[U-Boot] [PATCH 13/16] usb: ohci: Remove unnecessary delays from hc_start and power power-on paths
Hans de Goede
hdegoede at redhat.com
Tue May 5 23:56:16 CEST 2015
The common usb_hub code already waits a full second after powering up ports,
so there is no need for additional delays inside the hcd code.
Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
drivers/usb/host/ohci-hcd.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index da500c0..dc0892f 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1338,7 +1338,6 @@ pkt_print(ohci, NULL, dev, pipe, buffer, transfer_len,
OK(0);
case (RH_PORT_POWER):
WR_RH_PORTSTAT(RH_PS_PPS);
- mdelay(100);
OK(0);
case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/
if (RD_RH_PORTSTAT & RH_PS_CCS)
@@ -1737,9 +1736,6 @@ static int hc_start(ohci_t *ohci)
ohci_writel(RH_HS_LPSC, &ohci->regs->roothub.status);
#endif /* OHCI_USE_NPS */
- /* POTPGT delay is bits 24-31, in 2 ms units. */
- mdelay((roothub_a(ohci) >> 23) & 0x1fe);
-
/* connect the virtual root hub */
ohci->rh.devnum = 0;
--
2.3.6
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