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usb: dwc2: host: enable descriptor dma for fs devices

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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>
This commit is contained in:
Mian Yousaf Kaukab
2015-11-20 11:49:28 +01:00
committed by Felipe Balbi
parent 75f5c434c3
commit fbb9e22b15
6 changed files with 84 additions and 3 deletions
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15
drivers/usb/dwc2/hcd_intr.c
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@@ -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 */