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Tue, 26 Mar 2019 16:44:04 -0700 (PDT) Received: from localhost ([2620:15c:202:1:75a:3f6e:21d:9374]) by smtp.gmail.com with ESMTPSA id d3sm26803122pfc.125.2019.03.26.16.44.04 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 26 Mar 2019 16:44:04 -0700 (PDT) Date: Tue, 26 Mar 2019 16:44:03 -0700 From: Matthias Kaehlcke To: Harish Bandi Cc: marcel@holtmann.org, johan.hedberg@gmail.com, linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org, hemantg@codeaurora.org, linux-arm-msm@vger.kernel.org, bgodavar@codeaurora.org, anubhavg@codeaurora.org, devicetree@vger.kernel.org, mark.rutland@arm.com, robh+dt@kernel.org Subject: Re: [PATCH v5 1/2] Bluetooth: hci_qca: Added support for WCN3998 Message-ID: <20190326234403.GZ112750@google.com> References: <1553600756-8264-1-git-send-email-c-hbandi@codeaurora.org> <1553600756-8264-2-git-send-email-c-hbandi@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1553600756-8264-2-git-send-email-c-hbandi@codeaurora.org> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org On Tue, Mar 26, 2019 at 05:15:55PM +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 > --- > Changes in V5: > - changed is_qca_soc_type_wcn399x_family to > - qca_is_wcn399x helper function > - moved the qca_is_wcn399x function to btqca.c > --- > 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 "); > 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..aca7b0d 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 -EOPNOTSUPP; This function returns a bool, hence returning an error code is not meaningful here. Just 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); Besides the return value in the qca_is_wcn399x() stub: Reviewed-by: Matthias Kaehlcke