Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/bluetooth/btmtkuart.c b/drivers/bluetooth/btmtkuart.c
index 4593baf..e11169a 100644
--- a/drivers/bluetooth/btmtkuart.c
+++ b/drivers/bluetooth/btmtkuart.c
@@ -12,10 +12,15 @@
#include <linux/atomic.h>
#include <linux/clk.h>
#include <linux/firmware.h>
+#include <linux/gpio/consumer.h>
+#include <linux/iopoll.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/consumer.h>
#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
#include <linux/serdev.h>
#include <linux/skbuff.h>
@@ -24,20 +29,38 @@
#include "h4_recv.h"
-#define VERSION "0.1"
+#define VERSION "0.2"
#define FIRMWARE_MT7622 "mediatek/mt7622pr2h.bin"
+#define FIRMWARE_MT7663 "mediatek/mt7663pr2h.bin"
+#define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin"
#define MTK_STP_TLR_SIZE 2
#define BTMTKUART_TX_STATE_ACTIVE 1
#define BTMTKUART_TX_STATE_WAKEUP 2
#define BTMTKUART_TX_WAIT_VND_EVT 3
+#define BTMTKUART_REQUIRED_WAKEUP 4
+
+#define BTMTKUART_FLAG_STANDALONE_HW BIT(0)
enum {
MTK_WMT_PATCH_DWNLD = 0x1,
+ MTK_WMT_TEST = 0x2,
+ MTK_WMT_WAKEUP = 0x3,
+ MTK_WMT_HIF = 0x4,
MTK_WMT_FUNC_CTRL = 0x6,
- MTK_WMT_RST = 0x7
+ MTK_WMT_RST = 0x7,
+ MTK_WMT_SEMAPHORE = 0x17,
+};
+
+enum {
+ BTMTK_WMT_INVALID,
+ BTMTK_WMT_PATCH_UNDONE,
+ BTMTK_WMT_PATCH_DONE,
+ BTMTK_WMT_ON_UNDONE,
+ BTMTK_WMT_ON_DONE,
+ BTMTK_WMT_ON_PROGRESS,
};
struct mtk_stp_hdr {
@@ -46,6 +69,11 @@
u8 cs;
} __packed;
+struct btmtkuart_data {
+ unsigned int flags;
+ const char *fwname;
+};
+
struct mtk_wmt_hdr {
u8 dir;
u8 op;
@@ -58,41 +86,87 @@
u8 data[256];
} __packed;
+struct btmtk_hci_wmt_evt {
+ struct hci_event_hdr hhdr;
+ struct mtk_wmt_hdr whdr;
+} __packed;
+
+struct btmtk_hci_wmt_evt_funcc {
+ struct btmtk_hci_wmt_evt hwhdr;
+ __be16 status;
+} __packed;
+
+struct btmtk_tci_sleep {
+ u8 mode;
+ __le16 duration;
+ __le16 host_duration;
+ u8 host_wakeup_pin;
+ u8 time_compensation;
+} __packed;
+
+struct btmtk_hci_wmt_params {
+ u8 op;
+ u8 flag;
+ u16 dlen;
+ const void *data;
+ u32 *status;
+};
+
struct btmtkuart_dev {
struct hci_dev *hdev;
struct serdev_device *serdev;
+
struct clk *clk;
+ struct clk *osc;
+ struct regulator *vcc;
+ struct gpio_desc *reset;
+ struct gpio_desc *boot;
+ struct pinctrl *pinctrl;
+ struct pinctrl_state *pins_runtime;
+ struct pinctrl_state *pins_boot;
+ speed_t desired_speed;
+ speed_t curr_speed;
struct work_struct tx_work;
unsigned long tx_state;
struct sk_buff_head txq;
struct sk_buff *rx_skb;
+ struct sk_buff *evt_skb;
u8 stp_pad[6];
u8 stp_cursor;
u16 stp_dlen;
+
+ const struct btmtkuart_data *data;
};
-static int mtk_hci_wmt_sync(struct hci_dev *hdev, u8 op, u8 flag, u16 plen,
- const void *param)
+#define btmtkuart_is_standalone(bdev) \
+ ((bdev)->data->flags & BTMTKUART_FLAG_STANDALONE_HW)
+#define btmtkuart_is_builtin_soc(bdev) \
+ !((bdev)->data->flags & BTMTKUART_FLAG_STANDALONE_HW)
+
+static int mtk_hci_wmt_sync(struct hci_dev *hdev,
+ struct btmtk_hci_wmt_params *wmt_params)
{
struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
+ struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
+ u32 hlen, status = BTMTK_WMT_INVALID;
+ struct btmtk_hci_wmt_evt *wmt_evt;
struct mtk_hci_wmt_cmd wc;
struct mtk_wmt_hdr *hdr;
- u32 hlen;
int err;
- hlen = sizeof(*hdr) + plen;
+ hlen = sizeof(*hdr) + wmt_params->dlen;
if (hlen > 255)
return -EINVAL;
hdr = (struct mtk_wmt_hdr *)&wc;
hdr->dir = 1;
- hdr->op = op;
- hdr->dlen = cpu_to_le16(plen + 1);
- hdr->flag = flag;
- memcpy(wc.data, param, plen);
+ hdr->op = wmt_params->op;
+ hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
+ hdr->flag = wmt_params->flag;
+ memcpy(wc.data, wmt_params->data, wmt_params->dlen);
set_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
@@ -107,7 +181,7 @@
* Complete as with usual HCI command flow control.
*
* After sending the command, wait for BTMTKUART_TX_WAIT_VND_EVT
- * state to be cleared. The driver speicfic event receive routine
+ * state to be cleared. The driver specific event receive routine
* will clear that state and with that indicate completion of the
* WMT command.
*/
@@ -115,26 +189,63 @@
TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
if (err == -EINTR) {
bt_dev_err(hdev, "Execution of wmt command interrupted");
+ clear_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
return err;
}
if (err) {
bt_dev_err(hdev, "Execution of wmt command timed out");
+ clear_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state);
return -ETIMEDOUT;
}
- return 0;
+ /* Parse and handle the return WMT event */
+ wmt_evt = (struct btmtk_hci_wmt_evt *)bdev->evt_skb->data;
+ if (wmt_evt->whdr.op != hdr->op) {
+ bt_dev_err(hdev, "Wrong op received %d expected %d",
+ wmt_evt->whdr.op, hdr->op);
+ err = -EIO;
+ goto err_free_skb;
+ }
+
+ switch (wmt_evt->whdr.op) {
+ case MTK_WMT_SEMAPHORE:
+ if (wmt_evt->whdr.flag == 2)
+ status = BTMTK_WMT_PATCH_UNDONE;
+ else
+ status = BTMTK_WMT_PATCH_DONE;
+ break;
+ case MTK_WMT_FUNC_CTRL:
+ wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
+ if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
+ status = BTMTK_WMT_ON_DONE;
+ else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
+ status = BTMTK_WMT_ON_PROGRESS;
+ else
+ status = BTMTK_WMT_ON_UNDONE;
+ break;
+ }
+
+ if (wmt_params->status)
+ *wmt_params->status = status;
+
+err_free_skb:
+ kfree_skb(bdev->evt_skb);
+ bdev->evt_skb = NULL;
+
+ return err;
}
-static int mtk_setup_fw(struct hci_dev *hdev)
+static int mtk_setup_firmware(struct hci_dev *hdev, const char *fwname)
{
+ struct btmtk_hci_wmt_params wmt_params;
const struct firmware *fw;
const u8 *fw_ptr;
size_t fw_size;
int err, dlen;
u8 flag;
- err = request_firmware(&fw, FIRMWARE_MT7622, &hdev->dev);
+ err = request_firmware(&fw, fwname, &hdev->dev);
if (err < 0) {
bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
return err;
@@ -153,6 +264,9 @@
fw_ptr += 30;
flag = 1;
+ wmt_params.op = MTK_WMT_PATCH_DWNLD;
+ wmt_params.status = NULL;
+
while (fw_size > 0) {
dlen = min_t(int, 250, fw_size);
@@ -162,18 +276,37 @@
else if (fw_size < fw->size - 30)
flag = 2;
- err = mtk_hci_wmt_sync(hdev, MTK_WMT_PATCH_DWNLD, flag, dlen,
- fw_ptr);
+ wmt_params.flag = flag;
+ wmt_params.dlen = dlen;
+ wmt_params.data = fw_ptr;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
err);
- break;
+ goto free_fw;
}
fw_size -= dlen;
fw_ptr += dlen;
}
+ wmt_params.op = MTK_WMT_RST;
+ wmt_params.flag = 4;
+ wmt_params.dlen = 0;
+ wmt_params.data = NULL;
+ wmt_params.status = NULL;
+
+ /* Activate funciton the firmware providing to */
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
+ goto free_fw;
+ }
+
+ /* Wait a few moments for firmware activation done */
+ usleep_range(10000, 12000);
+
free_fw:
release_firmware(fw);
return err;
@@ -192,7 +325,20 @@
if (hdr->evt == 0xe4)
hdr->evt = HCI_EV_VENDOR;
+ /* When someone waits for the WMT event, the skb is being cloned
+ * and being processed the events from there then.
+ */
+ if (test_bit(BTMTKUART_TX_WAIT_VND_EVT, &bdev->tx_state)) {
+ bdev->evt_skb = skb_clone(skb, GFP_KERNEL);
+ if (!bdev->evt_skb) {
+ err = -ENOMEM;
+ goto err_out;
+ }
+ }
+
err = hci_recv_frame(hdev, skb);
+ if (err < 0)
+ goto err_free_skb;
if (hdr->evt == HCI_EV_VENDOR) {
if (test_and_clear_bit(BTMTKUART_TX_WAIT_VND_EVT,
@@ -203,6 +349,13 @@
}
}
+ return 0;
+
+err_free_skb:
+ kfree_skb(bdev->evt_skb);
+ bdev->evt_skb = NULL;
+
+err_out:
return err;
}
@@ -404,6 +557,23 @@
goto err_open;
}
+ if (btmtkuart_is_standalone(bdev)) {
+ if (bdev->curr_speed != bdev->desired_speed)
+ err = serdev_device_set_baudrate(bdev->serdev,
+ 115200);
+ else
+ err = serdev_device_set_baudrate(bdev->serdev,
+ bdev->desired_speed);
+
+ if (err < 0) {
+ bt_dev_err(hdev, "Unable to set baudrate UART device %s",
+ dev_name(&bdev->serdev->dev));
+ goto err_serdev_close;
+ }
+
+ serdev_device_set_flow_control(bdev->serdev, false);
+ }
+
bdev->stp_cursor = 2;
bdev->stp_dlen = 0;
@@ -427,6 +597,8 @@
pm_runtime_put_sync(dev);
err_disable_rpm:
pm_runtime_disable(dev);
+err_serdev_close:
+ serdev_device_close(bdev->serdev);
err_open:
return err;
}
@@ -465,42 +637,222 @@
return 0;
}
-static int btmtkuart_setup(struct hci_dev *hdev)
+static int btmtkuart_func_query(struct hci_dev *hdev)
{
- u8 param = 0x1;
- int err = 0;
+ struct btmtk_hci_wmt_params wmt_params;
+ int status, err;
+ u8 param = 0;
- /* Setup a firmware which the device definitely requires */
- err = mtk_setup_fw(hdev);
- if (err < 0)
- return err;
+ /* Query whether the function is enabled */
+ wmt_params.op = MTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 4;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = ¶m;
+ wmt_params.status = &status;
- /* Activate function the firmware providing to */
- err = mtk_hci_wmt_sync(hdev, MTK_WMT_RST, 0x4, 0, 0);
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
- bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
+ bt_dev_err(hdev, "Failed to query function status (%d)", err);
return err;
}
+ return status;
+}
+
+static int btmtkuart_change_baudrate(struct hci_dev *hdev)
+{
+ struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
+ struct btmtk_hci_wmt_params wmt_params;
+ __le32 baudrate;
+ u8 param;
+ int err;
+
+ /* Indicate the device to enter the probe state the host is
+ * ready to change a new baudrate.
+ */
+ baudrate = cpu_to_le32(bdev->desired_speed);
+ wmt_params.op = MTK_WMT_HIF;
+ wmt_params.flag = 1;
+ wmt_params.dlen = 4;
+ wmt_params.data = &baudrate;
+ wmt_params.status = NULL;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to device baudrate (%d)", err);
+ return err;
+ }
+
+ err = serdev_device_set_baudrate(bdev->serdev,
+ bdev->desired_speed);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to set up host baudrate (%d)",
+ err);
+ return err;
+ }
+
+ serdev_device_set_flow_control(bdev->serdev, false);
+
+ /* Send a dummy byte 0xff to activate the new baudrate */
+ param = 0xff;
+ err = serdev_device_write(bdev->serdev, ¶m, sizeof(param),
+ MAX_SCHEDULE_TIMEOUT);
+ if (err < 0 || err < sizeof(param))
+ return err;
+
+ serdev_device_wait_until_sent(bdev->serdev, 0);
+
+ /* Wait some time for the device changing baudrate done */
+ usleep_range(20000, 22000);
+
+ /* Test the new baudrate */
+ wmt_params.op = MTK_WMT_TEST;
+ wmt_params.flag = 7;
+ wmt_params.dlen = 0;
+ wmt_params.data = NULL;
+ wmt_params.status = NULL;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to test new baudrate (%d)",
+ err);
+ return err;
+ }
+
+ bdev->curr_speed = bdev->desired_speed;
+
+ return 0;
+}
+
+static int btmtkuart_setup(struct hci_dev *hdev)
+{
+ struct btmtkuart_dev *bdev = hci_get_drvdata(hdev);
+ struct btmtk_hci_wmt_params wmt_params;
+ ktime_t calltime, delta, rettime;
+ struct btmtk_tci_sleep tci_sleep;
+ unsigned long long duration;
+ struct sk_buff *skb;
+ int err, status;
+ u8 param = 0x1;
+
+ calltime = ktime_get();
+
+ /* Wakeup MCUSYS is required for certain devices before we start to
+ * do any setups.
+ */
+ if (test_bit(BTMTKUART_REQUIRED_WAKEUP, &bdev->tx_state)) {
+ wmt_params.op = MTK_WMT_WAKEUP;
+ wmt_params.flag = 3;
+ wmt_params.dlen = 0;
+ wmt_params.data = NULL;
+ wmt_params.status = NULL;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to wakeup the chip (%d)", err);
+ return err;
+ }
+
+ clear_bit(BTMTKUART_REQUIRED_WAKEUP, &bdev->tx_state);
+ }
+
+ if (btmtkuart_is_standalone(bdev))
+ btmtkuart_change_baudrate(hdev);
+
+ /* Query whether the firmware is already download */
+ wmt_params.op = MTK_WMT_SEMAPHORE;
+ wmt_params.flag = 1;
+ wmt_params.dlen = 0;
+ wmt_params.data = NULL;
+ wmt_params.status = &status;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
+ if (err < 0) {
+ bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
+ return err;
+ }
+
+ if (status == BTMTK_WMT_PATCH_DONE) {
+ bt_dev_info(hdev, "Firmware already downloaded");
+ goto ignore_setup_fw;
+ }
+
+ /* Setup a firmware which the device definitely requires */
+ err = mtk_setup_firmware(hdev, bdev->data->fwname);
+ if (err < 0)
+ return err;
+
+ignore_setup_fw:
+ /* Query whether the device is already enabled */
+ err = readx_poll_timeout(btmtkuart_func_query, hdev, status,
+ status < 0 || status != BTMTK_WMT_ON_PROGRESS,
+ 2000, 5000000);
+ /* -ETIMEDOUT happens */
+ if (err < 0)
+ return err;
+
+ /* The other errors happen in btusb_mtk_func_query */
+ if (status < 0)
+ return status;
+
+ if (status == BTMTK_WMT_ON_DONE) {
+ bt_dev_info(hdev, "function already on");
+ goto ignore_func_on;
+ }
+
/* Enable Bluetooth protocol */
- err = mtk_hci_wmt_sync(hdev, MTK_WMT_FUNC_CTRL, 0x0, sizeof(param),
- ¶m);
+ wmt_params.op = MTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 0;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = ¶m;
+ wmt_params.status = NULL;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
return err;
}
+ignore_func_on:
+ /* Apply the low power environment setup */
+ tci_sleep.mode = 0x5;
+ tci_sleep.duration = cpu_to_le16(0x640);
+ tci_sleep.host_duration = cpu_to_le16(0x640);
+ tci_sleep.host_wakeup_pin = 0;
+ tci_sleep.time_compensation = 0;
+
+ skb = __hci_cmd_sync(hdev, 0xfc7a, sizeof(tci_sleep), &tci_sleep,
+ HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "Failed to apply low power setting (%d)", err);
+ return err;
+ }
+ kfree_skb(skb);
+
+ rettime = ktime_get();
+ delta = ktime_sub(rettime, calltime);
+ duration = (unsigned long long)ktime_to_ns(delta) >> 10;
+
+ bt_dev_info(hdev, "Device setup in %llu usecs", duration);
+
return 0;
}
static int btmtkuart_shutdown(struct hci_dev *hdev)
{
+ struct btmtk_hci_wmt_params wmt_params;
u8 param = 0x0;
int err;
/* Disable the device */
- err = mtk_hci_wmt_sync(hdev, MTK_WMT_FUNC_CTRL, 0x0, sizeof(param),
- ¶m);
+ wmt_params.op = MTK_WMT_FUNC_CTRL;
+ wmt_params.flag = 0;
+ wmt_params.dlen = sizeof(param);
+ wmt_params.data = ¶m;
+ wmt_params.status = NULL;
+
+ err = mtk_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
return err;
@@ -543,24 +895,97 @@
return 0;
}
+static int btmtkuart_parse_dt(struct serdev_device *serdev)
+{
+ struct btmtkuart_dev *bdev = serdev_device_get_drvdata(serdev);
+ struct device_node *node = serdev->dev.of_node;
+ u32 speed = 921600;
+ int err;
+
+ if (btmtkuart_is_standalone(bdev)) {
+ of_property_read_u32(node, "current-speed", &speed);
+
+ bdev->desired_speed = speed;
+
+ bdev->vcc = devm_regulator_get(&serdev->dev, "vcc");
+ if (IS_ERR(bdev->vcc)) {
+ err = PTR_ERR(bdev->vcc);
+ return err;
+ }
+
+ bdev->osc = devm_clk_get_optional(&serdev->dev, "osc");
+ if (IS_ERR(bdev->osc)) {
+ err = PTR_ERR(bdev->osc);
+ return err;
+ }
+
+ bdev->boot = devm_gpiod_get_optional(&serdev->dev, "boot",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(bdev->boot)) {
+ err = PTR_ERR(bdev->boot);
+ return err;
+ }
+
+ bdev->pinctrl = devm_pinctrl_get(&serdev->dev);
+ if (IS_ERR(bdev->pinctrl)) {
+ err = PTR_ERR(bdev->pinctrl);
+ return err;
+ }
+
+ bdev->pins_boot = pinctrl_lookup_state(bdev->pinctrl,
+ "default");
+ if (IS_ERR(bdev->pins_boot) && !bdev->boot) {
+ err = PTR_ERR(bdev->pins_boot);
+ dev_err(&serdev->dev,
+ "Should assign RXD to LOW at boot stage\n");
+ return err;
+ }
+
+ bdev->pins_runtime = pinctrl_lookup_state(bdev->pinctrl,
+ "runtime");
+ if (IS_ERR(bdev->pins_runtime)) {
+ err = PTR_ERR(bdev->pins_runtime);
+ return err;
+ }
+
+ bdev->reset = devm_gpiod_get_optional(&serdev->dev, "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(bdev->reset)) {
+ err = PTR_ERR(bdev->reset);
+ return err;
+ }
+ } else if (btmtkuart_is_builtin_soc(bdev)) {
+ bdev->clk = devm_clk_get(&serdev->dev, "ref");
+ if (IS_ERR(bdev->clk))
+ return PTR_ERR(bdev->clk);
+ }
+
+ return 0;
+}
+
static int btmtkuart_probe(struct serdev_device *serdev)
{
struct btmtkuart_dev *bdev;
struct hci_dev *hdev;
+ int err;
bdev = devm_kzalloc(&serdev->dev, sizeof(*bdev), GFP_KERNEL);
if (!bdev)
return -ENOMEM;
- bdev->clk = devm_clk_get(&serdev->dev, "ref");
- if (IS_ERR(bdev->clk))
- return PTR_ERR(bdev->clk);
+ bdev->data = of_device_get_match_data(&serdev->dev);
+ if (!bdev->data)
+ return -ENODEV;
bdev->serdev = serdev;
serdev_device_set_drvdata(serdev, bdev);
serdev_device_set_client_ops(serdev, &btmtkuart_client_ops);
+ err = btmtkuart_parse_dt(serdev);
+ if (err < 0)
+ return err;
+
INIT_WORK(&bdev->tx_work, btmtkuart_tx_work);
skb_queue_head_init(&bdev->txq);
@@ -587,13 +1012,68 @@
hdev->manufacturer = 70;
set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
- if (hci_register_dev(hdev) < 0) {
+ if (btmtkuart_is_standalone(bdev)) {
+ err = clk_prepare_enable(bdev->osc);
+ if (err < 0)
+ return err;
+
+ if (bdev->boot) {
+ gpiod_set_value_cansleep(bdev->boot, 1);
+ } else {
+ /* Switch to the specific pin state for the booting
+ * requires.
+ */
+ pinctrl_select_state(bdev->pinctrl, bdev->pins_boot);
+ }
+
+ /* Power on */
+ err = regulator_enable(bdev->vcc);
+ if (err < 0) {
+ clk_disable_unprepare(bdev->osc);
+ return err;
+ }
+
+ /* Reset if the reset-gpios is available otherwise the board
+ * -level design should be guaranteed.
+ */
+ if (bdev->reset) {
+ gpiod_set_value_cansleep(bdev->reset, 1);
+ usleep_range(1000, 2000);
+ gpiod_set_value_cansleep(bdev->reset, 0);
+ }
+
+ /* Wait some time until device got ready and switch to the pin
+ * mode the device requires for UART transfers.
+ */
+ msleep(50);
+
+ if (bdev->boot)
+ devm_gpiod_put(&serdev->dev, bdev->boot);
+
+ pinctrl_select_state(bdev->pinctrl, bdev->pins_runtime);
+
+ /* A standalone device doesn't depends on power domain on SoC,
+ * so mark it as no callbacks.
+ */
+ pm_runtime_no_callbacks(&serdev->dev);
+
+ set_bit(BTMTKUART_REQUIRED_WAKEUP, &bdev->tx_state);
+ }
+
+ err = hci_register_dev(hdev);
+ if (err < 0) {
dev_err(&serdev->dev, "Can't register HCI device\n");
hci_free_dev(hdev);
- return -ENODEV;
+ goto err_regulator_disable;
}
return 0;
+
+err_regulator_disable:
+ if (btmtkuart_is_standalone(bdev))
+ regulator_disable(bdev->vcc);
+
+ return err;
}
static void btmtkuart_remove(struct serdev_device *serdev)
@@ -601,13 +1081,34 @@
struct btmtkuart_dev *bdev = serdev_device_get_drvdata(serdev);
struct hci_dev *hdev = bdev->hdev;
+ if (btmtkuart_is_standalone(bdev)) {
+ regulator_disable(bdev->vcc);
+ clk_disable_unprepare(bdev->osc);
+ }
+
hci_unregister_dev(hdev);
hci_free_dev(hdev);
}
+static const struct btmtkuart_data mt7622_data = {
+ .fwname = FIRMWARE_MT7622,
+};
+
+static const struct btmtkuart_data mt7663_data = {
+ .flags = BTMTKUART_FLAG_STANDALONE_HW,
+ .fwname = FIRMWARE_MT7663,
+};
+
+static const struct btmtkuart_data mt7668_data = {
+ .flags = BTMTKUART_FLAG_STANDALONE_HW,
+ .fwname = FIRMWARE_MT7668,
+};
+
#ifdef CONFIG_OF
static const struct of_device_id mtk_of_match_table[] = {
- { .compatible = "mediatek,mt7622-bluetooth"},
+ { .compatible = "mediatek,mt7622-bluetooth", .data = &mt7622_data},
+ { .compatible = "mediatek,mt7663u-bluetooth", .data = &mt7663_data},
+ { .compatible = "mediatek,mt7668u-bluetooth", .data = &mt7668_data},
{ }
};
MODULE_DEVICE_TABLE(of, mtk_of_match_table);
@@ -629,3 +1130,5 @@
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
MODULE_FIRMWARE(FIRMWARE_MT7622);
+MODULE_FIRMWARE(FIRMWARE_MT7663);
+MODULE_FIRMWARE(FIRMWARE_MT7668);