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Message-Id: <08C6CC93-45C7-468E-AFC3-251507FA678E@holtmann.org>
Date: Thu, 25 Apr 2019 14:47:43 +0200
From: Marcel Holtmann <marcel@...tmann.org>
To: Harish Bandi <c-hbandi@...eaurora.org>
Cc: Johan Hedberg <johan.hedberg@...il.com>, mka@...omium.org,
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 v7 1/2] Bluetooth: hci_qca: Added support for WCN3998
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@...eaurora.org>
> Reviewed-by: Matthias Kaehlcke <mka@...omium.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?
> 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.
> +}
> +EXPORT_SYMBOL_GPL(qca_is_wcn399x);
> +
Why is this exported. Make this an inline function in btqca.h.
> 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 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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