kernel/linux.git/include/sound/cs35l41.h, branch linux-7.0.y

ALSA: hda: cs35l41: Add support for center channel in CS35L41 HDA

2025-06-13T08:19:34+00:00

Currently only left and right channels are supported for each amp. Support is needed for a center channel, using both left and right channel audio. Signed-off-by: Stefan Binding Link: https://patch.msgid.link/20250612160029.848104-2-sbinding@opensource.cirrus.com Signed-off-by: Takashi Iwai

ASoC: Constify channel mapping array arguments in set_channel_map()

2024-05-27T00:30:58+00:00

There is no need for implementations of DAI set_channel_map() to modify contents of passed arrays with actual channel mapping. Additionally, the caller keeps full ownership of the array. Constify these pointer arguments so the code will be safer and easier to read (documenting the caller's ownership). Acked-by: Charles Keepax Signed-off-by: Krzysztof Kozlowski Link: https://msgid.link/r/20240520-asoc-x1e80100-4-channel-mapping-v4-1-f657159b4aad@linaro.org Signed-off-by: Mark Brown

ALSA: hda: cs35l41: Set the max PCM Gain using tuning setting

2024-04-18T06:43:18+00:00

Some systems requires different max PCM Gains settings than the default. The current default value, when running firmware is 17.5 dB, which is used for all systems. Some systems require lower values. Value when running without firmware is 4.5 dB and remains unchanged. Since the gain value is dependent on Tuning and Firmware, it can change, so it cannot be saved in _DSD. Instead we can store it inside a configuration binary file alongside the Firmware and Tuning files. The gain value increments in steps of 1 dB, with value 0 representing 0.5 dB. The max value is 20, which corresponds to 20.5 dB. Signed-off-by: Stefan Binding Signed-off-by: Takashi Iwai Message-ID: <20240411110813.330483-2-sbinding@opensource.cirrus.com>

ALSA: cs35l41: Fix for old systems which do not support command

2023-11-20T11:37:01+00:00

Some older laptops using cs35l41 use firmware which does not support the CSPL_MBOX_CMD_SPK_OUT_ENABLE command. Firmware versions v0.28.0 and older do not support this command. Fixes: fa3efcc36aac ("ALSA: cs35l41: Use mbox command to enable speaker output for external boost") Signed-off-by: Stefan Binding Link: https://lore.kernel.org/r/20231117163609.823627-3-sbinding@opensource.cirrus.com Signed-off-by: Takashi Iwai

ASoC: cs35l41: Detect CSPL errors when sending CSPL commands

2023-10-26T15:55:29+00:00

The existing code checks for the correct state transition after sending a command. However, it is possible for the message box to return -1, which indicates an error, if an error has occurred in the firmware. We can detect if the error has occurred, and return a different error. In addition, there is no recovering from a CSPL error, so the retry mechanism is not needed in this case, and we can return immediately. Signed-off-by: Stefan Binding Acked-by: Mark Brown Link: https://lore.kernel.org/r/20231026150558.2105827-9-sbinding@opensource.cirrus.com Signed-off-by: Takashi Iwai

ALSA: hda: cs35l41: Force a software reset after hardware reset

2023-10-26T15:55:20+00:00

To ensure the chip has correctly reset during probe and system suspend, we need to force a software reset, in case of systems where the hardware reset is not available. The software reset register was labelled as volatile but not readable, however, it is readable, (just returns 0x0). Adding it to readable registers means it will be correctly treated as volatile, and thus will not be cached. Signed-off-by: Stefan Binding Link: https://lore.kernel.org/r/20231026150558.2105827-6-sbinding@opensource.cirrus.com Signed-off-by: Takashi Iwai

ASoC: cs35l41: Fix broken shared boost activation

2023-09-11T12:34:36+00:00

Enabling the active/passive shared boosts requires setting SYNC_EN, but *not* before receiving the PLL Lock signal. Due to improper error handling, it was not obvious that waiting for the completion operation times out and, consequently, the shared boost is never activated. Further investigations revealed the signal is triggered while snd_pcm_start() is executed, right after receiving the SNDRV_PCM_TRIGGER_START command, which happens long after the SND_SOC_DAPM_PRE_PMU event handler is invoked as part of snd_pcm_prepare(). That is where cs35l41_global_enable() is called from. Increasing the wait duration doesn't help, as it only causes an unnecessary delay in the invocation of snd_pcm_start(). Moving the wait and the subsequent regmap operations to the SNDRV_PCM_TRIGGER_START callback is not a solution either, since they would be executed in an IRQ-off atomic context. Solve the issue by setting the SYNC_EN bit in PWR_CTRL3 register right after receiving the PLL Lock interrupt. Additionally, drop the unnecessary writes to PWR_CTRL1 register, part of the original mdsync_up_seq, which would have toggled GLOBAL_EN with unwanted consequences on PLL locking behavior. Fixes: f5030564938b ("ALSA: cs35l41: Add shared boost feature") Signed-off-by: Cristian Ciocaltea Reviewed-by: David Rhodes Reviewed-by: Takashi Iwai Link: https://lore.kernel.org/r/20230907171010.1447274-5-cristian.ciocaltea@collabora.com Signed-off-by: Mark Brown

ALSA: cs35l41: Use mbox command to enable speaker output for external boost

2023-07-24T08:59:58+00:00

To enable the speaker output in external boost mode, 2 registers must be set, one after another. The longer the time between the writes of the two registers, the more likely, and more loudly a pop may occur. To minimize this, an mbox command can be used to allow the firmware to perform this action, minimizing any delay between write, thus minimizing any pop or click as a result. The old method will remain when running without firmware. Acked-by: Mark Brown Signed-off-by: Stefan Binding Link: https://lore.kernel.org/r/20230721151816.2080453-2-sbinding@opensource.cirrus.com Signed-off-by: Takashi Iwai

ALSA: cs35l41: Add shared boost feature

2023-03-05T23:36:43+00:00

Shared boost allows two amplifiers to share a single boost circuit by communicating on the MDSYNC bus. The passive amplifier does not control the boost and receives data from the active amplifier. Shared Boost is not supported in HDA Systems. Based on David Rhodes shared boost patches. Signed-off-by: Lucas Tanure Reviewed-by: David Rhodes Link: https://lore.kernel.org/r/20230223084324.9076-4-lucas.tanure@collabora.com Signed-off-by: Mark Brown

Merge tag 'asoc-v5.20' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

2022-07-15T14:11:58+00:00

ASoC: Updates for v5.20 This is a big release thus far and there will probably be more changes to come, it's a combination of a larger than usual crop of new drivers and some subsysetm wide cleanups from Charles rather than anything structural. The SOF and Intel DSP code both also continue to be very actively developed. - Restructing of the set_fmt() callbacks to be specified in terms of the device rather than with semantics depending on if the device is supposed to be a CODEC or SoC, making things clearer in situations like CODEC to CODEC links. - Clean up of the way we flag which DAI naming scheme we use to reflect the progress that's been made modernising things. - Merge of more of the Intel AVS driver stack, including some board integrations. - New version 4 mechanism for communication with SOF DSPs. - Suppoort for dynamically selecting the PLL to use at runtime on i.MX platforms. - Improvements for CODEC to CODEC support in the generic cards. - Support for AMD Jadeite and various machines, Intel MetorLake DSPs, Mediatek MT8186 DSPs and MT6366, nVidia Tegra MDDRC, OPE and PEQ, NXP TFA9890, Qualcomm SDM845, WCD9335 and WAS883x, and Texas Instruments TAS2780.