[meta-freescale] [3rdparty][PATCH 1/2] linux-variscite: Enable support to wl12xx TI wifi module

[Fabio Berton]

Configure device tree to load correctly wl12xx based hardware.

Signed-off-by: Fabio Berton <fabio.berton at ossystems.com.br>
---
 .../imx6qdl-var-som-Enable-wl12xx.patch            | 84 ++++++++++++++++++++++
 recipes-kernel/linux/linux-variscite_4.1.15.bb     |  1 +
 2 files changed, 85 insertions(+)
 create mode 100644 recipes-kernel/linux/linux-variscite-4.1.15/imx6qdl-var-som-Enable-wl12xx.patch

diff --git a/recipes-kernel/linux/linux-variscite-4.1.15/imx6qdl-var-som-Enable-wl12xx.patch b/recipes-kernel/linux/linux-variscite-4.1.15/imx6qdl-var-som-Enable-wl12xx.patch
new file mode 100644
index 0000000..8accc75
--- /dev/null
+++ b/recipes-kernel/linux/linux-variscite-4.1.15/imx6qdl-var-som-Enable-wl12xx.patch
@@ -0,0 +1,84 @@
+From 14642037c45996b5288bfec2ce9202f99fa79968 Mon Sep 17 00:00:00 2001
+From: Fabio Berton <fabio.berton at ossystems.com.br>
+Date: Mon, 26 Sep 2016 10:54:05 -0300
+Subject: [PATCH] imx6qdl-var-som: Enable wl12xx
+Organization: O.S. Systems Software LTDA.
+
+Upstream-Status: Pending
+
+Signed-off-by: Fabio Berton <fabio.berton at ossystems.com.br>
+---
+ arch/arm/boot/dts/imx6qdl-var-som.dtsi | 51 +++++++++++++++-------------------
+ 1 file changed, 22 insertions(+), 29 deletions(-)
+
+diff --git a/arch/arm/boot/dts/imx6qdl-var-som.dtsi b/arch/arm/boot/dts/imx6qdl-var-som.dtsi
+index 89e1e3f..66855fe 100644
+--- a/arch/arm/boot/dts/imx6qdl-var-som.dtsi
++++ b/arch/arm/boot/dts/imx6qdl-var-som.dtsi
+@@ -574,6 +574,7 @@
+ 				MX6QDL_PAD_SD3_DAT1__SD3_DATA1 		0x17069
+ 				MX6QDL_PAD_SD3_DAT2__SD3_DATA2 		0x17069
+ 				MX6QDL_PAD_SD3_DAT3__SD3_DATA3 		0x17069
++#define GPIRQ_WL1271	<&gpio6 17 IRQ_TYPE_LEVEL_HIGH>
+                                 MX6QDL_PAD_SD3_DAT7__GPIO6_IO17 	0x13059   /* Reserve two pins from sd1 for wl8 gpio, this is pulled low at reset for WL_EN */
+                                 MX6QDL_PAD_SD3_RST__GPIO7_IO08  	0x13059   /* this is for wl_irq which driver will configure as an input with a pull down */
+ 			>;
+@@ -815,34 +816,26 @@
+ 	status = "okay";
+ };
+ 
+-&usdhc3 {	/* uSDHC3, TiWi wl1271 7 Wilink8 WL18xx*/
+-	pinctrl-names = "default", "state_100mhz", "state_200mhz";
+-	pinctrl-0 = <&pinctrl_usdhc3_2>;
+-	pinctrl-1 = <&pinctrl_usdhc3_2_100mhz>;
+-	pinctrl-2 = <&pinctrl_usdhc3_2_200mhz>;
+-	keep-power-in-suspend;
+-	enable-sdio-wakeup;
+-	vmmc-supply = <&wlan_en_reg>;
+-	bus-width = <4>;
+-	non-removable;
+-	cap-power-off-card;
+-	status = "okay";
+-	#address-cells = <1>;
+-	#size-cells = <0>;
+-	wlcore: wlcore at 0 {
+-		compatible = "ti,wl1835";
+-		reg = <2>;
+-#if 0
+-		gpio = <177>;   /* The wl8 driver expects gpio to be an integer, so gpio6_17 is (6-1)*32+17=207
+-				   irq property must not be set as driver derives irq number from gpio if no irq set
+-				   use edge irqs for suspend/resume */
+-		platform-quirks = <1>;
+-#endif
+-		interrupt-parent = <&gpio6>;
+-		interrupts = <17 IRQ_TYPE_EDGE_RISING>;
+-
+-		/* if a 12xx card is there, configure the clock to WL12XX_REFCLOCK_38_XTAL */
+-		board-ref-clock = <4>;
+-	};
++&usdhc3 {	/* uSDHC3, TiWi wl1271 */
++    pinctrl-names = "default", "state_100mhz", "state_200mhz";
++    pinctrl-0 = <&pinctrl_usdhc3_2>;
++    pinctrl-1 = <&pinctrl_usdhc3_2_100mhz>;
++    pinctrl-2 = <&pinctrl_usdhc3_2_200mhz>;
++    bus-width = <4>;
++    non-removable;
++    vmmc-supply = <&wlan_en_reg>;
++    vqmmc-1-8-v;
++    cap-power-off-card;
++    keep-power-in-suspend;
++    status = "okay";
+ 
++    #address-cells = <1>;
++    #size-cells = <0>;
++    wlcore: wlcore at 2 {
++        compatible = "ti,wl1271";
++        interrupts-extended = GPIRQ_WL1271;
++        reg = <2>;
++        ref-clock-frequency = <38400000>;
++    };
+ };
++
+-- 
+2.1.4
+
diff --git a/recipes-kernel/linux/linux-variscite_4.1.15.bb b/recipes-kernel/linux/linux-variscite_4.1.15.bb
index a9a365f..4e37a57 100644
--- a/recipes-kernel/linux/linux-variscite_4.1.15.bb
+++ b/recipes-kernel/linux/linux-variscite_4.1.15.bb
@@ -14,6 +14,7 @@ SRC_URI = " \
     git://github.com/varigit/linux-2.6-imx.git;protocol=git;branch=${SRCBRANCH} \
     file://Fix-the-compile-issue-under-gcc6.patch \
     file://0001-mxc_hdmi-mxc_hdmi-allow-EDID-to-select-non-CEA-modes.patch \
+    file://imx6qdl-var-som-Enable-wl12xx.patch \
     file://defconfig \
 "
 
-- 
2.1.4