From: Peter Chen <peter.chen@nxp.com>
To: balbi@kernel.org, mathias.nyman@intel.com
Cc: linux-usb@vger.kernel.org, linux-imx@nxp.com, pawell@cadence.com,
rogerq@ti.com, gregkh@linuxfoundation.org, jun.li@nxp.com,
Peter Chen <peter.chen@nxp.com>
Subject: [PATCH 6/8] usb: host: xhci-plat: add priv flag for skip_phy_initialization
Date: Fri, 22 May 2020 18:32:54 +0800 [thread overview]
Message-ID: <20200522103256.16322-7-peter.chen@nxp.com> (raw)
In-Reply-To: <20200522103256.16322-1-peter.chen@nxp.com>
Some DRD controllers (eg, dwc3 & cdns3) have PHY management at
their own driver to cover both device and host mode, so add one
priv flag for such users to skip PHY management from HCD core.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
---
drivers/usb/host/xhci-plat.c | 8 ++++++--
drivers/usb/host/xhci-plat.h | 1 +
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index a45c7ec33ed6..f653b717c098 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -173,6 +173,8 @@ static int xhci_plat_probe(struct platform_device *pdev)
struct usb_hcd *hcd;
int ret;
int irq;
+ struct xhci_plat_priv *priv = NULL;
+
if (usb_disabled())
return -ENODEV;
@@ -271,8 +273,7 @@ static int xhci_plat_probe(struct platform_device *pdev)
priv_match = dev_get_platdata(&pdev->dev);
if (priv_match) {
- struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
-
+ priv = hcd_to_xhci_priv(hcd);
/* Just copy data for now */
*priv = *priv_match;
}
@@ -324,6 +325,9 @@ static int xhci_plat_probe(struct platform_device *pdev)
hcd->tpl_support = of_usb_host_tpl_support(sysdev->of_node);
xhci->shared_hcd->tpl_support = hcd->tpl_support;
+ if (priv && priv->skip_phy_initialization)
+ hcd->skip_phy_initialization = 1;
+
ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (ret)
goto disable_usb_phy;
diff --git a/drivers/usb/host/xhci-plat.h b/drivers/usb/host/xhci-plat.h
index 9338a4f946d0..d78e86e14f59 100644
--- a/drivers/usb/host/xhci-plat.h
+++ b/drivers/usb/host/xhci-plat.h
@@ -13,6 +13,7 @@
struct xhci_plat_priv {
const char *firmware_name;
unsigned long long quirks;
+ unsigned int skip_phy_initialization:1;
void (*plat_start)(struct usb_hcd *);
int (*init_quirk)(struct usb_hcd *);
int (*suspend_quirk)(struct usb_hcd *);
--
2.17.1
next prev parent reply other threads:[~2020-05-22 10:33 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-22 10:32 [PATCH 0/8] usb: cdns3: add runtime PM support Peter Chen
2020-05-22 10:32 ` [PATCH 1/8] " Peter Chen
2020-08-31 10:01 ` Felipe Balbi
2020-08-31 10:59 ` Peter Chen
2020-08-31 11:27 ` Felipe Balbi
2020-05-22 10:32 ` [PATCH 2/8] usb: cdns3: imx: add glue layer runtime pm implementation Peter Chen
2020-08-31 10:04 ` Felipe Balbi
2020-05-22 10:32 ` [PATCH 3/8] usb: host: xhci-plat: add platform data support Peter Chen
2020-05-22 10:32 ` [PATCH 4/8] usb: host: xhci-plat: add .suspend_quirk for struct xhci_plat_priv Peter Chen
2020-08-31 10:06 ` Felipe Balbi
2020-08-31 11:00 ` Peter Chen
2020-05-22 10:32 ` [PATCH 5/8] usb: host: xhci-plat: delete the unnecessary code Peter Chen
2020-05-22 10:32 ` Peter Chen [this message]
2020-05-22 10:32 ` [PATCH 7/8] usb: cdns3: host: add .suspend_quirk for xhci-plat.c Peter Chen
2020-05-22 10:32 ` [PATCH 8/8] usb: cdns3: host: add xhci_plat_priv's flag skip_phy_initialization Peter Chen
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