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46188db080
The LPASS WSA macro codec driver is updating the digital gain settings
behind the back of user space on DAPM events if companding has been
enabled.
As compander control is exported to user space, this can result in the
digital gain setting being incremented (or decremented) every time the
sound server is started and the codec suspended depending on what the
UCM configuration looks like.
Soon enough playback will become distorted (or too quiet).
This is specifically a problem on the Lenovo ThinkPad X13s as this
bypasses the limit for the digital gain setting that has been set by the
machine driver.
Fix this by simply dropping the compander gain offset hack. If someone
cares about modelling the impact of the compander setting this can
possibly be done by exporting it as a volume control later.
Note that the volume registers still need to be written after enabling
clocks in order for any prior updates to take effect.
Fixes:
|
||
|---|---|---|
| .. | ||
| adi | ||
| amd | ||
| apple | ||
| atmel | ||
| au1x | ||
| bcm | ||
| cirrus | ||
| codecs | ||
| dwc | ||
| fsl | ||
| generic | ||
| hisilicon | ||
| img | ||
| intel | ||
| jz4740 | ||
| kirkwood | ||
| loongson | ||
| mediatek | ||
| meson | ||
| mxs | ||
| pxa | ||
| qcom | ||
| rockchip | ||
| samsung | ||
| sh | ||
| sof | ||
| spear | ||
| sprd | ||
| starfive | ||
| sti | ||
| stm | ||
| sunxi | ||
| tegra | ||
| ti | ||
| uniphier | ||
| ux500 | ||
| xilinx | ||
| xtensa | ||
| Kconfig | ||
| Makefile | ||
| soc-ac97.c | ||
| soc-acpi.c | ||
| soc-card.c | ||
| soc-component.c | ||
| soc-compress.c | ||
| soc-core.c | ||
| soc-dai.c | ||
| soc-dapm.c | ||
| soc-devres.c | ||
| soc-generic-dmaengine-pcm.c | ||
| soc-jack.c | ||
| soc-link.c | ||
| soc-ops.c | ||
| soc-pcm.c | ||
| soc-topology-test.c | ||
| soc-topology.c | ||
| soc-utils-test.c | ||
| soc-utils.c | ||