Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0bcd783c authored by Timur Tabi's avatar Timur Tabi Committed by Kumar Gala
Browse files

powerpc: add fsl,fifo-depth property to Freescale SSI device nodes 



The Freescale Serial Synchronous Interface (SSI) is an audio device present on
some Freescale SOCs.  Various implementations of the SSI have a different
transmit and receive FIFO depth, but are otherwise identical.  To support
these variations, add a new property fsl,fifo-depth to the SSI node that
specifies the depth of the FIFOs.

Also update the MPC8610 HPCD device tree with this property.

Signed-off-by: default avatarTimur Tabi <timur@freescale.com>
Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
parent c3071951

Documentation/powerpc/dts-bindings/fsl/ssi.txt

+2 −0
Original line number Diff line number Diff line
@@ -30,6 +30,8 @@ Required properties: 
- fsl,capture-dma:  phandle to a node for the DMA channel to use for

                    capture (recording) of audio.  This is typically dictated

                    by SOC design.  See the notes below.

- fsl,fifo-depth:   the number of elements in the transmit and receive FIFOs.

                    This number is the maximum allowed value for SFCSR[TFWM0].



Optional properties:

- codec-handle	  : phandle to a 'codec' node that defines an audio

arch/powerpc/boot/dts/mpc8610_hpcd.dts

+2 −0
Original line number Diff line number Diff line
@@ -217,6 +217,7 @@ 
			codec-handle = <&cs4270>;

			fsl,playback-dma = <&dma00>;

			fsl,capture-dma = <&dma01>;

			fsl,fifo-depth = <8>;

		};



		ssi@16100 {
@@ -225,6 +226,7 @@ 
			reg = <0x16100 0x100>;

			interrupt-parent = <&mpic>;

			interrupts = <63 2>;

			fsl,fifo-depth = <8>;

		};



		dma@21300 {