Messages in this thread Patch in this message | | | From | Pierre-Louis Bossart <> | Subject | [PATCH 1/4] soundwire: sdw_slave: add new fields to track probe status | Date | Wed, 23 Oct 2019 16:06:54 -0500 |
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Changes to the sdw_slave structure needed to solve race conditions on driver probe.
The functionality is added in the next patch.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> --- include/linux/soundwire/sdw.h | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h index 688b40e65c89..a381a596212b 100644 --- a/include/linux/soundwire/sdw.h +++ b/include/linux/soundwire/sdw.h @@ -545,6 +545,10 @@ struct sdw_slave_ops { * @node: node for bus list * @port_ready: Port ready completion flag for each Slave port * @dev_num: Device Number assigned by Bus + * @probed: boolean tracking driver state + * @probe_complete: completion utility to control potential races + * on startup between driver probe/initialization and SoundWire + * Slave state changes/imp-def interrupts */ struct sdw_slave { struct sdw_slave_id id; @@ -559,6 +563,8 @@ struct sdw_slave { struct list_head node; struct completion *port_ready; u16 dev_num; + bool probed; + struct completion probe_complete; }; #define dev_to_sdw_dev(_dev) container_of(_dev, struct sdw_slave, dev) -- 2.20.1
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