[alsa-devel] [PATCH 10/14] soundwire: Add sysfs for SoundWire DisCo properties

Vinod Koul vinod.koul at intel.com
Fri Nov 10 05:52:19 CET 2017


On Thu, Nov 09, 2017 at 09:14:35PM +0000, Srinivas Kandagatla wrote:
> 
> 
> On 19/10/17 04:03, Vinod Koul wrote:
> >It helps to read the properties for understanding and debug
> >SoundWire systems, so add sysfs files for SoundWire DisCo
> >properties.
> >
> >TODO: Add ABI files for sysfs
> >
> >Signed-off-by: Sanyog Kale <sanyog.r.kale at intel.com>
> >Signed-off-by: Vinod Koul <vinod.koul at intel.com>
> >---
> 
> >diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
> >index 6c4f41b64744..e3d7aea18892 100644
> >--- a/drivers/soundwire/bus.c
> >+++ b/drivers/soundwire/bus.c
> >@@ -90,6 +90,8 @@ int sdw_add_bus_master(struct sdw_bus *bus)
> >  		}
> >  	}
> >+	sdw_sysfs_bus_init(bus);
> >+
> >  	/*
> >  	 * SDW is an enumerable bus, but devices can be powered off. So,
> >  	 * they won't be able to report as present.
> >@@ -119,6 +121,8 @@ static int sdw_delete_slave(struct device *dev, void *data)
> >  	struct sdw_slave *slave = dev_to_sdw_dev(dev);
> >  	struct sdw_bus *bus = slave->bus;
> >+	sdw_sysfs_slave_exit(slave);
> >+
> >  	mutex_lock(&bus->bus_lock);
> >  	if (!list_empty(&bus->slaves))
> >  		list_del(&slave->node);
> >@@ -130,6 +134,7 @@ static int sdw_delete_slave(struct device *dev, void *data)
> >  void sdw_delete_bus_master(struct sdw_bus *bus)
> >  {
> >+	sdw_sysfs_bus_init(bus);
> 
> Shouldn't this be sdw_sysfs_bus_exit() here?

yes thats right, fixes in for v2

-- 
~Vinod


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