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Merge "coresight: stm: Remove debug fuse status check for stm"

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qctecmdr 2020-09-11 08:25:29 -07:00 • committed by Gerrit - the friendly Code Review server
commit 7c0e915192
2 changed files with 3 additions and 25 deletions
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24
drivers/hwtracing/coresight/coresight-stm.c
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@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2015-2017, The Linux Foundation. All rights reserved.
* Copyright (c) 2015-2017, 2020, The Linux Foundation. All rights reserved.
*
* Description: CoreSight System Trace Macrocell driver
*
@ -366,9 +366,6 @@ static ssize_t notrace stm_generic_packet(struct stm_data *stm_data,
if (!(drvdata && local_read(&drvdata->mode)))
return -EACCES;
if (!drvdata->master_enable)
return -EPERM;
if (channel >= drvdata->numsp)
return -EINVAL;
@ -857,13 +854,6 @@ static void stm_init_generic_data(struct stm_drvdata *drvdata,
drvdata->stm.set_options = stm_generic_set_options;
}
static bool is_apps_debug_disabled(u32 val)
{
val &= BIT(APPS_NIDEN_SHIFT);
return val == 0;
}
static int stm_probe(struct amba_device *adev, const struct amba_id *id)
{
int ret;
@ -875,7 +865,6 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
struct resource *res = &adev->res;
struct resource ch_res;
size_t bitmap_size;
uint32_t val;
struct coresight_desc desc = { 0 };
desc.name = coresight_alloc_device_name(&stm_devs, dev);
@ -909,13 +898,6 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
return PTR_ERR(base);
drvdata->chs.base = base;
ret = nvmem_cell_read_u32(&adev->dev, "debug_fuse", &val);
if (!ret)
drvdata->master_enable = !is_apps_debug_disabled(val);
else
drvdata->master_enable = true;
drvdata->write_bytes = stm_fundamental_data_size(drvdata);
if (boot_nr_channel)
@ -969,9 +951,7 @@ static int stm_probe(struct amba_device *adev, const struct amba_id *id)
pm_runtime_put(&adev->dev);
dev_info(dev, "%s initialized with master %s\n",
(char *)coresight_get_uci_data(id),
drvdata->master_enable ? "Enabled" : "Disabled");
dev_info(dev, "%s initialized\n", (char *)coresight_get_uci_data(id));
return 0;
stm_unregister:

4
include/linux/coresight-stm.h
View file

@ -1,6 +1,6 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2011-2012, 2017, The Linux Foundation. All rights reserved.
* Copyright (c) 2011-2012, 2017, 2020, The Linux Foundation. All rights reserved.
*/
#ifndef __LINUX_CORESIGHT_STM_H_
#define __LINUX_CORESIGHT_STM_H_
@ -83,8 +83,6 @@ struct stm_drvdata {
spinlock_t spinlock;
struct channel_space chs;
bool enable;
struct channel_space debug_status_chs;
bool master_enable;
DECLARE_BITMAP(entities, OST_ENTITY_MAX);
struct stm_data stm;
local_t mode;