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authorAnand Gadiyar <gadiyar@ti.com>2010-07-26 16:34:27 -0600
committerPaul Walmsley <paul@pwsan.com>2010-07-26 16:34:27 -0600
commit25499d9353e8cc6b0cf205684b3ebc535f8b9372 (patch)
tree2313746d14fd50787286378366616e978120902c /fs/compat_ioctl.c
parentb37fa16e78d6f9790462b3181602a26b5af36260 (diff)
OMAP3: wait on IDLEST after enabling USBTLL fclk
We need to wait on the IDLEST bit after the clocks are enabled before attempting to access any register. Currently, the USBTLL i-clock ops uses the clkops_omap2_dflt_wait, while the USBTLL f-clock ops uses clkops_omap2_dflt. If the i-clock is enabled first, the clkops_omap2_dflt_wait is short-circuited as the companion f-clock is not enabled. This can cause a data abort if the IDLEST has not transitioned, and we try to access a USBTLL register. Since the USBTLL i-clock and f-clock could be enabled in any order, this is a bug. Fix it by changing the clkops for the f-clock. Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
Diffstat (limited to 'fs/compat_ioctl.c')
0 files changed, 0 insertions, 0 deletions