You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
66 lines
2.8 KiB
66 lines
2.8 KiB
From 8eb79690a70cce34e9a1c35cf165716f78301d2e Mon Sep 17 00:00:00 2001
|
|
From: P33M <P33M@github.com>
|
|
Date: Fri, 20 Jun 2014 16:03:12 +0100
|
|
Subject: [PATCH 045/114] dwc_otg: Fix various issues with root port and
|
|
transaction errors
|
|
|
|
Process the host port interrupts correctly (and don't trample them).
|
|
Root port hotplug now functional again.
|
|
|
|
Fix a few thinkos with the transaction error passthrough for fiq_fsm.
|
|
---
|
|
drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c | 7 +++----
|
|
drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c | 6 +++++-
|
|
drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c | 2 +-
|
|
3 files changed, 9 insertions(+), 6 deletions(-)
|
|
|
|
--- a/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c
|
|
+++ b/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c
|
|
@@ -1348,10 +1348,9 @@ static inline uint32_t dwc_otg_read_comm
|
|
local_fiq_disable();
|
|
/* Pull in the interrupts that the FIQ has masked */
|
|
gintmsk.d32 |= ~(hcd->fiq_state->gintmsk_saved.d32);
|
|
+ gintmsk.d32 |= gintmsk_common.d32;
|
|
/* for the upstairs function to reenable - have to read it here in case FIQ triggers again */
|
|
- reenable_gintmsk->d32 |= gintmsk.d32;
|
|
- reenable_gintmsk->d32 |= ~(hcd->fiq_state->gintmsk_saved.d32);
|
|
- reenable_gintmsk->d32 &= gintmsk_common.d32;
|
|
+ reenable_gintmsk->d32 = gintmsk.d32;
|
|
local_fiq_enable();
|
|
}
|
|
|
|
@@ -1535,7 +1534,7 @@ int32_t dwc_otg_handle_common_intr(void
|
|
// fiq_print(FIQDBG_INT, otg_dev->hcd->fiq_state, "CILOUT %1d", retval);
|
|
// fiq_print(FIQDBG_INT, otg_dev->hcd->fiq_state, "%08x", gintsts.d32);
|
|
// fiq_print(FIQDBG_INT, otg_dev->hcd->fiq_state, "%08x", gintmsk_reenable.d32);
|
|
- if (retval) {
|
|
+ if (retval && fiq_enable) {
|
|
DWC_WRITE_REG32(&core_if->core_global_regs->gintmsk, gintmsk_reenable.d32);
|
|
}
|
|
|
|
--- a/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c
|
|
+++ b/drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c
|
|
@@ -696,7 +696,11 @@ static int notrace noinline fiq_fsm_do_h
|
|
fiq_print(FIQDBG_ERR, state, "ERRST %02d", n);
|
|
if (hcint_probe.b.nak || hcint_probe.b.ack || hcint_probe.b.datatglerr) {
|
|
fiq_print(FIQDBG_ERR, state, "RESET %02d", n);
|
|
- st->nr_errors = 0;
|
|
+ /* In some random cases we can get a NAK interrupt coincident with a Xacterr
|
|
+ * interrupt, after the device has disappeared.
|
|
+ */
|
|
+ if (!hcint.b.xacterr)
|
|
+ st->nr_errors = 0;
|
|
hcintmsk.b.nak = 0;
|
|
hcintmsk.b.ack = 0;
|
|
hcintmsk.b.datatglerr = 0;
|
|
--- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
|
|
+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_intr.c
|
|
@@ -2619,7 +2619,7 @@ int32_t dwc_otg_hcd_handle_hc_n_intr(dwc
|
|
case FIQ_PASSTHROUGH_ERRORSTATE:
|
|
/* Hook into the error count */
|
|
fiq_print(FIQDBG_ERR, dwc_otg_hcd->fiq_state, "HCDERR%02d", num);
|
|
- if (dwc_otg_hcd->fiq_state->channel[num].nr_errors) {
|
|
+ if (!dwc_otg_hcd->fiq_state->channel[num].nr_errors) {
|
|
qtd->error_count = 0;
|
|
fiq_print(FIQDBG_ERR, dwc_otg_hcd->fiq_state, "RESET ");
|
|
}
|
|
|