[PATCH v5 09/11] thermal: armada: Change sensors trim default value
From: Miquel Raynal <hidden>
Date: 2017-12-19 13:57:17
Also in:
linux-devicetree, linux-pm
Subsystem:
marvell mvebu thermal driver, the rest, thermal · Maintainers:
Miquel Raynal, Linus Torvalds, Rafael J. Wysocki, Daniel Lezcano
Errata #132698 highlights an error in the default value of Tc trim. Set this parameter to b'011. Suggested-by: David Sniatkiwicz <redacted> Signed-off-by: Miquel Raynal <redacted> Reviewed-by: Gregory CLEMENT <redacted> --- 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 40b57ba2f55b..1a7e24da0b9e 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,
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2.11.0