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Subject[PATCH 5/5] thermal: rockchip: handle the set_trips without the trip points.
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In some cases, some sensors didn't need the trip points, the
set_trips will return {-INT_MAX, INT_MAX} to trigger thermal alarm.

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
---

drivers/thermal/rockchip_thermal.c | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
index f4d4be9..5b9c346 100644
--- a/drivers/thermal/rockchip_thermal.c
+++ b/drivers/thermal/rockchip_thermal.c
@@ -200,6 +200,7 @@ struct rockchip_thermal_data {
#define TSADCV3_AUTO_Q_SEL_EN BIT(1)

#define TSADCV2_INT_SRC_EN(chn) BIT(chn)
+#define TSADCV2_INT_SRC_SHIFT(chn) chn
#define TSADCV2_SHUT_2GPIO_SRC_EN(chn) BIT(4 + (chn))
#define TSADCV2_SHUT_2CRU_SRC_EN(chn) BIT(8 + (chn))

@@ -903,10 +904,22 @@ static int rockchip_thermal_set_trips(void *_sensor, int low, int high)
struct rockchip_thermal_sensor *sensor = _sensor;
struct rockchip_thermal_data *thermal = sensor->thermal;
const struct rockchip_tsadc_chip *tsadc = thermal->chip;
+ u32 int_clr;

dev_dbg(&thermal->pdev->dev, "%s: sensor %d: low: %d, high %d\n",
__func__, sensor->id, low, high);

+ /*
+ * In some cases, some sensors didn't need the trip points, the
+ * set_trips will return {-INT_MAX, INT_MAX} to trigger thermal alarm.
+ */
+ if (high == INT_MAX) {
+ int_clr = readl_relaxed(thermal->regs + TSADCV2_INT_EN);
+ int_clr |= 0 << TSADCV2_INT_SRC_SHIFT(sensor->id);
+ writel_relaxed(int_clr, thermal->regs + TSADCV2_INT_EN);
+ return 0;
+ }
+
tsadc->set_alarm_temp(&tsadc->table,
sensor->id, thermal->regs, high);

--
2.7.4
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