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Filename Latest commit message Latest commit date
Hans de Goede 57b8a19287 ASoC: rt5651: Fix dac- and adc- vol-tlv values being off by a factor of 10
[ Upstream commit eee51df776bd6cac10a76b2779a9fdee3f622b2b ]

The adc_vol_tlv volume-control has a range from -17.625 dB to +30 dB,
not -176.25 dB to + 300 dB. This wrong scale is esp. a problem in userspace
apps which translate the dB scale to a linear scale. With the logarithmic
dB scale being of by a factor of 10 we loose all precision in the lower
area of the range when apps translate things to a linear scale.

E.g. the 0 dB default, which corresponds with a value of 47 of the
0 - 127 range for the control, would be shown as 0/100 in alsa-mixer.

Since the centi-dB values used in the TLV struct cannot represent the
0.375 dB step size used by these controls, change the TLV definition
for them to specify a min and max value instead of min + stepsize.

Note this mirrors commit 3f31f7d9b540 ("ASoC: rt5670: Fix dac- and adc-
vol-tlv values being off by a factor of 10") which made the exact same
change to the rt5670 codec driver.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20210226143817.84287-3-hdegoede@redhat.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-04-07 14:47:39 +02:00
arch x86/mem_encrypt: Correct physical address calculation in __set_clr_pte_enc() 2021-03-30 14:35:29 +02:00
block block: recalculate segment count for multi-segment discards correctly 2021-03-30 14:35:28 +02:00
certs
crypto crypto: x86 - Regularize glue function prototypes 2021-03-20 10:39:47 +01:00
Documentation KVM: arm64: Reject VM creation when the default IPA size is unsupported 2021-03-17 17:03:57 +01:00
drivers xen-blkback: don't leak persistent grants from xen_blkbk_map() 2021-03-30 14:35:30 +02:00
fs iomap: Fix negative assignment to unsigned sis->pages in iomap_swapfile_activate 2021-04-07 14:47:38 +02:00
include can: dev: Move device back to init netns on owning netns delete 2021-03-30 14:35:29 +02:00
init
ipc
kernel module: harden ELF info handling 2021-04-07 14:47:38 +02:00
lib PCI: Fix pci_register_io_range() memory leak 2021-03-17 17:03:44 +01:00
LICENSES
mm hugetlbfs: hugetlb_fault_mutex_hash() cleanup 2021-03-30 14:35:19 +02:00
net rpc: fix NULL dereference on kmalloc failure 2021-04-07 14:47:38 +02:00
samples samples, bpf: Add missing munmap in xdpsock 2021-03-17 17:03:33 +01:00
scripts
security integrity: double check iint_cache was initialized 2021-03-30 14:35:24 +02:00
sound ASoC: rt5651: Fix dac- and adc- vol-tlv values being off by a factor of 10 2021-04-07 14:47:39 +02:00
tools perf auxtrace: Fix auxtrace queue conflict 2021-03-30 14:35:28 +02:00
usr
virt KVM: arm64: Ensure I-cache isolation between vcpus of a same VM 2021-03-17 17:03:57 +01:00
.clang-format
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COPYING
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Makefile Linux 5.4.109 2021-03-30 14:35:30 +02:00
README

Linux kernel
============

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There are various text files in the Documentation/ subdirectory,
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Please read the Documentation/process/changes.rst file, as it contains the
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