[PATCH v2] drivers: thermal: tsens: Work with old DTBs

[Amit Kucheria]

In order for the old DTBs to continue working, the new interrupt code
must not return an error if interrupts are not defined. Don't return an
error in case of -ENXIO.

Fixes: 634e11d5b450a ("drivers: thermal: tsens: Add interrupt support")
Suggested-by: Stephan Gerhold <stephan@xxxxxxxxxxx>
Signed-off-by: Amit Kucheria <amit.kucheria@xxxxxxxxxx>
---
 drivers/thermal/qcom/tsens.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
index 015e7d2015985..0e7cf52369326 100644
--- a/drivers/thermal/qcom/tsens.c
+++ b/drivers/thermal/qcom/tsens.c
@@ -110,6 +110,9 @@ static int tsens_register(struct tsens_priv *priv)
 	irq = platform_get_irq_byname(pdev, "uplow");
 	if (irq < 0) {
 		ret = irq;
+		/* For old DTs with no IRQ defined */
+		if (irq == -ENXIO)
+			ret = 0;
 		goto err_put_device;
 	}
 
-- 
2.20.1