There was a plan to deprecate master volume control since it was thought
that per channel control will be sufficient and master volume application
can be emulated in user space by programming same volume to all channels.
But this means we would not really use a HW feature which has a provision
to automatically apply CH0 volume settings to all remaining channels.
HW has a per channel control bit, based on which it decides to apply a
channel specific setting or a common setting across all channels. Driver
has both master volume and per channel volume mixer controls. Based on
the control user updates, enable or disable the per channel control.
Use below scheme for volume updates:
* If master volume mixer control is updated, disable per channel control
and only CH0 volume register is programmed. SW can store same volume
across all channels.
* If a channel specific control is updated, enable per channel control
and program specific channel volume register.
Above applies to mute/unmute functions as well and thus corresponding
control blocks are similarly updated.
The volume settings are stored in SW and the same is used for the user
space queries via mixer controls. But mute settings are not stored in
SW and are always directly read from HW since it belongs to a volatile
register. The mute control read function is modified to return proper
settings when queried from user space.
Bug 200766084
Change-Id: Iad8b5c09c424731e841863bfd5ce32d07ff9e684
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-5.10/+/2599601
Reviewed-by: Sheetal . <sheetal@nvidia.com>
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Asha Talambedu <atalambedu@nvidia.com>
Reviewed-by: Mohan Kumar D <mkumard@nvidia.com>
Reviewed-by: Sharad Gupta <sharadg@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Remove unused macros in MVC driver and use shorter names for remaining
macros wherever possible. This makes code look relatively compact and
cleaner. Also provide separate callbacks for readable/writable_reg()
and use register ranges for case statments.
Bug 200698314
Change-Id: Ia61a824fce5531b74b67b6ebf8e5216c7a982c17
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Following changes are pushed as part of this commit:
- Update copyright signature as per new format.
- Remove references to "_ALT_" in header macros.
- Fix copyright year for I2S, DMIC, DSPK, ADMAIF and XBAR drivers.
- Fix file name in source header for Machine Utility driver.
Bug 2845498
Change-Id: I18b040a9d48a86a33f3ac6b6932d55e81d6414ac
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-5.9/+/2354014
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Mohan Kumar D <mkumard@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Following AHUB modules are considered as part of this series. This updates
all drivers to use component structure. Initially AHUB, I2S, DMIC, DSPK
and ADMAIF drivers were updated.
FPGA code is removed from the related drivers. This can be cherry-picked
if it is really required.
Bug 2845498
Change-Id: Ia3f60257c225d281d86ad83325fb517969259cb4
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Tegra210 and later audio drivers have been using 'tegra-alt' directory
from the beginning. As per the upstream roadmap, we plan to use the
same 'tegra' directory and place all the drivers under it. This patch
thus moves all the drivers to 'tegra' and renames the files accordingly.
The '_alt' suffix is removed from header and source files.
For some files still the '_alt' suffix is retained because 'tegra'
already has the corresponding files. Manual merge of following files is
needed and will be done in separate commits.
* tegra_asoc_utils_alt.c and tegra_asoc_utils.c
* tegra_asoc_utils_alt.h and tegra_asoc_utils.h
* tegra_pcm_alt.c and tegra_pcm.c
* tegra_pcm_alt.h and tegra_pcm.h
* Corresponding Makefile and Kconfig files.
* Source files related to ADSP audio, FPGA, bandwidth manager are not
considered at the moment and will be tracked separately.
Bug 2845498
Change-Id: I51dae3971c72b58d921dc19f0553a83422fd3f9e
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
