kernel/include/sound/soc-dapm.h, branch linux-5.2.y

ASoC: dapm: harden use of lookup tables

2019-02-06T17:32:02Z

To detect potential errors, let's add: a) build-time warnings when the table size isn't aligned with the enum list b) run-time warnings when the values are not initialized. This requires an increase by one of all values to avoid the default 0. Suggested-by: Takashi Iwai Signed-off-by: Pierre-Louis Bossart Signed-off-by: Mark Brown

ASoC: dapm: Only power up active channels from a DAI

2019-02-02T16:15:17Z

Currently all widgets attached to a DAI link will be powered up when the DAI is active, however this may include routes that are not actually in use if there are unused channels available on the DAI. The macros for creating AIF widgets already include an entry for slot, it is proposed to change that to channel. The effective difference here being respresenting the logical channel index rather than the physical slot index. The CODECs currently using the slot entry on the DAPM_AIF macros are using it in a manner consistent with this, the CODECs not using it just have the field set to zero. A variable is added to snd_soc_dapm_widget to represent this channel index and then for each AIF widget attached to a DAI this is compared against the number of channels on the stream. Enabling the links for those which will be in use. This has the nice property that the CODECs which haven't used the slot/channel entry in the macro will function exactly as before due to all the AIF widgets having a channel of zero and a stream by definition having at least one channel. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown

ASoC: topology: add SND_SOC_DOBJ_GRAPH type for dapm routes

2019-01-29T18:03:44Z

Add a new dobj type SND_SOC_DOBJ_GRAPH for dapm routes and add snd_soc_dobj member to struct snd_soc_dapm_route. This enables device drivers to save driver specific data pertaining to dapm routes and also be able to clean up the data when the driver module is unloaded. Also, reorder the snd_soc_dobj_type types to align with matching topology header types. Signed-off-by: Ranjani Sridharan Signed-off-by: Pierre-Louis Bossart Signed-off-by: Mark Brown

ASoC: dapm: Move CODEC to CODEC params from the widget to the runtime

2018-09-05T16:11:32Z

Larger CODECs may contain many several hundred widgets and which set of parameters is selected only needs to be recorded on a per DAI basis. As such move the selected CODEC to CODEC link params to be stored in the runtime rather than the DAPM widget, to save some memory. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown

ASoC: dapm: Move connection of CODEC to CODEC DAIs

2018-09-05T16:11:25Z

Currently, snd_soc_dapm_connect_dai_link_widgets connects up the routes representing normal DAIs, however CODEC to CODEC links are hooked up through separate infrastructure in soc_link_dai_widgets. Improve the consistency of the code by using snd_soc_dapm_connect_dai_link for both types of DAIs. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown

ASoC: dapm: Fix NULL pointer deference on CODEC to CODEC DAIs

2018-08-15T14:52:20Z

Commit a655de808cbde ("ASoC: core: Allow topology to override machine driver FE DAI link config.") caused soc_dai_hw_params to be come dependent on the substream private_data being set with a pointer to the snd_soc_pcm_runtime. Currently, CODEC to CODEC links don't set this, which causes a NULL pointer dereference: [<4069de54>] (soc_dai_hw_params) from [<40694b68>] (snd_soc_dai_link_event+0x1a0/0x380) Since the ASoC core in general assumes that the substream private_data will be set to a pointer to the snd_soc_pcm_runtime, update the CODEC to CODEC links to respect this. Signed-off-by: Charles Keepax Signed-off-by: Mark Brown

ASoC: soc-dapm: convert to SPDX identifiers

2018-07-02T09:55:38Z

Signed-off-by: Kuninori Morimoto Signed-off-by: Mark Brown

ASoC: dapm: add support to pinctrl dapm

2018-03-13T16:45:01Z

Purpose of having pinctrl dapm is to dynamically put the pins in low power state when they are not actively used by the audio and saving power. Without this each driver has to set the pinctrl states, either during probe or dynamically depending on the callbacks received from ASoC core. Signed-off-by: Srinivas Kandagatla Signed-off-by: Mark Brown

ASoC: dapm: Add new widget type for constructing DAPM graphs on DSPs.

2017-06-30T10:55:20Z

Add some DAPM widget types to better support the construction of DAPM graphs within DSPs. Signed-off-by: Liam Girdwood Signed-off-by: Mark Brown

ASoC: dapm: Introduce DAPM_DOUBLE_R dual channel dual register control type

2016-11-02T15:55:30Z

A DAPM_DOUBLE_R control type can be used for dual channel mixer input selectors / mute controls across 2 registers, possibly toggling both channels together. The control is meant to be shared by 2 widgets, 1 for each channel, such that the mixer control exposed to userspace remains a combined stereo control. Signed-off-by: Chen-Yu Tsai Signed-off-by: Mark Brown