nv-tegra-mirror/linux-nv-oot
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nv-oot.git synced 2025-12-22 17:25:35 +03:00
Code Issues Packages Projects Releases Wiki Activity

rtcpu: set op point via sysfs

Browse Source 
Create and register set and get operating point sysfs functions.

The operating point notification will contain the requested
operating point.

The nvcap resource manager will extract the operating point
from the notfication and send it to rce via the hsp command
interface.

In turn, rce will apply the operating point by adjusting the
functional clock frequencies for the following camera ip:

- rce hardware
- vi hardware
- isp hardware
- nvcsi

Jira CAMERASW-26378

Signed-off-by: Robert Kelly <rkelly@nvidia.com>
Change-Id: Ia814b2716d3738efb3cbc37307a267140b555f42
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3179593
(cherry picked from commit d259727a57ecf4b9463030b3418715891b3b1209)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3189078
Reviewed-by: Semi Malinen <smalinen@nvidia.com>
Reviewed-by: Frank Chen <frankc@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
This commit is contained in:
Robert Kelly
2024-07-22 16:30:07 +00:00
committed by mobile promotions
parent d7a9c5b734
commit 98be04181c
4 changed files with 160 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

44
include/soc/tegra/camrtc-commands.h
View File

@@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2022-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* Copyright (c) 2022-2024, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
*/
/**
@@ -464,6 +464,48 @@
*/
#define CAMRTC_HSP_PROTOCOL MK_U32(0x47)
/**
* @brief SET_OP_POINT message
*
* The CAMRTC_HSP_SET_OP_POINT message is used to apply the
* specified operating point to Camera IP. Two operating points
* are supported:
*
* Operating Point 0: Camera IP runs at maximum clock speeds.
* Operating Point 6: Camera IP runs at reduced clock speeds.
*
* Camera IP:
* - RCE HW
* - VI HW
* - ISP HW
* - NVCSI
*
* @pre @ref CAMRTC_HSP_HELLO exchange has been completed.
*
* @par Request
* @rststar
* +-------+---------------------------------------------------+
* | Bits | Description |
* +=======+===================================================+
* | 30:24 | CAMRTC_HSP_SET_OP_POINT |
* +-------+---------------------------------------------------+
* | 23:0 | Operating Point {0, 6} |
* +-------+---------------------------------------------------+
* @endrst
*
* @par Response
* @rststar
* +-------+---------------------------------------------------+
* | Bits | Description |
* +=======+===================================================+
* | 30:24 | CAMRTC_HSP_SET_OP_POINT |
* +-------+---------------------------------------------------+
* | 23:0 | 0x000000 |
* +-------+---------------------------------------------------+
* @endrst
*/
#define CAMRTC_HSP_SET_OP_POINT MK_U32(0x48)
/** Reserved, not to be used. */
#define CAMRTC_HSP_RESERVED_5E MK_U32(0x5E) /* bug 200395605 */