diff options
| author | Mian Yousaf Kaukab <yousaf.kaukab@intel.com> | 2015-11-20 13:49:28 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-12-15 18:12:41 +0300 |
| commit | fbb9e22b15ad3c9a98c66bad801b4d1366e8bf20 (patch) | |
| tree | 11c3c1a561b92a95b608e597052c1ae029aa6986 /drivers/usb/dwc2/hcd_intr.c | |
| parent | 75f5c434c30b22a48a1d4a0f827473dc29036d78 (diff) | |
| download | linux-fbb9e22b15ad3c9a98c66bad801b4d1366e8bf20.tar.xz | |
usb: dwc2: host: enable descriptor dma for fs devices
As descriptor dma mode does not support split transfers, it can't be
enabled for high speed devices. Add a core parameter to enable it for
full speed devices.
Ensure frame list and descriptor list are correctly freed during
disconnect.
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc2/hcd_intr.c')
| -rw-r--r-- | drivers/usb/dwc2/hcd_intr.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/usb/dwc2/hcd_intr.c b/drivers/usb/dwc2/hcd_intr.c index bda0b21b850f..7c15f03b069c 100644 --- a/drivers/usb/dwc2/hcd_intr.c +++ b/drivers/usb/dwc2/hcd_intr.c @@ -372,10 +372,21 @@ static void dwc2_port_intr(struct dwc2_hsotg *hsotg) " --Port Interrupt HPRT0=0x%08x Port Enable Changed (now %d)--\n", hprt0, !!(hprt0 & HPRT0_ENA)); hprt0_modify |= HPRT0_ENACHG; - if (hprt0 & HPRT0_ENA) + if (hprt0 & HPRT0_ENA) { + hsotg->new_connection = true; dwc2_hprt0_enable(hsotg, hprt0, &hprt0_modify); - else + } else { hsotg->flags.b.port_enable_change = 1; + if (hsotg->core_params->dma_desc_fs_enable) { + u32 hcfg; + + hsotg->core_params->dma_desc_enable = 0; + hsotg->new_connection = false; + hcfg = dwc2_readl(hsotg->regs + HCFG); + hcfg &= ~HCFG_DESCDMA; + dwc2_writel(hcfg, hsotg->regs + HCFG); + } + } } /* Overcurrent Change Interrupt */ |