linux-kernel - Re: [PATCH v12 2/2] Bluetooth: hci_qca: Add support for Qualcomm Bluetooth SoC QCA2066

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Message-ID: <ZMDGPTSEvfpHRDvh@hovoldconsulting.com>
Date:   Wed, 26 Jul 2023 09:07:41 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Tim Jiang <quic_tjiang@...cinc.com>
Cc:     marcel@...tmann.org, linux-kernel@...r.kernel.org,
        linux-bluetooth@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        quic_bgodavar@...cinc.com, quic_hemantg@...cinc.com
Subject: Re: [PATCH v12 2/2] Bluetooth: hci_qca: Add support for Qualcomm
 Bluetooth SoC QCA2066

On Wed, Jul 26, 2023 at 01:22:45PM +0800, Tim Jiang wrote:
> This patch adds support for QCA2066 firmware patch and NVM downloading.
> as the RF performance of QCA2066 SOC chip from different foundries may
> vary. Therefore we use different NVM to configure them based on board ID.
> 
> Signed-off-by: Tim Jiang <quic_tjiang@...cinc.com>
> ---
>  drivers/bluetooth/btqca.c   | 76 ++++++++++++++++++++++++++++++++++++-
>  drivers/bluetooth/btqca.h   |  3 +-
>  drivers/bluetooth/hci_qca.c |  7 ++++
>  3 files changed, 83 insertions(+), 3 deletions(-)
  
> +static void qca_generate_nvm_name(struct hci_dev *hdev, char *fwname,
> +		   size_t max_size, struct qca_btsoc_version ver, u16 bid)
> +{
> +	u8 rom_ver;
> +	u32 soc_ver;
> +	const char *variant;
> +
> +	soc_ver = get_soc_ver(ver.soc_id, ver.rom_ver);
> +	rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f);
> +
> +	if ((le32_to_cpu(ver.soc_id) & 0x0000ff00) == QCA_HSP_GF_SOC_ID)  /* hsp gf chip */
> +		variant = "g";
> +	else
> +		variant = "";
> +
> +	if (bid == 0x0)
> +		snprintf(fwname, max_size, "qca/hpnv%02x%s.bin", rom_ver, variant);
> +	else
> +		snprintf(fwname, max_size, "qca/hpnv%02x%s.%x", rom_ver, variant, bid);
> +
> +	bt_dev_dbg(hdev, "%s: nvm name is %s", __func__, fwname);

no need for "nvme name is" if you keep __func__ as a prefix

> +}
> +
>  int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
>  		   enum qca_btsoc_type soc_type, struct qca_btsoc_version ver,
>  		   const char *firmware_name)
> @@ -582,6 +645,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
>  	int err;
>  	u8 rom_ver = 0;
>  	u32 soc_ver;
> +	u16 boardid = 0;
>  
>  	bt_dev_dbg(hdev, "QCA setup on UART");

> diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
> index 453000df7aec..353c775f53ef 100644
> --- a/drivers/bluetooth/hci_qca.c
> +++ b/drivers/bluetooth/hci_qca.c
> @@ -1939,6 +1939,11 @@ static const struct qca_device_data qca_soc_data_qca6390 __maybe_unused = {
>  	.num_vregs = 0,
>  };
>  
> +static const struct qca_device_data qca_soc_data_qca2066 __maybe_unused = {
> +	.soc_type = QCA_QCA2066,
> +	.num_vregs = 0,
> +};

Add before qca_soc_data_qca6390 to maintain some order.

> +
>  static const struct qca_device_data qca_soc_data_wcn6750 __maybe_unused = {
>  	.soc_type = QCA_WCN6750,
>  	.vregs = (struct qca_vreg []) {
> @@ -2429,6 +2434,7 @@ 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,qca2066-bt", .data = &qca_soc_data_qca2066},

Keep the entries sorted by compatible.

Johan