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platform: dce: reworked dce FSM design

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Redesign DCE KMD drive state machine to handle new PM events.

Bug 3583331

Change-Id: I89adcfa2f311a9a1e86b70e14821468203365266
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2673665
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Arun Swain <arswain@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Mahesh Kumar
2022-02-18 03:39:30 +05:30
committed by Laxman Dewangan
parent a6cc70f8d5
commit 28a1cfd1c1
15 changed files with 1081 additions and 425 deletions
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36
drivers/platform/tegra/dce/dce-mailbox.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2019-2020, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2019-2022, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -171,15 +171,17 @@ void dce_mailbox_set_full_interrupt(struct tegra_dce *d, u8 id)
}
/**
* dce_mailbox_send_cmd_sync - Sends command via mailbox and waits for ack.
* dce_handle_mailbox_send_cmd_sync - handler function for
* mailbox_send_cmd_sync
*
* @d : Pointer to tegra_dce struct.
* @cmd : The command to be sent.
* @interface : boot or admin interface
*
*
* Return : 0 if successful.
*/
int dce_mailbox_send_cmd_sync(struct tegra_dce *d, u32 cmd, u32 interface)
int dce_handle_mailbox_send_cmd_sync(struct tegra_dce *d, u32 cmd, u32 interface)
{
int ret = 0;
struct dce_mailbox_interface *d_mb;
@@ -203,6 +205,34 @@ int dce_mailbox_send_cmd_sync(struct tegra_dce *d, u32 cmd, u32 interface)
return ret;
}
/**
* dce_mailbox_send_cmd_sync - Sends command via mailbox and waits for ack.
*
* @d : Pointer to tegra_dce struct.
* @cmd : The command to be sent.
* @interface : boot or admin interface
*
* Return : 0 if successful.
*/
int dce_mailbox_send_cmd_sync(struct tegra_dce *d, u32 cmd, u32 interface)
{
int ret = 0;
struct dce_mailbox_send_cmd_params params;
params.cmd = cmd;
params.interface = interface;
ret = dce_fsm_post_event(d, EVENT_ID_DCE_BOOT_CMD_MSG_REQUESTED,
(void *)&params);
if (ret) {
dce_err(d, "Unable to send msg ret :%d", ret);
goto out;
}
out:
return ret;
}
/**
* dce_mailbox_init_interface - Initializes the mailbox interface.
*