The patch titled
Subject: platform-x86: intel_mid_thermal: turn off thermistor voltage by default
has been added to the -mm tree. Its filename is
platform-x86-intel_mid_thermal-turn-off-thermistor-voltage-by-default.patch
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From: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Subject: platform-x86: intel_mid_thermal: turn off thermistor voltage by default
Instead of complaining that the voltage is on, we can just ask the MSIC to
turn the voltage off. This should save some power.
Voltage for thermistors is turned on when ADC conversion is initiated.
Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Signed-off-by: Alan Cox <alan@xxxxxxxxxxxxxxx>
Acked-by: Durgadoss R <durgadoss.r@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Matthew Garrett <mjg@xxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/platform/x86/intel_mid_thermal.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff -puN drivers/platform/x86/intel_mid_thermal.c~platform-x86-intel_mid_thermal-turn-off-thermistor-voltage-by-default drivers/platform/x86/intel_mid_thermal.c
--- a/drivers/platform/x86/intel_mid_thermal.c~platform-x86-intel_mid_thermal-turn-off-thermistor-voltage-by-default
+++ a/drivers/platform/x86/intel_mid_thermal.c
@@ -360,8 +360,10 @@ static int mid_initialize_adc(struct dev
if (ret)
return ret;
- if (data & MSIC_ADCTHERM_MASK)
- dev_warn(dev, "ADCTHERM already set");
+ data &= ~MSIC_ADCTHERM_MASK;
+ ret = intel_msic_reg_write(INTEL_MSIC_ADC1CNTL3, data);
+ if (ret)
+ return ret;
/* Index of the first channel in which the stop bit is set */
channel_index = find_free_channel();
_
Subject: Subject: platform-x86: intel_mid_thermal: turn off thermistor voltage by default
Patches currently in -mm which might be from mika.westerberg@xxxxxxxxxxxxxxx are
linux-next.patch
platform-x86-intel_mid_thermal-add-msic_thermal-alias.patch
platform-x86-intel_mid_thermal-convert-to-use-intel-msic-api.patch
platform-x86-intel_mid_thermal-turn-off-thermistor-voltage-by-default.patch
intel_mid_powerbtn-use-msic-read-write-instead-of-ipc_scu.patch
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