This change adds MCLK clock handling directly within driver.
When used in combination with simple-audio-card, and mclk-fs is set,
simple-audio-card will change MCLK frequency before configuring PLL.
In some cases, however, MCLK reference clock should be static (see [1]),
which means it needs to be moved away from simple-audio-card.
[1]: https://lore.kernel.org/all/ZfBdxrzX3EnPuGOn@ediswmail9.ad.cirrus.com/
Signed-off-by: Andrejs Cainikovs <andrejs.cainikovs@toradex.com>
Link: https://msgid.link/r/20240613084652.13113-4-andrejs.cainikovs@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Allow configuring the two loudspeaker outputs as a
single Bridge Tied Load output getting higher output power.
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20230104140412.35575-4-francesco@dolcini.it
Signed-off-by: Mark Brown <broonie@kernel.org>
When we configure the PLL record the input and output frequency, then if we
get asked to configure the same values again just skip reprogramming the
hardware. This makes things a bit easier to use for machine drivers since
it means they don't need to keep track of if they've programmed the PLL
so much.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220603103530.3844527-1-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
We tried to enable the audio on an imx6sx EVB with the codec nau8822,
after setting the internal PLL fractional parameters, the audio still
couldn't work and the there was no sdma irq at all.
After checking with the section "8.1.1 Phase Locked Loop (PLL) Design
Example" of "NAU88C22 Datasheet Rev 0.6", we found we need to
turn off the PLL before programming fractional parameters and turn on
the PLL after programming.
After this change, the audio driver could record and play sound and
the sdma's irq is triggered when playing or recording.
Cc: David Lin <ctlin0@nuvoton.com>
Cc: John Hsu <kchsu0@nuvoton.com>
Cc: Seven Li <wtli@nuvoton.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Link: https://lore.kernel.org/r/20220530040151.95221-2-hui.wang@canonical.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The driver selects the proper BCLK divide through the BCLK and FS
at the hardware parameter when the I2S master mode.
Signed-off-by: David Lin <CTLIN0@nuvoton.com>
Signed-off-by: John Hsu <KCHSU0@nuvoton.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch updates license to SPDX-License-Identifier
instead of verbose license text.
Signed-off-by: David Lin <CTLIN0@nuvoton.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
