linux-kernel - Re: [PATCH v1 1/2] bus: mhi: host: pci_generic: Add supoprt for SA8775P target

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Message-ID: <20250222171012.2zjqs2fbgiesek63@thinkpad>
Date: Sat, 22 Feb 2025 22:40:12 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Mrinmay Sarkar <quic_msarkar@...cinc.com>
Cc: quic_shazhuss@...cinc.com, quic_ramkri@...cinc.com,
	quic_nayiluri@...cinc.com, quic_krichai@...cinc.com,
	quic_vbadigan@...cinc.com, quic_nitegupt@...cinc.com,
	Krzysztof Wilczyński <kw@...ux.com>,
	Kishon Vijay Abraham I <kishon@...nel.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Slark Xiao <slark_xiao@....com>, Qiang Yu <quic_qianyu@...cinc.com>,
	Mank Wang <mank.wang@...prisma.us>,
	Fabio Porcedda <fabio.porcedda@...il.com>,
	Jeff Johnson <quic_jjohnson@...cinc.com>, mhi@...ts.linux.dev,
	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org
Subject: Re: [PATCH v1 1/2] bus: mhi: host: pci_generic: Add supoprt for
 SA8775P target

On Thu, Dec 05, 2024 at 12:24:19PM +0530, Mrinmay Sarkar wrote:
> Add generic info for SA8775P target. SA8775P supports IP_SW
> usecase only. Hence use separate configuration to enable IP_SW
> channel.
> 
> Signed-off-by: Mrinmay Sarkar <quic_msarkar@...cinc.com>

Applied to mhi-next!

- Mani

> ---
>  drivers/bus/mhi/host/pci_generic.c | 34 ++++++++++++++++++++++++++++++
>  1 file changed, 34 insertions(+)
> 
> diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
> index 56ba4192c89c..b62a05e854e9 100644
> --- a/drivers/bus/mhi/host/pci_generic.c
> +++ b/drivers/bus/mhi/host/pci_generic.c
> @@ -245,6 +245,19 @@ struct mhi_pci_dev_info {
>  		.channel = ch_num,		\
>  	}
>  
> +static const struct mhi_channel_config modem_qcom_v2_mhi_channels[] = {
> +	MHI_CHANNEL_CONFIG_UL(46, "IP_SW0", 2048, 1),
> +	MHI_CHANNEL_CONFIG_DL(47, "IP_SW0", 2048, 2),
> +};
> +
> +static struct mhi_event_config modem_qcom_v2_mhi_events[] = {
> +	/* first ring is control+data ring */
> +	MHI_EVENT_CONFIG_CTRL(0, 64),
> +	/* Software channels dedicated event ring */
> +	MHI_EVENT_CONFIG_SW_DATA(1, 64),
> +	MHI_EVENT_CONFIG_SW_DATA(2, 64),
> +};
> +
>  static const struct mhi_channel_config modem_qcom_v1_mhi_channels[] = {
>  	MHI_CHANNEL_CONFIG_UL(4, "DIAG", 16, 1),
>  	MHI_CHANNEL_CONFIG_DL(5, "DIAG", 16, 1),
> @@ -275,6 +288,15 @@ static struct mhi_event_config modem_qcom_v1_mhi_events[] = {
>  	MHI_EVENT_CONFIG_HW_DATA(5, 2048, 101)
>  };
>  
> +static const struct mhi_controller_config modem_qcom_v3_mhiv_config = {
> +	.max_channels = 128,
> +	.timeout_ms = 8000,
> +	.num_channels = ARRAY_SIZE(modem_qcom_v2_mhi_channels),
> +	.ch_cfg = modem_qcom_v2_mhi_channels,
> +	.num_events = ARRAY_SIZE(modem_qcom_v2_mhi_events),
> +	.event_cfg = modem_qcom_v2_mhi_events,
> +};
> +
>  static const struct mhi_controller_config modem_qcom_v2_mhiv_config = {
>  	.max_channels = 128,
>  	.timeout_ms = 8000,
> @@ -294,6 +316,16 @@ static const struct mhi_controller_config modem_qcom_v1_mhiv_config = {
>  	.event_cfg = modem_qcom_v1_mhi_events,
>  };
>  
> +static const struct mhi_pci_dev_info mhi_qcom_sa8775p_info = {
> +	.name = "qcom-sa8775p",
> +	.edl_trigger = false,
> +	.config = &modem_qcom_v3_mhiv_config,
> +	.bar_num = MHI_PCI_DEFAULT_BAR_NUM,
> +	.dma_data_width = 32,
> +	.mru_default = 32768,
> +	.sideband_wake = false,
> +};
> +
>  static const struct mhi_pci_dev_info mhi_qcom_sdx75_info = {
>  	.name = "qcom-sdx75m",
>  	.fw = "qcom/sdx75m/xbl.elf",
> @@ -720,6 +752,8 @@ static const struct mhi_pci_dev_info mhi_netprisma_fcun69_info = {
>  
>  /* Keep the list sorted based on the PID. New VID should be added as the last entry */
>  static const struct pci_device_id mhi_pci_id_table[] = {
> +	{PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0116),
> +		.driver_data = (kernel_ulong_t) &mhi_qcom_sa8775p_info },
>  	{ PCI_DEVICE(PCI_VENDOR_ID_QCOM, 0x0304),
>  		.driver_data = (kernel_ulong_t) &mhi_qcom_sdx24_info },
>  	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_QCOM, 0x0306, PCI_VENDOR_ID_QCOM, 0x010c),
> -- 
> 2.25.1
> 

-- 
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