diff options
| author | Felipe Balbi <balbi@ti.com> | 2012-10-11 10:54:36 (GMT) |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-10-15 11:58:56 (GMT) |
| commit | 3921426b13b1e0b2db6872a8d22d9fe2a4afe332 (patch) | |
| tree | cdc4cd76426fa93ea3ce72c1b6c78724835e3680 /drivers/usb/dwc3/core.c | |
| parent | 380f0d28431e852e07e3fa0d5f6e36cf9ea5aa5a (diff) | |
| download | linux-fsl-qoriq-3921426b13b1e0b2db6872a8d22d9fe2a4afe332.tar.xz | |
usb: dwc3: core: move event buffer allocation out of dwc3_core_init()
This patch is in preparation for adding PM support
dwc3 driver. We want to re-use dwc3_core_init and
dwc3_core_exit() functions on resume() and suspend()
callbacks respectively.
Moving even buffer allocation away from dwc3_core_init()
will allow us to reuse the event buffer which was allocated
long ago on our probe() routine.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3/core.c')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 8d543ea..b923183 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -381,24 +381,14 @@ static int __devinit dwc3_core_init(struct dwc3 *dwc) dwc3_writel(dwc->regs, DWC3_GCTL, reg); - ret = dwc3_alloc_event_buffers(dwc, DWC3_EVENT_BUFFERS_SIZE); - if (ret) { - dev_err(dwc->dev, "failed to allocate event buffers\n"); - ret = -ENOMEM; - goto err1; - } - ret = dwc3_event_buffers_setup(dwc); if (ret) { dev_err(dwc->dev, "failed to setup event buffers\n"); - goto err1; + goto err0; } return 0; -err1: - dwc3_free_event_buffers(dwc); - err0: return ret; } @@ -406,7 +396,6 @@ err0: static void dwc3_core_exit(struct dwc3 *dwc) { dwc3_event_buffers_cleanup(dwc); - dwc3_free_event_buffers(dwc); } #define DWC3_ALIGN_MASK (16 - 1) @@ -509,10 +498,17 @@ static int __devinit dwc3_probe(struct platform_device *pdev) pm_runtime_get_sync(dev); pm_runtime_forbid(dev); + ret = dwc3_alloc_event_buffers(dwc, DWC3_EVENT_BUFFERS_SIZE); + if (ret) { + dev_err(dwc->dev, "failed to allocate event buffers\n"); + ret = -ENOMEM; + goto err0; + } + ret = dwc3_core_init(dwc); if (ret) { dev_err(dev, "failed to initialize core\n"); - return ret; + goto err0; } mode = DWC3_MODE(dwc->hwparams.hwparams0); @@ -584,6 +580,9 @@ err2: err1: dwc3_core_exit(dwc); +err0: + dwc3_free_event_buffers(dwc); + return ret; } |