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SubjectRe: [PATCH v7 1/2] Bluetooth: hci_qca: Added support for WCN3998
Hi Marcel,

On 2019-04-25 18:17, Marcel Holtmann wrote:
> Hi Harish,
>
>> Added new compatible for WCN3998 and corresponding voltage
>> and current values to WCN3998 compatible.
>> Changed driver code to support WCN3998
>>
>> Signed-off-by: Harish Bandi <c-hbandi@codeaurora.org>
>> Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
>> ---
>> Changes in V7:
>> - Initialized rom_ver to 0 to fix compiler warning
>> ---
>> drivers/bluetooth/btqca.c | 12 +++++++++---
>> drivers/bluetooth/btqca.h | 8 +++++++-
>> drivers/bluetooth/hci_qca.c | 40
>> ++++++++++++++++++++++++++--------------
>> 3 files changed, 42 insertions(+), 18 deletions(-)
>>
>> diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
>> index 6122685..495a52f 100644
>> --- a/drivers/bluetooth/btqca.c
>> +++ b/drivers/bluetooth/btqca.c
>> @@ -336,7 +336,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t
>> baudrate,
>> {
>> struct rome_config config;
>> int err;
>> - u8 rom_ver;
>> + u8 rom_ver = 0;
>
> what is this change for?
[Harish] - kbuild test robot gave compiler warning. So initialized.
drivers/bluetooth/btqca.c:369:3: warning: 'rom_ver' may be used
uninitialized in this function [-Wmaybe-uninitialized]

>
>> bt_dev_dbg(hdev, "QCA setup on UART");
>>
>> @@ -344,7 +344,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t
>> baudrate,
>>
>> /* Download rampatch file */
>> config.type = TLV_TYPE_PATCH;
>> - if (soc_type == QCA_WCN3990) {
>> + if (qca_is_wcn399x(soc_type)) {
>> /* Firmware files to download are based on ROM version.
>> * ROM version is derived from last two bytes of soc_ver.
>> */
>> @@ -365,7 +365,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t
>> baudrate,
>>
>> /* Download NVM configuration */
>> config.type = TLV_TYPE_NVM;
>> - if (soc_type == QCA_WCN3990)
>> + if (qca_is_wcn399x(soc_type))
>> snprintf(config.fwname, sizeof(config.fwname),
>> "qca/crnv%02x.bin", rom_ver);
>> else
>> @@ -410,6 +410,12 @@ int qca_set_bdaddr(struct hci_dev *hdev, const
>> bdaddr_t *bdaddr)
>> }
>> EXPORT_SYMBOL_GPL(qca_set_bdaddr);
>>
>> +bool qca_is_wcn399x(enum qca_btsoc_type soc_type)
>> +{
>> + return ((soc_type == QCA_WCN3990) || (soc_type == QCA_WCN3998));
>
> no () needed around soc_type = check.

[Harish] - OK, will change it.
>
>> +}
>> +EXPORT_SYMBOL_GPL(qca_is_wcn399x);
>> +
>
> Why is this exported. Make this an inline function in btqca.h.
[Harish] - This was used in btqca.c also to check the soc_type

- if (soc_type == QCA_WCN3990) {
>> + if (qca_is_wcn399x(soc_type)) {


>
>> MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>");
>> MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver
>> " VERSION);
>> MODULE_VERSION(VERSION);
>> diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
>> index 6fdc25d..0f68c9e7 100644
>> --- a/drivers/bluetooth/btqca.h
>> +++ b/drivers/bluetooth/btqca.h
>> @@ -132,7 +132,8 @@ enum qca_btsoc_type {
>> QCA_INVALID = -1,
>> QCA_AR3002,
>> QCA_ROME,
>> - QCA_WCN3990
>> + QCA_WCN3990,
>> + QCA_WCN3998,
>> };
>>
>> #if IS_ENABLED(CONFIG_BT_QCA)
>> @@ -142,6 +143,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t
>> baudrate,
>> enum qca_btsoc_type soc_type, u32 soc_ver);
>> int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version);
>> int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr);
>> +bool qca_is_wcn399x(enum qca_btsoc_type soc_type);
>> #else
>>
>> static inline int qca_set_bdaddr_rome(struct hci_dev *hdev, const
>> bdaddr_t *bdaddr)
>> @@ -165,4 +167,8 @@ static inline int qca_set_bdaddr(struct hci_dev
>> *hdev, const bdaddr_t *bdaddr)
>> return -EOPNOTSUPP;
>> }
>>
>> +static inline bool qca_is_wcn399x(enum qca_btsoc_type soc_type)
>> +{
>> + return false;
>> +}
>> #endif
>> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
>> index 7f75652..c53ee8d 100644
>> --- a/drivers/bluetooth/hci_qca.c
>> +++ b/drivers/bluetooth/hci_qca.c
>> @@ -521,7 +521,7 @@ static int qca_open(struct hci_uart *hu)
>> if (hu->serdev) {
>>
>> qcadev = serdev_device_get_drvdata(hu->serdev);
>> - if (qcadev->btsoc_type != QCA_WCN3990) {
>> + if (!qca_is_wcn399x(qcadev->btsoc_type)) {
>> gpiod_set_value_cansleep(qcadev->bt_en, 1);
>> /* Controller needs time to bootup. */
>> msleep(150);
>> @@ -629,7 +629,7 @@ static int qca_close(struct hci_uart *hu)
>>
>> if (hu->serdev) {
>> qcadev = serdev_device_get_drvdata(hu->serdev);
>> - if (qcadev->btsoc_type == QCA_WCN3990)
>> + if (qca_is_wcn399x(qcadev->btsoc_type))
>> qca_power_shutdown(hu);
>> else
>> gpiod_set_value_cansleep(qcadev->bt_en, 0);
>> @@ -1011,7 +1011,7 @@ static int qca_set_baudrate(struct hci_dev
>> *hdev, uint8_t baudrate)
>> msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS));
>>
>> /* Give the controller time to process the request */
>> - if (qca_soc_type(hu) == QCA_WCN3990)
>> + if (qca_is_wcn399x(qca_soc_type(hu)))
>> msleep(10);
>> else
>> msleep(300);
>> @@ -1087,7 +1087,7 @@ static unsigned int qca_get_speed(struct
>> hci_uart *hu,
>>
>> static int qca_check_speeds(struct hci_uart *hu)
>> {
>> - if (qca_soc_type(hu) == QCA_WCN3990) {
>> + if (qca_is_wcn399x(qca_soc_type(hu))) {
>> if (!qca_get_speed(hu, QCA_INIT_SPEED) &&
>> !qca_get_speed(hu, QCA_OPER_SPEED))
>> return -EINVAL;
>> @@ -1119,7 +1119,7 @@ static int qca_set_speed(struct hci_uart *hu,
>> enum qca_speed_type speed_type)
>> /* Disable flow control for wcn3990 to deassert RTS while
>> * changing the baudrate of chip and host.
>> */
>> - if (soc_type == QCA_WCN3990)
>> + if (qca_is_wcn399x(soc_type))
>> hci_uart_set_flow_control(hu, true);
>>
>> qca_baudrate = qca_get_baudrate_value(speed);
>> @@ -1131,7 +1131,7 @@ static int qca_set_speed(struct hci_uart *hu,
>> enum qca_speed_type speed_type)
>> host_set_baudrate(hu, speed);
>>
>> error:
>> - if (soc_type == QCA_WCN3990)
>> + if (qca_is_wcn399x(soc_type))
>> hci_uart_set_flow_control(hu, false);
>> }
>>
>> @@ -1204,7 +1204,7 @@ static int qca_setup(struct hci_uart *hu)
>> /* Patch downloading has to be done without IBS mode */
>> clear_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
>>
>> - if (soc_type == QCA_WCN3990) {
>> + if (qca_is_wcn399x(soc_type)) {
>> bt_dev_info(hdev, "setting up wcn3990");
>>
>> /* Enable NON_PERSISTENT_SETUP QUIRK to ensure to execute
>> @@ -1235,7 +1235,7 @@ static int qca_setup(struct hci_uart *hu)
>> qca_baudrate = qca_get_baudrate_value(speed);
>> }
>>
>> - if (soc_type != QCA_WCN3990) {
>> + if (!qca_is_wcn399x(soc_type)) {
>> /* Get QCA version information */
>> ret = qca_read_soc_version(hdev, &soc_ver);
>> if (ret)
>> @@ -1260,7 +1260,7 @@ static int qca_setup(struct hci_uart *hu)
>> }
>>
>> /* Setup bdaddr */
>> - if (soc_type == QCA_WCN3990)
>> + if (qca_is_wcn399x(soc_type))
>> hu->hdev->set_bdaddr = qca_set_bdaddr;
>> else
>> hu->hdev->set_bdaddr = qca_set_bdaddr_rome;
>> @@ -1283,7 +1283,7 @@ static int qca_setup(struct hci_uart *hu)
>> .dequeue = qca_dequeue,
>> };
>>
>> -static const struct qca_vreg_data qca_soc_data = {
>> +static const struct qca_vreg_data qca_soc_data_wcn3990 = {
>> .soc_type = QCA_WCN3990,
>> .vregs = (struct qca_vreg []) {
>> { "vddio", 1800000, 1900000, 15000 },
>> @@ -1294,6 +1294,17 @@ static int qca_setup(struct hci_uart *hu)
>> .num_vregs = 4,
>> };
>>
>> +static const struct qca_vreg_data qca_soc_data_wcn3998 = {
>> + .soc_type = QCA_WCN3998,
>> + .vregs = (struct qca_vreg []) {
>> + { "vddio", 1800000, 1900000, 10000 },
>> + { "vddxo", 1800000, 1900000, 80000 },
>> + { "vddrf", 1300000, 1352000, 300000 },
>> + { "vddch0", 3300000, 3300000, 450000 },
>> + },
>> + .num_vregs = 4,
>> +};
>> +
>> static void qca_power_shutdown(struct hci_uart *hu)
>> {
>> struct qca_data *qca = hu->priv;
>> @@ -1427,8 +1438,8 @@ static int qca_serdev_probe(struct serdev_device
>> *serdev)
>> qcadev->serdev_hu.serdev = serdev;
>> data = of_device_get_match_data(&serdev->dev);
>> serdev_device_set_drvdata(serdev, qcadev);
>> - if (data && data->soc_type == QCA_WCN3990) {
>> - qcadev->btsoc_type = QCA_WCN3990;
>> + if (data && qca_is_wcn399x(data->soc_type)) {
>> + qcadev->btsoc_type = data->soc_type;
>> qcadev->bt_power = devm_kzalloc(&serdev->dev,
>> sizeof(struct qca_power),
>> GFP_KERNEL);
>> @@ -1492,7 +1503,7 @@ static void qca_serdev_remove(struct
>> serdev_device *serdev)
>> {
>> struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
>>
>> - if (qcadev->btsoc_type == QCA_WCN3990)
>> + if (qca_is_wcn399x(qcadev->btsoc_type))
>> qca_power_shutdown(&qcadev->serdev_hu);
>> else
>> clk_disable_unprepare(qcadev->susclk);
>> @@ -1502,7 +1513,8 @@ static void qca_serdev_remove(struct
>> serdev_device *serdev)
>>
>> static const struct of_device_id qca_bluetooth_of_match[] = {
>> { .compatible = "qcom,qca6174-bt" },
>> - { .compatible = "qcom,wcn3990-bt", .data = &qca_soc_data},
>> + { .compatible = "qcom,wcn3990-bt", .data = &qca_soc_data_wcn3990},
>> + { .compatible = "qcom,wcn3998-bt", .data = &qca_soc_data_wcn3998},
>> { /* sentinel */ }
>> };
>> MODULE_DEVICE_TABLE(of, qca_bluetooth_of_match);
>
> Regards
>
> Marcel

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