| From foo@baz Fri Aug 4 13:32:40 PDT 2017 |
| From: Phil Reid <preid@electromag.com.au> |
| Date: Thu, 22 Dec 2016 17:18:12 +0800 |
| Subject: spi: dw: Make debugfs name unique between instances |
| |
| From: Phil Reid <preid@electromag.com.au> |
| |
| |
| [ 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> |
| --- |
| drivers/spi/spi-dw.c | 5 ++++- |
| 1 file changed, 4 insertions(+), 1 deletion(-) |
| |
| --- a/drivers/spi/spi-dw.c |
| +++ b/drivers/spi/spi-dw.c |
| @@ -107,7 +107,10 @@ static const struct file_operations dw_s |
| |
| 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; |
| |