diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2015-01-21 00:55:54 +0200 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-01-27 09:39:03 -0600 |
| commit | cdd36e872c55603af60a9dc1f9e4b3de31ffc21a (patch) | |
| tree | 018dd64514f3e0a2b100dc4e72d74b8b234f70f9 /drivers/usb | |
| parent | c770e00122a939f4ec9eeb663b6be6a131065926 (diff) | |
usb: isp1760: Decouple usb_hdc and isp1760_priv
Allocate the driver private data structure manually instead of using the
usb_hcd private space. This will allow skipping hcd registration for the
isp1761 when used in device mode only.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/isp1760-hcd.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c index 2e38efe8d4d4..55c0add700b1 100644 --- a/drivers/usb/host/isp1760-hcd.c +++ b/drivers/usb/host/isp1760-hcd.c @@ -40,6 +40,8 @@ enum queue_head_types { }; struct isp1760_hcd { + struct usb_hcd *hcd; + u32 hcs_params; spinlock_t lock; struct slotinfo atl_slots[32]; @@ -65,7 +67,7 @@ typedef void (packet_enqueue)(struct usb_hcd *hcd, struct isp1760_qh *qh, static inline struct isp1760_hcd *hcd_to_priv(struct usb_hcd *hcd) { - return (struct isp1760_hcd *) (hcd->hcd_priv); + return *(struct isp1760_hcd **)hcd->hcd_priv; } /* Section 2.2 Host Controller Capability Registers */ @@ -2161,7 +2163,7 @@ static void isp1760_clear_tt_buffer_complete(struct usb_hcd *hcd, static const struct hc_driver isp1760_hc_driver = { .description = "isp1760-hcd", .product_desc = "NXP ISP1760 USB Host Controller", - .hcd_priv_size = sizeof(struct isp1760_hcd), + .hcd_priv_size = sizeof(struct isp1760_hcd *), .irq = isp1760_irq, .flags = HCD_MEMORY | HCD_USB2, .reset = isp1760_hc_setup, @@ -2214,13 +2216,17 @@ void isp1760_deinit_kmem_cache(void) int isp1760_register(struct resource *mem, int irq, unsigned long irqflags, struct device *dev, unsigned int devflags) { - struct usb_hcd *hcd; + struct usb_hcd *hcd = NULL; struct isp1760_hcd *priv; int ret; if (usb_disabled()) return -ENODEV; + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + /* prevent usb-core allocating DMA pages */ dev->dma_mask = NULL; @@ -2228,7 +2234,9 @@ int isp1760_register(struct resource *mem, int irq, unsigned long irqflags, if (!hcd) return -ENOMEM; - priv = hcd_to_priv(hcd); + priv->hcd = hcd; + *(struct isp1760_hcd **)hcd->hcd_priv = priv; + priv->devflags = devflags; priv->rst_gpio = devm_gpiod_get_optional(dev, NULL, GPIOD_OUT_HIGH); @@ -2253,7 +2261,7 @@ int isp1760_register(struct resource *mem, int irq, unsigned long irqflags, goto error; device_wakeup_enable(hcd->self.controller); - dev_set_drvdata(dev, hcd); + dev_set_drvdata(dev, priv); return 0; @@ -2264,7 +2272,8 @@ error: void isp1760_unregister(struct device *dev) { - struct usb_hcd *hcd = dev_get_drvdata(dev); + struct isp1760_hcd *priv = dev_get_drvdata(dev); + struct usb_hcd *hcd = priv->hcd; usb_remove_hcd(hcd); usb_put_hcd(hcd); |