From: Vincent Cheng <vincent.cheng...@renesas.com>
This series fixes a race condition that may result in the output clock
not aligned to internal 1 PPS clock.
Part of device initialization is to align the rising edge of output
clocks to the internal rising edge of the 1 PPS clock. If the system
APLL and DPLL are not locked when this alignment occurs, the alignment
fails and a fixed offset between the internal 1 PPS clock and the
output clock occurs.
If a clock is dynamically enabled after power-up, the output clock
also needs to be aligned to the internal 1 PPS clock.
v3:
Suggested by: Jakub Kicinski <k...@kernel.org>
- Remove unnecessary 'err' variable
- Increase msleep()/loop accuracy by using jiffies in while()
- No empty lines between variables
- No empty lines between call and the if
- parenthesis around a == b are unnecessary
- Inconsistent \n usage in dev_()
- Remove unnecessary empty line
- Leave string format in place so static code checkers can
validate arguments
v2:
Suggested by: Richard Cochran <richardcoch...@gmail.com>
- Added const to "char * fmt"
- Break unrelated header change into separate patch
Vincent Cheng (7):
ptp: ptp_clockmatrix: Add wait_for_sys_apll_dpll_lock.
ptp: ptp_clockmatrix: Add alignment of 1 PPS to idtcm_perout_enable.
ptp: ptp_clockmatrix: Remove unused header declarations.
ptp: ptp_clockmatrix: Clean-up dev_*() messages.
ptp: ptp_clockmatrix: Coding style - tighten vertical spacing.
ptp: ptp_clockmatrix: Simplify code - remove unnecessary `err`
variable.
ptp: ptp_clockmatrix: clean-up - parenthesis around a == b are
unnecessary
drivers/ptp/idt8a340_reg.h | 10 ++
drivers/ptp/ptp_clockmatrix.c | 313 ++++++++++++++++++------------------------
drivers/ptp/ptp_clockmatrix.h | 17 ++-
3 files changed, 162 insertions(+), 178 deletions(-)
--
2.7.4
