bluetooth: rfkill-bt: enalbe 32K for ap6356

Change-Id: I71a14f38ab1d46bbf3bfc991140a20d8c6a27eec
Signed-off-by: Xu Xuehui <xxh@rock-chips.com>

diff --git a/include/linux/rfkill-bt.h b/include/linux/rfkill-bt.h
index 4a014b64a92c9a3a2bdbd4a320d2967eeb721c1a..c4174b15658004f2398f9d3f62f40d72a8cd4ae4 100755 (executable)
--- a/include/linux/rfkill-bt.h
+++ b/include/linux/rfkill-bt.h
@@ -22,6 +22,7 @@
 
 #include <linux/types.h>
 #include <linux/rfkill.h>
+#include <linux/clk.h>
 
 #define RFKILL_RK_GPIO_NAME_SIZE   64
 
@@ -63,6 +64,7 @@ struct rfkill_rk_platform_data {
     struct rfkill_rk_gpio   wake_gpio;      // Host wake or sleep BT
     struct rfkill_rk_irq    wake_host_irq;  // BT wakeup host
     struct rfkill_rk_gpio   rts_gpio;
+    struct clk              *ext_clk;
 };
 
 int rfkill_get_bt_power_state(int *power, bool *toggle);

diff --git a/net/rfkill/rfkill-bt.c b/net/rfkill/rfkill-bt.c
index 11e182882365f342c880bb8e2ee5e5c407f6ea3f..332eb47b09868128631c96b11ea5ed2fb442b398 100644 (file)
--- a/net/rfkill/rfkill-bt.c
+++ b/net/rfkill/rfkill-bt.c
@@ -522,7 +522,13 @@ static int bluetooth_platdata_parse_dt(struct device *dev,
         LOG("%s: get property: BT,wake_host_irq = %d.\n", __func__, gpio);
     } else data->wake_host_irq.gpio.io = -1;
 
-    return 0;
+       data->ext_clk = devm_clk_get(dev, "ext_clock");
+       if (IS_ERR(data->ext_clk)) {
+               LOG("%s: clk_get failed!!!.\n", __func__);
+       } else {
+               clk_prepare_enable(data->ext_clk);
+       }
+       return 0;
 }
 #endif //CONFIG_OF
 
@@ -696,7 +702,7 @@ static int rfkill_rk_remove(struct platform_device *pdev)
     
     if (gpio_is_valid(rfkill->pdata->poweron_gpio.io))
         gpio_free(rfkill->pdata->poweron_gpio.io);
-
+       clk_disable_unprepare(rfkill->pdata->ext_clk);
     g_rfkill = NULL;
 
        return 0;