diff options
| author | Lokesh Vutla <lokeshvutla@ti.com> | 2020-03-05 13:57:14 +0530 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2020-03-16 12:40:42 +0100 |
| commit | 92fd86864ec4ac089de47f0f1f4c47418b343448 (patch) | |
| tree | 70a100e6612405f9d6ef62770c2c46a465e3620b /drivers/clocksource | |
| parent | aff7665dc64b60c1f93d6e52fde297ae6b8999ae (diff) | |
| download | linux-92fd86864ec4ac089de47f0f1f4c47418b343448.tar.bz2 | |
clocksource/drivers/timer-ti-dm: Add support to get pwm current status
omap_dm_timer_ops provide support to configure the pwm but there is no
support to get the current status. For configuring pwm it is advised to
check the current hw status instead of relying on pwm framework. So
implement a new timer ops to get the current status of pwm.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Tony Lindgen <tony@atomide.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200305082715.15861-6-lokeshvutla@ti.com
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/timer-ti-dm.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/clocksource/timer-ti-dm.c b/drivers/clocksource/timer-ti-dm.c index b565b8456e5c..73ac73efdef8 100644 --- a/drivers/clocksource/timer-ti-dm.c +++ b/drivers/clocksource/timer-ti-dm.c @@ -627,6 +627,20 @@ static int omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on, return 0; } +static int omap_dm_timer_get_pwm_status(struct omap_dm_timer *timer) +{ + u32 l; + + if (unlikely(!timer)) + return -EINVAL; + + omap_dm_timer_enable(timer); + l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG); + omap_dm_timer_disable(timer); + + return l; +} + static int omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler) { @@ -927,6 +941,7 @@ static const struct omap_dm_timer_ops dmtimer_ops = { .set_load = omap_dm_timer_set_load, .set_match = omap_dm_timer_set_match, .set_pwm = omap_dm_timer_set_pwm, + .get_pwm_status = omap_dm_timer_get_pwm_status, .set_prescaler = omap_dm_timer_set_prescaler, .read_counter = omap_dm_timer_read_counter, .write_counter = omap_dm_timer_write_counter, |