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path: root/drivers/soundwire/cadence_master.h (follow)
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2019-10-24soundwire: cadence_master: make clock stop exit configurable on initPierre-Louis Bossart1-1/+1
The use of clock stop is not a requirement, the IP can e.g. be completely power gated and not detect any wakes while in s2idle/deep sleep. For now clock-stop is not supported anyways so the control parameter is always false. This will be revisited when we add clock stop. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20191022235448.17586-6-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-24soundwire: intel/cadence: add flag for interrupt enablePierre-Louis Bossart1-1/+1
Prepare for future PM support and fix error handling by disabling interrupts as needed. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20191022235448.17586-5-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-24soundwire: intel/cadence: fix startup sequencePierre-Louis Bossart1-0/+1
Multiple changes squashed in single patch to avoid tick-tock effect and avoid breaking compilation/bisect 1. Per the hardware documentation, all changes to MCP_CONFIG, MCP_CONTROL, MCP_CMDCTRL and MCP_PHYCTRL need to be validated with a self-clearing write to MCP_CONFIG_UPDATE. Add a helper and do the update when the CONFIG is changed. 2. Move interrupt enable after interrupt handler registration 3. Add a new helper to start the hardware bus reset with maximum duration to make sure the Slave(s) correctly detect the reset pattern and to ensure electrical conflicts can be resolved. 4. flush command FIFOs Better error handling will be provided after interrupt disable is provided in follow-up patches. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20191022235448.17586-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-21soundwire: cadence_master: improve PDI allocationBard Liao1-3/+1
PDI number should match dai->id, there is no need to track if a PDI is allocated or not. Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190916192348.467-7-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-21soundwire: cadence/intel: simplify PDI/port mappingPierre-Louis Bossart1-25/+7
The existing Linux code uses a 1:1 mapping between ports and PDIs, but still has an independent allocation of ports and PDIs. Let's simplify the code and remove the port layer by only using PDIs. This patch does not change any functionality, just removes unnecessary code. This will also allow for further simplifications where the PDIs are not dynamically allocated but instead described in a topology file. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190916192348.467-5-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-23soundwire: cadence_master: add debugfs register dumpPierre-Louis Bossart1-0/+4
Add debugfs file to dump the Cadence master registers. 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/20190821185821.12690-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: intel: move shutdown() callback and don't export symbolPierre-Louis Bossart1-2/+0
All DAI callbacks are in intel.c except for shutdown. Move and remove export symbol Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190806005522.22642-18-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-05-02soundwire: fix alignment issues in header filesPierre-Louis Bossart1-9/+9
use Linux style Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-02soundwire: fix SPDX license for header filesPierre-Louis Bossart1-2/+2
No C++ comments in .h files Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-11soundwire: cdns: Add stream routinesVinod Koul1-0/+43
Add support for Cadence stream initialization and implement stream APIs. Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Signed-off-by: Shreyas NC <shreyas.nc@intel.com> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-05-11soundwire: cdns: Add port routinesVinod Koul1-0/+100
Add support for Cadence port management and implement master port ops. Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Signed-off-by: Shreyas NC <shreyas.nc@intel.com> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2018-05-11soundwire: Remove cdns_master_opsShreyas NC1-0/+8
There can be instances where drivers using Cadence IP might want to set sdw_master_ops differently per instance of it's use, so remove the cdns_master_ops and export the APIs. Signed-off-by: Shreyas NC <shreyas.nc@intel.com> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2017-12-19soundwire: cdns: Add sdw_master_ops and IO transfer supportSanyog Kale1-0/+14
Implement sdw_master_ops with support for xfer_msg, xfer_msg_defer and reset_page_addr. Since Cadence module doesn't know the systems it will be used, set the read_prop to the bus helper. Signed-off-by: Hardik T Shah <hardik.t.shah@intel.com> Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-19soundwire: cdns: Add cadence libraryVinod Koul1-0/+34
Cadence IP implements SoundWire Master. Add base cadence library initialization and interrupt handling Signed-off-by: Hardik T Shah <hardik.t.shah@intel.com> Signed-off-by: Sanyog Kale <sanyog.r.kale@intel.com> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Acked-By: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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