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lib: utils: Split the FDT MPXY RPMI mailbox client into two parts

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Instead of having one common FDT MPXY RPMI mailbox client drivers
for various RPMI service groups, split this driver into two parts:
1) Common MPXY RPMI mailbox client library
2) MPXY driver for RPMI clock service group

The above split enables having a separate MPXY driver for each
RPMI clock service group and #1 (above) will allow code sharing
between various MPXY RPMI drivers.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
This commit is contained in:
Anup Patel
2025-01-11 14:38:34 +05:30
committed by Anup Patel
parent 5ce121b7a1
commit d14340cb31
6 changed files with 191 additions and 154 deletions
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88
lib/utils/mpxy/fdt_mpxy_rpmi_clock.c Normal file
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@@ -0,0 +1,88 @@
/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2024 Ventana Micro Systems Inc.
*
* Authors:
* Rahul Pathak <rpathak@ventanamicro.com>
* Anup Patel <apatel@ventanamicro.com>
*/
#include <sbi_utils/mpxy/fdt_mpxy_rpmi_mbox.h>
static struct mpxy_rpmi_service_data clock_services[] = {
{
.id = RPMI_CLOCK_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_CLOCK_SRV_GET_NUM_CLOCKS,
.min_tx_len = 0,
.max_tx_len = 0,
.min_rx_len = sizeof(struct rpmi_clock_get_num_clocks_resp),
.max_rx_len = sizeof(struct rpmi_clock_get_num_clocks_resp),
},
{
.id = RPMI_CLOCK_SRV_GET_ATTRIBUTES,
.min_tx_len = sizeof(struct rpmi_clock_get_attributes_req),
.max_tx_len = sizeof(struct rpmi_clock_get_attributes_req),
.min_rx_len = sizeof(struct rpmi_clock_get_attributes_resp),
.max_rx_len = sizeof(struct rpmi_clock_get_attributes_resp),
},
{
.id = RPMI_CLOCK_SRV_GET_SUPPORTED_RATES,
.min_tx_len = sizeof(struct rpmi_clock_get_supported_rates_req),
.max_tx_len = sizeof(struct rpmi_clock_get_supported_rates_req),
.min_rx_len = sizeof(struct rpmi_clock_get_supported_rates_resp),
.max_rx_len = -1U,
},
{
.id = RPMI_CLOCK_SRV_SET_CONFIG,
.min_tx_len = sizeof(struct rpmi_clock_set_config_req),
.max_tx_len = sizeof(struct rpmi_clock_set_config_req),
.min_rx_len = sizeof(struct rpmi_clock_set_config_resp),
.max_rx_len = sizeof(struct rpmi_clock_set_config_resp),
},
{
.id = RPMI_CLOCK_SRV_GET_CONFIG,
.min_tx_len = sizeof(struct rpmi_clock_get_config_req),
.max_tx_len = sizeof(struct rpmi_clock_get_config_req),
.min_rx_len = sizeof(struct rpmi_clock_get_config_resp),
.max_rx_len = sizeof(struct rpmi_clock_get_config_resp),
},
{
.id = RPMI_CLOCK_SRV_SET_RATE,
.min_tx_len = sizeof(struct rpmi_clock_set_rate_req),
.max_tx_len = sizeof(struct rpmi_clock_set_rate_req),
.min_rx_len = sizeof(struct rpmi_clock_set_rate_resp),
.max_rx_len = sizeof(struct rpmi_clock_set_rate_resp),
},
{
.id = RPMI_CLOCK_SRV_GET_RATE,
.min_tx_len = sizeof(struct rpmi_clock_get_rate_req),
.max_tx_len = sizeof(struct rpmi_clock_get_rate_req),
.min_rx_len = sizeof(struct rpmi_clock_get_rate_resp),
.max_rx_len = sizeof(struct rpmi_clock_get_rate_resp),
},
};
static struct mpxy_rpmi_mbox_data clock_data = {
.servicegrp_id = RPMI_SRVGRP_CLOCK,
.num_services = RPMI_CLOCK_SRV_MAX_COUNT,
.notifications_support = 1,
.service_data = clock_services,
};
static const struct fdt_match clock_match[] = {
{ .compatible = "riscv,rpmi-mpxy-clock", .data = &clock_data },
{ },
};
const struct fdt_driver fdt_mpxy_rpmi_clock = {
.match_table = clock_match,
.init = mpxy_rpmi_mbox_init,
.experimental = true,
};