PWM channel 4 has its autoreload bit located at different position. This patch fixes the driver to account for that.
This fixes a problem with the clocksource hanging after it overflows because it is not reloaded any more. Signed-off-by: Tomasz Figa <[email protected]> --- drivers/clocksource/samsung_pwm_timer.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) Changes since v4: - made the new definition more readable. diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c index 3fa5b07..89947c3 100644 --- a/drivers/clocksource/samsung_pwm_timer.c +++ b/drivers/clocksource/samsung_pwm_timer.c @@ -47,7 +47,11 @@ #define TCON_START(chan) (1 << (4 * (chan) + 0)) #define TCON_MANUALUPDATE(chan) (1 << (4 * (chan) + 1)) #define TCON_INVERT(chan) (1 << (4 * (chan) + 2)) -#define TCON_AUTORELOAD(chan) (1 << (4 * (chan) + 3)) +#define _TCON_AUTORELOAD(chan) (1 << (4 * (chan) + 3)) +#define _TCON_AUTORELOAD4(chan) (1 << (4 * (chan) + 2)) +/* Position of autoreload bit of channel 4 (5 in TCON reg.) is different. */ +#define TCON_AUTORELOAD(chan) \ + ((chan < 5) ? _TCON_AUTORELOAD(chan) : _TCON_AUTORELOAD4(chan)) DEFINE_SPINLOCK(samsung_pwm_lock); EXPORT_SYMBOL(samsung_pwm_lock); -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
