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| author | holt@sgi.com <holt@sgi.com> | 2011-08-16 19:32:23 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-08-18 05:36:38 +0200 |
| commit | 97efe9aef1ae8922666d32f28d712745a86859e9 (patch) | |
| tree | c02a00d17b63b8454dd69d874bc207fccb8d0aa7 /Documentation/devicetree | |
| parent | flexcan: Add of_match to platform_device definition. (diff) | |
| download | linux-97efe9aef1ae8922666d32f28d712745a86859e9.tar.xz linux-97efe9aef1ae8922666d32f28d712745a86859e9.zip | |
flexcan: Prefer device tree clock frequency if available.
If our CAN device's device tree node has a clock-frequency property,
then use that value for the can devices clock frequency. If not, fall
back to asking the platform/mach code for the clock frequency associated
with the flexcan device.
Signed-off-by: Robin Holt <holt@sgi.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>,
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>,
Cc: U Bhaskar-B22300 <B22300@freescale.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: socketcan-core@lists.berlios.de,
Cc: netdev@vger.kernel.org,
Cc: PPC list <linuxppc-dev@lists.ozlabs.org>
Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/net/can/fsl-flexcan.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt index 8dfb98b6e3e2..1ad80d5865a9 100644 --- a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt +++ b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt @@ -11,6 +11,7 @@ Required properties: - reg : Offset and length of the register set for this device - interrupts : Interrupt tuple for this device +- clock-frequency : The oscillator frequency driving the flexcan device Example: @@ -19,4 +20,5 @@ Example: reg = <0x1c000 0x1000>; interrupts = <48 0x2>; interrupt-parent = <&mpic>; + clock-frequency = <200000000>; // filled in by bootloader }; |