Messages in this thread | | | From | Alex Elder <> | Subject | [PATCH net-next 0/2] net: ipa: fix HOLB timer register use | Date | Fri, 3 Jul 2020 16:23:33 -0500 |
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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
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