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Merge "mtd: msm_qpic_nand: register msm_nand to panic_notifier"

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qctecmdr 2021-10-28 00:48:57 -07:00 • committed by Gerrit - the friendly Code Review server
commit d12c787a66
1 changed files with 36 additions and 1 deletions
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37
drivers/mtd/devices/msm_qpic_nand.c
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@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2007 Google, Inc.
* Copyright (c) 2012-2020 The Linux Foundation. All rights reserved.
* Copyright (c) 2012-2021 The Linux Foundation. All rights reserved.
*/
#include "msm_qpic_nand.h"
@ -19,6 +19,38 @@
#define SMEM_APPS 0
#define ONE_CODEWORD_SIZE 516
static struct device *dev_node;
static int msm_nand_bam_panic_notifier(struct notifier_block *this,
unsigned long event, void *ptr)
{
struct msm_nand_info *info = dev_get_drvdata(dev_node);
pr_info("Dumping APSS bam pipes register dumps\n");
sps_get_bam_debug_info(info->sps.bam_handle, 93,
(SPS_BAM_PIPE(0) |
SPS_BAM_PIPE(1) |
SPS_BAM_PIPE(2) |
SPS_BAM_PIPE(3)),
0, 2);
return NOTIFY_DONE;
}
static struct notifier_block msm_nand_bam_panic_blk = {
.notifier_call = msm_nand_bam_panic_notifier,
};
void msm_nand_bam_register_panic_handler(void)
{
atomic_notifier_chain_register(&panic_notifier_list,
&msm_nand_bam_panic_blk);
}
void msm_nand_bam_unregister_panic_handler(void)
{
atomic_notifier_chain_unregister(&panic_notifier_list,
&msm_nand_bam_panic_blk);
}
/*
* Get the DMA memory for requested amount of size. It returns the pointer
* to free memory available from the allocated pool. Returns NULL if there
@ -4555,6 +4587,8 @@ static int msm_nand_probe(struct platform_device *pdev)
pr_info("Allocated DMA buffer at virt_addr 0x%pK, phys_addr 0x%x\n",
info->nand_chip.dma_virt_addr, info->nand_chip.dma_phys_addr);
pr_info("Host capabilities:0x%08x\n", info->nand_chip.caps);
dev_node = dev;
msm_nand_bam_register_panic_handler();
goto out;
free_bam:
msm_nand_bam_free(info);
@ -4576,6 +4610,7 @@ static int msm_nand_remove(struct platform_device *pdev)
{
struct msm_nand_info *info = dev_get_drvdata(&pdev->dev);
msm_nand_bam_unregister_panic_handler();
if (pm_runtime_suspended(&(pdev)->dev))
pm_runtime_resume(&(pdev)->dev);