linux-kernel - Re: [PATCH v1 2/2] Bluetooth: hci_qca: Add support for Qualcomm Bluetooth SoC WCN3991

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Message-ID: <739a8cadc6e01971a523d5a0b6fae057@codeaurora.org>
Date:   Wed, 06 Nov 2019 13:38:34 +0530
From:   Balakrishna Godavarthi <bgodavar@...eaurora.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     marcel@...tmann.org, 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,
        tientzu@...omium.org, seanpaul@...omium.org
Subject: Re: [PATCH v1 2/2] Bluetooth: hci_qca: Add support for Qualcomm
 Bluetooth SoC WCN3991

Hi Jorn,

On 2019-11-06 00:14, Bjorn Andersson wrote:
> On Tue 05 Nov 06:45 PST 2019, Balakrishna Godavarthi wrote:
> 
>> This patch add support for WCN3991 i.e. current values and fw download
>> support.
>> 
>> Signed-off-by: Balakrishna Godavarthi <bgodavar@...eaurora.org>
>> ---
>>  drivers/bluetooth/btqca.c   | 68 
>> +++++++++++++++++++++++++++++--------
>>  drivers/bluetooth/btqca.h   | 10 ++++--
>>  drivers/bluetooth/hci_qca.c | 16 +++++++--
>>  3 files changed, 74 insertions(+), 20 deletions(-)
>> 
>> diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
> [..]
>> @@ -48,13 +62,16 @@ int qca_read_soc_version(struct hci_dev *hdev, u32 
>> *soc_version)
>>  	}
>> 
>>  	if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
>> -	    edl->rtype != EDL_APP_VER_RES_EVT) {
>> +	    edl->rtype != rtype) {
>>  		bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
>>  			   edl->rtype);
>>  		err = -EIO;
>>  		goto out;
>>  	}
>> 
>> +	if (soc_type == QCA_WCN3991)
>> +		memcpy(&edl->data, &edl->data[1], sizeof(*ver));
> 
> memcpy() shouldn't be used when the two memory regions are overlapping,
> use memmove() for this.
> 

[Bala]: will update

> [..]
>> diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
>> index 7f7a2b2c0df6..309a720ff216 100644
>> --- a/drivers/bluetooth/btqca.h
>> +++ b/drivers/bluetooth/btqca.h
>> @@ -126,6 +126,7 @@ enum qca_btsoc_type {
>>  	QCA_ROME,
>>  	QCA_WCN3990,
>>  	QCA_WCN3998,
>> +	QCA_WCN3991,
> 
> Please maintain sort order.
> 

[Bala]: will update

> [..]
>> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
> [..]
>> @@ -1663,6 +1674,7 @@ static const struct of_device_id 
>> qca_bluetooth_of_match[] = {
>>  	{ .compatible = "qcom,qca6174-bt" },
>>  	{ .compatible = "qcom,wcn3990-bt", .data = &qca_soc_data_wcn3990},
>>  	{ .compatible = "qcom,wcn3998-bt", .data = &qca_soc_data_wcn3998},
>> +	{ .compatible = "qcom,wcn3991-bt", .data = &qca_soc_data_wcn3991},
> 
> Ditto
> 

[Bala]: will update

> Regards,
> Bjorn

-- 
Regards
Balakrishna.