[PATCH 0/1] Amlogic: update multi_v7_defconfig for the temperature sensor

[PATCH 0/1] Amlogic: update multi_v7_defconfig for the temperature sensor

[Martin Blumenstingl]

Linux 5.1 gained support for the temperature sensor on the 32-bit
Amlogic SoCs. This requires the eFuse driver and the SAR ADC driver to
be enabled in the kernel config. This last bit was missing so far.

Three boards already have a iio-hwmon node defined. The driver for this
is already enabled in multi_v7_defconfig: CONFIG_SENSORS_IIO_HWMON


Martin Blumenstingl (1):
  ARM: multi_v7_defconfig: enable the Amlogic Meson ADC and eFuse
    drivers

 arch/arm/configs/multi_v7_defconfig | 2 ++
 1 file changed, 2 insertions(+)

-- 
2.21.0


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[PATCH 1/1] ARM: multi_v7_defconfig: enable the Amlogic Meson ADC and eFuse drivers

[Martin Blumenstingl]

With the SAR ADC driver ADC measurements can be taken though the IIO
framework. Additionally the SAR ADC has a channel which is connected to
an internal temperature sensor. The calibration data for this internal
temperature sensor is stored in the eFuse.

Enable the SAR ADC driver and the eFuse driver for the 32-bit Amlogic
Meson SoCs so we can expose the chip temperature to userspace through
the IIO hwmon driver (whose config option is already enabled:
CONFIG_SENSORS_IIO_HWMON=y).

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
 arch/arm/configs/multi_v7_defconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index c75051b9392c..11d0395f3f0c 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -925,6 +925,7 @@ CONFIG_AT91_SAMA5D2_ADC=m
 CONFIG_BERLIN2_ADC=m
 CONFIG_CPCAP_ADC=m
 CONFIG_EXYNOS_ADC=m
+CONFIG_MESON_SARADC=m
 CONFIG_STM32_ADC_CORE=m
 CONFIG_STM32_ADC=m
 CONFIG_STM32_DFSDM_ADC=m
@@ -979,6 +980,7 @@ CONFIG_PHY_UNIPHIER_USB2=y
 CONFIG_OMAP_USB2=y
 CONFIG_TI_PIPE3=y
 CONFIG_TWL4030_USB=m
+CONFIG_MESON_MX_EFUSE=m
 CONFIG_NVMEM_IMX_OCOTP=y
 CONFIG_NVMEM_SUNXI_SID=y
 CONFIG_NVMEM_VF610_OCOTP=y
-- 
2.21.0


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Re: [PATCH 1/1] ARM: multi_v7_defconfig: enable the Amlogic Meson ADC and eFuse drivers

[Kevin Hilman]

Martin Blumenstingl <martin.blumenstingl@googlemail.com> writes:

> With the SAR ADC driver ADC measurements can be taken though the IIO
> framework. Additionally the SAR ADC has a channel which is connected to
> an internal temperature sensor. The calibration data for this internal
> temperature sensor is stored in the eFuse.
>
> Enable the SAR ADC driver and the eFuse driver for the 32-bit Amlogic
> Meson SoCs so we can expose the chip temperature to userspace through
> the IIO hwmon driver (whose config option is already enabled:
> CONFIG_SENSORS_IIO_HWMON=y).
>
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

Queued for v5.2,

Thanks,

Kevin

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