glue) {}  in dsps_dma_controller_resume()  argument
723 static int dsps_create_musb_pdev(struct dsps_glue *glue,  in dsps_create_musb_pdev()  argument
765 	glue->musb = musb;  in dsps_create_musb_pdev()
826 	struct dsps_glue *glue = priv;  in dsps_vbus_threaded_irq()  local
827 	struct musb *musb = platform_get_drvdata(glue->musb);  in dsps_vbus_threaded_irq()
832 	dev_dbg(glue->dev, "VBUS interrupt\n");  in dsps_vbus_threaded_irq()
833 	dsps_mod_timer(glue, 0);  in dsps_vbus_threaded_irq()
839 					struct dsps_glue *glue)  in dsps_setup_optional_vbus_irq()  argument
843 	glue->vbus_irq = platform_get_irq_byname(pdev, "vbus");  in dsps_setup_optional_vbus_irq()
844 	if (glue->vbus_irq == -EPROBE_DEFER)  in dsps_setup_optional_vbus_irq()
847 	if (glue->vbus_irq <= 0) {  in dsps_setup_optional_vbus_irq()
848 		glue->vbus_irq = 0;  in dsps_setup_optional_vbus_irq()
852 	error = devm_request_threaded_irq(glue->dev, glue->vbus_irq,  in dsps_setup_optional_vbus_irq()
855 					  "vbus", glue);  in dsps_setup_optional_vbus_irq()
857 		glue->vbus_irq = 0;  in dsps_setup_optional_vbus_irq()
860 	dev_dbg(glue->dev, "VBUS irq %i configured\n", glue->vbus_irq);  in dsps_setup_optional_vbus_irq()
869 	struct dsps_glue *glue;  in dsps_probe()  local
885 	/* allocate glue */  in dsps_probe()
886 	glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);  in dsps_probe()
887 	if (!glue)  in dsps_probe()
890 	glue->dev = &pdev->dev;  in dsps_probe()
891 	glue->wrp = wrp;  in dsps_probe()
892 	glue->usbss_base = of_iomap(pdev->dev.parent->of_node, 0);  in dsps_probe()
893 	if (!glue->usbss_base)  in dsps_probe()
896 	platform_set_drvdata(pdev, glue);  in dsps_probe()
898 	ret = dsps_create_musb_pdev(glue, pdev);  in dsps_probe()
903 		ret = dsps_setup_optional_vbus_irq(pdev, glue);  in dsps_probe()
911 	platform_device_unregister(glue->musb);  in dsps_probe()
914 	iounmap(glue->usbss_base);  in dsps_probe()
920 	struct dsps_glue *glue = platform_get_drvdata(pdev);  in dsps_remove()  local
922 	platform_device_unregister(glue->musb);  in dsps_remove()
925 	iounmap(glue->usbss_base);  in dsps_remove()
973 	struct dsps_glue *glue = dev_get_drvdata(dev);  in dsps_suspend()  local
974 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_suspend()
975 	struct musb *musb = platform_get_drvdata(glue->musb);  in dsps_suspend()
992 	glue->context.control = musb_readl(mbase, wrp->control);  in dsps_suspend()
993 	glue->context.epintr = musb_readl(mbase, wrp->epintr_set);  in dsps_suspend()
994 	glue->context.coreintr = musb_readl(mbase, wrp->coreintr_set);  in dsps_suspend()
995 	glue->context.phy_utmi = musb_readl(mbase, wrp->phy_utmi);  in dsps_suspend()
996 	glue->context.mode = musb_readl(mbase, wrp->mode);  in dsps_suspend()
997 	glue->context.tx_mode = musb_readl(mbase, wrp->tx_mode);  in dsps_suspend()
998 	glue->context.rx_mode = musb_readl(mbase, wrp->rx_mode);  in dsps_suspend()
1000 	dsps_dma_controller_suspend(glue);  in dsps_suspend()
1007 	struct dsps_glue *glue = dev_get_drvdata(dev);  in dsps_resume()  local
1008 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_resume()
1009 	struct musb *musb = platform_get_drvdata(glue->musb);  in dsps_resume()
1015 	dsps_dma_controller_resume(glue);  in dsps_resume()
1018 	musb_writel(mbase, wrp->control, glue->context.control);  in dsps_resume()
1019 	musb_writel(mbase, wrp->epintr_set, glue->context.epintr);  in dsps_resume()
1020 	musb_writel(mbase, wrp->coreintr_set, glue->context.coreintr);  in dsps_resume()
1021 	musb_writel(mbase, wrp->phy_utmi, glue->context.phy_utmi);  in dsps_resume()
1022 	musb_writel(mbase, wrp->mode, glue->context.mode);  in dsps_resume()
1023 	musb_writel(mbase, wrp->tx_mode, glue->context.tx_mode);  in dsps_resume()
1024 	musb_writel(mbase, wrp->rx_mode, glue->context.rx_mode);  in dsps_resume()
1027 		dsps_mod_timer(glue, -1);  in dsps_resume()
1047 MODULE_DESCRIPTION("TI DSPS MUSB Glue Layer");