kernel: mac80211: backport ath9k device tree support patches

These patches add support for configuring ath9k based devices via
devicetree. This was tested on PCI(e) based devices. This should work
for AHB based devices as well (adding more AHB specific properties may
still be needed) as soon as the ath79 platform is ready to populate the
ath9k wmac via devicetree.
This patchset was accepted upstream, more information can be found on
the linux-wireless list:
https://www.spinics.net/lists/linux-wireless/msg155474.html

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

1 files changed, 67 insertions, 0 deletions

diff --git a/package/kernel/mac80211/patches/326-Documentation-dt-net-add-ath9k-wireless-device-bindi.patch b/package/kernel/mac80211/patches/326-Documentation-dt-net-add-ath9k-wireless-device-bindi.patch
new file mode 100644
index 0000000..72a459c
--- /dev/null
+++ b/package/kernel/mac80211/patches/326-Documentation-dt-net-add-ath9k-wireless-device-bindi.patch
@@ -0,0 +1,67 @@
+From b263e0bb9d4585ca3ec04d7257ca5308d21333bb Mon Sep 17 00:00:00 2001
+From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+Date: Sun, 16 Oct 2016 22:59:05 +0200
+Subject: [PATCH 1/3] Documentation: dt: net: add ath9k wireless device binding
+
+Add documentation how devicetree can be used to configure ath9k based
+devices.
+
+Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+Acked-by: Rob Herring <robh@kernel.org>
+Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
+---
+ .../devicetree/bindings/net/wireless/qca,ath9k.txt | 48 ++++++++++++++++++++++
+ 1 file changed, 48 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/net/wireless/qca,ath9k.txt
+@@ -0,0 +1,48 @@
++* Qualcomm Atheros ath9k wireless devices
++
++This node provides properties for configuring the ath9k wireless device. The
++node is expected to be specified as a child node of the PCI controller to
++which the wireless chip is connected.
++
++Required properties:
++- compatible: For PCI and PCIe devices this should be an identifier following
++		the format as defined in "PCI Bus Binding to Open Firmware"
++		Revision 2.1. One of the possible formats is "pciVVVV,DDDD"
++		where VVVV is the PCI vendor ID and DDDD is PCI device ID.
++		Typically QCA's PCI vendor ID 168c is used while the PCI device
++		ID depends on the chipset - see the following (possibly
++		incomplete) list:
++			- 0023 for AR5416
++			- 0024 for AR5418
++			- 0027 for AR9160
++			- 0029 for AR9220 and AR9223
++			- 002a for AR9280 and AR9283
++			- 002b for AR9285
++			- 002c for AR2427
++			- 002d for AR9227
++			- 002e for AR9287
++			- 0030 for AR9380, AR9381 and AR9382
++			- 0032 for AR9485
++			- 0033 for AR9580 and AR9590
++			- 0034 for AR9462
++			- 0036 for AR9565
++			- 0037 for AR9485
++- reg: Address and length of the register set for the device.
++
++Optional properties:
++- qca,no-eeprom: Indicates that there is no physical EEPROM connected to the
++			ath9k wireless chip (in this case the calibration /
++			EEPROM data will be loaded from userspace using the
++			kernel firmware loader).
++- mac-address: See ethernet.txt in the parent directory
++- local-mac-address: See ethernet.txt in the parent directory
++
++
++In this example, the node is defined as child node of the PCI controller:
++&pci0 {
++	wifi@168c,002d {
++		compatible = "pci168c,002d";
++		reg = <0x7000 0 0 0 0x1000>;
++		qca,no-eeprom;
++	};
++};