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Merge "mtd: msm_qpic_nand: Enable clocks while accessing BAM registers"

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qctecmdr 2021-12-21 22:52:31 -08:00 • committed by Gerrit - the friendly Code Review server
commit ab87e2bacc
1 changed files with 40 additions and 30 deletions
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70
drivers/mtd/devices/msm_qpic_nand.c
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@ -20,36 +20,6 @@
#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
@ -4370,6 +4340,46 @@ out:
return -EINVAL;
}
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);
struct msm_nand_chip *chip = &info->nand_chip;
int err;
err = msm_nand_get_device(chip->dev);
if (err)
goto out;
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);
err = msm_nand_put_device(chip->dev);
out:
if (err)
pr_err("Failed to get/put the device.\n");
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);
}
#define BOOT_DEV_MASK 0x1E
#define BOOT_DEV_NAND 0x4