From: Axel Lin Date: Mon, 7 Apr 2014 07:11:46 +0000 (+0800) Subject: spi: efm32: Update binding document to make "efm32,location" property optional X-Git-Tag: firefly_0821_release~176^2~4079^2^3 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e2872090ca825a6625be93555c125072e52a7819;p=firefly-linux-kernel-4.4.55.git 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 Acked-by: Uwe Kleine-König Signed-off-by: Mark Brown --- 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: