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spi: dw: Make debugfs name unique between instances

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Some system have multiple dw devices. Currently the driver uses a
fixed name for the debugfs dir. Append dev name to the debugfs dir
name to make it unique.

Signed-off-by: Phil Reid <preid@electromag.com.au>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Phil Reid 2016-12-22 17:18:12 +08:00 committed by Mark Brown
parent fafd679407
commit 13288bdf4a
1 changed files with 4 additions and 1 deletions
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5
drivers/spi/spi-dw.c
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@ -107,7 +107,10 @@ static const struct file_operations dw_spi_regs_ops = {
static int dw_spi_debugfs_init(struct dw_spi *dws)
{
dws->debugfs = debugfs_create_dir("dw_spi", NULL);
char name[128];
snprintf(name, 128, "dw_spi-%s", dev_name(&dws->master->dev));
dws->debugfs = debugfs_create_dir(name, NULL);
if (!dws->debugfs)
return -ENOMEM;