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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2019-08-19 08:56:20 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-08-19 08:56:20 +0200 |
| commit | 6940ba22c66ac1c713500027bf5f6832442a1410 (patch) | |
| tree | a460f01b9807e1c17206a40dbc94b6f54167cf29 /dts/Bindings/sound/max98357a.txt | |
| parent | e66a790177410d7433e6672d97bb0b54455ba669 (diff) | |
| download | barebox-6940ba22c66ac1c713500027bf5f6832442a1410.tar.gz barebox-6940ba22c66ac1c713500027bf5f6832442a1410.tar.xz | |
dts: update to v5.3-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/sound/max98357a.txt')
| -rw-r--r-- | dts/Bindings/sound/max98357a.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/dts/Bindings/sound/max98357a.txt b/dts/Bindings/sound/max98357a.txt index 28645a2ff8..4bce14ce80 100644 --- a/dts/Bindings/sound/max98357a.txt +++ b/dts/Bindings/sound/max98357a.txt @@ -9,6 +9,10 @@ Optional properties: - sdmode-gpios : GPIO specifier for the chip's SD_MODE pin. If this option is not specified then driver does not manage the pin state (e.g. chip is always on). +- sdmode-delay : specify delay time for SD_MODE pin. + If this option is specified, which means it's required i2s clocks + ready before SD_MODE is unmuted in order to avoid the speaker pop noise. + It's observed that 5ms is sufficient. Example: |