ipq806x: add v4.9 support

[openwrt/staging/yousong.git] / target / linux / ipq806x / patches-4.9 / 0001-dtbindings-qcom_adm-Fix-channel-specifiers.patch

diff --git a/target/linux/ipq806x/patches-4.9/0001-dtbindings-qcom_adm-Fix-channel-specifiers.patch b/target/linux/ipq806x/patches-4.9/0001-dtbindings-qcom_adm-Fix-channel-specifiers.patch
new file mode 100644 (file)
index 0000000..fb629ae
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.9/0001-dtbindings-qcom_adm-Fix-channel-specifiers.patch
@@ -0,0 +1,71 @@
+From f275ae09b82aa423d2ea5a2be3ea315c8fcf6143 Mon Sep 17 00:00:00 2001
+From: Thomas Pedersen <twp@codeaurora.org>
+Date: Mon, 16 May 2016 17:58:50 -0700
+Subject: [PATCH 01/37] dtbindings: qcom_adm: Fix channel specifiers
+
+Original patch from Andy Gross.
+
+This patch removes the crci information from the dma
+channel property.  At least one client device requires
+using more than one CRCI value for a channel.  This does
+not match the current binding and the crci information
+needs to be removed.
+
+Instead, the client device will provide this information
+via other means.
+
+Signed-off-by: Andy Gross <agross@codeaurora.org>
+Signed-off-by: Thomas Pedersen <twp@codeaurora.org>
+---
+ Documentation/devicetree/bindings/dma/qcom_adm.txt |   16 ++++++----------
+ 1 file changed, 6 insertions(+), 10 deletions(-)
+
+--- a/Documentation/devicetree/bindings/dma/qcom_adm.txt
++++ b/Documentation/devicetree/bindings/dma/qcom_adm.txt
+@@ -4,8 +4,7 @@ Required properties:
+ - compatible: must contain "qcom,adm" for IPQ/APQ8064 and MSM8960
+ - reg: Address range for DMA registers
+ - interrupts: Should contain one interrupt shared by all channels
+-- #dma-cells: must be <2>.  First cell denotes the channel number.  Second cell
+-  denotes CRCI (client rate control interface) flow control assignment.
++- #dma-cells: must be <1>.  First cell denotes the channel number.
+ - clocks: Should contain the core clock and interface clock.
+ - clock-names: Must contain "core" for the core clock and "iface" for the
+   interface clock.
+@@ -22,7 +21,7 @@ Example:
+                       compatible = "qcom,adm";
+                       reg = <0x18300000 0x100000>;
+                       interrupts = <0 170 0>;
+-                      #dma-cells = <2>;
++                      #dma-cells = <1>;
+ 
+                       clocks = <&gcc ADM0_CLK>, <&gcc ADM0_PBUS_CLK>;
+                       clock-names = "core", "iface";
+@@ -35,15 +34,12 @@ Example:
+                       qcom,ee = <0>;
+               };
+ 
+-DMA clients must use the format descripted in the dma.txt file, using a three
++DMA clients must use the format descripted in the dma.txt file, using a two
+ cell specifier for each channel.
+ 
+-Each dmas request consists of 3 cells:
++Each dmas request consists of two cells:
+  1. phandle pointing to the DMA controller
+  2. channel number
+- 3. CRCI assignment, if applicable.  If no CRCI flow control is required, use 0.
+-    The CRCI is used for flow control.  It identifies the peripheral device that
+-    is the source/destination for the transferred data.
+ 
+ Example:
+ 
+@@ -56,7 +52,7 @@ Example:
+ 
+               cs-gpios = <&qcom_pinmux 20 0>;
+ 
+-              dmas = <&adm_dma 6 9>,
+-                      <&adm_dma 5 10>;
++              dmas = <&adm_dma 6>,
++                      <&adm_dma 5>;
+               dma-names = "rx", "tx";
+       };