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

[Shubham Chakraborty <chakrabortyshubham66@gmail.com>]

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@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,
+	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,
+};
+
 /**
  * struct rpi_firmware_clk_rate_request - Firmware Request for a rate
  * @id:	ID of the clock being queried
-- 
2.54.0