diff options
| author | Timur Tabi <timur@freescale.com> | 2009-03-04 14:55:30 -0600 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2009-03-09 10:52:03 -0500 |
| commit | 0bcd783c1f0396b68410fdb41fbe196fbc1947af (patch) | |
| tree | 6e5ed09ccf8ebe014104f87382b3985affb13ee1 | |
| parent | c3071951d0acd33b5c3f820fb5eaa3a9c2a8f212 (diff) | |
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: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| -rw-r--r-- | Documentation/powerpc/dts-bindings/fsl/ssi.txt | 2 | ||||
| -rw-r--r-- | arch/powerpc/boot/dts/mpc8610_hpcd.dts | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/powerpc/dts-bindings/fsl/ssi.txt b/Documentation/powerpc/dts-bindings/fsl/ssi.txt index a2d963998a65..731332288931 100644 --- a/Documentation/powerpc/dts-bindings/fsl/ssi.txt +++ b/Documentation/powerpc/dts-bindings/fsl/ssi.txt @@ -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 diff --git a/arch/powerpc/boot/dts/mpc8610_hpcd.dts b/arch/powerpc/boot/dts/mpc8610_hpcd.dts index f724d72c7b92..1bd3ebe11437 100644 --- a/arch/powerpc/boot/dts/mpc8610_hpcd.dts +++ b/arch/powerpc/boot/dts/mpc8610_hpcd.dts @@ -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 { |