kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
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@@ -30,6 +30,11 @@
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 - ti,hwmods : Must be "mcasp<n>", n is controller instance starting 0
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 - tx-num-evt : FIFO levels.
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 - rx-num-evt : FIFO levels.
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+- dismod : Specify the drive on TX pin during inactive slots
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+	0 : 3-state
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+	2 : logic low
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+	3 : logic high
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+	Defaults to 'logic low' when the property is not present
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 - sram-size-playback : size of sram to be allocated during playback
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 - sram-size-capture  : size of sram to be allocated during capture
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 - interrupts : Interrupt numbers for McASP
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@@ -39,6 +44,26 @@
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   		 please refer to pinctrl-bindings.txt
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 - fck_parent : Should contain a valid clock name which will be used as parent
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 	       for the McASP fck
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+- auxclk-fs-ratio: When McASP is bus master indicates the ratio between AUCLK
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+		   and FS rate if applicable:
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+		   AUCLK rate = auxclk-fs-ratio * FS rate
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+
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+Optional GPIO support:
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+If any McASP pin need to be used as GPIO then the McASP node must have:
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+...
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+  gpio-controller
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+  #gpio-cells = <2>;
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+...
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+
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+When requesting a GPIO, the first parameter is the PIN index in McASP_P*
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+registers.
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+For example to request the AXR2 pin of mcasp8:
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+function-gpios = <&mcasp8 2 0>;
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+
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+Or to request the ACLKR pin of mcasp8:
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+function-gpios = <&mcasp8 29 0>;
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+
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+For generic gpio information, please refer to bindings/gpio/gpio.txt
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 Example:
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