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| author | Axel Lin <axel.lin@ingics.com> | 2014-04-07 15:11:46 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-04-07 10:56:38 +0100 |
| commit | e2872090ca825a6625be93555c125072e52a7819 (patch) | |
| tree | d264d349b5c70c08509f008866af606c57f5f2cb /Documentation | |
| parent | 45b15d98a96ffdb3c608bdad952f51930c151420 (diff) | |
| download | linux-e2872090ca825a6625be93555c125072e52a7819.tar.gz linux-e2872090ca825a6625be93555c125072e52a7819.tar.bz2 linux-e2872090ca825a6625be93555c125072e52a7819.zip | |
spi: efm32: Update binding document to make "efm32,location" property optional
If "efm32,location" property is not provided, keeping what is already
configured in the hardware, so its either the reset default 0 or whatever
the bootloader did.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/spi/efm32-spi.txt | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/spi/efm32-spi.txt b/Documentation/devicetree/bindings/spi/efm32-spi.txt index 8f081c96a4fa..130cd17e3680 100644 --- a/Documentation/devicetree/bindings/spi/efm32-spi.txt +++ b/Documentation/devicetree/bindings/spi/efm32-spi.txt @@ -8,7 +8,13 @@ Required properties: - interrupts: pair specifying rx and tx irq - clocks: phandle to the spi clock - cs-gpios: see spi-bus.txt -- efm32,location: Value to write to the ROUTE register's LOCATION bitfield to configure the pinmux for the device, see datasheet for values. + +Recommended properties : +- efm32,location: Value to write to the ROUTE register's LOCATION bitfield to + configure the pinmux for the device, see datasheet for values. + If "efm32,location" property is not provided, keeping what is + already configured in the hardware, so its either the reset + default 0 or whatever the bootloader did. Example: |