Commit 6fdd650e authored Dec 22, 2016 by Phil Reid Committed by Greg Kroah-Hartman Aug 11, 2017

spi: dw: Make debugfs name unique between instances




[ Upstream commit 13288bdf4adbaa6bd1267f10044c1bc25d90ce7f ]

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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 72fafee1

drivers/spi/spi-dw.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -118,7 +118,10 @@ 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;