When periodic mode is not enabled, it is neccessary to force reads.
Signed-off-by: Pavel Machek <[email protected]>
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index 634b6ce..2fde78c 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -43,6 +43,8 @@
#include "ti-bandgap.h"
+static int ti_bandgap_force_single_read(struct ti_bandgap *bgp, int id);
+
/*** Helper functions to access registers and their bitfields ***/
/**
@@ -852,14 +831,21 @@ int ti_bandgap_read_temperature(struct ti_bandgap *bgp,
int id,
if (ret)
return ret;
+ if (!TI_BANDGAP_HAS(bgp, MODE_CONFIG)) {
+ ret = ti_bandgap_force_single_read(bgp, id);
+ if (ret)
+ return ret;
+ }
+
spin_lock(&bgp->lock);
temp = ti_bandgap_read_temp(bgp, id);
--
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(cesky, pictures)
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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