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Merge "firmware: qcom_scm: Add calls to support MSS restart"

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This commit is contained in:
qctecmdr 2021-01-14 15:49:37 -08:00 • committed by Gerrit - the friendly Code Review server
commit d85421988c
2 changed files with 22 additions and 2 deletions
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20
drivers/firmware/qcom_scm.c
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@ -1,5 +1,5 @@
// SPDX-License-Identifier: GPL-2.0-only
/* Copyright (c) 2010,2015,2020 The Linux Foundation. All rights reserved.
/* Copyright (c) 2010,2015,2020-2021 The Linux Foundation. All rights reserved.
* Copyright (C) 2015 Linaro Ltd.
*/
#include <linux/platform_device.h>
@ -264,6 +264,24 @@ int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr, phys_addr_t size)
}
EXPORT_SYMBOL(qcom_scm_pas_mem_setup);
/**
* qcom_scm_pas_mss_reset() - MSS restart
*/
int qcom_scm_pas_mss_reset(bool reset)
{
int ret;
ret = qcom_scm_clk_enable();
if (ret)
return ret;
ret = __qcom_scm_pas_mss_reset(__scm->dev, reset);
qcom_scm_clk_disable();
return ret;
}
EXPORT_SYMBOL(qcom_scm_pas_mss_reset);
/**
* qcom_scm_pas_auth_and_reset() - Authenticate the given peripheral firmware
* and reset the remote processor

4
include/linux/qcom_scm.h
View file

@ -1,5 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (c) 2010-2015, 2018-2020 The Linux Foundation. All rights reserved.
/* Copyright (c) 2010-2015, 2018-2021 The Linux Foundation. All rights reserved.
* Copyright (C) 2015 Linaro Ltd.
*/
#ifndef __QCOM_SCM_H
@ -95,6 +95,7 @@ extern int qcom_scm_pas_init_image(u32 peripheral, const void *metadata,
size_t size);
extern int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr,
phys_addr_t size);
extern int qcom_scm_pas_mss_reset(bool reset);
extern int qcom_scm_pas_auth_and_reset(u32 peripheral);
extern int qcom_scm_pas_shutdown(u32 peripheral);
extern int qcom_scm_get_sec_dump_state(u32 *dump_state);
@ -223,6 +224,7 @@ static inline int qcom_scm_pas_init_image(u32 peripheral, const void *metadata,
size_t size) { return -ENODEV; }
static inline int qcom_scm_pas_mem_setup(u32 peripheral, phys_addr_t addr,
phys_addr_t size) { return -ENODEV; }
static inline int qcom_scm_pas_mss_reset(bool reset) { return -ENODEV; }
static inline int qcom_scm_pas_auth_and_reset(u32 peripheral)
{ return -ENODEV; }
static inline int qcom_scm_pas_shutdown(u32 peripheral) { return -ENODEV; }