From: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
Record how many TSCs are found in struct rcar_gen3_thermal_priv, this is
needed to be able to add hardware interrupts for trip points later. Also
add a check to make sure at least one TSC is found.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Reviewed-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Eduardo Valentin <edubezval@xxxxxxxxx>
(cherry picked from commit 97dad1f1d2b3f2a2a77551849357b7ac38b0b6ff)
Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
---
drivers/thermal/rcar_gen3_thermal.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c
index 9b6bc03dd142..4a08b35533dc 100644
--- a/drivers/thermal/rcar_gen3_thermal.c
+++ b/drivers/thermal/rcar_gen3_thermal.c
@@ -75,6 +75,7 @@ struct rcar_gen3_thermal_tsc {
struct rcar_gen3_thermal_priv {
struct rcar_gen3_thermal_tsc *tscs[TSC_MAX_NUM];
+ unsigned int num_tscs;
};
struct rcar_gen3_thermal_data {
@@ -307,6 +308,13 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
tsc->zone = zone;
}
+ priv->num_tscs = i;
+
+ if (!priv->num_tscs) {
+ ret = -ENODEV;
+ goto error_unregister;
+ }
+
return 0;
error_unregister:
--
2.1.4
