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Date: Fri, 29 Mar 2019 10:10:23 +0530
From: Harish Bandi <c-hbandi@...eaurora.org>
To: Matthias Kaehlcke <mka@...omium.org>
Cc: marcel@...tmann.org, johan.hedberg@...il.com,
linux-kernel@...r.kernel.org, linux-bluetooth@...r.kernel.org,
hemantg@...eaurora.org, linux-arm-msm@...r.kernel.org,
bgodavar@...eaurora.org, anubhavg@...eaurora.org,
devicetree@...r.kernel.org, mark.rutland@....com,
robh+dt@...nel.org
Subject: Re: [PATCH v6 1/2] Bluetooth: hci_qca: Added support for WCN3998
Hi Matthias,
On 2019-03-27 22:26, Matthias Kaehlcke wrote:
> On Wed, Mar 27, 2019 at 05:58:42PM +0530, Harish Bandi wrote:
>> 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@...eaurora.org>
>
> You forgot to add 'Reviewed-by' my tag from v5. No need to resend,
> I'll add it again below, but it's the general practice to include tags
> like 'Reviewed-by' or 'Acked-by' when sending a new revision.
>
[Harish] - sorry for missing, will follow from new version.
>> ---
>> Changes in V6:
>> - changed return value to false in the qca_is_wcn399x()stub
>> ---
>> drivers/bluetooth/btqca.c | 13 +++++++++++--
>> drivers/bluetooth/btqca.h | 8 +++++++-
>> drivers/bluetooth/hci_qca.c | 40
>> ++++++++++++++++++++++++++--------------
>> 3 files changed, 44 insertions(+), 17 deletions(-)
>>
>> diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
>> index 6122685..383e99f 100644
>> --- a/drivers/bluetooth/btqca.c
>> +++ b/drivers/bluetooth/btqca.c
>> @@ -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 +410,15 @@ 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)
>> +{
>> + if ((soc_type == QCA_WCN3990) || (soc_type == QCA_WCN3998))
>> + return true;
>> +
>> + return false;
>> +}
>> +EXPORT_SYMBOL_GPL(qca_is_wcn399x);
>> +
>> MODULE_AUTHOR("Ben Young Tae Kim <ytkim@....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 4ea995d..4af580a 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);
>> } else {
>> hu->init_speed = qcadev->init_speed;
>> @@ -627,7 +627,7 @@ 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);
>> @@ -1008,7 +1008,7 @@ 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);
>> @@ -1084,7 +1084,7 @@ 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;
>> @@ -1116,7 +1116,7 @@ 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);
>> @@ -1128,7 +1128,7 @@ 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);
>> }
>>
>> @@ -1201,7 +1201,7 @@ 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
>> @@ -1232,7 +1232,7 @@ 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)
>> @@ -1257,7 +1257,7 @@ 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;
>> @@ -1280,7 +1280,7 @@ 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 },
>> @@ -1291,6 +1291,17 @@ 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;
>> @@ -1424,8 +1435,8 @@ 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);
>> @@ -1489,7 +1500,7 @@ 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);
>> @@ -1499,7 +1510,8 @@ 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);
>
> Reviewed-by: Matthias Kaehlcke <mka@...omium.org>
>
> A suggestion for patch submission: it is often good to wait a few days
> before sending a new revision to give other reviewers time to
> comment. Reviewers may disagree with each other, this can then often
> be sorted out on the mailing list, rather than changing the code back
> and forth. Also it may save you a revision or two.
>
> That said, there are no hard rules and there is nothing wrong with
> being responsive, especially when bugs are pointed out. Just something
> to keep in mind and consider on a per patch/revision basis :)
>
[Harish] - Sure.
> Cheers
>
> Matthias
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