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* soundwire: amd: Fix a check for errors in probe()Dan Carpenter2023-07-131-2/+2
| | | | | | | | | | | | This code has two problems: 1) The devm_ioremap() function returns NULL, not error pointers. 2) It's checking the wrong variable. ->mmio instead of ->acp_mmio. Fixes: d8f48fbdfd9a ("soundwire: amd: Add support for AMD Manager driver") Suggested-by: "Mukunda,Vijendar" <vijendar.mukunda@amd.com> Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Link: https://lore.kernel.org/r/9863b2bf-0de2-4bf8-8f09-fe24dc5c63ff@moroto.mountain Signed-off-by: Vinod Koul <vkoul@kernel.org>
* soundwire: qcom: update status correctly with maskSrinivas Kandagatla2023-07-121-1/+1
| | | | | | | | | | SoundWire device status can be incorrectly updated without proper mask, fix this by adding a mask before updating the status. Fixes: c7d49c76d1d5 ("soundwire: qcom: add support to new interrupts") Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20230525133812.30841-2-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
* soundwire: fix enumeration completionJohan Hovold2023-07-121-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The soundwire subsystem uses two completion structures that allow drivers to wait for soundwire device to become enumerated on the bus and initialised by their drivers, respectively. The code implementing the signalling is currently broken as it does not signal all current and future waiters and also uses the wrong reinitialisation function, which can potentially lead to memory corruption if there are still waiters on the queue. Not signalling future waiters specifically breaks sound card probe deferrals as codec drivers can not tell that the soundwire device is already attached when being reprobed. Some codec runtime PM implementations suffer from similar problems as waiting for enumeration during resume can also timeout despite the device already having been enumerated. Fixes: fb9469e54fa7 ("soundwire: bus: fix race condition with enumeration_complete signaling") Fixes: a90def068127 ("soundwire: bus: fix race condition with initialization_complete signaling") Cc: stable@vger.kernel.org # 5.7 Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Cc: Rander Wang <rander.wang@linux.intel.com> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20230705123018.30903-2-johan+linaro@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
* soundwire: stream: Make master_list ordered to prevent deadlocksRichard Fitzgerald2023-06-211-2/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Always add buses to the stream->master_list in a fixed order. The unique bus->id is used to order the adding of buses to the list. This prevents lockdep asserts and possible deadlocks on streams that have multiple buses. sdw_acquire_bus_lock() takes bus_lock in the order that buses are listed in stream->master_list. do_bank_switch() takes all the msg_lock in the same order. To prevent a lockdep assert, and a possible real deadlock, the relative order of taking these mutexes must always be the same. For example, if a stream takes the mutexes in the order (bus0, bus1) lockdep will assert if another stream takes them in the order (bus1, bus0). More complex relative ordering will also assert, for example if two streams take (bus0, bus1) and (bus1, bus2), then a third stream takes (bus2, bus0). Previously sdw_stream_add_master() simply added the given bus to the end of the list, requiring the caller to guarantee that buses are added in a fixed order. This isn't reasonable or necessary - it's an internal implementation detail that should not be exposed by the API. It doesn't really make sense when there could be multiple independent calling drivers, to say "you must add your buses in the same order as a different driver, that you don't know about, added them". 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/20230615141208.679011-2-rf@opensource.cirrus.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* soundwire: bus: Prevent lockdep asserts when stream has multiple busesRichard Fitzgerald2023-06-211-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Give the bus_lock and msg_lock of each bus a different unique key so that it is possible to acquire the locks of multiple buses without lockdep asserting a possible deadlock. Using mutex_init() to initialize a mutex gives all those mutexes the same lock class. Lockdep checking treats it as an error to attempt to take a mutex while already holding a mutex of the same class. This causes a lockdep assert when sdw_acquire_bus_lock() attempts to lock multiple buses, and when do_bank_switch() takes multiple msg_lock. [ 138.697350] WARNING: possible recursive locking detected [ 138.697366] 6.3.0-test #1 Tainted: G E [ 138.697380] -------------------------------------------- [ 138.697394] play/903 is trying to acquire lock: [ 138.697409] ffff99b8c41aa8c8 (&bus->bus_lock){+.+.}-{3:3}, at: sdw_prepare_stream+0x52/0x2e0 [ 138.697443] but task is already holding lock: [ 138.697468] ffff99b8c41af8c8 (&bus->bus_lock){+.+.}-{3:3}, at: sdw_prepare_stream+0x52/0x2e0 [ 138.697493] other info that might help us debug this: [ 138.697521] Possible unsafe locking scenario: [ 138.697540] CPU0 [ 138.697550] ---- [ 138.697559] lock(&bus->bus_lock); [ 138.697570] lock(&bus->bus_lock); [ 138.697581] *** DEADLOCK *** Giving each mutex a unique key allows multiple to be held without triggering a lockdep assert. But note that it does not allow them to be taken in one order then a different order. If two mutexes are taken in the order A, B then they must always be taken in that order otherwise they could deadlock. 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/20230615141208.679011-1-rf@opensource.cirrus.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* soundwire: qcom: fix storing port config out-of-boundsKrzysztof Kozlowski2023-06-211-1/+2
| | | | | | | | | | | | | | | | | | | | The 'qcom_swrm_ctrl->pconfig' has size of QCOM_SDW_MAX_PORTS (14), however we index it starting from 1, not 0, to match real port numbers. This can lead to writing port config past 'pconfig' bounds and overwriting next member of 'qcom_swrm_ctrl' struct. Reported also by smatch: drivers/soundwire/qcom.c:1269 qcom_swrm_get_port_config() error: buffer overflow 'ctrl->pconfig' 14 <= 14 Fixes: 9916c02ccd74 ("soundwire: qcom: cleanup internal port config indexing") Cc: <stable@vger.kernel.org> Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <error27@gmail.com> Link: https://lore.kernel.org/r/202305201301.sCJ8UDKV-lkp@intel.com/ Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Link: https://lore.kernel.org/r/20230601102525.609627-1-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
* soundwire: intel_ace2x: fix SND_SOC_SOF_HDA_MLINK dependencyArnd Bergmann2023-06-211-0/+1
| | | | | | | | | | | | | | | | | | | | | | The ace2x driver can be build with or without mlink support, but when SND_SOC_SOF_HDA_MLINK is set to =m and soundwire is built-in, it fails with a link error: ld.lld: error: undefined symbol: hdac_bus_eml_sdw_wait_syncpu_unlocked >>> referenced by intel_ace2x.c >>> drivers/soundwire/intel_ace2x.o:(intel_link_power_up) in archive vmlinux.a ld.lld: error: undefined symbol: hdac_bus_eml_sdw_sync_arm_unlocked >>> referenced by intel_ace2x.c >>> drivers/soundwire/intel_ace2x.o:(intel_sync_arm) in archive vmlinux.a Add a Kconfig dependency that prevents that broken configuration but still allows soundwire to be a loadable module instead. Fixes: 4d1e2464a1104 ("soundwire: intel_ace2x: add sync_arm/sync_go helpers") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20230616090932.2714714-1-arnd@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
* soundwire: debugfs: Add missing SCP registersUday M Bhat2023-06-081-1/+8
| | | | | | | | | | | | | 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>
* soundwire: stream: Remove unnecessary gotosCharles Keepax2023-06-081-68/+56
| | | | | | | | | | | | | | | There is a lot of code using gotos to skip small sections of code, this is a fairly dubious use of a goto, especially when the level of intentation is really low. Most of this code doesn't even breach 80 characters when naively shifted over. Simplify the code a bit, by replacing these unnecessary gotos with simple ifs. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20230602101140.2040141-5-ckeepax@opensource.cirrus.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* soundwire: stream: Invert logic on runtime alloc flagsCharles Keepax2023-06-081-13/+12
| | | | | | | | | | | | | sdw_stream_add_slave/master have flags to indicate if the master or slave runtime where allocated in that call to the function. Currently these flags are cleared on all the paths where the runtime is not allocated, it is more logic and simpler to set the flag on the one path where the runtime is allocated. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20230602101140.2040141-4-ckeepax@opensource.cirrus.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* soundwire: stream: Remove unneeded checks for NULL busCharles Keepax2023-06-081-12/+2
| | | | | | | | | | | | | Version of the code prior to commit d014688eb373 ("soundwire: stream: remove bus->dev from logs on multiple buses"), used bus->dev in the error message after do_bank_switch, this necessitated some checking to ensure the bus pointer was valid. As the code no longer uses bus->dev said checking is now redundant, so remove it. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20230602101140.2040141-3-ckeepax@opensource.cirrus.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* soundwire: bandwidth allocation: Remove pointless variableCharles Keepax2023-06-081-7/+3
| | | | | | | | | | The block_offset variable in _sdw_compute_port_params adds nothing either functionally or in terms of code clarity, remove it. 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/20230602101140.2040141-2-ckeepax@opensource.cirrus.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* Merge branch 'fixes' into nextVinod Koul2023-06-083-5/+23
|\ | | | | | | | | This resolves dependecy for the series 20230602101140.2040141-1-ckeepax@opensource.cirrus.com
| * soundwire: stream: Add missing clear of alloc_slave_rtCharles Keepax2023-06-081-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | The current path that skips allocating the slave runtime does not clear the alloc_slave_rt flag, this is clearly incorrect. Add the missing clear, so the runtime won't be erroneously cleaned up. Fixes: f3016b891c8c ("soundwire: stream: sdw_stream_add_ functions can be called multiple times") 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/20230602101140.2040141-1-ckeepax@opensource.cirrus.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * soundwire: qcom: add proper error paths in qcom_swrm_startup()Krzysztof Kozlowski2023-05-271-4/+13
| | | | | | | | | | | | | | | | | | | | Reverse actions in qcom_swrm_startup() error paths to avoid leaking stream memory and keeping runtime PM unbalanced. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20230517163736.997553-1-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
| * soundwire: dmi-quirks: add new mapping for HP Spectre x360Pierre-Louis Bossart2023-05-271-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | A BIOS/DMI update seems to have broken some devices, let's add a new mapping. Link: https://github.com/thesofproject/linux/issues/4323 Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20230515074859.3097-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: cadence: revisit parity injectionPierre-Louis Bossart2023-05-291-9/+10
| | | | | | | | | | | | | | | | | | | | | | We want to wait for the CONFIG_UPDATE bit to clear before doing something else. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20230518024119.164160-4-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel/cadence: update hardware reset sequencePierre-Louis Bossart2023-05-293-17/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Combining hardware reset with the multi-link mode leads to a shortened hardware reset pattern observed on the bus. The updated hardware programming sequence is to first enable the clock with the sync_arm/sync_go pattern, and only in a second step to issue the hardware reset sequence. Since there is no longer a dependency between sync_arm/sync_go and hw_reset, the behavior of sdw_cdns_exit_reset() is changed to wait for the self-clearing CONFIG_UPDATE to go back to zero, Link: https://github.com/thesofproject/linux/issues/4170 Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20230518024119.164160-3-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_bus_common: enable interrupts lastPierre-Louis Bossart2023-05-291-31/+26
| | | | | | | | | | | | | | | | | | | | | | | | It's not clear why we enabled interrupts in the Cadence IP first. The logical programming sequence should be to first start the bus, and only second to enable the interrupts. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20230518024119.164160-2-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_bus_common: update error logPierre-Louis Bossart2023-05-291-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | We use __func__ in all calls of sdw_cdns_check_self_clearing_bits(), except in one case. Likely an editing miss when the code was refactored. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20230518024215.164281-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: amd: Improve error message in remove callbackUwe Kleine-König2023-05-291-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Returning an error code in the remove callback yields to an error message remove callback returned a non-zero value. This will be ignored. After that the device is removed anyhow. Improve the error message to at least say what the actual problem is. While touching that code, convert the driver to the .remove_new() callback which returns no value with the same effect as returning zero in a .remove() callback. As the return value is ignored by the core the only effect of this patch is to improve the error message. (And the motivating effect is that there is one less driver using .remove().) Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230518200823.249795-1-u.kleine-koenig@pengutronix.de Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: debugfs: fix unbalanced pm_runtime_put()Krzysztof Kozlowski2023-05-291-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | 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: b275bf45ba1d ("soundwire: debugfs: Switch to sdw_read_no_pm") Signed-off-by: Krzysztof Kozlowski <krzysztof.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>
* | soundwire: qcom: fix unbalanced pm_runtime_put()Krzysztof Kozlowski2023-05-291-6/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 57ed510b0547 ("soundwire: qcom: use pm_runtime_resume_and_get()") which introduced unbalanced pm_runtime_put(), when device did not have runtime PM enabled. 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 visible in certain debugfs actions on unattached devices (still in reset state): $ cat /sys/kernel/debug/soundwire/master-0-0/sdw:0:0217:f001:00:0/registers qcom-soundwire 3210000.soundwire-controller: swrm_wait_for_wr_fifo_avail err write overflow soundwire sdw-master-0: trf on Slave 1 failed:-5 read addr e36 count 1 soundwire sdw:0:0217:f001:00:0: Runtime PM usage count underflow! Fixes: 57ed510b0547 ("soundwire: qcom: use pm_runtime_resume_and_get()") Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20230517163750.997629-1-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: qcom: set clk stop need reset flag at runtimeSrinivas Kandagatla2023-05-291-9/+4
| | | | | | | | | | | | | | | | | | | | | | | | WSA Soundwire controller needs an full reset if clock stop support is not available in slave devices. WSA881x does not support clock stop however WSA883x supports clock stop. Make setting this flag at runtime to address above issue. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20230525133812.30841-5-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: qcom: add software workaround for bus clash interrupt assertionSrinivas Kandagatla2023-05-291-22/+34
| | | | | | | | | | | | | | | | | | | | | | Sometimes Hard reset does not clear some of the registers, this sometimes results in firing a bus clash interrupt. Add workaround for this during power up sequence, as suggested by hardware manual. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20230525133812.30841-4-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: qcom: wait for fifo to be empty before suspendSrinivas Kandagatla2023-05-291-0/+29
| | | | | | | | | | | | | | | | | | Wait for Fifo to be empty before going to suspend or before bank switch happens. Just to make sure that all the reads/writes are done. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Link: https://lore.kernel.org/r/20230525133812.30841-3-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: qcom: drop unused struct qcom_swrm_ctrl membersKrzysztof Kozlowski2023-05-271-3/+0
| | | | | | | | | | | | | | | | | | Drop unused members from the driver state container: struct qcom_swrm_ctrl. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Link: https://lore.kernel.org/r/20230515132000.399745-1-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel: read AC timing control register before updating itChao Song2023-05-271-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Start from ACE1.x, DOAISE is added to AC timing control register bit 5, it combines with DOAIS to get effective timing, and has the default value 1. The current code fills DOAIS, DACTQE and DODS bits to a variable initialized to zero, and updates the variable to AC timing control register. With this operation, We change DOAISE to 0, and force a much more aggressive timing. The timing is even unable to form a working waveform on SDA pin on Meteorlake. This patch uses read-modify-write operation for the AC timing control register access, thus makes sure those bits not supposed and intended to change are not touched. Signed-off-by: Chao Song <chao.song@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20230515081301.12921-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel: remove .free callback implementationPierre-Louis Bossart2023-05-271-36/+1
| | | | | | | | | | | | | | | | | | | | | | | | The interface is not needed for IPC3 solution but will be needed with an updated parameter list for ACE2.x+IPC4 combinations. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@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/20230515071042.2038-26-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel: remove .trigger callback implementationPierre-Louis Bossart2023-05-271-9/+0
| | | | | | | | | | | | | | | | | | | | | | | | The interface is not needed for IPC3 solutions but will be needed with an updated parameter list for ACE2.x+IPC4 combinations. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@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/20230515071042.2038-24-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | ASoC: SOF/soundwire: re-add substream in params_stream structurePierre-Louis Bossart2023-05-271-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | An earlier simplification to only pass the direction is no longer suitable, all the ACE2.x HDaudio DMA management relies on access to the substream structure. This patch is an iso-functionality change, the HDaudio DMA parts will be provided separately. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@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/20230515071042.2038-23-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_ace2x: add pre/post bank switch callbacksPierre-Louis Bossart2023-05-271-0/+3
| | | | | | | | | | | | | | | | | | | | | | The .pre_ and .post_switch callbacks are mandatory. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@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/20230515071042.2038-22-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_ace2x: add new_peripheral_assigned callbackPierre-Louis Bossart2023-05-272-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the abstraction needed to only program the LSDIID registers for the HDaudio extended links. It's perfectly fine to program this register multiple times in case devices lose sync and reattach. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-21-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: bus: add new manager callback to deal with peripheral enumerationPierre-Louis Bossart2023-05-271-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When a peripheral reports as ATTACHED, the manager may need to follow a programming sequence, e.g. to assign DMA resources and/or assign a command queue for that peripheral. This patch adds an optional callback, which will be invoked every time the peripheral attaches. This might be overkill in some scenarios, and one could argue that this should be invoked only on the first attachment. The bus does not however track this first attachment with any existing state-mirroring variable, and using dev_num_sticky would not work across suspend-resume cycles. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-20-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_ace2x: add check_cmdsync_unlocked helperPierre-Louis Bossart2023-05-271-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | This is the last callback needed for all bus management routines on new hardware. Same concept as before, just different register. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-19-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_ace2x: enable wake supportPierre-Louis Bossart2023-05-271-0/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | The WAKEEN and WAKESTS registers were moved to the per-link SHIM_VS area. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-18-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_ace2x: use common helpers for bus start/stopPierre-Louis Bossart2023-05-271-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The sequences are so far identical, so the abstraction is a bit over-engineered. In time we will simplify if there is no need to special case or work-around programming sequences. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-17-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_ace2x: add sync_arm/sync_go helpersPierre-Louis Bossart2023-05-271-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | Same functionality as before, but with the registers moved to the HDaudio multi-link area. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-16-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_ace2x: add DAI registrationPierre-Louis Bossart2023-05-271-0/+161
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The code is similar to the previous implementation, the only difference is that the PDI descriptors are now in different areas. Using common helpers proves tricky with multiple changed registers, workarounds that are no longer necessary. It's simpler to duplicate the intel_register_dai() function rather than try to add multiple levels of abstraction and indirections. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-15-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_ace2x: configure link PHYPierre-Louis Bossart2023-05-271-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unlike previous hardware generations, the glue-to-master transition is not managed by software, instead the transitions are managed as part of the power-up/down sequences controlled by SPA/CPA bits. The only thing that's required is to configure the link PHY for 'normal' operation instead of the PHY test mode. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-14-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_ace2x: set SYNCPRD before powering-upPierre-Louis Bossart2023-05-271-2/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The registers used for multi-link synchronization are no longer in the SHIM but in the HDaudio multi-link capability space. Use helpers to configure the SYNCPRD value, and wait for SYNCPU to change after powering-up. Note that the SYNCPRD value is shared between all sublinks, for obvious reasons if those links are supposed to be synchronized. The value of SYNCPRD is programmed only once for all sublinks. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-13-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_ace2x: add link power-up/down helpersPierre-Louis Bossart2023-05-271-0/+50
| | | | | | | | | | | | | | | | | | | | | | | | only power-up/down for now, the frequency is not set. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-12-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_ace2x: add debugfs supportPierre-Louis Bossart2023-05-274-1/+159
| | | | | | | | | | | | | | | | | | | | | | | | Add access to registers in SHIM and SHIM_VS (vendor-specific) areas. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-11-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_init: use eml_lock parameterPierre-Louis Bossart2023-05-271-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that the ASoC/SOF/HDAudio parts has retrieved the mutex and set the parameter, we can use it to share the same synchronization across the two domains. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-10-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | ASoC/soundwire: intel: pass hdac_bus pointer for link managementPierre-Louis Bossart2023-05-272-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The hdac_bus pointer is used to access the extended link information and handle power management. Pass it from the SOF driver down to the auxiliary devices. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20230515071042.2038-7-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel/cadence: set ip_offset at run-timePierre-Louis Bossart2023-05-274-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Select relevant ip-offset depending on hardware version. This offset is used to access MCP_ or IP_MCP_ registers with a fixed offset. For existing platforms, the offset is exactly zero. Starting with LunarLake, the offset is 0x4000. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-6-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire/ASOC: Intel: update offsets for LunarLakePierre-Louis Bossart2023-05-272-4/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The previous settings are not applicable, use a flag to determine what the register layout is. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20230515071042.2038-5-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: intel_ace2x: add empty new ops for LunarLakePierre-Louis Bossart2023-05-272-1/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The register map and programming sequences for the ACE2.x IP are completely different and need to be abstracted with a different set of callbacks. This initial patch adds a new file, follow-up patches will add each required callback. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@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/20230515071042.2038-4-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: bus: Don't filter slave alertsCharles Keepax2023-05-081-8/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It makes sense to have only a single point responsible for ensuring that all currently pending IRQs are handled. The current code in sdw_handle_slave_alerts confusingly splits this process in two. This code will loop until the asserted IRQs are cleared but it will only handle IRQs that were already asserted when it was called. This means the caller must also loop (either manually, or through its IRQ mechanism) until the IRQs are all handled. It makes sense to either do all the looping in sdw_handle_slave_alerts or do no looping there and let the host controller repeatedly call it until things are handled. There are realistically two sensible host controllers, those that will generate an IRQ when the alert status changes and those that will generate an IRQ continuously whilst the alert status is high. The current code will work fine for the second of those systems but not the first with out additional looping in the host controller. Removing the code that filters out new IRQs whilst the handler is running enables both types of host controller to be supported and simplifies the code. The code will still only loop up to SDW_READ_INTR_CLEAR_RETRY times, so it shouldn't be possible for it to get completely stuck handling IRQs forever, and if you are generating IRQs faster than you can handle them you likely have bigger problems anyway. This fixes an issue on the Cadence SoundWire IP, which only generates IRQs on an alert status change, where an alert which arrives whilst another alert is being handled will never be handled and will block all future alerts from being handled. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20230418140650.297279-1-ckeepax@opensource.cirrus.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
* | soundwire: qcom: use tabs for indentation in definesKrzysztof Kozlowski2023-05-081-17/+17
| | | | | | | | | | | | | | | | | | | | Use consistently only tabs to indent the value in defines. Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230418095447.577001-8-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-14 19:54:56 +0000