thermal: armada: Change sensors trim default value

Errata #132698 highlights an error in the default value of Tc trim.
Set this parameter to b'011.

Suggested-by: David Sniatkiwicz <davidsn@marvell.com>
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c
index d426b230e1c5..e6025d215cb5 100644
--- a/drivers/thermal/armada_thermal.c
+++ b/drivers/thermal/armada_thermal.c
@@ -46,6 +46,10 @@
 #define CONTROL0_OFFSET                 0x0
 #define CONTROL1_OFFSET                 0x4
 
+/* Errata fields */
+#define CONTROL0_TSEN_TC_TRIM_MASK      0x7
+#define CONTROL0_TSEN_TC_TRIM_VAL       0x3
+
 /* TSEN refers to the temperature sensors within the AP */
 #define CONTROL0_TSEN_START             BIT(0)
 #define CONTROL0_TSEN_RESET             BIT(1)
@@ -161,6 +165,15 @@ static void armada380_init_sensor(struct platform_device *pdev,
         reg &= ~CONTROL1_EXT_TSEN_SW_RESET;
         writel(reg, priv->control1);
         msleep(10);
+
+        /* Set Tsen Tc Trim to correct default value (errata #132698) */
+        if (priv->control0) {
+                reg = readl_relaxed(priv->control0);
+                reg &= ~CONTROL0_TSEN_TC_TRIM_MASK;
+                reg |= CONTROL0_TSEN_TC_TRIM_VAL;
+                writel(reg, priv->control0);
+                msleep(10);
+        }
 }
 
 static void armada_ap806_init_sensor(struct platform_device *pdev,