3  * Texas Instruments DSPS platforms "glue layer"
7  * Based on the am35x "glue layer" code.
99  * DSPS glue structure.
133 static void dsps_mod_timer(struct dsps_glue *glue, int wait_ms)  in dsps_mod_timer()  argument
135 	struct musb *musb = platform_get_drvdata(glue->musb);  in dsps_mod_timer()
139 		wait = msecs_to_jiffies(glue->wrp->poll_timeout);  in dsps_mod_timer()
149 static void dsps_mod_timer_optional(struct dsps_glue *glue)  in dsps_mod_timer_optional()  argument
151 	if (glue->vbus_irq)  in dsps_mod_timer_optional()
154 	dsps_mod_timer(glue, -1);  in dsps_mod_timer_optional()
170 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_enable()  local
171 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_enable()
187 		dsps_mod_timer(glue, -1);  in dsps_musb_enable()
196 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_disable()  local
197 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_disable()
211 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_check_status()  local
212 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_check_status()
216 	if (glue->vbus_irq)  in dsps_check_status()
231 			dsps_mod_timer_optional(glue);  in dsps_check_status()
239 			dsps_mod_timer_optional(glue);  in dsps_check_status()
248 		if (!glue->vbus_irq) {  in dsps_check_status()
264 		dsps_mod_timer_optional(glue);  in dsps_check_status()
305 	struct dsps_glue *glue = dev_get_drvdata(musb->controller->parent);  in dsps_musb_clear_ep_rxintr()  local
306 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_clear_ep_rxintr()
318 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_interrupt()  local
319 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_interrupt()
367 			dsps_mod_timer_optional(glue);  in dsps_interrupt()
372 			dsps_mod_timer_optional(glue);  in dsps_interrupt()
395 		dsps_mod_timer_optional(glue);  in dsps_interrupt()
407 static int dsps_musb_dbg_init(struct musb *musb, struct dsps_glue *glue)  in dsps_musb_dbg_init()  argument
414 	glue->dbgfs_root = root;  in dsps_musb_dbg_init()
416 	glue->regset.regs = dsps_musb_regs;  in dsps_musb_dbg_init()
417 	glue->regset.nregs = ARRAY_SIZE(dsps_musb_regs);  in dsps_musb_dbg_init()
418 	glue->regset.base = musb->ctrl_base;  in dsps_musb_dbg_init()
420 	debugfs_create_regset32("regdump", S_IRUGO, root, &glue->regset);  in dsps_musb_dbg_init()
427 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_init()  local
429 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_init()
486 		glue->sw_babble_enabled = true;  in dsps_musb_init()
491 	dsps_mod_timer(glue, -1);  in dsps_musb_init()
493 	return dsps_musb_dbg_init(musb, glue);  in dsps_musb_init()
499 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_exit()  local
504 	debugfs_remove_recursive(glue->dbgfs_root);  in dsps_musb_exit()
512 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_set_mode()  local
513 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_musb_set_mode()
549 		dev_err(glue->dev, "unsupported mode %d\n", mode);  in dsps_musb_set_mode()
610 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);  in dsps_musb_recover()  local
613 	if (glue->sw_babble_enabled)  in dsps_musb_recover()
643 	struct dsps_glue *glue = dev_get_drvdata(musb->controller->parent);  in dsps_dma_controller_callback()  local
644 	void __iomem *usbss_base = glue->usbss_base;  in dsps_dma_controller_callback()
656 	struct dsps_glue *glue = dev_get_drvdata(musb->controller->parent);  in dsps_dma_controller_create()  local
657 	void __iomem *usbss_base = glue->usbss_base;  in dsps_dma_controller_create()
670 static void dsps_dma_controller_suspend(struct dsps_glue *glue)  in dsps_dma_controller_suspend()  argument
672 	void __iomem *usbss_base = glue->usbss_base;  in dsps_dma_controller_suspend()
677 static void dsps_dma_controller_resume(struct dsps_glue *glue)  in dsps_dma_controller_resume()  argument
679 	void __iomem *usbss_base = glue->usbss_base;  in dsps_dma_controller_resume()
686 static void dsps_dma_controller_suspend(struct dsps_glue *glue) {}  in dsps_dma_controller_suspend()  argument
687 static void dsps_dma_controller_resume(struct dsps_glue *glue) {}  in dsps_dma_controller_resume()  argument
721 static int dsps_create_musb_pdev(struct dsps_glue *glue,  in dsps_create_musb_pdev()  argument
763 	glue->musb = musb;  in dsps_create_musb_pdev()
824 	struct dsps_glue *glue = priv;  in dsps_vbus_threaded_irq()  local
825 	struct musb *musb = platform_get_drvdata(glue->musb);  in dsps_vbus_threaded_irq()
830 	dev_dbg(glue->dev, "VBUS interrupt\n");  in dsps_vbus_threaded_irq()
831 	dsps_mod_timer(glue, 0);  in dsps_vbus_threaded_irq()
837 					struct dsps_glue *glue)  in dsps_setup_optional_vbus_irq()  argument
841 	glue->vbus_irq = platform_get_irq_byname(pdev, "vbus");  in dsps_setup_optional_vbus_irq()
842 	if (glue->vbus_irq == -EPROBE_DEFER)  in dsps_setup_optional_vbus_irq()
845 	if (glue->vbus_irq <= 0) {  in dsps_setup_optional_vbus_irq()
846 		glue->vbus_irq = 0;  in dsps_setup_optional_vbus_irq()
850 	error = devm_request_threaded_irq(glue->dev, glue->vbus_irq,  in dsps_setup_optional_vbus_irq()
853 					  "vbus", glue);  in dsps_setup_optional_vbus_irq()
855 		glue->vbus_irq = 0;  in dsps_setup_optional_vbus_irq()
858 	dev_dbg(glue->dev, "VBUS irq %i configured\n", glue->vbus_irq);  in dsps_setup_optional_vbus_irq()
867 	struct dsps_glue *glue;  in dsps_probe()  local
883 	/* allocate glue */  in dsps_probe()
884 	glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);  in dsps_probe()
885 	if (!glue)  in dsps_probe()
888 	glue->dev = &pdev->dev;  in dsps_probe()
889 	glue->wrp = wrp;  in dsps_probe()
890 	glue->usbss_base = of_iomap(pdev->dev.parent->of_node, 0);  in dsps_probe()
891 	if (!glue->usbss_base)  in dsps_probe()
894 	platform_set_drvdata(pdev, glue);  in dsps_probe()
896 	ret = dsps_create_musb_pdev(glue, pdev);  in dsps_probe()
901 		ret = dsps_setup_optional_vbus_irq(pdev, glue);  in dsps_probe()
909 	platform_device_unregister(glue->musb);  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()
969 	struct dsps_glue *glue = dev_get_drvdata(dev);  in dsps_suspend()  local
970 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_suspend()
971 	struct musb *musb = platform_get_drvdata(glue->musb);  in dsps_suspend()
988 	glue->context.control = musb_readl(mbase, wrp->control);  in dsps_suspend()
989 	glue->context.epintr = musb_readl(mbase, wrp->epintr_set);  in dsps_suspend()
990 	glue->context.coreintr = musb_readl(mbase, wrp->coreintr_set);  in dsps_suspend()
991 	glue->context.phy_utmi = musb_readl(mbase, wrp->phy_utmi);  in dsps_suspend()
992 	glue->context.mode = musb_readl(mbase, wrp->mode);  in dsps_suspend()
993 	glue->context.tx_mode = musb_readl(mbase, wrp->tx_mode);  in dsps_suspend()
994 	glue->context.rx_mode = musb_readl(mbase, wrp->rx_mode);  in dsps_suspend()
996 	dsps_dma_controller_suspend(glue);  in dsps_suspend()
1003 	struct dsps_glue *glue = dev_get_drvdata(dev);  in dsps_resume()  local
1004 	const struct dsps_musb_wrapper *wrp = glue->wrp;  in dsps_resume()
1005 	struct musb *musb = platform_get_drvdata(glue->musb);  in dsps_resume()
1011 	dsps_dma_controller_resume(glue);  in dsps_resume()
1014 	musb_writel(mbase, wrp->control, glue->context.control);  in dsps_resume()
1015 	musb_writel(mbase, wrp->epintr_set, glue->context.epintr);  in dsps_resume()
1016 	musb_writel(mbase, wrp->coreintr_set, glue->context.coreintr);  in dsps_resume()
1017 	musb_writel(mbase, wrp->phy_utmi, glue->context.phy_utmi);  in dsps_resume()
1018 	musb_writel(mbase, wrp->mode, glue->context.mode);  in dsps_resume()
1019 	musb_writel(mbase, wrp->tx_mode, glue->context.tx_mode);  in dsps_resume()
1020 	musb_writel(mbase, wrp->rx_mode, glue->context.rx_mode);  in dsps_resume()
1023 		dsps_mod_timer(glue, -1);  in dsps_resume()
1043 MODULE_DESCRIPTION("TI DSPS MUSB Glue Layer");