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lib: utils: Add MPXY RPMI mailbox driver for device power

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Add MPXY RPMI mailbox driver for device power.

Signed-off-by: Joshua Yeong <joshua.yeong@starfivetech.com>
Reviewed-by: Rahul Pathak <rpathak@ventanamicro.com>
Link: https://lore.kernel.org/r/20251013153138.1574512-3-joshua.yeong@starfivetech.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Joshua Yeong
2025-10-13 23:31:37 +08:00
committed by Anup Patel
parent fa911ebe72
commit a28e51016e
5 changed files with 109 additions and 0 deletions
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56
lib/utils/mpxy/fdt_mpxy_rpmi_device_power.c Normal file
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#include <sbi_utils/mpxy/fdt_mpxy_rpmi_mbox.h>
static struct mpxy_rpmi_service_data dpwr_services[] = {
{
.id = RPMI_DPWR_SRV_ENABLE_NOTIFICATION,
.min_tx_len = sizeof(struct rpmi_enable_notification_req),
.max_tx_len = sizeof(struct rpmi_enable_notification_req),
.min_rx_len = sizeof(struct rpmi_enable_notification_resp),
.max_rx_len = sizeof(struct rpmi_enable_notification_resp),
},
{
.id = RPMI_DPWR_SRV_GET_NUM_DOMAINS,
.min_tx_len = 0,
.max_tx_len = 0,
.min_rx_len = sizeof(struct rpmi_dpwr_get_num_domain_resp),
.max_rx_len = sizeof(struct rpmi_dpwr_get_num_domain_resp),
},
{
.id = RPMI_DPWR_SRV_GET_ATTRIBUTES,
.min_tx_len = sizeof(struct rpmi_dpwr_get_attrs_req),
.max_tx_len = sizeof(struct rpmi_dpwr_get_attrs_req),
.min_rx_len = sizeof(struct rpmi_dpwr_get_attrs_resp),
.max_rx_len = sizeof(struct rpmi_dpwr_get_attrs_resp),
},
{
.id = RPMI_DPWR_SRV_SET_STATE,
.min_tx_len = sizeof(struct rpmi_dpwr_set_state_req),
.max_tx_len = sizeof(struct rpmi_dpwr_set_state_req),
.min_rx_len = sizeof(struct rpmi_dpwr_set_state_resp),
.max_rx_len = sizeof(struct rpmi_dpwr_set_state_resp),
},
{
.id = RPMI_DPWR_SRV_GET_STATE,
.min_tx_len = sizeof(struct rpmi_dpwr_get_state_req),
.max_tx_len = sizeof(struct rpmi_dpwr_get_state_req),
.min_rx_len = sizeof(struct rpmi_dpwr_get_state_resp),
.max_rx_len = sizeof(struct rpmi_dpwr_get_state_resp),
},
};
static const struct mpxy_rpmi_mbox_data dpwr_data = {
.servicegrp_id = RPMI_SRVGRP_DEVICE_POWER,
.num_services = RPMI_DPWR_SRV_MAX_COUNT,
.service_data = dpwr_services,
};
static const struct fdt_match dpwr_match[] = {
{ .compatible = "riscv,rpmi-mpxy-device-power", .data = &dpwr_data },
{ },
};
const struct fdt_driver fdt_mpxy_rpmi_device_power = {
.experimental = true,
.match_table = dpwr_match,
.init = mpxy_rpmi_mbox_init,
};