Uday M Bhat
038306aabe
soundwire: debugfs: Add missing SCP registers
...
SCP registers needs to be updated to accommodate additional
register entries as per the Soundwire 1.2 specification.
Signed-off-by: Uday M Bhat <uday.m.bhat@intel.com >
Signed-off-by: Yong Zhi <yong.zhi@intel.com >
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com >
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com >
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com >
Link: https://lore.kernel.org/r/20230607020632.1030309-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2023-06-08 17:10:32 +05:30
Krzysztof Kozlowski
217f5e0de3
soundwire: debugfs: fix unbalanced pm_runtime_put()
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If pm_runtime_resume_and_get() failed with -EACCES, the driver continued
execution and finally called pm_runtime_put_autosuspend(). Since
pm_runtime_resume_and_get() drops the usage counter on every error, this
lead to double decrement of that counter.
Fixes: b275bf45bakrzysztof.kozlowski@linaro.org >
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com >
Link: https://lore.kernel.org/r/20230517163750.997629-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2023-05-29 10:49:46 +05:30
Charles Keepax
b275bf45ba
soundwire: debugfs: Switch to sdw_read_no_pm
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It is rather inefficient to be constantly playing with the runtime
PM reference for each individual register, switch to holding a PM
runtime reference across the whole register output.
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com >
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com >
Link: https://lore.kernel.org/r/20221125142028.1118618-4-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2023-01-09 21:46:27 +05:30
Srinivas Kandagatla
75eac387a2
soundwire: debugfs: use controller id and link_id for debugfs
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link_id can be zero and if we have multiple controller instances
in a system like Qualcomm debugfs will end-up with duplicate namespace
resulting in incorrect debugfs entries.
Using bus-id and link-id combination should give a unique debugfs directory
entry and should fix below warning too.
"debugfs: Directory 'master-0' with parent 'soundwire' already present!"
Fixes: bf03473d5bsrinivas.kandagatla@linaro.org >
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com >
Link: https://lore.kernel.org/r/20210907105332.1257-1-srinivas.kandagatla@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2021-10-01 09:53:47 +05:30
Pierre-Louis Bossart
88ac86f252
soundwire: debugfs: clarify SDPX license with GPL-2.0-only
...
Follow recommendation to use GPL-2.0-only
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com >
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com >
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com >
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com >
Link: https://lore.kernel.org/r/20200419185117.4233-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2020-05-05 08:51:44 +05:30
Pierre-Louis Bossart
bf03473d5b
soundwire: add debugfs support
...
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, Sanyog Kale, Shreyas Nc and Hardik Shah.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
Acked-by: Sanyog Kale <sanyog.r.kale@intel.com >
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com >
Link: https://lore.kernel.org/r/20190821185821.12690-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org >
2019-08-23 12:01:02 +05:30
