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lib: utils/mailbox: Parse P2A doorbell system MSI index from DT

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The P2A doorbell system MSI index is expected to be discovered from
device tree instead of RPMI system MSI service group attribute. This
is based on ARC feedback before RPMI spec was frozen.

Let's parse P2A doorbell system MSI index from device tree and also
expose it as rpmi channel attribute to RPMI client drivers.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Link: https://lore.kernel.org/r/20250512083827.804151-3-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Anup Patel
2025-05-12 14:08:25 +05:30
committed by Anup Patel
parent 8ca08044c2
commit a79566175c
2 changed files with 13 additions and 4 deletions
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1
include/sbi_utils/mailbox/rpmi_msgprot.h
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@@ -193,6 +193,7 @@ struct rpmi_message_args {
enum rpmi_channel_attribute_id {
RPMI_CHANNEL_ATTR_PROTOCOL_VERSION = 0,
RPMI_CHANNEL_ATTR_MAX_DATA_LEN,
RPMI_CHANNEL_ATTR_P2A_DOORBELL_SYSMSI_INDEX,
RPMI_CHANNEL_ATTR_TX_TIMEOUT,
RPMI_CHANNEL_ATTR_RX_TIMEOUT,
RPMI_CHANNEL_ATTR_SERVICEGROUP_ID,