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staging: most: hdm-usb: do h/w specific synchronization at configuration time

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This patch puts the synchronization procedure trigger for asynchronous
channels into the function hdm_configure_channel. Likewise, it removes
triggering of hardware specific synchronization for other channel types
from the probe function as it is not required.

Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andrey Shvetsov 2016-10-25 17:44:20 +02:00 committed by Greg Kroah-Hartman
parent 1e80e19ce9
commit 7c23baa90d
1 changed files with 9 additions and 8 deletions
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17
drivers/staging/most/hdm-usb/hdm_usb.c
View file

@ -695,6 +695,15 @@ static int hdm_configure_channel(struct most_interface *iface, int channel,
- conf->buffer_size;
exit:
mdev->conf[channel] = *conf;
if (conf->data_type == MOST_CH_ASYNC) {
u16 ep = mdev->ep_address[channel];
int err = drci_wr_reg(mdev->usb_device,
DRCI_REG_BASE + DRCI_COMMAND + ep * 16,
1);
if (err < 0)
dev_warn(dev, "sync for ep%02x failed", ep);
}
return 0;
}
@ -1111,7 +1120,6 @@ hdm_probe(struct usb_interface *interface, const struct usb_device_id *id)
struct most_channel_capability *tmp_cap;
struct usb_endpoint_descriptor *ep_desc;
int ret = 0;
int err;
if (!mdev)
goto exit_ENOMEM;
@ -1187,13 +1195,6 @@ hdm_probe(struct usb_interface *interface, const struct usb_device_id *id)
tmp_cap++;
init_usb_anchor(&mdev->busy_urbs[i]);
spin_lock_init(&mdev->channel_lock[i]);
err = drci_wr_reg(usb_dev,
DRCI_REG_BASE + DRCI_COMMAND +
ep_desc->bEndpointAddress * 16,
1);
if (err < 0)
dev_warn(dev, "DCI Sync for EP %02x failed",
ep_desc->bEndpointAddress);
}
dev_notice(dev, "claimed gadget: Vendor=%4.4x ProdID=%4.4x Bus=%02x Device=%02x\n",
le16_to_cpu(usb_dev->descriptor.idVendor),