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 <tomasz.f...@gmail.com>
Tested-by: Tomasz Figa <tomasz.f...@gmail.com>
---
 drivers/clocksource/samsung_pwm_timer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clocksource/samsung_pwm_timer.c 
b/drivers/clocksource/samsung_pwm_timer.c
index 3fa5b07..e238fb0 100644
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -47,7 +47,8 @@
 #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) \
+                                               + (((chan) < 5) ? 3 : 2)))
 
 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 majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to