[PATCH v3 08/11] thermal: armada: Change sensors trim default value

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




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

Suggested-by: David Sniatkiwicz <davidsn@xxxxxxxxxxx>
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxxxxxxxxx>
---
 drivers/thermal/armada_thermal.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/thermal/armada_thermal.c b/drivers/thermal/armada_thermal.c
index da58a8961a37..be141ca53e83 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)
@@ -160,6 +164,15 @@ 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,
-- 
2.11.0

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux