949531d9b8
Hi,
This extends the da7213 driver to be used with simple-audio-card in
combination with a fixed clock. Here is a snippet of the downstream
board's DT, that is supposed to be supported by this patchset.
---------------------------------------------------------------------
/ {
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "audio-card";
simple-audio-card,format = "i2s";
simple-audio-card,bitclock-master = <&dailink_master>;
simple-audio-card,frame-master = <&dailink_master>;
simple-audio-card,widgets = "Speaker", "Ext Spk";
simple-audio-card,audio-routing = "Ext Spk", "LINE";
simple-audio-card,cpu {
sound-dai = <&ssi1>;
};
dailink_master: simple-audio-card,codec {
sound-dai = <&codec>;
};
};
clk_ext_audio_codec: clock-codec {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <12288000>;
};
};
&i2c1 {
codec: audio-codec@1a {
compatible = "dlg,da7212";
reg = <0x1a>;
#sound-dai-cells = <0>;
VDDA-supply = <®_2v5_audio>;
VDDSP-supply = <®_5v0_audio>;
VDDMIC-supply = <®_3v3_audio>;
VDDIO-supply = <®_3v3_audio>;
clocks = <&clk_ext_audio_codec>;
clock-names = "mclk";
};
};
---------------------------------------------------------------------
This is mostly a resend of PATCHv2. There was quite a bit of discussion
for the last patch. As far as I can see no better solution was found and
the patch is fine as is. Sorry for the delay in sending another revision.
Changes since PATCHv2:
* https://lore.kernel.org/alsa-devel/20191120152406.2744-1-sebastian.reichel@collabora.com/
* dropped patch converting DA7213 into selectable Kconfig option (merged)
* fix compatible string in patch 1 (DT binding) as pointed out by Adam Thomson
* collected Reviewed-by from Adam Thomson for patch 2-4
Changes since PATCHv1:
* https://lore.kernel.org/alsa-devel/20191108174843.11227-1-sebastian.reichel@collabora.com/
* add patch adding da7212 compatible to DT bindings
* update regulator patch, so that VDDA is enabled together with VDDIO
while the device is enabled to avoid device reset
* update clock patch, so that automatic PLL handling is not enabled
when PLL is configured manually
* update clock patch, so that automatic PLL is disabled when the device
is suspended
* update clock patch, so that automatic PLL is configured into bypass
mode when possible
-- Sebastian
Sebastian Reichel (5):
ASoC: da7213: Add da7212 DT compatible
ASoC: da7213: Add regulator support
ASoC: da7213: move set_sysclk to codec level
ASoC: da7213: move set_pll to codec level
ASoC: da7213: add default clock handling
.../devicetree/bindings/sound/da7213.txt | 8 +-
sound/soc/codecs/da7213.c | 172 ++++++++++++++++--
sound/soc/codecs/da7213.h | 11 ++
3 files changed, 175 insertions(+), 16 deletions(-)
--
2.26.2
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