[PATCH] the mt7620a.dtsi makes reference to mt7620a-spi but this node does not exist in spi.c. The following patch address this.

[Luis Soltero]

here is the entry in the dts file...
               spi at b00 {
                        compatible = "ralink,mt7620a-spi", "ralink,rt2880-spi";
                        reg = <0xb00 0x100>;

                        resets = <&rstctrl 18>;
                        reset-names = "spi";

                        #address-cells = <1>;
                        #size-cells = <1>;

                        status = "disabled";

                        pinctrl-names = "default";
                        pinctrl-0 = <&spi_pins>;
                };

the following mus be added to the DTS file to use it.

              spi at b00 {
                        status = "okay";
                        num-cs = <2>;
                        m25p80 at 0 {
snip....
---
 .../0403-SPI-ralink-add-mt7620a-support.patch      |    9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 target/linux/ramips/patches-3.10/0403-SPI-ralink-add-mt7620a-support.patch

diff --git a/target/linux/ramips/patches-3.10/0403-SPI-ralink-add-mt7620a-support.patch b/target/linux/ramips/patches-3.10/0403-SPI-ralink-add-mt7620a-support.patch
new file mode 100644
index 0000000..4f8f61f
--- /dev/null
+++ b/target/linux/ramips/patches-3.10/0403-SPI-ralink-add-mt7620a-support.patch
@@ -0,0 +1,9 @@
+--- a/drivers/spi/spi-rt2880.c	2014-08-25 12:55:09.217949252 -0700
++++ b/drivers/spi/spi-rt2880.c	2014-08-31 09:21:02.000000000 -0700
+@@ -601,6 +601,7 @@
+ static const struct of_device_id rt2880_spi_match[] = {
+ 	{ .compatible = "ralink,rt2880-spi", .data = &spi_ops[0]},
+ 	{ .compatible = "ralink,rt5350-spi", .data = &spi_ops[1]},
++	{ .compatible = "ralink,rt7620a-spi", .data = &spi_ops[1]}, // chip select=2
+ 	{ .compatible = "ralink,mt7621-spi", .data = &spi_ops[2] },
+ 	{},
-- 
1.7.9.5


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