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Message-ID: <fb00719f-26f2-38d0-b91e-7a49e94f52b8@linaro.org>
Date: Fri, 23 Jun 2023 14:52:31 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Luiz Augusto von Dentz <luiz.dentz@...il.com>,
Konrad Dybcio <konrad.dybcio@...aro.org>
Cc: "David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Balakrishna Godavarthi <bgodavar@...eaurora.org>,
Rocky Liao <rjliao@...eaurora.org>, Marcel Holtmann <marcel@...tmann.org>,
Johan Hedberg <johan.hedberg@...il.com>, Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>, netdev@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-bluetooth@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 2/4] bluetooth: qca: add support for WCN7850
Hi Luiz,
On 22/06/2023 21:54, Luiz Augusto von Dentz wrote:
> Hi Neil
>
> On Tue, Jun 20, 2023 at 8:43 AM Konrad Dybcio <konrad.dybcio@...aro.org> wrote:
>>
>> On 20.06.2023 17:19, Neil Armstrong wrote:
>>> Add support for the WCN7850 Bluetooth chipset.
>>>
>>> Tested on the SM8550 QRD platform.
>>>
>>> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
>>> ---
>> I don't have comments for this patch specifically, but:
>>
>>
>>> drivers/bluetooth/btqca.c | 7 +++++++
>>> drivers/bluetooth/btqca.h | 10 ++++++++++
>>> drivers/bluetooth/hci_qca.c | 48 ++++++++++++++++++++++++++++++++++-----------
>>> 3 files changed, 54 insertions(+), 11 deletions(-)
>>>
>>> diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
>>> index e7e58a956d15..037146b476ff 100644
>>> --- a/drivers/bluetooth/btqca.c
>>> +++ b/drivers/bluetooth/btqca.c
>>> @@ -617,6 +617,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
>>> } else if (soc_type == QCA_WCN6855) {
>>> snprintf(config.fwname, sizeof(config.fwname),
>>> "qca/hpbtfw%02x.tlv", rom_ver);
>>> + } else if (soc_type == QCA_WCN7850) {
>>> + snprintf(config.fwname, sizeof(config.fwname),
>>> + "qca/hmtbtfw%02x.tlv", rom_ver);
>>> } else {
>>> snprintf(config.fwname, sizeof(config.fwname),
>>> "qca/rampatch_%08x.bin", soc_ver);
>>> @@ -654,6 +657,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
>>> else if (soc_type == QCA_WCN6855)
>>> snprintf(config.fwname, sizeof(config.fwname),
>>> "qca/hpnv%02x.bin", rom_ver);
>>> + else if (soc_type == QCA_WCN7850)
>>> + snprintf(config.fwname, sizeof(config.fwname),
>>> + "qca/hmtnv%02x.bin", rom_ver);
>>> else
>>> snprintf(config.fwname, sizeof(config.fwname),
>>> "qca/nvm_%08x.bin", soc_ver);
>> The above changes should probably be made switch statements as well
>>
>>> @@ -695,6 +701,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
>>> case QCA_WCN3991:
>>> case QCA_WCN6750:
>>> case QCA_WCN6855:
>>> + case QCA_WCN7850:
>>> /* get fw build info */
>>> err = qca_read_fw_build_info(hdev);
>>> if (err < 0)
>>> diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
>>> index b884095bcd9d..ff1850e984fe 100644
>>> --- a/drivers/bluetooth/btqca.h
>>> +++ b/drivers/bluetooth/btqca.h
>>> @@ -148,6 +148,7 @@ enum qca_btsoc_type {
>>> QCA_QCA6390,
>>> QCA_WCN6750,
>>> QCA_WCN6855,
>>> + QCA_WCN7850,
>>> };
>>>
>>> #if IS_ENABLED(CONFIG_BT_QCA)
>>> @@ -173,6 +174,10 @@ static inline bool qca_is_wcn6855(enum qca_btsoc_type soc_type)
>>> {
>>> return soc_type == QCA_WCN6855;
>>> }
>>> +static inline bool qca_is_wcn7850(enum qca_btsoc_type soc_type)
>>> +{
>>> + return soc_type == QCA_WCN7850;
>>> +}
>>>
>>> #else
>>>
>>> @@ -216,6 +221,11 @@ static inline bool qca_is_wcn6855(enum qca_btsoc_type soc_type)
>>> return false;
>>> }
>>>
>>> +static inline bool qca_is_wcn7850(enum qca_btsoc_type soc_type)
>>> +{
>>> + return false;
>>> +}
>>> +
>>> static inline int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
>>> {
>>> return -EOPNOTSUPP;
>>> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
>>> index e30c979535b1..49b8d75d271e 100644
>>> --- a/drivers/bluetooth/hci_qca.c
>>> +++ b/drivers/bluetooth/hci_qca.c
>>> @@ -1322,7 +1322,8 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate)
>>> /* Give the controller time to process the request */
>>> if (qca_is_wcn399x(qca_soc_type(hu)) ||
>>> qca_is_wcn6750(qca_soc_type(hu)) ||
>>> - qca_is_wcn6855(qca_soc_type(hu)))
>>> + qca_is_wcn6855(qca_soc_type(hu)) ||
>>> + qca_is_wcn7850(qca_soc_type(hu)))
>>> usleep_range(1000, 10000);
>> Separate topic, but I see usages of the helper and raw comparisons
>> everywhere.. I'd vote for switch everywhere
>
> +1, most of the time it is preferable to go with switches which makes
> the code cleaner/more readable, Im fine not requiring it in this set
> but I hope someone looks into doing some cleanup in this code.
Since we have time until the end of the v6.5 merge window I'll add an intermediate
change adding switch/case for v2.
Thanks,
Neil
>
>> Konrad
>>> else
>>> msleep(300);
>>> @@ -1400,7 +1401,8 @@ static int qca_check_speeds(struct hci_uart *hu)
>>> {
>>> if (qca_is_wcn399x(qca_soc_type(hu)) ||
>>> qca_is_wcn6750(qca_soc_type(hu)) ||
>>> - qca_is_wcn6855(qca_soc_type(hu))) {
>>> + qca_is_wcn6855(qca_soc_type(hu)) ||
>>> + qca_is_wcn7850(qca_soc_type(hu))) {
>>> if (!qca_get_speed(hu, QCA_INIT_SPEED) &&
>>> !qca_get_speed(hu, QCA_OPER_SPEED))
>>> return -EINVAL;
>>> @@ -1435,7 +1437,8 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
>>> */
>>> if (qca_is_wcn399x(soc_type) ||
>>> qca_is_wcn6750(soc_type) ||
>>> - qca_is_wcn6855(soc_type))
>>> + qca_is_wcn6855(soc_type) ||
>>> + qca_is_wcn7850(soc_type))
>>> hci_uart_set_flow_control(hu, true);
>>>
>>> if (soc_type == QCA_WCN3990) {
>>> @@ -1454,7 +1457,8 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
>>> error:
>>> if (qca_is_wcn399x(soc_type) ||
>>> qca_is_wcn6750(soc_type) ||
>>> - qca_is_wcn6855(soc_type))
>>> + qca_is_wcn6855(soc_type) ||
>>> + qca_is_wcn7850(soc_type))
>>> hci_uart_set_flow_control(hu, false);
>>>
>>> if (soc_type == QCA_WCN3990) {
>>> @@ -1691,7 +1695,8 @@ static int qca_power_on(struct hci_dev *hdev)
>>>
>>> if (qca_is_wcn399x(soc_type) ||
>>> qca_is_wcn6750(soc_type) ||
>>> - qca_is_wcn6855(soc_type)) {
>>> + qca_is_wcn6855(soc_type) ||
>>> + qca_is_wcn7850(soc_type)) {
>>> ret = qca_regulator_init(hu);
>>> } else {
>>> qcadev = serdev_device_get_drvdata(hu->serdev);
>>> @@ -1733,7 +1738,8 @@ static int qca_setup(struct hci_uart *hu)
>>> bt_dev_info(hdev, "setting up %s",
>>> qca_is_wcn399x(soc_type) ? "wcn399x" :
>>> (soc_type == QCA_WCN6750) ? "wcn6750" :
>>> - (soc_type == QCA_WCN6855) ? "wcn6855" : "ROME/QCA6390");
>>> + (soc_type == QCA_WCN6855) ? "wcn6855" :
>>> + (soc_type == QCA_WCN7850) ? "wcn7850" : "ROME/QCA6390");
>>>
>>> qca->memdump_state = QCA_MEMDUMP_IDLE;
>>>
>>> @@ -1746,7 +1752,8 @@ static int qca_setup(struct hci_uart *hu)
>>>
>>> if (qca_is_wcn399x(soc_type) ||
>>> qca_is_wcn6750(soc_type) ||
>>> - qca_is_wcn6855(soc_type)) {
>>> + qca_is_wcn6855(soc_type) ||
>>> + qca_is_wcn7850(soc_type)) {
>>> set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
>>> hci_set_aosp_capable(hdev);
>>>
>>> @@ -1769,7 +1776,8 @@ static int qca_setup(struct hci_uart *hu)
>>>
>>> if (!(qca_is_wcn399x(soc_type) ||
>>> qca_is_wcn6750(soc_type) ||
>>> - qca_is_wcn6855(soc_type))) {
>>> + qca_is_wcn6855(soc_type) ||
>>> + qca_is_wcn7850(soc_type))) {
>>> /* Get QCA version information */
>>> ret = qca_read_soc_version(hdev, &ver, soc_type);
>>> if (ret)
>>> @@ -1909,6 +1917,20 @@ static const struct qca_device_data qca_soc_data_wcn6855 __maybe_unused = {
>>> .capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES,
>>> };
>>>
>>> +static const struct qca_device_data qca_soc_data_wcn7850 __maybe_unused = {
>>> + .soc_type = QCA_WCN7850,
>>> + .vregs = (struct qca_vreg []) {
>>> + { "vddio", 5000 },
>>> + { "vddaon", 26000 },
>>> + { "vdddig", 126000 },
>>> + { "vddrfa0p8", 102000 },
>>> + { "vddrfa1p2", 257000 },
>>> + { "vddrfa1p9", 302000 },
>>> + },
>>> + .num_vregs = 6,
>>> + .capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES,
>>> +};
>>> +
>>> static void qca_power_shutdown(struct hci_uart *hu)
>>> {
>>> struct qca_serdev *qcadev;
>>> @@ -2074,7 +2096,8 @@ static int qca_serdev_probe(struct serdev_device *serdev)
>>> if (data &&
>>> (qca_is_wcn399x(data->soc_type) ||
>>> qca_is_wcn6750(data->soc_type) ||
>>> - qca_is_wcn6855(data->soc_type))) {
>>> + qca_is_wcn6855(data->soc_type) ||
>>> + qca_is_wcn7850(data->soc_type))) {
>>> qcadev->btsoc_type = data->soc_type;
>>> qcadev->bt_power = devm_kzalloc(&serdev->dev,
>>> sizeof(struct qca_power),
>>> @@ -2105,7 +2128,8 @@ static int qca_serdev_probe(struct serdev_device *serdev)
>>> GPIOD_IN);
>>> if (IS_ERR_OR_NULL(qcadev->sw_ctrl) &&
>>> (data->soc_type == QCA_WCN6750 ||
>>> - data->soc_type == QCA_WCN6855))
>>> + data->soc_type == QCA_WCN6855 ||
>>> + data->soc_type == QCA_WCN7850))
>>> dev_warn(&serdev->dev, "failed to acquire SW_CTRL gpio\n");
>>>
>>> qcadev->susclk = devm_clk_get_optional(&serdev->dev, NULL);
>>> @@ -2182,7 +2206,8 @@ static void qca_serdev_remove(struct serdev_device *serdev)
>>>
>>> if ((qca_is_wcn399x(qcadev->btsoc_type) ||
>>> qca_is_wcn6750(qcadev->btsoc_type) ||
>>> - qca_is_wcn6855(qcadev->btsoc_type)) &&
>>> + qca_is_wcn6855(qcadev->btsoc_type) ||
>>> + qca_is_wcn7850(qcadev->btsoc_type)) &&
>>> power->vregs_on)
>>> qca_power_shutdown(&qcadev->serdev_hu);
>>> else if (qcadev->susclk)
>>> @@ -2368,6 +2393,7 @@ static const struct of_device_id qca_bluetooth_of_match[] = {
>>> { .compatible = "qcom,wcn3998-bt", .data = &qca_soc_data_wcn3998},
>>> { .compatible = "qcom,wcn6750-bt", .data = &qca_soc_data_wcn6750},
>>> { .compatible = "qcom,wcn6855-bt", .data = &qca_soc_data_wcn6855},
>>> + { .compatible = "qcom,wcn7850-bt", .data = &qca_soc_data_wcn7850},
>>> { /* sentinel */ }
>>> };
>>> MODULE_DEVICE_TABLE(of, qca_bluetooth_of_match);
>>>
>
>
>
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