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2021-07-14soundwire: stream: Fix test for DP prepare completeRichard Fitzgerald1-7/+6
[ Upstream commit 3d3e88e336338834086278236d42039f3cde50e1 ] In sdw_prep_deprep_slave_ports(), after the wait_for_completion() the DP prepare status register is read. If this indicates that the port is now prepared, the code should continue with the port setup. It is irrelevant whether the wait_for_completion() timed out if the port is now ready. The previous implementation would always fail if the wait_for_completion() timed out, even if the port was reporting successful prepare. This patch also fixes a minor bug where the return from sdw_read() was not checked for error - any error code with LSBits clear could be misinterpreted as a successful port prepare. Fixes: 79df15b7d37c ("soundwire: Add helpers for ports operations") Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20210618144745.30629-1-rf@opensource.cirrus.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-14soundwire: stream: fix memory leak in stream config error pathRander Wang1-1/+9
[ Upstream commit 48f17f96a81763c7c8bf5500460a359b9939359f ] When stream config is failed, master runtime will release all slave runtime in the slave_rt_list, but slave runtime is not added to the list at this time. This patch frees slave runtime in the config error path to fix the memory leak. Fixes: 89e590535f32 ("soundwire: Add support for SoundWire stream management") Signed-off-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Keyon Jie <yang.jie@intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20210331004610.12242-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-14soundwire: bus: Fix device found flag correctlySrinivas Kandagatla1-1/+2
[ Upstream commit f03690f4f6992225d05dbd1171212e5be5a370dd ] found flag is used to indicate SoundWire devices that are both enumerated on the bus and available in the device list. However this flag is not reset correctly after one iteration, This could miss some of the devices that are enumerated on the bus but not in device list. So reset this correctly to fix this issue! Fixes: d52d7a1be02c ("soundwire: Add Slave status handling helpers") Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20210309104816.20350-1-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-04soundwire: cadence: fix ACK/NAK handlingPierre-Louis Bossart1-4/+4
[ Upstream commit db9d9f944f95e7f3aa60ac00cbd502415152c421 ] The existing code reports a NAK only when ACK=0 This is not aligned with the SoundWire 1.x specifications. Table 32 in the SoundWire 1.2 specification shows that a Device shall not set NAK=1 if ACK=1. But Table 33 shows the Combined Response may very well be NAK=1/ACK=1, e.g. if another Device than the one addressed reports a parity error. NAK=1 signals a 'Command_Aborted', regardless of the ACK bit value. Move the tests for NAK so that the NAK=1/ACK=1 combination is properly detected according to the specification. Fixes: 956baa1992f9a ('soundwire: cdns: Add sdw_master_ops and IO transfer support') Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20210115053738.22630-5-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01soundwire: bus: disable pm_runtime in sdw_slave_deletePierre-Louis Bossart1-0/+2
[ Upstream commit dff70572e9a3a1a01d9dbc2279faa784d95f41b6 ] Before removing the slave device, disable pm_runtime to prevent any race condition with the resume being executed after the bus and slave devices are removed. Since this pm_runtime_disable() is handled in common routines, implementations of Slave drivers do not need to call it in their .remove() routine. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20200115000844.14695-8-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-01soundwire: intel/cadence: fix startup sequencePierre-Louis Bossart3-26/+69
[ Upstream commit 49ea07d33d9a32c17e18b322e789507280ceb2a3 ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-09-17soundwire: fix double free of dangling pointerTom Rix1-3/+5
[ Upstream commit 3fbbf2148a406b3e350fe91e6fdd78eb42ecad24 ] clang static analysis flags this problem stream.c:844:9: warning: Use of memory after it is freed kfree(bus->defer_msg.msg->buf); ^~~~~~~~~~~~~~~~~~~~~~~ This happens in an error handler cleaning up memory allocated for elements in a list. list_for_each_entry(m_rt, &stream->master_list, stream_node) { bus = m_rt->bus; kfree(bus->defer_msg.msg->buf); kfree(bus->defer_msg.msg); } And is triggered when the call to sdw_bank_switch() fails. There are a two problems. First, when sdw_bank_switch() fails, though it frees memory it does not clear bus's reference 'defer_msg.msg' to that memory. The second problem is the freeing msg->buf. In some cases msg will be NULL so this will dereference a null pointer. Need to check before freeing. Fixes: 99b8a5d608a6 ("soundwire: Add bank switch routine") Signed-off-by: Tom Rix <trix@redhat.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20200902202650.14189-1-trix@redhat.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-07-22soundwire: intel: fix memory leak with devm_kasprintfPierre-Louis Bossart1-2/+3
[ Upstream commit bf6d6e68d2028a2d82f4c106f50ec75cc1e6ef89 ] The dais are allocated with devm_kcalloc() but their name isn't resourced managed and never freed. Fix by also using devm_ for the dai names as well. Fixes: c46302ec554c5 ('soundwire: intel: Add audio DAI ops') Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Daniel Baluta <daniel.baluta@gmail.com> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20200617163536.17401-1-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-06-24soundwire: slave: don't init debugfs on device registration errorPierre-Louis Bossart1-0/+2
[ Upstream commit 8893ab5e8ee5d7c12e0fc1dca4a309475064473d ] The error handling flow seems incorrect, there is no reason to try and add debugfs support if the device registration did not succeed. Return on error. 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/20200419185117.4233-2-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-12-31soundwire: intel: fix PDI/stream mapping for BulkPierre-Louis Bossart1-2/+8
[ Upstream commit c134f914e9f55b7817e2bae625ec0e5f1379f7cd ] The previous formula is incorrect for PDI0/1, the mapping is not linear but has a discontinuity between PDI1 and PDI2. This change has no effect on PCM PDIs (same mapping). Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20191022232948.17156-1-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-10-24soundwire: slave: fix scanf formatPierre-Louis Bossart1-1/+2
fix cppcheck warning: [drivers/soundwire/slave.c:145]: (warning) %x in format string (no. 1) requires 'unsigned int *' but the argument type is 'signed int *'. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20191022233147.17268-1-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-21soundwire: intel: fix intel_register_dai PDI offsets and numbersBard Liao1-2/+2
There are two issues, likely copy/paste: 1. Use cdns->pcm.num_in instead of stream_num_in for consistency with the rest of the code. This was not detected earlier since platforms did not have input-only PDIs. 2. use the correct offset for bi-dir PDM, based on IN and OUT PDIs. Again this was not detected since PDM was not supported earlier. Reported-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> 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/20190916192348.467-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-15soundwire: depend on ACPI || OFMichal Suchanek1-1/+1
Now devicetree is supported for probing soundwire as well. On platforms built with !ACPI !OF (ie s390x) the device still cannot be probed and gives a build warning. Cc: stable@vger.kernel.org Fixes: a2e484585ad3 ("soundwire: core: add device tree support for slave devices") Signed-off-by: Michal Suchanek <msuchanek@suse.de> Link: https://lore.kernel.org/r/0b89b4ea16a93f523105c81a2f718b0cd7ec66f2.1570097621.git.msuchanek@suse.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-15soundwire: depend on ACPIMichal Suchanek1-0/+1
The device cannot be probed on !ACPI and gives this warning: drivers/soundwire/slave.c:16:12: warning: ‘sdw_slave_add’ defined but not used [-Wunused-function] static int sdw_slave_add(struct sdw_bus *bus, ^~~~~~~~~~~~~ Cc: stable@vger.kernel.org Fixes: 7c3cd189b86d ("soundwire: Add Master registration") Signed-off-by: Michal Suchanek <msuchanek@suse.de> Link: https://lore.kernel.org/r/bd685232ea511251eeb9554172f1524eabf9a46e.1570097621.git.msuchanek@suse.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-09-22Merge tag 'soundwire-5.4-rc1' of ↵Linus Torvalds12-99/+718
git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire Pull soundwire updates from Vinod Koul: "This includes DT support thanks to Srini and more work done by Intel (Pierre) on improving cadence and intel support. Summary: - Add DT bindings and DT support in core - Add debugfs support for soundwire properties - Improvements on streaming handling to core - Improved handling of Cadence module - More updates and improvements to Intel driver" * tag 'soundwire-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: (30 commits) soundwire: stream: make stream name a const pointer soundwire: Add compute_params callback soundwire: core: add device tree support for slave devices dt-bindings: soundwire: add slave bindings soundwire: bus: set initial value to port_status soundwire: intel: handle disabled links soundwire: intel: add debugfs register dump soundwire: cadence_master: add debugfs register dump soundwire: add debugfs support soundwire: intel: remove unused variables soundwire: intel: move shutdown() callback and don't export symbol soundwire: cadence_master: add kernel parameter to override interrupt mask soundwire: intel_init: add kernel module parameter to filter out links soundwire: cadence_master: fix divider setting in clock register soundwire: cadence_master: make use of mclk_freq property soundwire: intel: read mclk_freq property from firmware soundwire: add new mclk_freq field for properties soundwire: stream: remove unnecessary variable initializations soundwire: stream: fix disable sequence soundwire: include mod_devicetable.h to avoid compiling warnings ...
2019-09-04soundwire: stream: make stream name a const pointerSrinivas Kandagatla1-1/+1
Make stream name const pointer Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20190813083550.5877-3-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-09-04soundwire: Add compute_params callbackVinod Koul1-0/+10
This callback allows masters to compute the bus parameters required. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20190813083550.5877-2-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-09-04soundwire: core: add device tree support for slave devicesSrinivas Kandagatla3-0/+55
This patch adds support to parsing device tree based SoundWire slave devices. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20190829163514.11221-3-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-09-04soundwire: bus: set initial value to port_statusBard Liao1-1/+1
port_status[port_num] are assigned for each port_num in some if conditions. So some of the port_status may not be initialized. Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190829181135.16049-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-23soundwire: intel: handle disabled linksPierre-Louis Bossart1-3/+22
On most hardware platforms, SoundWire interfaces are pin-muxed with other interfaces (typically DMIC or I2S) and the status of each link needs to be checked at boot time. For Intel platforms, the BIOS provides a menu to enable/disable the links separately, and the information is provided to the OS with an Intel-specific _DSD property. The same capability will be added to revisions of the MIPI DisCo specification. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190821185821.12690-5-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-23soundwire: intel: add debugfs register dumpPierre-Louis Bossart1-0/+121
Add debugfs file to dump the Intel SoundWire 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/20190821185821.12690-4-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-23soundwire: cadence_master: add debugfs register dumpPierre-Louis Bossart2-0/+111
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>
2019-08-23soundwire: add debugfs supportPierre-Louis Bossart6-0/+181
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>
2019-08-22soundwire: intel: remove unused variablesVinod Koul1-1/+0
Variables 'nval' and 'i' are no longer used sdw_master_read_intel_prop() so remove them. drivers/soundwire/intel.c: In function 'sdw_master_read_intel_prop': drivers/soundwire/intel.c:829:12: warning: unused variable 'i' [-Wunused-variable] int nval, i; ^ drivers/soundwire/intel.c:829:6: warning: unused variable 'nval' [-Wunused-variable] int nval, i; ^~~~ Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Fixes: 085f4ace103d ("soundwire: intel: read mclk_freq property from firmware") Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: intel: move shutdown() callback and don't export symbolPierre-Louis Bossart3-18/+15
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>
2019-08-21soundwire: cadence_master: add kernel parameter to override interrupt maskPierre-Louis Bossart1-0/+7
The code has a set of defaults which may not be relevant in all cases, add kernel parameter as a helper - mostly for early board bring-up. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190806005522.22642-17-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: intel_init: add kernel module parameter to filter out linksPierre-Louis Bossart1-0/+11
The hardware and ACPI info may report the presence of links that are not physically enabled (e.g. due to pin-muxing or hardware reworks), which in turn can result in errors being thrown. This shouldn't be the case for production devices but will happen a lot on development devices - even more so when they expose a connector. Even when the ACPI information is correct, it's useful to be able to only enable the links that need attention - mostly to filter out dynamic debug messages. Add a module parameter to filter out such links, e.g. adding the following config to a file in /etc/modprobe.d will select the second and third links only. options soundwire_intel_init sdw_link_mask=0x6 Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190806005522.22642-16-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: cadence_master: fix divider setting in clock registerRander Wang1-8/+8
The existing code uses an OR operation which would mix the original divider setting with the new one, resulting in an invalid configuration that can make codecs hang. Add the mask definition and use cdns_updatel to update divider Signed-off-by: Rander Wang <rander.wang@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190806005522.22642-14-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: cadence_master: make use of mclk_freq propertyPierre-Louis Bossart1-4/+10
Now that the prototype and Intel implementation are enabled, use this property to avoid hard-coded values. For example for ICL the mclk_freq value is 38.4 MHz while on CNL/CML it's 24 MHz. The mclk_freq should not be confused with the max_clk_freq, which si the maximum bus clock. The mclk_freq is typically tied to the oscillator frequency and does not change between platforms. The max_clk_freq value is linked to the maximum bandwidth needed and topology/trace length. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190806005522.22642-13-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: intel: read mclk_freq property from firmwarePierre-Louis Bossart1-0/+26
The BIOS provides an Intel-specific property, let's use it to avoid hard-coded clock dividers. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190806005522.22642-12-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: stream: remove unnecessary variable initializationsPierre-Louis Bossart1-26/+38
A number of variables don't need to be initialized. In a couple of cases where we loop on a list of runtimes, the code handling of the 'bus' variable leads to warnings that it may not be initialized. Add a specific error case to trap such cases. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190806005522.22642-10-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: stream: fix disable sequencePierre-Louis Bossart1-1/+18
When we disable the stream and then call hw_free, two bank switches will be handled and as a result we re-enable the stream on hw_free. Make sure the stream is disabled on both banks. TODO: we need to completely revisit all this and make sure we have a mirroring mechanism between current and alternate banks. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190806005522.22642-9-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: cadence_master: use firmware defaults for frame shapePierre-Louis Bossart1-3/+23
Remove hard-coding and use firmware (BIOS/DT) values. If they are wrong use default 48x2 frame shape. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190806005522.22642-7-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: export helpers to find row and column valuesPierre-Louis Bossart2-8/+13
Add a prefix for common tables and export 2 helpers to set the frame shapes based on row/col values. These changes simplify bandwidth allocation algorithms as well as the Cadence parts which all need to convert from frame shape to indices used by the standard. These helpers are used in the following patch. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190806005522.22642-6-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: bus: improve dynamic debug comments for enumerationPierre-Louis Bossart1-1/+4
update comments to provide better understanding of enumeration flows. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190806005522.22642-5-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: cadence_master: revisit interrupt settingsPierre-Louis Bossart1-4/+25
Adding missing interrupt masks (parity, etc) and missing checks. Clarify which masks are for which usage. 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/20190806005522.22642-4-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: intel: fix channel number reported by hardwarePierre-Louis Bossart1-0/+10
On all released Intel controllers (CNL/CML/ICL), PDI2 reports an invalid count, force the correct hardware-supported value This may have to be revisited with platform-specific values if the hardware changes, but for now this is good enough. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190806005522.22642-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-21soundwire: intel: prevent possible dereference in hw_paramsPierre-Louis Bossart1-2/+4
This should not happen in production systems but we should test for all callback arguments before invoking the config_stream callback. Update the prototype to clarify that the first argument is mandatory. Also use local variable instead of multiple dereferences to improve readability. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190806005522.22642-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-09soundwire: fix regmap dependencies and align with other serial linksPierre-Louis Bossart2-7/+2
The existing code has a mixed select/depend usage which makes no sense. config SOUNDWIRE_BUS tristate select REGMAP_SOUNDWIRE config REGMAP_SOUNDWIRE tristate depends on SOUNDWIRE_BUS Let's remove one layer of Kconfig definitions and align with the solutions used by all other serial links. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190718230215.18675-1-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-02soundwire: bus: split handling of Device0 eventsPierre-Louis Bossart1-0/+5
Assigning a device number to a Slave will result in additional events when it reports its status in a PING frame. There is no point in dealing with all the other devices in a loop, this can be done when a non-device0 event happens. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190725234032.21152-19-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-02soundwire: cadence_master: fix definitions for INTSTAT0/1Pierre-Louis Bossart1-2/+2
Two off-by-one errors: INTSTAT0 missed BIT(31) and INTSTAT1 is only defined on first 16 bits. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190725234032.21152-15-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-02soundwire: cadence_master: fix register definition for SLAVE_STATEPierre-Louis Bossart1-2/+2
wrong prefix and wrong macro. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190725234032.21152-14-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-02soundwire: cadence_master: simplify bus clash interrupt clearPierre-Louis Bossart1-2/+0
The bus clash interrupts are generated when the status is one, and also cleared by writing a one. It's overkill/useless to use an OR when the bit is already set. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190725234032.21152-12-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-02soundwire: intel: remove BIOS work-aroundsPierre-Louis Bossart1-11/+0
the values passed by all existing BIOS are fine, let's use them as is. The existing code must have been needed only on early prototypes. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20190725234032.21152-9-pierre-louis.bossart@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-08-02soundwire: mipi_disco: Switch to use fwnode_property_count_uXX()Andy Shevchenko1-12/+6
Use use fwnode_property_count_uXX() directly, that makes code neater. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20190723194218.69168-1-andriy.shevchenko@linux.intel.com Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-07-05Merge tag 'soundwire-5.3-rc1' of ↵Greg Kroah-Hartman7-44/+79
git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-next Vinod writes: soundwire updates for v5.3-rc1 Updates for 5.3 include: - module_sdw_driver macro for drivers - Documentation updates for code-blocks - Improvement from Pierre on intel and cadence driver - Clarification of DisCo properties and updates * tag 'soundwire-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: soundwire: add module_sdw_driver helper macro docs: soundwire: locking: fix tags for a code-block soundwire: intel_init: add checks on link numbers soundwire: fix typo in comments soundwire: Intel: add log for number of PCM and PDM PDIs soundwire: cadence_master: check the number of bidir PDIs soundwire: cadence_master: log Slave status mask on errors soundwire: cadence_master: use rate_limited dynamic debug soundwire: rename/clarify MIPI DisCo properties soundwire: clarify comment soundwire: mipi-disco: fix clock stop modes soundwire: rename 'freq' fields soundwire: mipi-disco: remove master_count property for masters soundwire: remove master data port properties soundwire: add port-related definitions soundwire: mipi_disco: fix master/link error soundwire: intel: filter SoundWire controller device search soundwire: cdns: Fix compilation error on arm64
2019-06-10Merge tag 'soundwire-5.2-rc4' of ↵Greg Kroah-Hartman2-6/+5
git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-linus Vinod writes: soundwire fixes for v5.2-rc4 Srinivas Kandagatla fixed by bunch of issues, two in core for locking and out of bound access and one in intel driver copy-paste * tag 'soundwire-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: soundwire: intel: set dai min and max channels correctly soundwire: stream: fix bad unlock balance soundwire: stream: fix out of boundary access on port properties
2019-06-06soundwire: intel: set dai min and max channels correctlySrinivas Kandagatla1-2/+2
Looks like there is a copy paste error. This patch fixes it! Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-06-06soundwire: stream: fix bad unlock balanceSrinivas Kandagatla1-1/+2
the msg lock is taken for multi-link cases only but released unconditionally, leading to an unlock balance warning for single-link usages This patch fixes this. ===================================== WARNING: bad unlock balance detected! 5.1.0-16506-gc1c383a6f0a2-dirty #1523 Tainted: G W ------------------------------------- aplay/2954 is trying to release lock (&bus->msg_lock) at: do_bank_switch+0x21c/0x480 but there are no more locks to release! Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Sanyog Kale <sanyog.r.kale@intel.com> [vkoul: edited the change log as suggested by Pierre] Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-05-27soundwire: intel_init: add checks on link numbersPierre-Louis Bossart1-0/+4
Add mask to correctly read the SoundWire SHIM LCAP register. Only bits 2..0 are meaningful, the rest is about link synchronization and stream channel mapping. Without this mask, the hardware information would always be larger than whatever the BIOS would report. Also trap the case with zero links. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Vinod Koul <vkoul@kernel.org>
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-09 04:12:14 +0300