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authorAmitkumar Karwar <akarwar@marvell.com>2014-11-19 12:28:32 +0300
committerMarcel Holtmann <marcel@holtmann.org>2014-11-19 18:22:41 +0300
commit098ea6bc4cb5890d09b1b79154fa11182e0f71e0 (patch)
tree0d66eef2ccb830153e2a645e9a8de5ad84519f3e /drivers/bluetooth/btmrvl_main.c
parent0378b59770130a994272b176a2a4346dc27361e9 (diff)
downloadlinux-098ea6bc4cb5890d09b1b79154fa11182e0f71e0.tar.xz
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 <akarwar@marvell.com> Signed-off-by: Cathy Luo <cluo@marvell.com> Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth/btmrvl_main.c')
-rw-r--r--drivers/bluetooth/btmrvl_main.c31
1 files changed, 14 insertions, 17 deletions
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;