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authorPavel Machek <pavel@ucw.cz>2015-03-24 23:20:21 +0100
committerEduardo Valentin <edubezval@gmail.com>2015-05-04 21:27:54 -0700
commit95d079ef6710e0f60dd87d887a3cfee5bf25af5f (patch)
tree40302ee95a3a6123f23fd39f58f8f69814ed0bb0 /drivers/thermal
parenta4296d19b5e19a5c9a3979e9595fa26c40af67b5 (diff)
downloadlinux-95d079ef6710e0f60dd87d887a3cfee5bf25af5f.tar.bz2
ti-soc-thermal: request temperature periodically if hw can't do that itself
When periodic mode is not enabled, it is neccessary to force reads. Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/ti-soc-thermal/ti-bandgap.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index 12f3ee5337bb..63e2f5ce7e94 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 ***/
/**
@@ -829,6 +831,12 @@ 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);
spin_unlock(&bgp->lock);