Commit 025a60a7 authored by Amitkumar Karwar's avatar Amitkumar Karwar Committed by Marcel Holtmann

Bluetooth: btmrvl: add DT-bindings for gpio-gap

This can be used to have GPIO host wakeup method suitable for the
platform and configurable GAP for host sleep handshake.
Signed-off-by: default avatarAmitkumar Karwar <akarwar@marvell.com>
Signed-off-by: default avatarCathy Luo <cluo@marvell.com>
Signed-off-by: default avatarAvinash Patil <patila@marvell.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 098ea6bc
......@@ -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>;
};
......@@ -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;
......
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