From d64ff406e51e4f359afedbf2468a10440d6d8cef Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 17 Nov 2016 17:13:47 +0530 Subject: [PATCH] usb: dwc3: use bus->sysdev for DMA configuration The dma ops for dwc3 devices are not set properly. So, use a physical device sysdev, which will be inherited from parent, to set the hardware / firmware parameters like dma. Signed-off-by: Arnd Bergmann Signed-off-by: Sriram Dash Tested-by: Baolin Wang Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/core.c | 27 ++++++++++++++------------- drivers/usb/dwc3/core.h | 3 +++ drivers/usb/dwc3/dwc3-pci.c | 10 ++++++++++ drivers/usb/dwc3/ep0.c | 8 ++++---- drivers/usb/dwc3/gadget.c | 33 +++++++++++++++++---------------- drivers/usb/dwc3/host.c | 16 ++++++---------- 6 files changed, 54 insertions(+), 43 deletions(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index e95144870210..e5fbab2715ab 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -202,7 +202,7 @@ static void dwc3_frame_length_adjustment(struct dwc3 *dwc) static void dwc3_free_one_event_buffer(struct dwc3 *dwc, struct dwc3_event_buffer *evt) { - dma_free_coherent(dwc->dev, evt->length, evt->buf, evt->dma); + dma_free_coherent(dwc->sysdev, evt->length, evt->buf, evt->dma); } /** @@ -228,7 +228,7 @@ static struct dwc3_event_buffer *dwc3_alloc_one_event_buffer(struct dwc3 *dwc, if (!evt->cache) return ERR_PTR(-ENOMEM); - evt->buf = dma_alloc_coherent(dwc->dev, length, + evt->buf = dma_alloc_coherent(dwc->sysdev, length, &evt->dma, GFP_KERNEL); if (!evt->buf) return ERR_PTR(-ENOMEM); @@ -341,11 +341,11 @@ static int dwc3_setup_scratch_buffers(struct dwc3 *dwc) if (!WARN_ON(dwc->scratchbuf)) return 0; - scratch_addr = dma_map_single(dwc->dev, dwc->scratchbuf, + scratch_addr = dma_map_single(dwc->sysdev, dwc->scratchbuf, dwc->nr_scratch * DWC3_SCRATCHBUF_SIZE, DMA_BIDIRECTIONAL); - if (dma_mapping_error(dwc->dev, scratch_addr)) { - dev_err(dwc->dev, "failed to map scratch buffer\n"); + if (dma_mapping_error(dwc->sysdev, scratch_addr)) { + dev_err(dwc->sysdev, "failed to map scratch buffer\n"); ret = -EFAULT; goto err0; } @@ -369,7 +369,7 @@ static int dwc3_setup_scratch_buffers(struct dwc3 *dwc) return 0; err1: - dma_unmap_single(dwc->dev, dwc->scratch_addr, dwc->nr_scratch * + dma_unmap_single(dwc->sysdev, dwc->scratch_addr, dwc->nr_scratch * DWC3_SCRATCHBUF_SIZE, DMA_BIDIRECTIONAL); err0: @@ -388,7 +388,7 @@ static void dwc3_free_scratch_buffers(struct dwc3 *dwc) if (!WARN_ON(dwc->scratchbuf)) return; - dma_unmap_single(dwc->dev, dwc->scratch_addr, dwc->nr_scratch * + dma_unmap_single(dwc->sysdev, dwc->scratch_addr, dwc->nr_scratch * DWC3_SCRATCHBUF_SIZE, DMA_BIDIRECTIONAL); kfree(dwc->scratchbuf); } @@ -927,6 +927,13 @@ static void dwc3_get_properties(struct dwc3 *dwc) dwc->dr_mode = usb_get_dr_mode(dev); dwc->hsphy_mode = of_usb_get_phy_mode(dev->of_node); + dwc->sysdev_is_parent = device_property_read_bool(dev, + "linux,sysdev_is_parent"); + if (dwc->sysdev_is_parent) + dwc->sysdev = dwc->dev->parent; + else + dwc->sysdev = dwc->dev; + dwc->has_lpm_erratum = device_property_read_bool(dev, "snps,has-lpm-erratum"); device_property_read_u8(dev, "snps,lpm-nyet-threshold", @@ -1097,12 +1104,6 @@ static int dwc3_probe(struct platform_device *pdev) spin_lock_init(&dwc->lock); - if (!dev->dma_mask) { - dev->dma_mask = dev->parent->dma_mask; - dev->dma_parms = dev->parent->dma_parms; - dma_set_coherent_mask(dev, dev->parent->coherent_dma_mask); - } - pm_runtime_set_active(dev); pm_runtime_use_autosuspend(dev); pm_runtime_set_autosuspend_delay(dev, DWC3_DEFAULT_AUTOSUSPEND_DELAY); diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index ef81fa5d0088..de5a8570be04 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -819,6 +819,7 @@ struct dwc3_scratchpad_array { * @ep0_bounced: true when we used bounce buffer * @ep0_expect_in: true when we expect a DATA IN transfer * @has_hibernation: true when dwc3 was configured with Hibernation + * @sysdev_is_parent: true when dwc3 device has a parent driver * @has_lpm_erratum: true when core was configured with LPM Erratum. Note that * there's now way for software to detect this in runtime. * @is_utmi_l1_suspend: the core asserts output signal @@ -875,6 +876,7 @@ struct dwc3 { spinlock_t lock; struct device *dev; + struct device *sysdev; struct platform_device *xhci; struct resource xhci_resources[DWC3_XHCI_RESOURCES_NUM]; @@ -976,6 +978,7 @@ struct dwc3 { unsigned ep0_bounced:1; unsigned ep0_expect_in:1; unsigned has_hibernation:1; + unsigned sysdev_is_parent:1; unsigned has_lpm_erratum:1; unsigned is_utmi_l1_suspend:1; unsigned is_fpga:1; diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 2b0e34ddaae8..2b73339f286b 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -73,6 +73,16 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc) { struct platform_device *dwc3 = dwc->dwc3; struct pci_dev *pdev = dwc->pci; + int ret; + + struct property_entry sysdev_property[] = { + PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"), + { }, + }; + + ret = platform_device_add_properties(dwc3, sysdev_property); + if (ret) + return ret; if (pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == PCI_DEVICE_ID_AMD_NL_USB) { diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 4c0664640862..4878d187c7d4 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -1001,8 +1001,8 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc, u32 transfer_size = 0; u32 maxpacket; - ret = usb_gadget_map_request(&dwc->gadget, &req->request, - dep->number); + ret = usb_gadget_map_request_by_dev(dwc->sysdev, + &req->request, dep->number); if (ret) return; @@ -1027,8 +1027,8 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc, dwc->ep0_bounce_addr, transfer_size, DWC3_TRBCTL_CONTROL_DATA, false); } else { - ret = usb_gadget_map_request(&dwc->gadget, &req->request, - dep->number); + ret = usb_gadget_map_request_by_dev(dwc->sysdev, + &req->request, dep->number); if (ret) return; diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index e2416de36bb0..678559525618 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -183,8 +183,8 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req, if (dwc->ep0_bounced && dep->number == 0) dwc->ep0_bounced = false; else - usb_gadget_unmap_request(&dwc->gadget, &req->request, - req->direction); + usb_gadget_unmap_request_by_dev(dwc->sysdev, + &req->request, req->direction); trace_dwc3_gadget_giveback(req); @@ -399,7 +399,7 @@ static int dwc3_alloc_trb_pool(struct dwc3_ep *dep) if (dep->trb_pool) return 0; - dep->trb_pool = dma_alloc_coherent(dwc->dev, + dep->trb_pool = dma_alloc_coherent(dwc->sysdev, sizeof(struct dwc3_trb) * DWC3_TRB_NUM, &dep->trb_pool_dma, GFP_KERNEL); if (!dep->trb_pool) { @@ -415,7 +415,7 @@ static void dwc3_free_trb_pool(struct dwc3_ep *dep) { struct dwc3 *dwc = dep->dwc; - dma_free_coherent(dwc->dev, sizeof(struct dwc3_trb) * DWC3_TRB_NUM, + dma_free_coherent(dwc->sysdev, sizeof(struct dwc3_trb) * DWC3_TRB_NUM, dep->trb_pool, dep->trb_pool_dma); dep->trb_pool = NULL; @@ -1171,8 +1171,8 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req) trace_dwc3_ep_queue(req); - ret = usb_gadget_map_request(&dwc->gadget, &req->request, - dep->direction); + ret = usb_gadget_map_request_by_dev(dwc->sysdev, &req->request, + dep->direction); if (ret) return ret; @@ -2977,7 +2977,7 @@ int dwc3_gadget_init(struct dwc3 *dwc) dwc->irq_gadget = irq; - dwc->ctrl_req = dma_alloc_coherent(dwc->dev, sizeof(*dwc->ctrl_req), + dwc->ctrl_req = dma_alloc_coherent(dwc->sysdev, sizeof(*dwc->ctrl_req), &dwc->ctrl_req_addr, GFP_KERNEL); if (!dwc->ctrl_req) { dev_err(dwc->dev, "failed to allocate ctrl request\n"); @@ -2985,8 +2985,9 @@ int dwc3_gadget_init(struct dwc3 *dwc) goto err0; } - dwc->ep0_trb = dma_alloc_coherent(dwc->dev, sizeof(*dwc->ep0_trb) * 2, - &dwc->ep0_trb_addr, GFP_KERNEL); + dwc->ep0_trb = dma_alloc_coherent(dwc->sysdev, + sizeof(*dwc->ep0_trb) * 2, + &dwc->ep0_trb_addr, GFP_KERNEL); if (!dwc->ep0_trb) { dev_err(dwc->dev, "failed to allocate ep0 trb\n"); ret = -ENOMEM; @@ -2999,7 +3000,7 @@ int dwc3_gadget_init(struct dwc3 *dwc) goto err2; } - dwc->ep0_bounce = dma_alloc_coherent(dwc->dev, + dwc->ep0_bounce = dma_alloc_coherent(dwc->sysdev, DWC3_EP0_BOUNCE_SIZE, &dwc->ep0_bounce_addr, GFP_KERNEL); if (!dwc->ep0_bounce) { @@ -3072,18 +3073,18 @@ err5: err4: dwc3_gadget_free_endpoints(dwc); - dma_free_coherent(dwc->dev, DWC3_EP0_BOUNCE_SIZE, + dma_free_coherent(dwc->sysdev, DWC3_EP0_BOUNCE_SIZE, dwc->ep0_bounce, dwc->ep0_bounce_addr); err3: kfree(dwc->setup_buf); err2: - dma_free_coherent(dwc->dev, sizeof(*dwc->ep0_trb) * 2, + dma_free_coherent(dwc->sysdev, sizeof(*dwc->ep0_trb) * 2, dwc->ep0_trb, dwc->ep0_trb_addr); err1: - dma_free_coherent(dwc->dev, sizeof(*dwc->ctrl_req), + dma_free_coherent(dwc->sysdev, sizeof(*dwc->ctrl_req), dwc->ctrl_req, dwc->ctrl_req_addr); err0: @@ -3098,16 +3099,16 @@ void dwc3_gadget_exit(struct dwc3 *dwc) dwc3_gadget_free_endpoints(dwc); - dma_free_coherent(dwc->dev, DWC3_EP0_BOUNCE_SIZE, + dma_free_coherent(dwc->sysdev, DWC3_EP0_BOUNCE_SIZE, dwc->ep0_bounce, dwc->ep0_bounce_addr); kfree(dwc->setup_buf); kfree(dwc->zlp_buf); - dma_free_coherent(dwc->dev, sizeof(*dwc->ep0_trb) * 2, + dma_free_coherent(dwc->sysdev, sizeof(*dwc->ep0_trb) * 2, dwc->ep0_trb, dwc->ep0_trb_addr); - dma_free_coherent(dwc->dev, sizeof(*dwc->ctrl_req), + dma_free_coherent(dwc->sysdev, sizeof(*dwc->ctrl_req), dwc->ctrl_req, dwc->ctrl_req_addr); } diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c index 8c2679e7d4a7..487f0ff6ae25 100644 --- a/drivers/usb/dwc3/host.c +++ b/drivers/usb/dwc3/host.c @@ -84,11 +84,7 @@ int dwc3_host_init(struct dwc3 *dwc) return -ENOMEM; } - dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask); - xhci->dev.parent = dwc->dev; - xhci->dev.dma_mask = dwc->dev->dma_mask; - xhci->dev.dma_parms = dwc->dev->dma_parms; dwc->xhci = xhci; @@ -111,9 +107,9 @@ int dwc3_host_init(struct dwc3 *dwc) } phy_create_lookup(dwc->usb2_generic_phy, "usb2-phy", - dev_name(&xhci->dev)); + dev_name(dwc->dev)); phy_create_lookup(dwc->usb3_generic_phy, "usb3-phy", - dev_name(&xhci->dev)); + dev_name(dwc->dev)); ret = platform_device_add(xhci); if (ret) { @@ -124,9 +120,9 @@ int dwc3_host_init(struct dwc3 *dwc) return 0; err2: phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy", - dev_name(&xhci->dev)); + dev_name(dwc->dev)); phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy", - dev_name(&xhci->dev)); + dev_name(dwc->dev)); err1: platform_device_put(xhci); return ret; @@ -135,8 +131,8 @@ err1: void dwc3_host_exit(struct dwc3 *dwc) { phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy", - dev_name(&dwc->xhci->dev)); + dev_name(dwc->dev)); phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy", - dev_name(&dwc->xhci->dev)); + dev_name(dwc->dev)); platform_device_unregister(dwc->xhci); } -- 2.20.1