From: Pavel Machek <pavel@ucw.cz>
Date: Tue, 24 Mar 2015 22:20:21 +0000 (+0100)
Subject: ti-soc-thermal: request temperature periodically if hw can't do that itself
X-Git-Tag: MMI-PSA29.97-13-9~9872^2^2^2~10
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=95d079ef6710e0f60dd87d887a3cfee5bf25af5f;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

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>
---

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);