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msm: camera: fd: skip halt and reset for session start

Browse source 
Halt and reset can be applied only at probe time and flush
time to clean up the MSF interface.

CRs-Fixed: 2593760
Change-Id: I8a19a5a5f4a3b25ef5fe9c18a1e754529418c53c
Signed-off-by: Tejas Prajapati <tpraja@codeaurora.org>
This commit is contained in:
Tejas Prajapati 2020-01-07 16:06:46 +05:30 • committed by Karthik Jayakumar
commit 9ea8b73194
6 changed files with 27 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

12
drivers/cam_fd/fd_hw_mgr/cam_fd_hw_mgr.c
View file

@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
*/
#include <linux/module.h>
@ -1243,6 +1243,8 @@ static int cam_fd_mgr_hw_start(void *hw_mgr_priv, void *mgr_start_args)
struct cam_fd_hw_mgr_ctx *hw_ctx;
struct cam_fd_device *hw_device;
struct cam_fd_hw_init_args hw_init_args;
struct cam_hw_info *fd_hw;
struct cam_fd_core *fd_core;
if (!hw_mgr_priv || !hw_mgr_start_args) {
CAM_ERR(CAM_FD, "Invalid arguments %pK %pK",
@ -1265,9 +1267,17 @@ static int cam_fd_mgr_hw_start(void *hw_mgr_priv, void *mgr_start_args)
return rc;
}
fd_hw = (struct cam_hw_info *)hw_device->hw_intf->hw_priv;
fd_core = (struct cam_fd_core *)fd_hw->core_info;
if (hw_device->hw_intf->hw_ops.init) {
hw_init_args.hw_ctx = hw_ctx;
hw_init_args.ctx_hw_private = hw_ctx->ctx_hw_private;
if (fd_core->hw_static_info->enable_errata_wa.skip_reset)
hw_init_args.reset_required = false;
else
hw_init_args.reset_required = true;
rc = hw_device->hw_intf->hw_ops.init(
hw_device->hw_intf->hw_priv, &hw_init_args,
sizeof(hw_init_args));

10
drivers/cam_fd/fd_hw_mgr/fd_hw/cam_fd_hw_core.c
View file

@ -673,10 +673,12 @@ int cam_fd_hw_init(void *hw_priv, void *init_hw_args, uint32_t arg_size)
fd_core->core_state = CAM_FD_CORE_STATE_IDLE;
spin_unlock_irqrestore(&fd_core->spin_lock, flags);
rc = cam_fd_hw_reset(hw_priv, NULL, 0);
if (rc) {
CAM_ERR(CAM_FD, "Reset Failed, rc=%d", rc);
goto disable_soc;
if (init_args->reset_required) {
rc = cam_fd_hw_reset(hw_priv, NULL, 0);
if (rc) {
CAM_ERR(CAM_FD, "Reset Failed, rc=%d", rc);
goto disable_soc;
}
}
cam_fd_hw_util_enable_power_on_settings(fd_hw);

4
drivers/cam_fd/fd_hw_mgr/fd_hw/cam_fd_hw_core.h
View file

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
*/
#ifndef _CAM_FD_HW_CORE_H_
@ -135,11 +135,13 @@ struct cam_fd_wrapper_regs {
* @ro_mode_enable_always : Whether to enable ro mode always
* @ro_mode_results_invalid : Whether results written directly into output
* memory by HW are valid or not
* @skip_reset : Whether to skip reset during init
*/
struct cam_fd_hw_errata_wa {
bool single_irq_only;
bool ro_mode_enable_always;
bool ro_mode_results_invalid;
bool skip_reset;
};
/**

3
drivers/cam_fd/fd_hw_mgr/fd_hw/cam_fd_hw_dev.c
View file

@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
*/
#include <linux/platform_device.h>
@ -110,6 +110,7 @@ static int cam_fd_hw_dev_probe(struct platform_device *pdev)
memset(&init_args, 0x0, sizeof(init_args));
memset(&deinit_args, 0x0, sizeof(deinit_args));
init_args.reset_required = true;
rc = cam_fd_hw_init(fd_hw, &init_args, sizeof(init_args));
if (rc) {
CAM_ERR(CAM_FD, "Failed to hw init, rc=%d", rc);

4
drivers/cam_fd/fd_hw_mgr/fd_hw/cam_fd_hw_intf.h
View file

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
*/
#ifndef _CAM_FD_HW_INTF_H_
@ -158,10 +158,12 @@ struct cam_fd_hw_release_args {
*
* @hw_ctx : HW context for which init is requested
* @ctx_hw_private : HW layer's private information specific to this hw context
* @reset_required : Indicates if the reset is required during init or not
*/
struct cam_fd_hw_init_args {
void *hw_ctx;
void *ctx_hw_private;
bool reset_required;
};
/**

3
drivers/cam_fd/fd_hw_mgr/fd_hw/cam_fd_hw_v501.h
View file

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
* Copyright (c) 2018-2020, The Linux Foundation. All rights reserved.
*/
#ifndef _CAM_FD_HW_V501_H_
@ -50,6 +50,7 @@ static struct cam_fd_hw_static_info cam_fd_wrapper200_core501_info = {
.single_irq_only = true,
.ro_mode_enable_always = true,
.ro_mode_results_invalid = true,
.skip_reset = true,
},
.irq_mask = CAM_FD_IRQ_TO_MASK(CAM_FD_IRQ_FRAME_DONE) |
CAM_FD_IRQ_TO_MASK(CAM_FD_IRQ_HALT_DONE) |