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From: Emmanuel Vadot <manu@bidouilliste.com>
To: robh+dt@kernel.org, mark.rutland@arm.com, linux@armlinux.org.uk,
	maxime.ripard@free-electrons.com, wens@csie.org
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Emmanuel Vadot <manu@bidouilliste.com>
Subject: [PATCH v3] ARM: dts: sunxi: Add num-cs for A20 spi nodes
Date: Tue, 27 Dec 2016 11:28:07 +0100	[thread overview]
Message-ID: <20161227102807.20244-1-manu@bidouilliste.com> (raw)

The spi0 controller on the A20 have up to 4 CS (Chip Select) while the
others three only have 1.
Add the num-cs property to each node.
The current driver doesn't read this property but this is useful for
downstream user of DTS (FreeBSD for example).

Signed-off-by: Emmanuel Vadot <manu@bidouilliste.com>
---
Changes in v3:
  * Put number in bracket

Changes in v2:
  * Explain that driver doesn't support this but that it is useful
  for downstream users of DTS.

arch/arm/boot/dts/sun7i-a20.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 94cf5a1c7172..f67bea5d0710 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -871,6 +871,7 @@
 			status = "disabled";
 			#address-cells = <1>;
 			#size-cells = <0>;
+			num-cs = <4>;
 		};
 
 		spi1: spi@01c06000 {
@@ -885,6 +886,7 @@
 			status = "disabled";
 			#address-cells = <1>;
 			#size-cells = <0>;
+			num-cs = <1>;
 		};
 
 		emac: ethernet@01c0b000 {
@@ -1037,6 +1039,7 @@
 			status = "disabled";
 			#address-cells = <1>;
 			#size-cells = <0>;
+			num-cs = <1>;
 		};
 
 		ahci: sata@01c18000 {
@@ -1079,6 +1082,7 @@
 			status = "disabled";
 			#address-cells = <1>;
 			#size-cells = <0>;
+			num-cs = <1>;
 		};
 
 		pio: pinctrl@01c20800 {
-- 
2.11.0

             reply	other threads:[~2016-12-27 10:28 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-27 10:28 Emmanuel Vadot [this message]
2017-01-05 17:14 ` [PATCH v3] ARM: dts: sunxi: Add num-cs for A20 spi nodes Maxime Ripard

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