From 098ea6bc4cb5890d09b1b79154fa11182e0f71e0 Mon Sep 17 00:00:00 2001 From: Amitkumar Karwar Date: Wed, 19 Nov 2014 01:28:32 -0800 Subject: Bluetooth: btmrvl: add DT bindings documentation Calibration data can be downloaded through device tree method. This patch adds the documentation. Also, instead of searching device tree node by name using of_find_node_by_name() API, let's use for_each_compatible_node(). Signed-off-by: Amitkumar Karwar Signed-off-by: Cathy Luo Signed-off-by: Avinash Patil Signed-off-by: Marcel Holtmann --- drivers/bluetooth/btmrvl_main.c | 31 ++++++++++++++----------------- 1 file changed, 14 insertions(+), 17 deletions(-) (limited to 'drivers/bluetooth') diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c index 1d7db2064889..2909bca6b8b6 100644 --- a/drivers/bluetooth/btmrvl_main.c +++ b/drivers/bluetooth/btmrvl_main.c @@ -496,25 +496,22 @@ static int btmrvl_cal_data_dt(struct btmrvl_private *priv) { struct device_node *dt_node; u8 cal_data[BT_CAL_HDR_LEN + BT_CAL_DATA_SIZE]; - const char name[] = "btmrvl_caldata"; - const char property[] = "btmrvl,caldata"; int ret; - dt_node = of_find_node_by_name(NULL, name); - if (!dt_node) - return -ENODEV; - - ret = of_property_read_u8_array(dt_node, property, - cal_data + BT_CAL_HDR_LEN, - BT_CAL_DATA_SIZE); - if (ret) - return ret; - - BT_DBG("Use cal data from device tree"); - ret = btmrvl_download_cal_data(priv, cal_data, BT_CAL_DATA_SIZE); - if (ret) { - BT_ERR("Fail to download calibrate data"); - return ret; + for_each_compatible_node(dt_node, NULL, "btmrvl,cfgdata") { + ret = of_property_read_u8_array(dt_node, "btmrvl,cal-data", + cal_data + BT_CAL_HDR_LEN, + BT_CAL_DATA_SIZE); + if (ret) + return ret; + + BT_DBG("Use cal data from device tree"); + ret = btmrvl_download_cal_data(priv, cal_data, + BT_CAL_DATA_SIZE); + if (ret) { + BT_ERR("Fail to download calibrate data"); + return ret; + } } return 0; -- cgit v1.2.3