tree 2c3a38a5419fa19b716d5aad77a48702257dc30a
parent cd378881426379a62a7fe67f34b8cbe738302022
author David Rivshin <drivshin@allworx.com> 1454128013 -0500
committer Thierry Reding <thierry.reding@gmail.com> 1458749507 +0100

pwm: omap-dmtimer: Round load and match values rather than truncate

When converting period and duty_cycle from nanoseconds to fclk cycles,
the error introduced by the integer division can be appreciable, especially
in the case of slow fclk or short period. Use DIV_ROUND_CLOSEST_ULL() so
that the error is kept to +/- 0.5 clock cycles.

Fixes: 6604c6556db9 ("pwm: Add PWM driver for OMAP using dual-mode timers")
Signed-off-by: David Rivshin <drivshin@allworx.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>