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crypto: hisilicon - using 'debugfs_create_file' instead of 'debugfs_create_regset32'

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The accelerator devices support runtime PM, when device is in suspended, an
exception will occur if reading registers. Therefore, this patch uses
'debugfs_create_file' instead of 'debugfs_create_regset32' to create
debugfs file, and then the driver can get the device status before
reading the register.

Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Weili Qian
2021-08-13 17:50:05 +08:00
committed by Herbert Xu
parent 357a753f5e
commit 1295292d65
5 changed files with 81 additions and 27 deletions
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12
drivers/crypto/hisilicon/zip/zip_main.c
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@@ -564,6 +564,15 @@ static int zip_debugfs_atomic64_get(void *data, u64 *val)
DEFINE_DEBUGFS_ATTRIBUTE(zip_atomic64_ops, zip_debugfs_atomic64_get,
zip_debugfs_atomic64_set, "%llu\n");
static int hisi_zip_regs_show(struct seq_file *s, void *unused)
{
hisi_qm_regs_dump(s, s->private);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(hisi_zip_regs);
static int hisi_zip_core_debug_init(struct hisi_qm *qm)
{
struct device *dev = &qm->pdev->dev;
@@ -588,7 +597,8 @@ static int hisi_zip_core_debug_init(struct hisi_qm *qm)
regset->base = qm->io_base + core_offsets[i];
tmp_d = debugfs_create_dir(buf, qm->debug.debug_root);
debugfs_create_regset32("regs", 0444, tmp_d, regset);
debugfs_create_file("regs", 0444, tmp_d, regset,
&hisi_zip_regs_fops);
}
return 0;