[U-Boot] [PATCH v3 1/2] thermal: ti-bandgap: Add support for temperature sensor

[Lokesh Vutla]

On Wednesday 18 October 2017 05:11 PM, Faiz Abbas wrote:
> The dra7xx series of SOCs contain a temperature sensor and an
> associated analog-to-digital converter (ADC) which produces
> an output which is proportional to the SOC temperature.
> Add support for this temperature sensor.
> 
> Signed-off-by: Faiz Abbas <faiz_abbas at ti.com>
> Reviewed-by: Simon Glass <sjg at chromium.org>
> ---
> v3:
> Added Reviewed-by comment
> 
> v2:
>  1. Removed extra elements from ti_bandgap
>  2. Changed base address to ulong
>  3. Changed to udev to dev to maintain consistency
>  4. minor format changes
> 
>  common/spl/Kconfig                                 |   8 +
>  configs/dra7xx_evm_defconfig                       |   3 +
>  .../thermal/ti_soc_thermal.txt                     |  35 ++++
>  drivers/Makefile                                   |   2 +-
>  drivers/thermal/Kconfig                            |   6 +
>  drivers/thermal/Makefile                           |   1 +
>  drivers/thermal/ti-bandgap.c                       | 197 +++++++++++++++++++++
>  7 files changed, 251 insertions(+), 1 deletion(-)
>  create mode 100644 doc/device-tree-bindings/thermal/ti_soc_thermal.txt
>  create mode 100644 drivers/thermal/ti-bandgap.c
> 
> diff --git a/common/spl/Kconfig b/common/spl/Kconfig
> index 0bd8370..0bf3ee3 100644
> --- a/common/spl/Kconfig
> +++ b/common/spl/Kconfig
> @@ -604,6 +604,14 @@ config SPL_SPI_SUPPORT
>  	  enable SPI drivers that are needed for other purposes also, such
>  	  as a SPI PMIC.
>  
> +config SPL_THERMAL
> +	bool "Driver support for thermal devices"
> +	help
> +	  Enable support for temperature-sensing devices. Some SoCs have on-chip
> +	  temperature sensors to permit warnings, speed throttling or even
> +	  automatic power-off when the temperature gets too high or low. Other
> +	  devices may be discrete but connected on a suitable bus.
> +
>  config SPL_USB_HOST_SUPPORT
>  	bool "Support USB host drivers"
>  	help
> diff --git a/configs/dra7xx_evm_defconfig b/configs/dra7xx_evm_defconfig
> index 468c288..447fb89 100644
> --- a/configs/dra7xx_evm_defconfig
> +++ b/configs/dra7xx_evm_defconfig
> @@ -90,3 +90,6 @@ CONFIG_USB_GADGET=y
>  CONFIG_USB_GADGET_MANUFACTURER="Texas Instruments"
>  CONFIG_USB_GADGET_VENDOR_NUM=0x0451
>  CONFIG_USB_GADGET_PRODUCT_NUM=0xd022
> +CONFIG_SPL_THERMAL=y
> +CONFIG_DM_THERMAL=y
> +CONFIG_TI_DRA7_THERMAL=y

Tom,
	Do you want these options to be implied so that it will take effect for
HS board as well. Or enable it in defconfig as is?

Thanks and regards,
Lokesh