From: Axel Lin <axel.lin-8E1dMatC8ynQT0dZR+AlfA@public.gmane.org>
To: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: "Uwe Kleine-König"
<kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH] spi: efm32: Update binding document to make "efm32,location" property optional
Date: Mon, 07 Apr 2014 15:11:46 +0800 [thread overview]
Message-ID: <1396854706.27810.1.camel@phoenix> (raw)
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-8E1dMatC8ynQT0dZR+AlfA@public.gmane.org>
---
Documentation/devicetree/bindings/spi/efm32-spi.txt | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/spi/efm32-spi.txt b/Documentation/devicetree/bindings/spi/efm32-spi.txt
index 8f081c9..130cd17 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:
--
1.8.3.2
--
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next reply other threads:[~2014-04-07 7:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-07 7:11 Axel Lin [this message]
2014-04-07 9:47 ` [PATCH] spi: efm32: Update binding document to make "efm32,location" property optional Uwe Kleine-König
2014-04-07 9:56 ` Mark Brown
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