| commit | 587808d5f59e842f9258a15e88ad530fcf6e6763 | [log] [tgz] |
|---|---|---|
| author | Andy Walls <awalls@radix.net> | Wed Feb 10 15:34:46 2010 -0300 |
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | Fri Feb 26 15:11:07 2010 -0300 |
| tree | 07252eaff987faf5ad1b6256d520c13ab90e4554 | |
| parent | 00cb9f6920aaeb34bcef146085ae57e363641a85 [diff] |
V4L/DVB: ivtv: Fix ivtv_api_get_data() to avoid unneeded IO during IRQ handling ivtv_api_get_data() was performing more PCI MMIO than needed, resulting often in it accounting for more than half the total time spent in ivtv_irq_handler(). Now it only reads at most 7 of the 16 mailbox data words over the PCI bus, and in some instances only 2 or 3 data words as needed. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>