diff --git a/drivers/soundwire/debugfs.c b/drivers/soundwire/debugfs.c
new file mode 100644
index ..8d86e100516e
--- /dev/null
+++ b/drivers/soundwire/debugfs.c
@@ -0,0 +1,156 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
No, for debugfs-specific code, that dual licens
On Thu, Jul 25, 2019 at 06:39:53PM -0500, Pierre-Louis Bossart wrote:
> Add base debugfs mechanism for SoundWire bus by creating soundwire
> root and master-N and slave-x hierarchy.
>
> Also add SDW Slave SCP, DP0 and DP-N register debug file.
>
> Registers not implemented will print as "XX"
>
>
Thanks for the feedback Cezary.
+static ssize_t sdw_slave_reg_read(struct file *file, char __user
*user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct sdw_slave *slave = file->private_data;
+ unsigned int reg;
+ char *buf;
+ ssize_t ret;
+ int i, j;
+
+ buf =
On 7/25/19 5:15 PM, Guennadi Liakhovetski wrote:
Hi Pierre,
A couple of nitpicks:
Thanks for the feedback!
create mode 100644 drivers/soundwire/debugfs.c
[snip]
diff --git a/drivers/soundwire/bus.h b/drivers/soundwire/bus.h
index 3048ca153f22..06ac4adb0074 100644
--- a/drivers/sound
On 2019-07-26 01:39, Pierre-Louis Bossart wrote:
+static ssize_t sdw_slave_reg_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct sdw_slave *slave = file->private_data;
+ unsigned int reg;
+ char *buf;
+
Hi Pierre,
A couple of nitpicks:
On Thu, Jul 25, 2019 at 06:39:53PM -0500, Pierre-Louis Bossart wrote:
> Add base debugfs mechanism for SoundWire bus by creating soundwire
> root and master-N and slave-x hierarchy.
>
> Also add SDW Slave SCP, DP0 and DP-N register debug file.
>
> Registers not
Add base debugfs mechanism for SoundWire bus by creating soundwire
root and master-N and slave-x hierarchy.
Also add SDW Slave SCP, DP0 and DP-N register debug file.
Registers not implemented will print as "XX"
Credits: this patch is based on an earlier internal contribution by
Vinod Koul, Sanyo
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