thermal: imx: add i.MX7 thermal sensor support
This patch adds i.MX7 thermal sensor support, most of the i.MX7 thermal sensor functions are same with i.MX6 except the registers offset/layout, so we move those registers offset/layout definitions to soc data structure. i.MX7 uses single calibration data @25C, the calibration data is located at OCOTP offset 0x4F0, bit[17:9], the formula is as below: Tmeas = (Nmeas - n1) + 25; n1 is the fuse value for 25C. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Bai Ping <ping.bai@nxp.com> Acked-by: Dong Aisheng <aisheng.dong@nxp.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>hifive-unleashed-5.1
Anson Huang
Eduardo Valentin
parent
3966be3c08
commit
f085f672b7
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@ -1,8 +1,13 @@
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* Temperature Monitor (TEMPMON) on Freescale i.MX SoCs
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Required properties:
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- compatible : "fsl,imx6q-tempmon" for i.MX6Q, "fsl,imx6sx-tempmon" for i.MX6SX.
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i.MX6SX has two more IRQs than i.MX6Q, one is IRQ_LOW and the other is IRQ_PANIC,
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- compatible : must be one of following:
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- "fsl,imx6q-tempmon" for i.MX6Q,
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- "fsl,imx6sx-tempmon" for i.MX6SX,
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- "fsl,imx7d-tempmon" for i.MX7S/D.
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- interrupts : the interrupt output of the controller:
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i.MX6Q has one IRQ which will be triggered when temperature is higher than high threshold,
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i.MX6SX and i.MX7S/D have two more IRQs than i.MX6Q, one is IRQ_LOW and the other is IRQ_PANIC,
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when temperature is below than low threshold, IRQ_LOW will be triggered, when temperature
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is higher than panic threshold, system will auto reboot by SRC module.
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- fsl,tempmon : phandle pointer to system controller that contains TEMPMON
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@ -31,35 +31,57 @@
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#define REG_CLR 0x8
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#define REG_TOG 0xc
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#define MISC0 0x0150
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#define MISC0_REFTOP_SELBIASOFF (1 << 3)
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#define MISC1 0x0160
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#define MISC1_IRQ_TEMPHIGH (1 << 29)
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/* i.MX6 specific */
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#define IMX6_MISC0 0x0150
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#define IMX6_MISC0_REFTOP_SELBIASOFF (1 << 3)
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#define IMX6_MISC1 0x0160
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#define IMX6_MISC1_IRQ_TEMPHIGH (1 << 29)
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/* Below LOW and PANIC bits are only for TEMPMON_IMX6SX */
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#define MISC1_IRQ_TEMPLOW (1 << 28)
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#define MISC1_IRQ_TEMPPANIC (1 << 27)
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#define IMX6_MISC1_IRQ_TEMPLOW (1 << 28)
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#define IMX6_MISC1_IRQ_TEMPPANIC (1 << 27)
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#define TEMPSENSE0 0x0180
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#define TEMPSENSE0_ALARM_VALUE_SHIFT 20
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#define TEMPSENSE0_ALARM_VALUE_MASK (0xfff << TEMPSENSE0_ALARM_VALUE_SHIFT)
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#define TEMPSENSE0_TEMP_CNT_SHIFT 8
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#define TEMPSENSE0_TEMP_CNT_MASK (0xfff << TEMPSENSE0_TEMP_CNT_SHIFT)
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#define TEMPSENSE0_FINISHED (1 << 2)
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#define TEMPSENSE0_MEASURE_TEMP (1 << 1)
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#define TEMPSENSE0_POWER_DOWN (1 << 0)
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#define IMX6_TEMPSENSE0 0x0180
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#define IMX6_TEMPSENSE0_ALARM_VALUE_SHIFT 20
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#define IMX6_TEMPSENSE0_ALARM_VALUE_MASK (0xfff << 20)
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#define IMX6_TEMPSENSE0_TEMP_CNT_SHIFT 8
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#define IMX6_TEMPSENSE0_TEMP_CNT_MASK (0xfff << 8)
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#define IMX6_TEMPSENSE0_FINISHED (1 << 2)
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#define IMX6_TEMPSENSE0_MEASURE_TEMP (1 << 1)
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#define IMX6_TEMPSENSE0_POWER_DOWN (1 << 0)
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#define TEMPSENSE1 0x0190
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#define TEMPSENSE1_MEASURE_FREQ 0xffff
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/* Below TEMPSENSE2 is only for TEMPMON_IMX6SX */
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#define TEMPSENSE2 0x0290
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#define TEMPSENSE2_LOW_VALUE_SHIFT 0
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#define TEMPSENSE2_LOW_VALUE_MASK 0xfff
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#define TEMPSENSE2_PANIC_VALUE_SHIFT 16
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#define TEMPSENSE2_PANIC_VALUE_MASK 0xfff0000
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#define IMX6_TEMPSENSE1 0x0190
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#define IMX6_TEMPSENSE1_MEASURE_FREQ 0xffff
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#define IMX6_TEMPSENSE1_MEASURE_FREQ_SHIFT 0
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#define OCOTP_MEM0 0x0480
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#define OCOTP_ANA1 0x04e0
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/* Below TEMPSENSE2 is only for TEMPMON_IMX6SX */
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#define IMX6_TEMPSENSE2 0x0290
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#define IMX6_TEMPSENSE2_LOW_VALUE_SHIFT 0
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#define IMX6_TEMPSENSE2_LOW_VALUE_MASK 0xfff
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#define IMX6_TEMPSENSE2_PANIC_VALUE_SHIFT 16
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#define IMX6_TEMPSENSE2_PANIC_VALUE_MASK 0xfff0000
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/* i.MX7 specific */
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#define IMX7_ANADIG_DIGPROG 0x800
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#define IMX7_TEMPSENSE0 0x300
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#define IMX7_TEMPSENSE0_PANIC_ALARM_SHIFT 18
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#define IMX7_TEMPSENSE0_PANIC_ALARM_MASK (0x1ff << 18)
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#define IMX7_TEMPSENSE0_HIGH_ALARM_SHIFT 9
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#define IMX7_TEMPSENSE0_HIGH_ALARM_MASK (0x1ff << 9)
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#define IMX7_TEMPSENSE0_LOW_ALARM_SHIFT 0
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#define IMX7_TEMPSENSE0_LOW_ALARM_MASK 0x1ff
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#define IMX7_TEMPSENSE1 0x310
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#define IMX7_TEMPSENSE1_MEASURE_FREQ_SHIFT 16
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#define IMX7_TEMPSENSE1_MEASURE_FREQ_MASK (0xffff << 16)
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#define IMX7_TEMPSENSE1_FINISHED (1 << 11)
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#define IMX7_TEMPSENSE1_MEASURE_TEMP (1 << 10)
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#define IMX7_TEMPSENSE1_POWER_DOWN (1 << 9)
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#define IMX7_TEMPSENSE1_TEMP_VALUE_SHIFT 0
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#define IMX7_TEMPSENSE1_TEMP_VALUE_MASK 0x1ff
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/* The driver supports 1 passive trip point and 1 critical trip point */
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enum imx_thermal_trip {
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IMX_TRIP_PASSIVE,
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@ -72,17 +94,114 @@ enum imx_thermal_trip {
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#define TEMPMON_IMX6Q 1
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#define TEMPMON_IMX6SX 2
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#define TEMPMON_IMX7D 3
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struct thermal_soc_data {
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u32 version;
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u32 sensor_ctrl;
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u32 power_down_mask;
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u32 measure_temp_mask;
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u32 measure_freq_ctrl;
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u32 measure_freq_mask;
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u32 measure_freq_shift;
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u32 temp_data;
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u32 temp_value_mask;
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u32 temp_value_shift;
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u32 temp_valid_mask;
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u32 panic_alarm_ctrl;
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u32 panic_alarm_mask;
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u32 panic_alarm_shift;
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u32 high_alarm_ctrl;
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u32 high_alarm_mask;
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u32 high_alarm_shift;
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u32 low_alarm_ctrl;
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u32 low_alarm_mask;
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u32 low_alarm_shift;
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};
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static struct thermal_soc_data thermal_imx6q_data = {
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.version = TEMPMON_IMX6Q,
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.sensor_ctrl = IMX6_TEMPSENSE0,
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.power_down_mask = IMX6_TEMPSENSE0_POWER_DOWN,
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.measure_temp_mask = IMX6_TEMPSENSE0_MEASURE_TEMP,
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.measure_freq_ctrl = IMX6_TEMPSENSE1,
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.measure_freq_shift = IMX6_TEMPSENSE1_MEASURE_FREQ_SHIFT,
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.measure_freq_mask = IMX6_TEMPSENSE1_MEASURE_FREQ,
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.temp_data = IMX6_TEMPSENSE0,
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.temp_value_mask = IMX6_TEMPSENSE0_TEMP_CNT_MASK,
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.temp_value_shift = IMX6_TEMPSENSE0_TEMP_CNT_SHIFT,
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.temp_valid_mask = IMX6_TEMPSENSE0_FINISHED,
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.high_alarm_ctrl = IMX6_TEMPSENSE0,
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.high_alarm_mask = IMX6_TEMPSENSE0_ALARM_VALUE_MASK,
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.high_alarm_shift = IMX6_TEMPSENSE0_ALARM_VALUE_SHIFT,
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};
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static struct thermal_soc_data thermal_imx6sx_data = {
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.version = TEMPMON_IMX6SX,
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.sensor_ctrl = IMX6_TEMPSENSE0,
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.power_down_mask = IMX6_TEMPSENSE0_POWER_DOWN,
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.measure_temp_mask = IMX6_TEMPSENSE0_MEASURE_TEMP,
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.measure_freq_ctrl = IMX6_TEMPSENSE1,
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.measure_freq_shift = IMX6_TEMPSENSE1_MEASURE_FREQ_SHIFT,
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.measure_freq_mask = IMX6_TEMPSENSE1_MEASURE_FREQ,
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.temp_data = IMX6_TEMPSENSE0,
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.temp_value_mask = IMX6_TEMPSENSE0_TEMP_CNT_MASK,
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.temp_value_shift = IMX6_TEMPSENSE0_TEMP_CNT_SHIFT,
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.temp_valid_mask = IMX6_TEMPSENSE0_FINISHED,
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.high_alarm_ctrl = IMX6_TEMPSENSE0,
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.high_alarm_mask = IMX6_TEMPSENSE0_ALARM_VALUE_MASK,
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.high_alarm_shift = IMX6_TEMPSENSE0_ALARM_VALUE_SHIFT,
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.panic_alarm_ctrl = IMX6_TEMPSENSE2,
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.panic_alarm_mask = IMX6_TEMPSENSE2_PANIC_VALUE_MASK,
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.panic_alarm_shift = IMX6_TEMPSENSE2_PANIC_VALUE_SHIFT,
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.low_alarm_ctrl = IMX6_TEMPSENSE2,
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.low_alarm_mask = IMX6_TEMPSENSE2_LOW_VALUE_MASK,
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.low_alarm_shift = IMX6_TEMPSENSE2_LOW_VALUE_SHIFT,
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};
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static struct thermal_soc_data thermal_imx7d_data = {
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.version = TEMPMON_IMX7D,
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.sensor_ctrl = IMX7_TEMPSENSE1,
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.power_down_mask = IMX7_TEMPSENSE1_POWER_DOWN,
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.measure_temp_mask = IMX7_TEMPSENSE1_MEASURE_TEMP,
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.measure_freq_ctrl = IMX7_TEMPSENSE1,
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.measure_freq_shift = IMX7_TEMPSENSE1_MEASURE_FREQ_SHIFT,
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.measure_freq_mask = IMX7_TEMPSENSE1_MEASURE_FREQ_MASK,
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.temp_data = IMX7_TEMPSENSE1,
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.temp_value_mask = IMX7_TEMPSENSE1_TEMP_VALUE_MASK,
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.temp_value_shift = IMX7_TEMPSENSE1_TEMP_VALUE_SHIFT,
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.temp_valid_mask = IMX7_TEMPSENSE1_FINISHED,
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.panic_alarm_ctrl = IMX7_TEMPSENSE1,
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.panic_alarm_mask = IMX7_TEMPSENSE0_PANIC_ALARM_MASK,
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.panic_alarm_shift = IMX7_TEMPSENSE0_PANIC_ALARM_SHIFT,
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.high_alarm_ctrl = IMX7_TEMPSENSE0,
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.high_alarm_mask = IMX7_TEMPSENSE0_HIGH_ALARM_MASK,
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.high_alarm_shift = IMX7_TEMPSENSE0_HIGH_ALARM_SHIFT,
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.low_alarm_ctrl = IMX7_TEMPSENSE0,
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.low_alarm_mask = IMX7_TEMPSENSE0_LOW_ALARM_MASK,
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.low_alarm_shift = IMX7_TEMPSENSE0_LOW_ALARM_SHIFT,
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};
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struct imx_thermal_data {
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@ -107,31 +226,42 @@ struct imx_thermal_data {
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static void imx_set_panic_temp(struct imx_thermal_data *data,
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int panic_temp)
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{
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const struct thermal_soc_data *soc_data = data->socdata;
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struct regmap *map = data->tempmon;
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int critical_value;
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critical_value = (data->c2 - panic_temp) / data->c1;
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regmap_write(map, TEMPSENSE2 + REG_CLR, TEMPSENSE2_PANIC_VALUE_MASK);
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regmap_write(map, TEMPSENSE2 + REG_SET, critical_value <<
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TEMPSENSE2_PANIC_VALUE_SHIFT);
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regmap_write(map, soc_data->panic_alarm_ctrl + REG_CLR,
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soc_data->panic_alarm_mask);
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regmap_write(map, soc_data->panic_alarm_ctrl + REG_SET,
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critical_value << soc_data->panic_alarm_shift);
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}
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static void imx_set_alarm_temp(struct imx_thermal_data *data,
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int alarm_temp)
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{
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struct regmap *map = data->tempmon;
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const struct thermal_soc_data *soc_data = data->socdata;
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int alarm_value;
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data->alarm_temp = alarm_temp;
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alarm_value = (data->c2 - alarm_temp) / data->c1;
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regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_ALARM_VALUE_MASK);
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regmap_write(map, TEMPSENSE0 + REG_SET, alarm_value <<
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TEMPSENSE0_ALARM_VALUE_SHIFT);
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if (data->socdata->version == TEMPMON_IMX7D)
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alarm_value = alarm_temp / 1000 + data->c1 - 25;
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else
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alarm_value = (data->c2 - alarm_temp) / data->c1;
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regmap_write(map, soc_data->high_alarm_ctrl + REG_CLR,
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soc_data->high_alarm_mask);
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regmap_write(map, soc_data->high_alarm_ctrl + REG_SET,
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alarm_value << soc_data->high_alarm_shift);
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}
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static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
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{
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struct imx_thermal_data *data = tz->devdata;
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const struct thermal_soc_data *soc_data = data->socdata;
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struct regmap *map = data->tempmon;
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unsigned int n_meas;
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bool wait;
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@ -139,16 +269,18 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
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if (data->mode == THERMAL_DEVICE_ENABLED) {
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/* Check if a measurement is currently in progress */
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regmap_read(map, TEMPSENSE0, &val);
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wait = !(val & TEMPSENSE0_FINISHED);
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regmap_read(map, soc_data->temp_data, &val);
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wait = !(val & soc_data->temp_valid_mask);
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} else {
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/*
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* Every time we measure the temperature, we will power on the
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* temperature sensor, enable measurements, take a reading,
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* disable measurements, power off the temperature sensor.
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*/
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regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_POWER_DOWN);
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regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_MEASURE_TEMP);
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regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
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soc_data->power_down_mask);
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regmap_write(map, soc_data->sensor_ctrl + REG_SET,
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soc_data->measure_temp_mask);
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wait = true;
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}
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@ -160,22 +292,28 @@ static int imx_get_temp(struct thermal_zone_device *tz, int *temp)
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if (wait)
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usleep_range(20, 50);
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regmap_read(map, TEMPSENSE0, &val);
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regmap_read(map, soc_data->temp_data, &val);
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if (data->mode != THERMAL_DEVICE_ENABLED) {
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regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_MEASURE_TEMP);
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regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_POWER_DOWN);
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regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
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soc_data->measure_temp_mask);
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regmap_write(map, soc_data->sensor_ctrl + REG_SET,
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soc_data->power_down_mask);
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}
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if ((val & TEMPSENSE0_FINISHED) == 0) {
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if ((val & soc_data->temp_valid_mask) == 0) {
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dev_dbg(&tz->device, "temp measurement never finished\n");
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return -EAGAIN;
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}
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n_meas = (val & TEMPSENSE0_TEMP_CNT_MASK) >> TEMPSENSE0_TEMP_CNT_SHIFT;
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n_meas = (val & soc_data->temp_value_mask)
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>> soc_data->temp_value_shift;
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/* See imx_init_calib() for formula derivation */
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*temp = data->c2 - n_meas * data->c1;
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if (data->socdata->version == TEMPMON_IMX7D)
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*temp = (n_meas - data->c1 + 25) * 1000;
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else
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*temp = data->c2 - n_meas * data->c1;
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/* Update alarm value to next higher trip point for TEMPMON_IMX6Q */
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if (data->socdata->version == TEMPMON_IMX6Q) {
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@ -219,21 +357,26 @@ static int imx_set_mode(struct thermal_zone_device *tz,
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{
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struct imx_thermal_data *data = tz->devdata;
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struct regmap *map = data->tempmon;
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const struct thermal_soc_data *soc_data = data->socdata;
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if (mode == THERMAL_DEVICE_ENABLED) {
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tz->polling_delay = IMX_POLLING_DELAY;
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tz->passive_delay = IMX_PASSIVE_DELAY;
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regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_POWER_DOWN);
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regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_MEASURE_TEMP);
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regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
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soc_data->power_down_mask);
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regmap_write(map, soc_data->sensor_ctrl + REG_SET,
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soc_data->measure_temp_mask);
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if (!data->irq_enabled) {
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data->irq_enabled = true;
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enable_irq(data->irq);
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}
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} else {
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regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_MEASURE_TEMP);
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regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_POWER_DOWN);
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regmap_write(map, soc_data->sensor_ctrl + REG_CLR,
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soc_data->measure_temp_mask);
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regmap_write(map, soc_data->sensor_ctrl + REG_SET,
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soc_data->power_down_mask);
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tz->polling_delay = 0;
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tz->passive_delay = 0;
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@ -354,6 +497,15 @@ static int imx_init_calib(struct platform_device *pdev, u32 ocotp_ana1)
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return -EINVAL;
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}
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/*
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* On i.MX7D, we only use the calibration data at 25C to get the temp,
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* Tmeas = ( Nmeas - n1) + 25; n1 is the fuse value for 25C.
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*/
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if (data->socdata->version == TEMPMON_IMX7D) {
|
||||
data->c1 = (ocotp_ana1 >> 9) & 0x1ff;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* The sensor is calibrated at 25 °C (aka T1) and the value measured
|
||||
* (aka N1) at this temperature is provided in bits [31:20] in the
|
||||
|
|
@ -492,6 +644,7 @@ static irqreturn_t imx_thermal_alarm_irq_thread(int irq, void *dev)
|
|||
static const struct of_device_id of_imx_thermal_match[] = {
|
||||
{ .compatible = "fsl,imx6q-tempmon", .data = &thermal_imx6q_data, },
|
||||
{ .compatible = "fsl,imx6sx-tempmon", .data = &thermal_imx6sx_data, },
|
||||
{ .compatible = "fsl,imx7d-tempmon", .data = &thermal_imx7d_data, },
|
||||
{ /* end */ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, of_imx_thermal_match);
|
||||
|
|
@ -523,14 +676,15 @@ static int imx_thermal_probe(struct platform_device *pdev)
|
|||
|
||||
/* make sure the IRQ flag is clear before enabling irq on i.MX6SX */
|
||||
if (data->socdata->version == TEMPMON_IMX6SX) {
|
||||
regmap_write(map, MISC1 + REG_CLR, MISC1_IRQ_TEMPHIGH |
|
||||
MISC1_IRQ_TEMPLOW | MISC1_IRQ_TEMPPANIC);
|
||||
regmap_write(map, IMX6_MISC1 + REG_CLR,
|
||||
IMX6_MISC1_IRQ_TEMPHIGH | IMX6_MISC1_IRQ_TEMPLOW
|
||||
| IMX6_MISC1_IRQ_TEMPPANIC);
|
||||
/*
|
||||
* reset value of LOW ALARM is incorrect, set it to lowest
|
||||
* value to avoid false trigger of low alarm.
|
||||
*/
|
||||
regmap_write(map, TEMPSENSE2 + REG_SET,
|
||||
TEMPSENSE2_LOW_VALUE_MASK);
|
||||
regmap_write(map, data->socdata->low_alarm_ctrl + REG_SET,
|
||||
data->socdata->low_alarm_mask);
|
||||
}
|
||||
|
||||
data->irq = platform_get_irq(pdev, 0);
|
||||
|
|
@ -557,11 +711,17 @@ static int imx_thermal_probe(struct platform_device *pdev)
|
|||
}
|
||||
|
||||
/* Make sure sensor is in known good state for measurements */
|
||||
regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_POWER_DOWN);
|
||||
regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_MEASURE_TEMP);
|
||||
regmap_write(map, TEMPSENSE1 + REG_CLR, TEMPSENSE1_MEASURE_FREQ);
|
||||
regmap_write(map, MISC0 + REG_SET, MISC0_REFTOP_SELBIASOFF);
|
||||
regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_POWER_DOWN);
|
||||
regmap_write(map, data->socdata->sensor_ctrl + REG_CLR,
|
||||
data->socdata->power_down_mask);
|
||||
regmap_write(map, data->socdata->sensor_ctrl + REG_CLR,
|
||||
data->socdata->measure_temp_mask);
|
||||
regmap_write(map, data->socdata->measure_freq_ctrl + REG_CLR,
|
||||
data->socdata->measure_freq_mask);
|
||||
if (data->socdata->version != TEMPMON_IMX7D)
|
||||
regmap_write(map, IMX6_MISC0 + REG_SET,
|
||||
IMX6_MISC0_REFTOP_SELBIASOFF);
|
||||
regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
|
||||
data->socdata->power_down_mask);
|
||||
|
||||
data->policy = cpufreq_cpu_get(0);
|
||||
if (!data->policy) {
|
||||
|
|
@ -626,16 +786,20 @@ static int imx_thermal_probe(struct platform_device *pdev)
|
|||
data->temp_passive / 1000);
|
||||
|
||||
/* Enable measurements at ~ 10 Hz */
|
||||
regmap_write(map, TEMPSENSE1 + REG_CLR, TEMPSENSE1_MEASURE_FREQ);
|
||||
regmap_write(map, data->socdata->measure_freq_ctrl + REG_CLR,
|
||||
data->socdata->measure_freq_mask);
|
||||
measure_freq = DIV_ROUND_UP(32768, 10); /* 10 Hz */
|
||||
regmap_write(map, TEMPSENSE1 + REG_SET, measure_freq);
|
||||
regmap_write(map, data->socdata->measure_freq_ctrl + REG_SET,
|
||||
measure_freq << data->socdata->measure_freq_shift);
|
||||
imx_set_alarm_temp(data, data->temp_passive);
|
||||
|
||||
if (data->socdata->version == TEMPMON_IMX6SX)
|
||||
imx_set_panic_temp(data, data->temp_critical);
|
||||
|
||||
regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_POWER_DOWN);
|
||||
regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_MEASURE_TEMP);
|
||||
regmap_write(map, data->socdata->sensor_ctrl + REG_CLR,
|
||||
data->socdata->power_down_mask);
|
||||
regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
|
||||
data->socdata->measure_temp_mask);
|
||||
|
||||
data->irq_enabled = true;
|
||||
data->mode = THERMAL_DEVICE_ENABLED;
|
||||
|
|
@ -661,7 +825,8 @@ static int imx_thermal_remove(struct platform_device *pdev)
|
|||
struct regmap *map = data->tempmon;
|
||||
|
||||
/* Disable measurements */
|
||||
regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_POWER_DOWN);
|
||||
regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
|
||||
data->socdata->power_down_mask);
|
||||
if (!IS_ERR(data->thermal_clk))
|
||||
clk_disable_unprepare(data->thermal_clk);
|
||||
|
||||
|
|
@ -684,8 +849,10 @@ static int imx_thermal_suspend(struct device *dev)
|
|||
* temperature will be read as the thermal sensor is powered
|
||||
* down.
|
||||
*/
|
||||
regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_MEASURE_TEMP);
|
||||
regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_POWER_DOWN);
|
||||
regmap_write(map, data->socdata->sensor_ctrl + REG_CLR,
|
||||
data->socdata->measure_temp_mask);
|
||||
regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
|
||||
data->socdata->power_down_mask);
|
||||
data->mode = THERMAL_DEVICE_DISABLED;
|
||||
clk_disable_unprepare(data->thermal_clk);
|
||||
|
||||
|
|
@ -702,8 +869,10 @@ static int imx_thermal_resume(struct device *dev)
|
|||
if (ret)
|
||||
return ret;
|
||||
/* Enabled thermal sensor after resume */
|
||||
regmap_write(map, TEMPSENSE0 + REG_CLR, TEMPSENSE0_POWER_DOWN);
|
||||
regmap_write(map, TEMPSENSE0 + REG_SET, TEMPSENSE0_MEASURE_TEMP);
|
||||
regmap_write(map, data->socdata->sensor_ctrl + REG_CLR,
|
||||
data->socdata->power_down_mask);
|
||||
regmap_write(map, data->socdata->sensor_ctrl + REG_SET,
|
||||
data->socdata->measure_temp_mask);
|
||||
data->mode = THERMAL_DEVICE_ENABLED;
|
||||
|
||||
return 0;
|
||||
|
|
|
|||
Loading…
Reference in New Issue