diff options
| author | Miquel Raynal <miquel.raynal@free-electrons.com> | 2017-12-22 19:14:11 +0300 |
|---|---|---|
| committer | Eduardo Valentin <edubezval@gmail.com> | 2018-01-02 00:23:04 +0300 |
| commit | 8c0b888f6610d0ebbc4bdfb52d2fef9f4a11adfc (patch) | |
| tree | de5a3978603f37d8d3304467741fa0afcf64c624 /drivers/thermal | |
| parent | a9d58a1aa35f4c01a075303b5c7dcde84e7df124 (diff) | |
| download | linux-8c0b888f6610d0ebbc4bdfb52d2fef9f4a11adfc.tar.xz | |
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>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/armada_thermal.c | 13 |
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, |