linux/drivers/media
Devin Heitmueller b8d91986e6 V4L/DVB (11807): cx88: remove xc5000 reset for Pinnacle 800i
According to the engineer at PCTV Systems, the xc5000 reset pin is supposed
to be on GPIO12.  However, despite three nights of effort, pulling that GPIO
low didn't reset the xc5000.  While pulling MO_SRST_IO low does reset the
xc5000, this also resets in the s5h1409 being reset as well.  This causes
tuning to always fail since the internal state of the s5h1409 does not match
the driver's state.

Given that the only two conditions in which the driver performs a reset is
during firmware load and powering down the chip, I am taking out the reset.
We know that the chip is being reset when the cx88 comes online, and not being
able to do power management for this board is better than not having any
tuning at all.

Problem discovered when implementing proper power management for the xc5000,
which results in calls to the reset callback *after* s5h1409 is initialized.

Cc: Steven Toth <stoth@kernellabs.com>
Cc: Chaogui Zhang <czhang1974@gmail.com>
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16 18:21:08 -03:00
..
common V4L/DVB (11806): xc5000: add copyright line 2009-06-16 18:21:08 -03:00
dvb V4L/DVB (11801): dib0700: reduce xc5000 sleep time for Pinnacle 801e to 10ms 2009-06-16 18:21:07 -03:00
radio V4L/DVB (11677): radio-fm16: fix g_tuner. 2009-06-16 18:21:01 -03:00
video V4L/DVB (11807): cx88: remove xc5000 reset for Pinnacle 800i 2009-06-16 18:21:08 -03:00
Kconfig V4L/DVB (10633): DAB: fix typo 2009-03-30 12:42:49 -03:00
Makefile V4L/DVB (8274): sms1xxx: build cleanup after driver relocation 2008-07-20 07:20:56 -03:00