diff options
| author | Sameer Pujar <spujar@nvidia.com> | 2021-11-30 18:53:25 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-12-01 14:15:39 +0000 |
| commit | 0d242698fa693ab8cb98c11ba7cf7fc8f7242c0b (patch) | |
| tree | 5a3aadc9382b3f49969ed92f83230a0679e68198 /sound/soc/tegra/tegra210_mvc.h | |
| parent | 67140b64b68395b79177efcd16a7530ed5311e49 (diff) | |
ASoC: tegra: Add master volume/mute control support
The MVC module has a per channel control bit, based on which it decides
to apply channel specific volume/mute settings. When per channel control
bit is enabled (which is the default HW configuration), all MVC channel
volume/mute can be independently controlled. If the control is disabled,
channel-0 volume/mute setting is applied by HW to all remaining channels.
Thus add support to leverage this HW feature by exposing master controls
for volume/mute.
With this, now there are per channel and master volume/mute controls.
Users need to just use controls which are suitable for their applications.
The per channel control enable/disable is mananged in driver and hidden
from users, so that they need to just worry about respective volume/mute
controls.
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1638278605-28225-1-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/tegra/tegra210_mvc.h')
| -rw-r--r-- | sound/soc/tegra/tegra210_mvc.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/soc/tegra/tegra210_mvc.h b/sound/soc/tegra/tegra210_mvc.h index def29c4c7257..d775335dc60b 100644 --- a/sound/soc/tegra/tegra210_mvc.h +++ b/sound/soc/tegra/tegra210_mvc.h @@ -59,6 +59,7 @@ #define TEGRA210_MUTE_MASK_EN 0xff #define TEGRA210_MVC_MUTE_MASK (TEGRA210_MUTE_MASK_EN << TEGRA210_MVC_MUTE_SHIFT) #define TEGRA210_MVC_MUTE_EN (TEGRA210_MUTE_MASK_EN << TEGRA210_MVC_MUTE_SHIFT) +#define TEGRA210_MVC_CH0_MUTE_EN 1 #define TEGRA210_MVC_PER_CHAN_CTRL_EN_SHIFT 30 #define TEGRA210_MVC_PER_CHAN_CTRL_EN_MASK (1 << TEGRA210_MVC_PER_CHAN_CTRL_EN_SHIFT) @@ -92,6 +93,10 @@ #define TEGRA210_MVC_MAX_CHAN_COUNT 8 #define TEGRA210_MVC_REG_OFFSET(reg, i) (reg + (REG_SIZE * i)) +#define TEGRA210_MVC_GET_CHAN(reg, base) (((reg) - (base)) / REG_SIZE) + +#define TEGRA210_GET_MUTE_VAL(val) (((val) >> TEGRA210_MVC_MUTE_SHIFT) & TEGRA210_MUTE_MASK_EN) + #define NUM_GAIN_POLY_COEFFS 9 enum { |