From: Sriram Dash <sriram.dash@nxp.com>
To: <linux-kernel@vger.kernel.org>, <linux-usb@vger.kernel.org>
CC: <mathias.nyman@intel.com>, <gregkh@linuxfoundation.org>,
        <suresh.gupta@nxp.com>, <felipe.balbi@linux.intel.com>,
        <stern@rowland.harvard.edu>, <pku.leo@gmail.com>,
        Arnd Bergmann <arnd@arndb.de>, Sriram Dash <sriram.dash@nxp.com>
Subject: [PATCH v3 2/6] usb: chipidea: use bus->sysdev for DMA configuration
Date: Thu, 10 Nov 2016 13:49:57 +0530
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From: Arnd Bergmann <arnd@arndb.de>

Set the dma for chipidea from sysdev. This is inherited from its
parent node. Also, do not set dma mask for child as it is not required
now.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
Acked-by: Peter Chen <peter.chen@nxp.com>
---
Changes in v3:
  - No update

Changes in v2:
  - integrate chipidea driver changes together.

 drivers/usb/chipidea/core.c |  3 ---
 drivers/usb/chipidea/host.c |  3 ++-
 drivers/usb/chipidea/udc.c  | 10 ++++++----
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 69426e6..8917a03 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -833,9 +833,6 @@ struct platform_device *ci_hdrc_add_device(struct device *dev,
 	}
 
 	pdev->dev.parent = dev;
-	pdev->dev.dma_mask = dev->dma_mask;
-	pdev->dev.dma_parms = dev->dma_parms;
-	dma_set_coherent_mask(&pdev->dev, dev->coherent_dma_mask);
 
 	ret = platform_device_add_resources(pdev, res, nres);
 	if (ret)
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 111b0e0b..3218b49 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -116,7 +116,8 @@ static int host_start(struct ci_hdrc *ci)
 	if (usb_disabled())
 		return -ENODEV;
 
-	hcd = usb_create_hcd(&ci_ehci_hc_driver, ci->dev, dev_name(ci->dev));
+	hcd = __usb_create_hcd(&ci_ehci_hc_driver, ci->dev->parent,
+			       ci->dev, dev_name(ci->dev), NULL);
 	if (!hcd)
 		return -ENOMEM;
 
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 661f43f..bc55922 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -423,7 +423,8 @@ static int _hardware_enqueue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
 
 	hwreq->req.status = -EALREADY;
 
-	ret = usb_gadget_map_request(&ci->gadget, &hwreq->req, hwep->dir);
+	ret = usb_gadget_map_request_by_dev(ci->dev->parent,
+					    &hwreq->req, hwep->dir);
 	if (ret)
 		return ret;
 
@@ -603,7 +604,8 @@ static int _hardware_dequeue(struct ci_hw_ep *hwep, struct ci_hw_req *hwreq)
 		list_del_init(&node->td);
 	}
 
-	usb_gadget_unmap_request(&hwep->ci->gadget, &hwreq->req, hwep->dir);
+	usb_gadget_unmap_request_by_dev(hwep->ci->dev->parent,
+					&hwreq->req, hwep->dir);
 
 	hwreq->req.actual += actual;
 
@@ -1904,13 +1906,13 @@ static int udc_start(struct ci_hdrc *ci)
 	INIT_LIST_HEAD(&ci->gadget.ep_list);
 
 	/* alloc resources */
-	ci->qh_pool = dma_pool_create("ci_hw_qh", dev,
+	ci->qh_pool = dma_pool_create("ci_hw_qh", dev->parent,
 				       sizeof(struct ci_hw_qh),
 				       64, CI_HDRC_PAGE_SIZE);
 	if (ci->qh_pool == NULL)
 		return -ENOMEM;
 
-	ci->td_pool = dma_pool_create("ci_hw_td", dev,
+	ci->td_pool = dma_pool_create("ci_hw_td", dev->parent,
 				       sizeof(struct ci_hw_td),
 				       64, CI_HDRC_PAGE_SIZE);
 	if (ci->td_pool == NULL) {
-- 
2.1.0