This can be used to have GPIO host wakeup method suitable for the
platform and configurable GAP for host sleep handshake.
Signed-off-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>
Signed-off-by: Cathy Luo <cluo@xxxxxxxxxxx>
Signed-off-by: Avinash Patil <patila@xxxxxxxxxxx>
---
Documentation/devicetree/bindings/btmrvl.txt | 7 +++++++
drivers/bluetooth/btmrvl_main.c | 12 +++++++++---
2 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/btmrvl.txt b/Documentation/devicetree/bindings/btmrvl.txt
index cdd5768..58f964b 100644
--- a/Documentation/devicetree/bindings/btmrvl.txt
+++ b/Documentation/devicetree/bindings/btmrvl.txt
@@ -10,8 +10,14 @@ Optional properties:
- btmrvl,cal-data : Calibration data downloaded to the device during
initialization. This is an array of 28 values(u8).
+ - btmrvl,gpio-gap : gpio and gap (in msecs) combination to be
+ configured.
+
Example:
+GPIO pin 13 is configured as a wakeup source and GAP is set to 100 msecs
+in below example.
+
btmrvl {
compatible = "btmrvl,cfgdata";
@@ -19,4 +25,5 @@ btmrvl {
0x37 0x01 0x1c 0x00 0xff 0xff 0xff 0xff 0x01 0x7f 0x04 0x02
0x00 0x00 0xba 0xce 0xc0 0xc6 0x2d 0x00 0x00 0x00 0x00 0x00
0x00 0x00 0xf0 0x00>;
+ btmrvl,gpio-gap = <0x0d64>;
};
diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c
index 2909bca..e43c495 100644
--- a/drivers/bluetooth/btmrvl_main.c
+++ b/drivers/bluetooth/btmrvl_main.c
@@ -492,13 +492,18 @@ static int btmrvl_download_cal_data(struct btmrvl_private *priv,
return 0;
}
-static int btmrvl_cal_data_dt(struct btmrvl_private *priv)
+static int btmrvl_check_device_tree(struct btmrvl_private *priv)
{
struct device_node *dt_node;
u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE];
int ret;
+ u32 val;
for_each_compatible_node(dt_node, NULL, "btmrvl,cfgdata") {
+ ret = of_property_read_u32(dt_node, "btmrvl,gpio-gap", &val);
+ if (!ret)
+ priv->btmrvl_dev.gpio_gap = val;
+
ret = of_property_read_u8_array(dt_node, "btmrvl,cal-data",
cal_data + BT_CAL_HDR_LEN,
BT_CAL_DATA_SIZE);
@@ -523,14 +528,15 @@ static int btmrvl_setup(struct hci_dev *hdev)
btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
- btmrvl_cal_data_dt(priv);
+ priv->btmrvl_dev.gpio_gap = 0xffff;
+
+ btmrvl_check_device_tree(priv);
btmrvl_pscan_window_reporting(priv, 0x01);
priv->btmrvl_dev.psmode = 1;
btmrvl_enable_ps(priv);
- priv->btmrvl_dev.gpio_gap = 0xffff;
btmrvl_send_hscfg_cmd(priv);
return 0;
--
1.8.1.4
--
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