[PATCHv2] ti-soc-thermal: request temperature periodically if hw can't do that itself
From: Pavel Machek <hidden>
Date: 2015-01-18 20:24:52
Also in:
linux-omap, linux-pm, lkml
Subsystem:
the rest, thermal, ti bandgap and thermal driver · Maintainers:
Linus Torvalds, Rafael J. Wysocki, Daniel Lezcano, Eduardo Valentin, Keerthy
When periodic mode is not enabled, it is neccessary to force reads. Signed-off-by: Pavel Machek <redacted>
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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