kernel/linux.git/drivers/soundwire/qcom.c, branch v5.15.208

soundwire: qcom: update status correctly with mask

2023-08-03T08:22:33+00:00

[ Upstream commit f84d41b2a083b990cbdf70f3b24b6b108b9678ad ] 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 Link: https://lore.kernel.org/r/20230525133812.30841-2-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin

soundwire: qcom: fix storing port config out-of-bounds

2023-07-23T11:47:54+00:00

commit 490937d479abe5f6584e69b96df066bc87be92e9 upstream. 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: Reported-by: kernel test robot Reported-by: Dan Carpenter Link: https://lore.kernel.org/r/202305201301.sCJ8UDKV-lkp@intel.com/ Signed-off-by: Krzysztof Kozlowski Reviewed-by: Konrad Dybcio Link: https://lore.kernel.org/r/20230601102525.609627-1-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman

soundwire: qcom: gracefully handle too many ports in DT

2023-05-24T16:36:48+00:00

[ Upstream commit 2367e0ecb498764e95cfda691ff0828f7d25f9a4 ] There are two issues related to the number of ports coming from Devicetree when exceeding in total QCOM_SDW_MAX_PORTS. Both lead to incorrect memory accesses: 1. With DTS having too big value of input or output ports, the driver, when copying port parameters from local/stack arrays into 'pconfig' array in 'struct qcom_swrm_ctrl', will iterate over their sizes. 2. If DTS also has too many parameters for these ports (e.g. qcom,ports-sinterval-low), the driver will overflow buffers on the stack when reading these properties from DTS. Add a sanity check so incorrect DTS will not cause kernel memory corruption. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Srinivas Kandagatla Reviewed-by: Konrad Dybcio Link: https://lore.kernel.org/r/20230222144412.237832-2-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin

soundwire: qcom: correct setting ignore bit on v1.5.1

2023-05-11T14:00:17+00:00

commit bd934f77eeac377e81ddac8673803e7334b82d3d upstream. According to the comment and to downstream sources, the SWRM_CONTINUE_EXEC_ON_CMD_IGNORE in SWRM_CMD_FIFO_CFG_ADDR register should be set for v1.5.1 and newer, so fix the >= operator. Fixes: 542d3491cdd7 ("soundwire: qcom: set continue execution flag for ignored commands") Cc: Signed-off-by: Krzysztof Kozlowski Reviewed-by: Konrad Dybcio Link: https://lore.kernel.org/r/20230222140343.188691-1-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman

ASoC/SoundWire: dai: expand 'stream' concept beyond SoundWire

2023-01-12T10:58:49+00:00

commit e8444560b4d9302a511f0996f4cfdf85b628f4ca upstream. The HDAudio ASoC support relies on the set_tdm_slots() helper to store the HDaudio stream tag in the tx_mask. This only works because of the pre-existing order in soc-pcm.c, where the hw_params() is handled for codec_dais *before* cpu_dais. When the order is reversed, the stream_tag is used as a mask in the codec fixup functions: /* fixup params based on TDM slot masks */ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK && codec_dai->tx_mask) soc_pcm_codec_params_fixup(&codec_params, codec_dai->tx_mask); As a result of this confusion, the codec_params_fixup() ends-up generating bad channel masks, depending on what stream_tag was allocated. We could add a flag to state that the tx_mask is really not a mask, but it would be quite ugly to persist in overloading concepts. Instead, this patch suggests a more generic get/set 'stream' API based on the existing model for SoundWire. We can expand the concept to store 'stream' opaque information that is specific to different DAI types. In the case of HDAudio DAIs, we only need to store a stream tag as an unsigned char pointer. The TDM rx_ and tx_masks should really only be used to store masks. Rename get_sdw_stream/set_sdw_stream callbacks and helpers as get_stream/set_stream. No functionality change beyond the rename. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Reviewed-by: Ranjani Sridharan Signed-off-by: Bard Liao Acked-By: Vinod Koul Link: https://lore.kernel.org/r/20211224021034.26635-5-yung-chuan.liao@linux.intel.com Signed-off-by: Mark Brown Cc: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

soundwire: qcom: check for outanding writes before doing a read

2022-11-16T08:58:14+00:00

[ Upstream commit 49a467310dc4fae591a3547860ee04d8730780f4 ] Reading will increase the fifo count, so check for outstanding cmd wrt. write fifo depth to avoid overflow as read will also increase write fifo cnt. Fixes: a661308c34de ("soundwire: qcom: wait for fifo space to be available before read/write") Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20221026110210.6575-3-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin

soundwire: qcom: reinit broadcast completion

2022-11-16T08:58:14+00:00

[ Upstream commit f936fa7a954b262cb3908bbc8f01ba19dfaf9fbf ] For some reason we never reinit the broadcast completion, there is a danger that broadcast commands could be treated as completed by driver from previous complete status. Fix this by reinitializing the completion before sending a broadcast command. Fixes: ddea6cf7b619 ("soundwire: qcom: update register read/write routine") Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20221026110210.6575-2-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin

soundwire: qcom: fix device status array range

2022-09-08T10:28:03+00:00

[ Upstream commit 4ef3f2aff1267bfa6d5a90c42a30b927b8aa239b ] This patch updates device status array range from 11 to 12 as we will be reading status from device number 0 to device number 11 inclusive. Without this patch we can potentially access status array out of range during auto-enumeration. Fixes: aa1262ca6695 ("soundwire: qcom: Check device status before reading devid") Reported-by: Dan Carpenter Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220708104747.8722-1-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin

soundwire: qcom: Check device status before reading devid

2022-08-17T12:22:56+00:00

commit aa1262ca66957183ea1fb32a067e145b995f3744 upstream. As per hardware datasheet its recommended that we check the device status before reading devid assigned by auto-enumeration. Without this patch we see SoundWire devices with invalid enumeration addresses on the bus. Cc: stable@vger.kernel.org Fixes: a6e6581942ca ("soundwire: qcom: add auto enumeration support") Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220706095644.5852-1-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman

soundwire: qcom: adjust autoenumeration timeout

2022-06-14T16:36:21+00:00

[ Upstream commit 74da272400b46f2e898f115d1b1cd60828766919 ] Currently timeout for autoenumeration during probe and bus reset is set to 2 secs which is really a big value. This can have an adverse effect on boot time if the slave device is not ready/reset. This was the case with wcd938x which was not reset yet but we spent 2 secs waiting in the soundwire controller probe. Reduce this time to 1/10 of Hz which should be good enough time to finish autoenumeration if any slaves are available on the bus. Reported-by: Srinivasa Rao Mandadapu Signed-off-by: Srinivas Kandagatla Link: https://lore.kernel.org/r/20220506084705.18525-1-srinivas.kandagatla@linaro.org Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin