[PATCH v2 1/2] soc: bcm2835: raspberrypi-firmware: Add voltage domain IDs

[Guenter Roeck]

On 5/16/26 12:15, Shubham Chakraborty wrote:
> Add firmware voltage domain identifiers for the Raspberry Pi
> mailbox property interface.
> 
> These IDs are used by firmware clients to query voltage rails
> through the RPI_FIRMWARE_GET_VOLTAGE property.
> 
> Signed-off-by: Shubham Chakraborty <chakrabortyshubham66 at gmail.com>
> ---
>   include/soc/bcm2835/raspberrypi-firmware.h | 8 ++++++++
>   1 file changed, 8 insertions(+)
> 
> diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h
> index e1f87fbfe554..fd2e051ce05b 100644
> --- a/include/soc/bcm2835/raspberrypi-firmware.h
> +++ b/include/soc/bcm2835/raspberrypi-firmware.h
> @@ -156,6 +156,14 @@ enum rpi_firmware_clk_id {
>   	RPI_FIRMWARE_NUM_CLK_ID,
>   };
>   
> +enum rpi_firmware_volt_id {
> +	RPI_FIRMWARE_VOLT_ID_RESERVED = 0,

Is that needed ?

> +	RPI_FIRMWARE_VOLT_ID_CORE = 1,
> +	RPI_FIRMWARE_VOLT_ID_SDRAM_C = 2,
> +	RPI_FIRMWARE_VOLT_ID_SDRAM_I = 3,
> +	RPI_FIRMWARE_VOLT_ID_SDRAM_P = 4,

Regarding Sashiko's feedback: I don't know where it got the
information from, but a web search suggests that it has a point;
RPI_FIRMWARE_VOLT_ID_SDRAM_I and RPI_FIRMWARE_VOLT_ID_SDRAM_P appear
to be swapped. If that is not the case, please provide evidence.

Thanks,
Guenter