diff options
| author | Fabian Vogt <fabian@ritter-vogt.de> | 2021-03-24 17:11:12 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-26 16:43:47 +0300 |
| commit | 9aee3a23d6455200702f3a57e731fa11e8408667 (patch) | |
| tree | 9f63aac6c0498ef715c21da4e6e2bbfa100d9edc /drivers | |
| parent | c7f755b243494d6043aadcd9a2989cb157958b95 (diff) | |
| download | linux-9aee3a23d6455200702f3a57e731fa11e8408667.tar.xz | |
fotg210-udc: Mask GRP2 interrupts we don't handle
Currently it leaves unhandled interrupts unmasked, but those are never
acked. In the case of a "device idle" interrupt, this leads to an
effectively frozen system until plugging it in.
Fixes: b84a8dee23fd ("usb: gadget: add Faraday fotg210_udc driver")
Signed-off-by: Fabian Vogt <fabian@ritter-vogt.de>
Link: https://lore.kernel.org/r/20210324141115.9384-5-fabian@ritter-vogt.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/gadget/udc/fotg210-udc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c index a3ad93bfd256..bbcc92376307 100644 --- a/drivers/usb/gadget/udc/fotg210-udc.c +++ b/drivers/usb/gadget/udc/fotg210-udc.c @@ -1026,6 +1026,12 @@ static void fotg210_init(struct fotg210_udc *fotg210) value &= ~DMCR_GLINT_EN; iowrite32(value, fotg210->reg + FOTG210_DMCR); + /* enable only grp2 irqs we handle */ + iowrite32(~(DISGR2_DMA_ERROR | DISGR2_RX0BYTE_INT | DISGR2_TX0BYTE_INT + | DISGR2_ISO_SEQ_ABORT_INT | DISGR2_ISO_SEQ_ERR_INT + | DISGR2_RESM_INT | DISGR2_SUSP_INT | DISGR2_USBRST_INT), + fotg210->reg + FOTG210_DMISGR2); + /* disable all fifo interrupt */ iowrite32(~(u32)0, fotg210->reg + FOTG210_DMISGR1); |