Commit 2a07a5dd authored by Takashi Iwai's avatar Takashi Iwai Committed by Thomas Zimmermann
Browse files

drm/udl: Increase the default URB list size to 20 



It seems that the current size (4) for the URB list is too small on
some devices, and it resulted in the occasional stalls.  Increase the
default URB list size to 20 for working around it.

Acked-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarThomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220908095115.23396-7-tiwai@suse.de
parent 53593515

drivers/gpu/drm/udl/udl_main.c

+1 −1
Original line number Diff line number Diff line
@@ -20,7 +20,7 @@ 
#define NR_USB_REQUEST_CHANNEL 0x12



#define MAX_TRANSFER (PAGE_SIZE*16 - BULK_SIZE)

#define WRITES_IN_FLIGHT (4)

#define WRITES_IN_FLIGHT (20)

#define MAX_VENDOR_DESCRIPTOR_SIZE 256



static int udl_parse_vendor_descriptor(struct udl_device *udl)