thermal: imx_tmu: Increase the polling interval

Polling every second to check whether the CPU has cooled down is
too frequent.

Allow more time for the CPU to cool down by increasing the polling
interval to 5 seconds by defaut.

This value is used in the absence of the 'polling-delay' devicetree
property.

Signed-off-by: Fabio Estevam <festevam@denx.de>

diff --git a/drivers/thermal/imx_tmu.c b/drivers/thermal/imx_tmu.c
index b877ee3..4721cfb 100644 (file)
--- a/drivers/thermal/imx_tmu.c
+++ b/drivers/thermal/imx_tmu.c
@@ -37,7 +37,7 @@ DECLARE_GLOBAL_DATA_PTR;
 #define TER_ADC_PD             0x40000000
 #define TER_ALPF               0x3
 
-#define IMX_TMU_POLLING_DELAY_MS       1000
+#define IMX_TMU_POLLING_DELAY_MS       5000
 /*
  * i.MX TMU Registers
  */