mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-21 22:47:56 +00:00
96f10c9d7a
Use improved tsens patch proposed upstream. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
72 lines
2.1 KiB
Diff
72 lines
2.1 KiB
Diff
From b3e8bd33b84a6b6c863bd1733bd15b5f1483b8ab Mon Sep 17 00:00:00 2001
|
|
From: Ansuel Smith <ansuelsmth@gmail.com>
|
|
Date: Wed, 25 Nov 2020 17:06:55 +0100
|
|
Subject: [PATCH 05/10] drivers: thermal: tsens: Fix bug in sensor enable for
|
|
msm8960
|
|
|
|
Device based on tsens VER_0 contains a hardware bug that results in some
|
|
problem with sensor enablement. Sensor id 6-11 can't be enabled
|
|
selectively and all of them must be enabled in one step.
|
|
|
|
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
|
|
Acked-by: Thara Gopinath <thara.gopinath@linaro.org>
|
|
---
|
|
drivers/thermal/qcom/tsens-8960.c | 23 ++++++++++++++++++++---
|
|
1 file changed, 20 insertions(+), 3 deletions(-)
|
|
|
|
diff --git a/drivers/thermal/qcom/tsens-8960.c b/drivers/thermal/qcom/tsens-8960.c
|
|
index 86585f439985..95fcccafae14 100644
|
|
--- a/drivers/thermal/qcom/tsens-8960.c
|
|
+++ b/drivers/thermal/qcom/tsens-8960.c
|
|
@@ -27,9 +27,9 @@
|
|
#define EN BIT(0)
|
|
#define SW_RST BIT(1)
|
|
#define SENSOR0_EN BIT(3)
|
|
+#define MEASURE_PERIOD BIT(18)
|
|
#define SLP_CLK_ENA BIT(26)
|
|
#define SLP_CLK_ENA_8660 BIT(24)
|
|
-#define MEASURE_PERIOD 1
|
|
#define SENSOR0_SHIFT 3
|
|
|
|
/* INT_STATUS_ADDR bitmasks */
|
|
@@ -126,17 +126,34 @@ static int resume_8960(struct tsens_priv *priv)
|
|
static int enable_8960(struct tsens_priv *priv, int id)
|
|
{
|
|
int ret;
|
|
- u32 reg, mask;
|
|
+ u32 reg, mask = BIT(id);
|
|
|
|
ret = regmap_read(priv->tm_map, CNTL_ADDR, ®);
|
|
if (ret)
|
|
return ret;
|
|
|
|
- mask = BIT(id + SENSOR0_SHIFT);
|
|
+ /* HARDWARE BUG:
|
|
+ * On platforms with more than 6 sensors, all remaining sensors
|
|
+ * must be enabled together, otherwise undefined results are expected.
|
|
+ * (Sensor 6-7 disabled, Sensor 3 disabled...) In the original driver,
|
|
+ * all the sensors are enabled in one step hence this bug is not
|
|
+ * triggered.
|
|
+ */
|
|
+ if (id > 5)
|
|
+ mask = GENMASK(10, 6);
|
|
+
|
|
+ mask <<= SENSOR0_SHIFT;
|
|
+
|
|
+ /* Sensors already enabled. Skip. */
|
|
+ if ((reg & mask) == mask)
|
|
+ return 0;
|
|
+
|
|
ret = regmap_write(priv->tm_map, CNTL_ADDR, reg | SW_RST);
|
|
if (ret)
|
|
return ret;
|
|
|
|
+ reg |= MEASURE_PERIOD;
|
|
+
|
|
if (priv->num_sensors > 1)
|
|
reg |= mask | SLP_CLK_ENA | EN;
|
|
else
|
|
--
|
|
2.30.2
|
|
|