rk3229_wifi_bt_32k_from_cpu.diff

sdk_project@aaaaa:~/9.0sdk/RK3229_ANDROID9.0_BOX_SDK_V1.0_20190125/kernel$ git diff arch/arm/boot/dts/rk3229-evb.dts
diff --git a/arch/arm/boot/dts/rk3229-evb.dts b/arch/arm/boot/dts/rk3229-evb.dts
index fc4f19f..3251bfd 100644
--- a/arch/arm/boot/dts/rk3229-evb.dts
+++ b/arch/arm/boot/dts/rk3229-evb.dts
@@ -45,6 +45,7 @@
 #include "rk322x.dtsi"
 #include "rk3229-cpu-opp.dtsi"
 #include "rk322x-android.dtsi"
+#include <dt-bindings/clock/rk3228-cru.h>
 
 / {
        model = "Rockchip RK3229 Evaluation board";
@@ -226,6 +227,8 @@
        wireless-wlan {
                compatible = "wlan-platdata";
                rockchip,grf = <&grf>;
+				assigned-clocks = <&cru SCLK_HDMI_CEC>;
+				assigned-clock-rates = <32768>;
+        		clock-names = "ext_clock";
+        		clocks = <&cru SCLK_HDMI_CEC>;
+				assigned-clock-parents = <&cru PLL_CPLL>;
                wifi_chip_type = "ap6335";
                sdio_vref = <1800>;
                WIFI,host_wake_irq = <&gpio0 28 GPIO_ACTIVE_HIGH>;
 
 &pinctrl {
+
+        pinctrl-names = "default";
+        pinctrl-0 = <&clk_32k_out>;
+
+        clk_32k {
+                clk_32k_out: clk-32k-out {
+                        rockchip,pins =
+                                <1 8 RK_FUNC_2 &pcfg_pull_none>;
+                };
+        };
 	pmic {
 		pmic_int_l: pmic-int-l {
 		rockchip,pins =
diff --git a/include/linux/rfkill-wlan.h b/include/linux/rfkill-wlan.h
index f529cfd..618aeb0 100644
--- a/include/linux/rfkill-wlan.h
+++ b/include/linux/rfkill-wlan.h
@@ -5,6 +5,7 @@
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/clk.h>
 
 struct rksdmmc_iomux {
     char    *name;  //set the MACRO of gpio
@@ -42,6 +43,7 @@ struct rksdmmc_gpio_wifi_moudle {
     struct rksdmmc_gpio   ANTSEL3;  //pin6--ANTSEL3 
     struct rksdmmc_gpio   GPS_LAN;  //pin33--GPS_LAN
     struct regmap *grf;
+    struct clk              *ext_clk;
 };
 
 enum {
diff --git a/net/rfkill/rfkill-wlan.c b/net/rfkill/rfkill-wlan.c
index a4b6e5d..19e7117 100644
--- a/net/rfkill/rfkill-wlan.c
+++ b/net/rfkill/rfkill-wlan.c
@@ -653,6 +653,14 @@ static int wlan_platdata_parse_dt(struct device *dev,
 			data->wifi_int_b.enable = flags;
 			LOG("%s: get property: WIFI,host_wake_irq = %d, flags = %d.\n", __func__, gpio, flags);
         } else data->wifi_int_b.io = -1;
+        
+	data->ext_clk = devm_clk_get(dev, "ext_clock");
+        if (IS_ERR(data->ext_clk)) {
+                LOG("%s: clk_get wifi 32k failed!!!.\n", __func__);
+        } else {
+		 LOG("%s: clk_get wifi 32k sucess!!!.\n", __func__);
+                clk_prepare_enable(data->ext_clk);
+        }
 	}
 
     return 0;
@@ -826,6 +834,8 @@ static int rfkill_wlan_remove(struct platform_device *pdev)
     
     if (gpio_is_valid(rfkill->pdata->reset_n.io))
         gpio_free(rfkill->pdata->reset_n.io);
+
+	clk_disable_unprepare(rfkill->pdata->ext_clk);
     
 //    if (gpio_is_valid(rfkill->pdata->vddio.io))
 //        gpio_free(rfkill->pdata->vddio.io);