The function ipa_reg_init_hol_block_timer_val() generates the value
to write into the HOL_BLOCK_TIMER endpoint configuration register,
to represent a given timeout value (in microseconds). It only
supports a timer value of 0 though, in part because that's
sufficient, but mainly because there was some confusion about
how the register is formatted in newer hardware.
I got clarification about the register format, so this series fixes
ipa_reg_init_hol_block_timer_val() to work for any supported delay
value.
The delay is based on the IPA core clock, so determining the value
to write for a given period requires access to the current core
clock rate. So the first patch just creates a new function to
provide that.
-Alex
Alex Elder (2):
net: ipa: introduce ipa_clock_rate()
net: ipa: fix HOLB timer calculation
drivers/net/ipa/ipa_clock.c | 6 +++
drivers/net/ipa/ipa_clock.h | 8 ++++
drivers/net/ipa/ipa_endpoint.c | 78 +++++++++++++++++++---------------
3 files changed, 57 insertions(+), 35 deletions(-)
--
2.25.1
